LegalizeDAG.cpp revision d4b9c17fb705c2f58ceef4f37d789ddb56783584
13e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===-- LegalizeDAG.cpp - Implement SelectionDAG::Legalize ----------------===// 2edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 33e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// The LLVM Compiler Infrastructure 43e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 7edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman// 83e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 93e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// This file implements the SelectionDAG::Legalize method. 113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/CodeGen/SelectionDAG.h" 153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/CodeGen/MachineFunction.h" 1645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner#include "llvm/CodeGen/MachineFrameInfo.h" 17acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey#include "llvm/CodeGen/MachineJumpTableInfo.h" 1884bc5427d6883f73cfeae3da640acd011d35c006Chris Lattner#include "llvm/CodeGen/MachineModuleInfo.h" 1969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman#include "llvm/CodeGen/PseudoSourceValue.h" 2061bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng#include "llvm/Target/TargetFrameInfo.h" 213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Target/TargetLowering.h" 22e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner#include "llvm/Target/TargetData.h" 233d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng#include "llvm/Target/TargetMachine.h" 240f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner#include "llvm/Target/TargetOptions.h" 25707e0184233f27e0e9f9aee0309f2daab8cfe7f8Dan Gohman#include "llvm/Target/TargetSubtarget.h" 26adf6a965a321372c640845407195594835921eb4Chris Lattner#include "llvm/CallingConv.h" 273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Constants.h" 28c10305743c313558405079452138f03124e87581Reid Spencer#include "llvm/DerivedTypes.h" 295e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/CommandLine.h" 30a4f0b3a084d120cfc5b5bb06f64b222f5cb72740Chris Lattner#include "llvm/Support/Compiler.h" 31dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands#include "llvm/Support/MathExtras.h" 327971514755a08ec156a1b9c0f7f05d67919c56b7Chris Lattner#include "llvm/ADT/DenseMap.h" 33f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner#include "llvm/ADT/SmallVector.h" 3400755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner#include "llvm/ADT/SmallPtrSet.h" 35033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng#include <map> 363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerusing namespace llvm; 373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 385e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#ifndef NDEBUG 395e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic cl::opt<bool> 405e46a19ec848cd4fc9649bd5170c43d9e657668cChris LattnerViewLegalizeDAGs("view-legalize-dags", cl::Hidden, 415e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner cl::desc("Pop up a window to show dags before legalize")); 425e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#else 435e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic const bool ViewLegalizeDAGs = 0; 445e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#endif 455e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// SelectionDAGLegalize - This takes an arbitrary SelectionDAG as input and 483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// hacks on it until the target machine can handle it. This involves 493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating value sizes the machine cannot handle (promoting small sizes to 503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// large sizes or splitting up large values into small values) as well as 513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating operations the machine cannot handle. 523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// This code also does a small amount of optimization and recognition of idioms 543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// as part of its processing. For example, if a target does not support a 553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 'setcc' instruction efficiently, but does support 'brcc' instruction, this 563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// will attempt merge setcc and brc instructions into brcc's. 573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnernamespace { 59360e8200ec544a3c877ff74b48f445140ac9bbd6Chris Lattnerclass VISIBILITY_HIDDEN SelectionDAGLegalize { 603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner TargetLowering &TLI; 613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SelectionDAG &DAG; 623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Libcall insertion helpers. 646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// LastCALLSEQ_END - This keeps track of the CALLSEQ_END node that has been 666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// legalized. We use this to ensure that calls are properly serialized 676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// against each other, including inserted libcalls. 686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand LastCALLSEQ_END; 696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// IsLegalizingCall - This member is used *only* for purposes of providing 716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// helpful assertions that a libcall isn't created while another call is 726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// being legalized (which could lead to non-serialized call sequences). 736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool IsLegalizingCall; 746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner enum LegalizeAction { 7668a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Legal, // The target natively supports this operation. 7768a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Promote, // This operation should be executed in a larger type. 78d74ea2bbd8bb630331f35ead42d385249bd42af8Chris Lattner Expand // Try to expand this to other ops, otherwise use a libcall. 793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner }; 806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// ValueTypeActions - This is a bitvector that contains two bits for each 823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// value type, where the two bits correspond to the LegalizeAction enum. 833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// This can be queried with "getTypeAction(VT)". 8468a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner TargetLowering::ValueTypeActionImpl ValueTypeActions; 853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// LegalizedNodes - For nodes that are of legal width, and that have more 873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// than one use, this map indicates what regularized operand to use. This 883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// allows us to avoid legalizing the same thing more than once. 899cac5259fe237120a0c347d6d14e549005148f1bRoman Levenstein DenseMap<SDOperand, SDOperand> LegalizedNodes; 903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 9103c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// PromotedNodes - For nodes that are below legal width, and that have more 9203c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// than one use, this map indicates what promoted value to use. This allows 9303c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// us to avoid promoting the same thing more than once. 949cac5259fe237120a0c347d6d14e549005148f1bRoman Levenstein DenseMap<SDOperand, SDOperand> PromotedNodes; 9503c8546ec57523970874917854a2fb77b1ff598eChris Lattner 96c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandedNodes - For nodes that need to be expanded this map indicates 97c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the expanded version of the input. This allows 98c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// us to avoid expanding the same node more than once. 999cac5259fe237120a0c347d6d14e549005148f1bRoman Levenstein DenseMap<SDOperand, std::pair<SDOperand, SDOperand> > ExpandedNodes; 1003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 101c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// SplitNodes - For vector nodes that need to be split, this map indicates 102c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the split version of the input. This allows us 103c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// to avoid splitting the same node more than once. 104c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> > SplitNodes; 105c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// ScalarizedNodes - For nodes that need to be converted from vector types to 1077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// scalar types, this contains the mapping of ones we have already 108c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// processed to the result. 1097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand> ScalarizedNodes; 110c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1118afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner void AddLegalizedOperand(SDOperand From, SDOperand To) { 11269a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(From, To)); 11369a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 11469a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner if (From != To) 11569a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 1168afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner } 11703c8546ec57523970874917854a2fb77b1ff598eChris Lattner void AddPromotedOperand(SDOperand From, SDOperand To) { 11840030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = PromotedNodes.insert(std::make_pair(From, To)); 11903c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isNew && "Got into the map somehow?"); 12069a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 12169a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 12203c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 1238afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner 1243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerpublic: 1253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1269c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner SelectionDAGLegalize(SelectionDAG &DAG); 1273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// getTypeAction - Return how we should legalize values of this type, either 1293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// it is already legal or we need to expand it into multiple registers of 1303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// smaller integer type, or we need to promote it to a larger type. 13183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands LegalizeAction getTypeAction(MVT VT) const { 13268a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner return (LegalizeAction)ValueTypeActions.getTypeAction(VT); 1333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// isTypeLegal - Return true if this type is legal on this target. 1363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 13783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands bool isTypeLegal(MVT VT) const { 1383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return getTypeAction(VT) == Legal; 1393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner void LegalizeDAG(); 1423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 143456a93afcec7740c45cafa8354317f7b17987a6dChris Lattnerprivate: 1447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// HandleOp - Legalize, Promote, or Expand the specified operand as 145c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// appropriate for its type. 146c7029805ef35ce9805931067b841e6af11db382eChris Lattner void HandleOp(SDOperand Op); 147c7029805ef35ce9805931067b841e6af11db382eChris Lattner 148c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// LegalizeOp - We know that the specified value has a legal type. 149c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Recursively ensure that the operands have legal types, then return the 150c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// result. 1513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LegalizeOp(SDOperand O); 152c7029805ef35ce9805931067b841e6af11db382eChris Lattner 153826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// UnrollVectorOp - We know that the given vector has a legal type, however 154826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// the operation it performs is not legal and is an operation that we have 155826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// no way of lowering. "Unroll" the vector, splitting out the scalars and 156826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// operating on each element individually. 157826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand UnrollVectorOp(SDOperand O); 1586867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 1596867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman /// PerformInsertVectorEltInMemory - Some target cannot handle a variable 1606867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman /// insertion index for the INSERT_VECTOR_ELT instruction. In this case, it 1616867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman /// is necessary to spill the vector being inserted into to memory, perform 1626867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman /// the insert there, and then read the result back. 1636867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand PerformInsertVectorEltInMemory(SDOperand Vec, SDOperand Val, 1646867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand Idx); 165826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 166c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PromoteOp - Given an operation that produces a value in an invalid type, 167c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// promote it to compute the value into a larger type. The produced value 168c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// will have the correct bits for the low portion of the register, but no 169c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// guarantee is made about the top bits: it may be zero, sign-extended, or 170c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// garbage. 17103c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand PromoteOp(SDOperand O); 1723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 173c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandOp - Expand the specified SDOperand into its two component pieces 174c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, 175c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the LegalizeNodes map is filled in for any results that are not expanded, 176c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the ExpandedNodes map is filled in for any results that are expanded, and 177c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the Lo/Hi values are returned. This applies to integer types and Vector 178c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// types. 179c7029805ef35ce9805931067b841e6af11db382eChris Lattner void ExpandOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 180c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// SplitVectorOp - Given an operand of vector type, break it down into 1827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// two smaller values. 183c7029805ef35ce9805931067b841e6af11db382eChris Lattner void SplitVectorOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 184c7029805ef35ce9805931067b841e6af11db382eChris Lattner 18589b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// ScalarizeVectorOp - Given an operand of single-element vector type 18689b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// (e.g. v1f32), convert it into the equivalent operation that returns a 18789b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// scalar (e.g. f32) value. 1887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ScalarizeVectorOp(SDOperand O); 189c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1904352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// isShuffleLegal - Return true if a vector shuffle is legal with the 1914352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// specified mask and type. Targets can specify exactly which masks they 1924352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// support and the code generator is tasked with not creating illegal masks. 1934352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1944352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// Note that this will also return true for shuffles that are promoted to a 1954352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// different type. 1964352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1974352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// If this is a legal shuffle, this method returns the (possibly promoted) 1984352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// build_vector Mask. If it's not a legal shuffle, it returns null. 19983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDNode *isShuffleLegal(MVT VT, SDOperand Mask) const; 2004352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 201c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner bool LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 20200755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo); 2036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 204750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman void LegalizeSetCCOperands(SDOperand &LHS, SDOperand &RHS, SDOperand &CC); 205750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 206460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands SDOperand ExpandLibCall(RTLIB::Libcall LC, SDNode *Node, bool isSigned, 20777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi); 20883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDOperand ExpandIntToFP(bool isSigned, MVT DestTy, SDOperand Source); 209cad063f1a8ecda4fd556a733dc5eaa8a96acb80dChris Lattner 21083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDOperand EmitStackConvert(SDOperand SrcOp, MVT SlotVT, MVT DestVT); 211ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand ExpandBUILD_VECTOR(SDNode *Node); 2124352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand ExpandSCALAR_TO_VECTOR(SDNode *Node); 21383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDOperand ExpandLegalINT_TO_FP(bool isSigned, SDOperand LegalOp, MVT DestVT); 21483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDOperand PromoteLegalINT_TO_FP(SDOperand LegalOp, MVT DestVT, bool isSigned); 21583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDOperand PromoteLegalFP_TO_INT(SDOperand LegalOp, MVT DestVT, bool isSigned); 21600b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 217456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBSWAP(SDOperand Op); 218456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBitCount(unsigned Opc, SDOperand Op); 219e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner bool ExpandShift(unsigned Opc, SDOperand Op, SDOperand Amt, 220e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi); 2215b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner void ExpandShiftParts(unsigned NodeOp, SDOperand Op, SDOperand Amt, 2225b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi); 223b9fa3bc8f39bf1e8df48b85eae4563032dd20bfcChris Lattner 2247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ExpandEXTRACT_SUBVECTOR(SDOperand Op); 2254aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand ExpandEXTRACT_VECTOR_ELT(SDOperand Op); 2263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 2273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// isVectorShuffleLegal - Return true if a vector shuffle is legal with the 2304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// specified mask and type. Targets can specify exactly which masks they 2314352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// support and the code generator is tasked with not creating illegal masks. 2324352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// 2334352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// Note that this will also return true for shuffles that are promoted to a 2344352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// different type. 23583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan SandsSDNode *SelectionDAGLegalize::isShuffleLegal(MVT VT, SDOperand Mask) const { 2364352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE, VT)) { 2374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: return 0; 2384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 2394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 2404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 2424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If this is promoted to a different type, convert the shuffle mask and 2434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // ask if it is legal in the promoted type! 24483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(ISD::VECTOR_SHUFFLE, VT); 2454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If we changed # elements, change the shuffle mask. 2474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned NumEltsGrowth = 24883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NVT.getVectorNumElements() / VT.getVectorNumElements(); 2494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(NumEltsGrowth && "Cannot promote to vector type with fewer elts!"); 2504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (NumEltsGrowth > 1) { 2514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Renumber the elements. 252bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 2534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned i = 0, e = Mask.getNumOperands(); i != e; ++i) { 2544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand InOp = Mask.getOperand(i); 2554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned j = 0; j != NumEltsGrowth; ++j) { 2564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (InOp.getOpcode() == ISD::UNDEF) 2574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getNode(ISD::UNDEF, MVT::i32)); 2584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner else { 2594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned InEltNo = cast<ConstantSDNode>(InOp)->getValue(); 2604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getConstant(InEltNo*NumEltsGrowth+j, MVT::i32)); 2614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 264bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Mask = DAG.getNode(ISD::BUILD_VECTOR, NVT, &Ops[0], Ops.size()); 2654352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2664352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner VT = NVT; 2674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner return TLI.isShuffleMaskLegal(Mask, VT) ? Mask.Val : 0; 2714352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 2724352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2739c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris LattnerSelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag) 2749c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner : TLI(dag.getTargetLoweringInfo()), DAG(dag), 2759c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner ValueTypeActions(TLI.getValueTypeActions()) { 2766a648614e88586e85a36ceb5c1d3b84e4f55b458Nate Begeman assert(MVT::LAST_VALUETYPE <= 32 && 2773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Too many value types for ValueTypeActions to hold!"); 2783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 280e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// ComputeTopDownOrdering - Compute a top-down ordering of the dag, where Order 281e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// contains all of a nodes operands before it contains the node. 282e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattnerstatic void ComputeTopDownOrdering(SelectionDAG &DAG, 283e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SmallVector<SDNode*, 64> &Order) { 284e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 285e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner DenseMap<SDNode*, unsigned> Visited; 286e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner std::vector<SDNode*> Worklist; 287e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.reserve(128); 28832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 289e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Compute ordering from all of the leaves in the graphs, those (like the 290e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // entry node) that have no operands. 291e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(), 292e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner E = DAG.allnodes_end(); I != E; ++I) { 293e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (I->getNumOperands() == 0) { 294e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Visited[I] = 0 - 1U; 295e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(I); 296e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 29732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner } 29832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 299e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner while (!Worklist.empty()) { 300e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SDNode *N = Worklist.back(); 301e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.pop_back(); 302e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 303e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (++Visited[N] != N->getNumOperands()) 304e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner continue; // Haven't visited all operands yet 305e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 306e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.push_back(N); 307e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 308e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Now that we have N in, add anything that uses it if all of their operands 309e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // are now done. 310e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SDNode::use_iterator UI = N->use_begin(), E = N->use_end(); 311e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner UI != E; ++UI) 312dc1adac582fa120861f18ae7221bfe1421fea59fRoman Levenstein Worklist.push_back(UI->getUser()); 313e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 314e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 315e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner assert(Order.size() == Visited.size() && 316e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.size() == 317e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner (unsigned)std::distance(DAG.allnodes_begin(), DAG.allnodes_end()) && 318e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner "Error: DAG is cyclic!"); 31932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner} 32032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 3211618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner 3223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::LegalizeDAG() { 3236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 3246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 3256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 326ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // The legalize process is inherently a bottom-up recursive process (users 327ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // legalize their uses before themselves). Given infinite stack space, we 328ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // could just start legalizing on the root and traverse the whole graph. In 329ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // practice however, this causes us to run out of stack space on large basic 33032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // blocks. To avoid this problem, compute an ordering of the nodes where each 33132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // node is only legalized after all of its operands are legalized. 3320ed44170752b85c3dd3bbf95459dd2668864f5ecChris Lattner SmallVector<SDNode*, 64> Order; 333e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner ComputeTopDownOrdering(DAG, Order); 334ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 335c7029805ef35ce9805931067b841e6af11db382eChris Lattner for (unsigned i = 0, e = Order.size(); i != e; ++i) 336c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(SDOperand(Order[i], 0)); 33732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 33832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 3393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand OldRoot = DAG.getRoot(); 34032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 34132fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 3423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandedNodes.clear(); 3443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 34571c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner PromotedNodes.clear(); 346c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.clear(); 3477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizedNodes.clear(); 3483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 350190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner DAG.RemoveDeadNodes(); 3513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 3523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 3556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 3566831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 3576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 3586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 3596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 3606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 3616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 3636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand TheChain(Node, Node->getNumValues()-1); 3646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 3666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, 0); 3676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 3696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 3706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getValueType(i) == MVT::Other) { 3716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, i); 3726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, we walked into a node without a chain. 3766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) 3776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 3826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 3836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 385dc1adac582fa120861f18ae7221bfe1421fea59fRoman Levenstein SDNode *User = UI->getUser(); 3866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 3876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 3886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 3896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 3906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallStartFromCallEnd - Given a chained node that is part of a call 3956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 3966831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 3976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 3986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 3996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node->getOperand(0).getValueType() == MVT::Other && 4016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 4026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return FindCallStartFromCallEnd(Node->getOperand(0).Val); 4036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 4066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// see if any uses can reach Dest. If no dest operands can get to dest, 4076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 408c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 409c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// Keep track of the nodes we fine that actually do lead to Dest in 410c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// NodesLeadingTo. This avoids retraversing them exponential number of times. 411c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 412c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 41300755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo) { 4146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 4156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 416c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // If we've already processed this node and it does lead to Dest, there is no 417c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // need to reprocess it. 418c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (NodesLeadingTo.count(N)) return true; 419c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner 4206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 4216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 4226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 4236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 4246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LegalizedNodes.count(SDOperand(N, 0))) return false; 4256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 4276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (PromotedNodes.count(SDOperand(N, 0))) return false; 4286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: 4306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (ExpandedNodes.count(SDOperand(N, 0))) return false; 4316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 4336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 4356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 4366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 4376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 4386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 439c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(N->getOperand(i).Val, Dest, NodesLeadingTo); 4406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 441c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (OperandsLeadToDest) { 442c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo.insert(N); 443c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner return true; 444c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 4456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 44780edfb3af5ed214c5cd7797b37cb3bb024e98cc6Chris Lattner HandleOp(SDOperand(N, 0)); 4486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 4496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// HandleOp - Legalize, Promote, or Expand the specified operand as 452c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// appropriate for its type. 453c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::HandleOp(SDOperand Op) { 45483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 4557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (getTypeAction(VT)) { 456c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Bad type action!"); 4577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Legal: (void)LegalizeOp(Op); break; 4587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Promote: (void)PromoteOp(Op); break; 459c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Expand: 46083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (!VT.isVector()) { 4617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal scalar, expand it into its two component 4627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // pieces. 463c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 46409ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) 46509ec1b058331aadb29a348091611d23892b5c492Chris Lattner break; // Allow illegal target nodes. 466c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 46783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands } else if (VT.getVectorNumElements() == 1) { 4687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal single element vector, convert it to a 4697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // scalar operation. 4707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman (void)ScalarizeVectorOp(Op); 471c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 4727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Otherwise, this is an illegal multiple element vector. 4737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Split it in half and legalize both parts. 4747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand X, Y; 4757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SplitVectorOp(Op, X, Y); 476c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 477c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 478c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 479c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4819f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// ExpandConstantFP - Expands the ConstantFP node to an integer constant or 4829f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// a load from the constant pool. 4839f87788040786b1bc6530763e4cf7e105bfb2924Evan Chengstatic SDOperand ExpandConstantFP(ConstantFPSDNode *CFP, bool UseCP, 484279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 485004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool Extend = false; 486004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 487004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // If a FP immediate is precise when represented as a float and if the 488004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // target can do an extending load from float to double, we put it into 489004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // the constant pool as a float, even if it's is statically typed as a 490aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner // double. This shrinks FP constants and canonicalizes them for targets where 491aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner // an FP extending load is the same cost as a normal load (such as on the x87 492aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner // fp stack or PPC FP unit). 49383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = CFP->getValueType(0); 49402a260aa11a2e1b2c14335274d3c42ca3f3eabc0Chris Lattner ConstantFP *LLVMC = ConstantFP::get(CFP->getValueAPF()); 4959f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 4969e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen if (VT!=MVT::f64 && VT!=MVT::f32) 4979e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Invalid type expansion"); 4986cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman return DAG.getConstant(LLVMC->getValueAPF().convertToAPInt(), 499ef12057737229452c17983faa20857dba441ef05Evan Cheng (VT == MVT::f64) ? MVT::i64 : MVT::i32); 500279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 501279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 50283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OrigVT = VT; 50383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SVT = VT; 504ef12057737229452c17983faa20857dba441ef05Evan Cheng while (SVT != MVT::f32) { 50583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SVT = (MVT::SimpleValueType)(SVT.getSimpleVT() - 1); 506ef12057737229452c17983faa20857dba441ef05Evan Cheng if (CFP->isValueValidForType(SVT, CFP->getValueAPF()) && 507ef12057737229452c17983faa20857dba441ef05Evan Cheng // Only do this if the target has a native EXTLOAD instruction from 508ef12057737229452c17983faa20857dba441ef05Evan Cheng // smaller type. 5096fd599fa6916bd9438dbea7994cf2437bdf4ab8cEvan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, SVT) && 510aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner TLI.ShouldShrinkFPConstant(OrigVT)) { 51183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const Type *SType = SVT.getTypeForMVT(); 512ef12057737229452c17983faa20857dba441ef05Evan Cheng LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC, SType)); 513ef12057737229452c17983faa20857dba441ef05Evan Cheng VT = SVT; 514ef12057737229452c17983faa20857dba441ef05Evan Cheng Extend = true; 515ef12057737229452c17983faa20857dba441ef05Evan Cheng } 516004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 517004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 518004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 519ef12057737229452c17983faa20857dba441ef05Evan Cheng if (Extend) 520ef12057737229452c17983faa20857dba441ef05Evan Cheng return DAG.getExtLoad(ISD::EXTLOAD, OrigVT, DAG.getEntryNode(), 5213069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman CPIdx, PseudoSourceValue::getConstantPool(), 522ef12057737229452c17983faa20857dba441ef05Evan Cheng 0, VT); 523ef12057737229452c17983faa20857dba441ef05Evan Cheng return DAG.getLoad(OrigVT, DAG.getEntryNode(), CPIdx, 524ef12057737229452c17983faa20857dba441ef05Evan Cheng PseudoSourceValue::getConstantPool(), 0); 525004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng} 526004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 5276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 528912095becac923ff614d7b07728eb345ada67765Evan Cheng/// ExpandFCOPYSIGNToBitwiseOps - Expands fcopysign to a series of bitwise 529912095becac923ff614d7b07728eb345ada67765Evan Cheng/// operations. 530912095becac923ff614d7b07728eb345ada67765Evan Chengstatic 53183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan SandsSDOperand ExpandFCOPYSIGNToBitwiseOps(SDNode *Node, MVT NVT, 532912095becac923ff614d7b07728eb345ada67765Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 53383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 53483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = Node->getOperand(1).getValueType(); 5357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert((SrcVT == MVT::f32 || SrcVT == MVT::f64) && 5367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "fcopysign expansion only supported for f32 and f64"); 53783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcNVT = (SrcVT == MVT::f64) ? MVT::i64 : MVT::i32; 538068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 539912095becac923ff614d7b07728eb345ada67765Evan Cheng // First get the sign bit of second operand. 540068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask1 = (SrcVT == MVT::f64) 541912095becac923ff614d7b07728eb345ada67765Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT) 542912095becac923ff614d7b07728eb345ada67765Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT); 543068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1); 544912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand SignBit= DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Node->getOperand(1)); 545068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SignBit = DAG.getNode(ISD::AND, SrcNVT, SignBit, Mask1); 546912095becac923ff614d7b07728eb345ada67765Evan Cheng // Shift right or sign-extend it if the two operands have different types. 54783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands int SizeDiff = SrcNVT.getSizeInBits() - NVT.getSizeInBits(); 548912095becac923ff614d7b07728eb345ada67765Evan Cheng if (SizeDiff > 0) { 549912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SRL, SrcNVT, SignBit, 550912095becac923ff614d7b07728eb345ada67765Evan Cheng DAG.getConstant(SizeDiff, TLI.getShiftAmountTy())); 551912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::TRUNCATE, NVT, SignBit); 552912095becac923ff614d7b07728eb345ada67765Evan Cheng } else if (SizeDiff < 0) 553912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SIGN_EXTEND, NVT, SignBit); 554068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 555068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Clear the sign bit of first operand. 556068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask2 = (VT == MVT::f64) 557068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 558068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 559068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask2); 560912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 561068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Result = DAG.getNode(ISD::AND, NVT, Result, Mask2); 562068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 563068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Or the value with the sign bit. 564912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::OR, NVT, Result, SignBit); 565912095becac923ff614d7b07728eb345ada67765Evan Cheng return Result; 566912095becac923ff614d7b07728eb345ada67765Evan Cheng} 567912095becac923ff614d7b07728eb345ada67765Evan Cheng 568f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedStore - Expands an unaligned store to 2 half-size stores. 569f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 570f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedStore(StoreSDNode *ST, SelectionDAG &DAG, 571f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 572f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = ST->getChain(); 573f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = ST->getBasePtr(); 574f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Val = ST->getValue(); 57583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Val.getValueType(); 576907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int Alignment = ST->getAlignment(); 577907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int SVOffset = ST->getSrcValueOffset(); 57883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ST->getMemoryVT().isFloatingPoint() || 57983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands ST->getMemoryVT().isVector()) { 580907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a bitconvert of the value to the integer type of the 581907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // same size, then a (misaligned) int store. 58283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT intVT; 58383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.is128BitVector() || VT == MVT::ppcf128 || VT == MVT::f128) 5848155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen intVT = MVT::i128; 58583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands else if (VT.is64BitVector() || VT==MVT::f64) 586907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 587907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else if (VT==MVT::f32) 588907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 589907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 590cd9f1747ab72f9863924fbdf43493d9fa6256719Dale Johannesen assert(0 && "Unaligned store of unsupported type"); 591907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 592907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, intVT, Val); 593907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getStore(Chain, Result, Ptr, ST->getSrcValue(), 594907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, ST->isVolatile(), Alignment); 595907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 59683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(ST->getMemoryVT().isInteger() && 59783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands !ST->getMemoryVT().isVector() && 598907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen "Unaligned store of unknown type."); 599f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Get the half-size VT 60083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewStoredVT = 60183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands (MVT::SimpleValueType)(ST->getMemoryVT().getSimpleVT() - 1); 60283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands int NumBits = NewStoredVT.getSizeInBits(); 603f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int IncrementSize = NumBits / 8; 604f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 605f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Divide the stored value in two parts. 606f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 607f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo = Val; 608f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Hi = DAG.getNode(ISD::SRL, VT, Val, ShiftAmount); 609f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 610f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Store the two parts 611f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Store1, Store2; 612f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store1 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Lo:Hi, Ptr, 613f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset, NewStoredVT, 614f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->isVolatile(), Alignment); 615f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 616f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 617dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 618f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store2 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Hi:Lo, Ptr, 619f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset + IncrementSize, 620f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewStoredVT, ST->isVolatile(), Alignment); 621f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 622f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::TokenFactor, MVT::Other, Store1, Store2); 623f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 624f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 625f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedLoad - Expands an unaligned load to 2 half-size loads. 626f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 627f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedLoad(LoadSDNode *LD, SelectionDAG &DAG, 628f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 629f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int SVOffset = LD->getSrcValueOffset(); 630f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = LD->getChain(); 631f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = LD->getBasePtr(); 63283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = LD->getValueType(0); 63383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT LoadedVT = LD->getMemoryVT(); 63483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isFloatingPoint() || VT.isVector()) { 635907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a (misaligned) integer load of the same size, 6368155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // then bitconvert to floating point or vector. 63783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT intVT; 63883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (LoadedVT.is128BitVector() || 6393c8b59c546b5d56b2cae74da55e26eb994ed36bfDale Johannesen LoadedVT == MVT::ppcf128 || LoadedVT == MVT::f128) 6408155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen intVT = MVT::i128; 64183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands else if (LoadedVT.is64BitVector() || LoadedVT == MVT::f64) 642907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 643e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner else if (LoadedVT == MVT::f32) 644907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 645907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 6468155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen assert(0 && "Unaligned load of unsupported type"); 647907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 648907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand newLoad = DAG.getLoad(intVT, Chain, Ptr, LD->getSrcValue(), 649907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, LD->isVolatile(), 650907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen LD->getAlignment()); 651907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, LoadedVT, newLoad); 65283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isFloatingPoint() && LoadedVT != VT) 653907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, VT, Result); 654907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 655907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Ops[] = { Result, Chain }; 656907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 657907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Ops, 2); 658907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 65983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(LoadedVT.isInteger() && !LoadedVT.isVector() && 660e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner "Unaligned load of unsupported type."); 661e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner 6628155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // Compute the new VT that is half the size of the old one. This is an 6638155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // integer MVT. 66483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumBits = LoadedVT.getSizeInBits(); 66583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewLoadedVT; 66683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NewLoadedVT = MVT::getIntegerVT(NumBits/2); 667e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner NumBits >>= 1; 668e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner 669e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned Alignment = LD->getAlignment(); 670e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned IncrementSize = NumBits / 8; 671f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ISD::LoadExtType HiExtType = LD->getExtensionType(); 672f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 673f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If the original load is NON_EXTLOAD, the hi part load must be ZEXTLOAD. 674f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (HiExtType == ISD::NON_EXTLOAD) 675f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio HiExtType = ISD::ZEXTLOAD; 676f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 677f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Load the value in two parts 678f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo, Hi; 679f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (TLI.isLittleEndian()) { 680f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 681f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset, NewLoadedVT, LD->isVolatile(), Alignment); 682f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 683f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 684f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), 685f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 686dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands MinAlign(Alignment, IncrementSize)); 687f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 688f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), SVOffset, 689f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewLoadedVT,LD->isVolatile(), Alignment); 690f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 691f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 692f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 693f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 694dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands MinAlign(Alignment, IncrementSize)); 695f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 696f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 697f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // aggregate the two parts 698f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 699f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Result = DAG.getNode(ISD::SHL, VT, Hi, ShiftAmount); 700f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = DAG.getNode(ISD::OR, VT, Result, Lo); 701f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 702f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 703f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi.getValue(1)); 704f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 705f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ops[] = { Result, TF }; 706f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), Ops, 2); 707f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 708912095becac923ff614d7b07728eb345ada67765Evan Cheng 709826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// UnrollVectorOp - We know that the given vector has a legal type, however 710826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// the operation it performs is not legal and is an operation that we have 711826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// no way of lowering. "Unroll" the vector, splitting out the scalars and 712826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// operating on each element individually. 713826695281344e3a4c4d44d73dd155107aafd689bDan GohmanSDOperand SelectionDAGLegalize::UnrollVectorOp(SDOperand Op) { 71483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 715826695281344e3a4c4d44d73dd155107aafd689bDan Gohman assert(isTypeLegal(VT) && 716826695281344e3a4c4d44d73dd155107aafd689bDan Gohman "Caller should expand or promote operands that are not legal!"); 717826695281344e3a4c4d44d73dd155107aafd689bDan Gohman assert(Op.Val->getNumValues() == 1 && 718826695281344e3a4c4d44d73dd155107aafd689bDan Gohman "Can't unroll a vector with multiple results!"); 71983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NE = VT.getVectorNumElements(); 72083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EltVT = VT.getVectorElementType(); 721826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 722826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SmallVector<SDOperand, 8> Scalars; 723826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SmallVector<SDOperand, 4> Operands(Op.getNumOperands()); 724826695281344e3a4c4d44d73dd155107aafd689bDan Gohman for (unsigned i = 0; i != NE; ++i) { 725826695281344e3a4c4d44d73dd155107aafd689bDan Gohman for (unsigned j = 0; j != Op.getNumOperands(); ++j) { 726826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand Operand = Op.getOperand(j); 72783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OperandVT = Operand.getValueType(); 72883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (OperandVT.isVector()) { 729826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // A vector operand; extract a single element. 73083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OperandEltVT = OperandVT.getVectorElementType(); 731826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operands[j] = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, 732826695281344e3a4c4d44d73dd155107aafd689bDan Gohman OperandEltVT, 733826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operand, 734826695281344e3a4c4d44d73dd155107aafd689bDan Gohman DAG.getConstant(i, MVT::i32)); 735826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } else { 736826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // A scalar operand; just use it as is. 737826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operands[j] = Operand; 738826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 739826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 740826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Scalars.push_back(DAG.getNode(Op.getOpcode(), EltVT, 741826695281344e3a4c4d44d73dd155107aafd689bDan Gohman &Operands[0], Operands.size())); 742826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 743826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 744826695281344e3a4c4d44d73dd155107aafd689bDan Gohman return DAG.getNode(ISD::BUILD_VECTOR, VT, &Scalars[0], Scalars.size()); 745826695281344e3a4c4d44d73dd155107aafd689bDan Gohman} 746826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 747007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands/// GetFPLibCall - Return the right libcall for the given floating point type. 74883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sandsstatic RTLIB::Libcall GetFPLibCall(MVT VT, 749007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F32, 750007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F64, 751007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F80, 752007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_PPCF128) { 753007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands return 754007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f32 ? Call_F32 : 755007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f64 ? Call_F64 : 756007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f80 ? Call_F80 : 757007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::ppcf128 ? Call_PPCF128 : 758007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::UNKNOWN_LIBCALL; 759007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands} 760007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands 7616867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman/// PerformInsertVectorEltInMemory - Some target cannot handle a variable 7626867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman/// insertion index for the INSERT_VECTOR_ELT instruction. In this case, it 7636867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman/// is necessary to spill the vector being inserted into to memory, perform 7646867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman/// the insert there, and then read the result back. 7656867991d541d08ca95d86841eca5f7c1d5096864Nate BegemanSDOperand SelectionDAGLegalize:: 7666867991d541d08ca95d86841eca5f7c1d5096864Nate BegemanPerformInsertVectorEltInMemory(SDOperand Vec, SDOperand Val, SDOperand Idx) { 7676867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand Tmp1 = Vec; 7686867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand Tmp2 = Val; 7696867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand Tmp3 = Idx; 7706867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 7716867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // If the target doesn't support this, we have to spill the input vector 7726867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // to a temporary stack slot, update the element, then reload it. This is 7736867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // badness. We could also load the value into a vector register (either 7746867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // with a "move to register" or "extload into register" instruction, then 7756867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // permute it into place, if the idx is a constant and if the idx is 7766867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // supported by the target. 77783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Tmp1.getValueType(); 77883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EltVT = VT.getVectorElementType(); 77983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT IdxVT = Tmp3.getValueType(); 78083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PtrVT = TLI.getPointerTy(); 7816867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand StackPtr = DAG.CreateStackTemporary(VT); 7826867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 7836867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(StackPtr.Val); 7846867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman int SPFI = StackPtrFI->getIndex(); 7856867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 7866867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Store the vector. 7876867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Tmp1, StackPtr, 7886867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman PseudoSourceValue::getFixedStack(), 7896867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SPFI); 7906867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 7916867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Truncate or zero extend offset to target pointer type. 7928e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands unsigned CastOpc = IdxVT.bitsGT(PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 7936867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); 7946867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Add the offset to the index. 79583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned EltSize = EltVT.getSizeInBits()/8; 7966867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 7976867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); 7986867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Store the scalar value. 7996867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Ch = DAG.getTruncStore(Ch, Tmp2, StackPtr2, 8006867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman PseudoSourceValue::getFixedStack(), SPFI, EltVT); 8016867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Load the updated vector. 8026867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman return DAG.getLoad(VT, Ch, StackPtr, PseudoSourceValue::getFixedStack(),SPFI); 8036867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman} 8046867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 805a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// LegalizeOp - We know that the specified value has a legal type, and 806a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// that its operands are legal. Now ensure that the operation itself 807a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// is legal, recursively ensuring that the operands' operations remain 808a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// legal. 8093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 81009ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) // Allow illegal target nodes. 81109ec1b058331aadb29a348091611d23892b5c492Chris Lattner return Op; 81209ec1b058331aadb29a348091611d23892b5c492Chris Lattner 813c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 814e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 81545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 816e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 8173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 818e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 81945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 82045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 821c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 822c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 8233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 824c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 82503c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 8263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 8273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 8283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 82945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 83045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 8319cac5259fe237120a0c347d6d14e549005148f1bRoman Levenstein DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 832e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 8333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 8349373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 8353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 836456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 837456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 8383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 839948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 840948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 841948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 842948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 843948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 84437efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::TargetJumpTable: 845948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 8463181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 847948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 848948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 849b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::TargetGlobalTLSAddress: 850948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 851948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 852948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 85369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case ISD::MEMOPERAND: 854948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::STRING: 855948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 856276dcbdc8db6614cfd5004dc7dc35e437ddf9c58Duncan Sands case ISD::ARG_FLAGS: 857948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 858a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 859948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 860948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 8613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 862d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 863d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 864d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 865f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 866c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 867d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 868c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner 869f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); 870d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 871d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 872d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 873d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 874d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 875d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 876e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 87739833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 878e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 8793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 8803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 8810d3b67809ccab229a03db8c1bede852fb89eb081Lauro Ramos Venancio case ISD::GLOBAL_OFFSET_TABLE: 8823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 883b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::GlobalTLSAddress: 88403c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 88537efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::ConstantPool: 88637efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::JumpTable: // Nothing to do. 8870c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 8880c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 889948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 890948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 891948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 892948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 8930c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 8940c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 8950c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 8963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 897bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::FRAMEADDR: 898bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::RETURNADDR: 899bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // The only option for these nodes is to custom lower them. If the target 900bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // does not custom lower them, then return zero. 901bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Tmp1 = TLI.LowerOperation(Op, DAG); 902bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman if (Tmp1.Val) 903bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = Tmp1; 904bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman else 905bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = DAG.getConstant(0, TLI.getPointerTy()); 906bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman break; 907055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov case ISD::FRAME_TO_ARGS_OFFSET: { 90883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 909066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 910066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov default: assert(0 && "This action is not supported yet!"); 911066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Custom: 912066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 913066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov if (Result.Val) break; 914066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov // Fall Thru 915066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Legal: 916066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = DAG.getConstant(0, VT); 917066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 918066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov } 919055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov } 920066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 9212bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case ISD::EXCEPTIONADDR: { 9222bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 92383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 9242bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 9252bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey default: assert(0 && "This action is not supported yet!"); 9262bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Expand: { 9278782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionAddressRegister(); 928b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Result = DAG.getCopyFromReg(Tmp1, Reg, VT); 9292bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 9302bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 9312bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Custom: 9322bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = TLI.LowerOperation(Op, DAG); 9332bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey if (Result.Val) break; 9342bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey // Fall Thru 935eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 936eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp1 }; 937eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 938b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Ops, 2); 9398782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 9408782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 9418782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 942eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 943b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands if (Result.Val->getNumValues() == 1) break; 944b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 945b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands assert(Result.Val->getNumValues() == 2 && 946b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands "Cannot return more than two values!"); 947b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 948b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // Since we produced two values, make sure to remember that we 949b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // legalized both of them. 950b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp1 = LegalizeOp(Result); 951b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); 952b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(0), Tmp1); 953b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(1), Tmp2); 954b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands return Op.ResNo ? Tmp2 : Tmp1; 9558782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case ISD::EHSELECTION: { 9568782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 9578782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); 95883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 9598782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 9608782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey default: assert(0 && "This action is not supported yet!"); 9618782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Expand: { 9628782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionSelectorRegister(); 963b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Result = DAG.getCopyFromReg(Tmp2, Reg, VT); 9648782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 9658782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 9668782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Custom: 9678782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = TLI.LowerOperation(Op, DAG); 9688782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey if (Result.Val) break; 9698782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey // Fall Thru 970eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 971eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp2 }; 972eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 973b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Ops, 2); 9742bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 9752bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 9762bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 977eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 978b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands if (Result.Val->getNumValues() == 1) break; 979b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 980b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands assert(Result.Val->getNumValues() == 2 && 981b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands "Cannot return more than two values!"); 982b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 983b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // Since we produced two values, make sure to remember that we 984b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // legalized both of them. 985b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp1 = LegalizeOp(Result); 986b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); 987b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(0), Tmp1); 988b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(1), Tmp2); 989b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands return Op.ResNo ? Tmp2 : Tmp1; 9906d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky case ISD::EH_RETURN: { 99183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 9922365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // The only "good" option for this node is to custom lower it. 9932365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 9942365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov default: assert(0 && "This action is not supported at all!"); 9952365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Custom: 9962365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 9972365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov if (Result.Val) break; 9982365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Fall Thru 9992365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Legal: 10002365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Target does not know, how to lower this, lower to noop 10012365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = LegalizeOp(Node->getOperand(0)); 10022365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 10032365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov } 10046d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky } 10052365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 100608951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 100708951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 100808951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1009c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 101008951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 1011308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 1012c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 1013456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 1014456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 101569a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 101669a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 10177310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 1018f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 1019c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 10207310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 1021f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 1022c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 1023f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 1024c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 1025c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 1026c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1027c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 10287310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 10297310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 103013c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 103113c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 103213c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 103313c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 103413c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 1035fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 103683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 1037fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 1038ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 1039ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 104083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isInteger()) 1041fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 104283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands else if (VT.isFloatingPoint()) 104383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands Result = DAG.getConstantFP(APFloat(APInt(VT.getSizeInBits(), 0)), 1044f41db2136fe50e1a92aabfcb3ba1ec1f70f5f0d5Dale Johannesen VT); 1045fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 1046fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 1047fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 1048ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 1049fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 1050fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 1051fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 1052fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 1053d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 105448b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_W_CHAIN: 105548b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_WO_CHAIN: 105648b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_VOID: { 1057f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 1058d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1059d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1060f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 106110d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner 106210d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner // Allow the target to custom lower its intrinsics if it wants to. 106348b61a729df6576c8833a83893d4086bddff69a5Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == 106410d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner TargetLowering::Custom) { 106510d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 106610d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner if (Tmp3.Val) Result = Tmp3; 106713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 106813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 106913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner if (Result.Val->getNumValues() == 1) break; 107013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 107113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 107213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner assert(Result.Val->getNumValues() == 2 && 107313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner "Cannot return more than two values!"); 107413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 107513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Since loads produce two values, make sure to remember that we 107613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // legalized both of them. 107713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 107813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 107913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner return Result.getValue(Op.ResNo); 1080d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 108136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 108236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 108336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 108436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 108536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 108636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 108736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 108836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 1089f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 109044c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey MachineModuleInfo *MMI = DAG.getMachineModuleInfo(); 1091abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 10921ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey bool useLABEL = TLI.isOperationLegal(ISD::LABEL, MVT::Other); 1093abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 109444c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey if (MMI && (useDEBUG_LOC || useLABEL)) { 1095abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 1096e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 1097abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 1098e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 109944c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned SrcFile = MMI->RecordSource(DirName, FName); 1100abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 1101bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 1102abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 1103abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 1104abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 1105abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 1106abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 1107abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 1108abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 1109abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 1110bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, &Ops[0], Ops.size()); 1111abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 1112d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 1113d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 1114a647c92ec2b3c91e1e6de25cc5c7860912c7626bEvan Cheng unsigned ID = MMI->RecordSourceLine(Line, Col, SrcFile); 1115abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 1116bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng Ops.push_back(DAG.getConstant(0, MVT::i32)); // a debug label 1117bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng Result = DAG.getNode(ISD::LABEL, MVT::Other, &Ops[0], Ops.size()); 1118abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1119e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 1120e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 1121e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 112236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1123e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 112436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 11259ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 11269ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 1127f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 112836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 11299ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 11309ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 11319ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 11329ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 11339ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 11349ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 11359ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 11369ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 113736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 113836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 1139f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 114036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 114136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 114236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 114336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1144a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng 1145a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng case ISD::DECLARE: 1146a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng assert(Node->getNumOperands() == 3 && "Invalid DECLARE node!"); 1147a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng switch (TLI.getOperationAction(ISD::DECLARE, MVT::Other)) { 1148a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng default: assert(0 && "This action is not supported yet!"); 1149a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng case TargetLowering::Legal: 1150a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1151a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the address. 1152a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the variable. 1153a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1154a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng break; 1155e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner case TargetLowering::Expand: 1156e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 1157e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner break; 1158a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng } 1159a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng break; 1160f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 1161f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 1162abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 1163f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 1164f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 1165abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1166abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1167abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 1168abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 1169abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 1170c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 1171abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1172abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1173abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1174abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 11751ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey case ISD::LABEL: 1176bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng assert(Node->getNumOperands() == 3 && "Invalid LABEL node!"); 11771ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey switch (TLI.getOperationAction(ISD::LABEL, MVT::Other)) { 1178abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 1179abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1180abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1181abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 1182bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the "flavor" operand. 1183bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1184f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 1185a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner case TargetLowering::Expand: 1186a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner Result = LegalizeOp(Node->getOperand(0)); 1187a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner break; 1188f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 1189551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 119036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 119127b7db549e4c5bff4579d209304de5628513edebEvan Cheng case ISD::PREFETCH: 119227b7db549e4c5bff4579d209304de5628513edebEvan Cheng assert(Node->getNumOperands() == 4 && "Invalid Prefetch node!"); 119327b7db549e4c5bff4579d209304de5628513edebEvan Cheng switch (TLI.getOperationAction(ISD::PREFETCH, MVT::Other)) { 119427b7db549e4c5bff4579d209304de5628513edebEvan Cheng default: assert(0 && "This action is not supported yet!"); 119527b7db549e4c5bff4579d209304de5628513edebEvan Cheng case TargetLowering::Legal: 119627b7db549e4c5bff4579d209304de5628513edebEvan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 119727b7db549e4c5bff4579d209304de5628513edebEvan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the address. 119827b7db549e4c5bff4579d209304de5628513edebEvan Cheng Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the rw specifier. 119927b7db549e4c5bff4579d209304de5628513edebEvan Cheng Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize locality specifier. 120027b7db549e4c5bff4579d209304de5628513edebEvan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 120127b7db549e4c5bff4579d209304de5628513edebEvan Cheng break; 120227b7db549e4c5bff4579d209304de5628513edebEvan Cheng case TargetLowering::Expand: 120327b7db549e4c5bff4579d209304de5628513edebEvan Cheng // It's a noop. 120427b7db549e4c5bff4579d209304de5628513edebEvan Cheng Result = LegalizeOp(Node->getOperand(0)); 120527b7db549e4c5bff4579d209304de5628513edebEvan Cheng break; 120627b7db549e4c5bff4579d209304de5628513edebEvan Cheng } 120727b7db549e4c5bff4579d209304de5628513edebEvan Cheng break; 120827b7db549e4c5bff4579d209304de5628513edebEvan Cheng 120922c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth case ISD::MEMBARRIER: { 121022c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth assert(Node->getNumOperands() == 6 && "Invalid MemBarrier node!"); 1211d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth switch (TLI.getOperationAction(ISD::MEMBARRIER, MVT::Other)) { 1212d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth default: assert(0 && "This action is not supported yet!"); 1213d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth case TargetLowering::Legal: { 1214d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth SDOperand Ops[6]; 1215d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Ops[0] = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1216e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands for (int x = 1; x < 6; ++x) { 1217e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands Ops[x] = Node->getOperand(x); 1218e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands if (!isTypeLegal(Ops[x].getValueType())) 1219e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands Ops[x] = PromoteOp(Ops[x]); 1220e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands } 1221d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Result = DAG.UpdateNodeOperands(Result, &Ops[0], 6); 1222d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth break; 1223d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth } 1224d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth case TargetLowering::Expand: 1225d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth //There is no libgcc call for this op 1226d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Result = Node->getOperand(0); // Noop 1227d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth break; 1228d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth } 122922c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth break; 123022c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth } 123122c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth 123263307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LCS: { 123363307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang unsigned int num_operands = 4; 123463307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang assert(Node->getNumOperands() == num_operands && "Invalid Atomic node!"); 123563307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang SDOperand Ops[4]; 123663307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang for (unsigned int x = 0; x < num_operands; ++x) 123763307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang Ops[x] = LegalizeOp(Node->getOperand(x)); 123863307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang Result = DAG.UpdateNodeOperands(Result, &Ops[0], num_operands); 123963307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang 124063307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 124163307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang default: assert(0 && "This action is not supported yet!"); 124263307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case TargetLowering::Custom: 124363307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang Result = TLI.LowerOperation(Result, DAG); 124463307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang break; 124563307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case TargetLowering::Legal: 124663307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang break; 124763307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang } 124863307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 124963307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 125063307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang return Result.getValue(Op.ResNo); 125163307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang } 1252ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_LAS: 125363307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LSS: 125463307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_AND: 125563307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_OR: 125663307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_XOR: 125763307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_MIN: 125863307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_MAX: 125963307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_UMIN: 126063307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_UMAX: 1261ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_SWAP: { 126263307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang unsigned int num_operands = 3; 126363307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang assert(Node->getNumOperands() == num_operands && "Invalid Atomic node!"); 126463307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang SDOperand Ops[3]; 126563307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang for (unsigned int x = 0; x < num_operands; ++x) 126626ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth Ops[x] = LegalizeOp(Node->getOperand(x)); 126763307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang Result = DAG.UpdateNodeOperands(Result, &Ops[0], num_operands); 126826ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth 126926ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 1270ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth default: assert(0 && "This action is not supported yet!"); 127126ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth case TargetLowering::Custom: 127226ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth Result = TLI.LowerOperation(Result, DAG); 127326ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth break; 127463307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case TargetLowering::Expand: 127563307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang Result = SDOperand(TLI.ExpandOperationResult(Op.Val, DAG),0); 127663307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang break; 127726ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth case TargetLowering::Legal: 1278ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 1279ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 128026ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 128126ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 128226ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth return Result.getValue(Op.ResNo); 128363307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang } 1284c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel case ISD::Constant: { 1285c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel ConstantSDNode *CN = cast<ConstantSDNode>(Node); 1286c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel unsigned opAction = 1287c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel TLI.getOperationAction(ISD::Constant, CN->getValueType(0)); 1288c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel 12893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 12903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 12913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1292c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (opAction == TargetLowering::Custom) { 1293c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 1294c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (Tmp1.Val) 1295c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Result = Tmp1; 1296c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 12973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1298c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 12993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 13003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 13013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 13023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 13033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 13043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 13053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 13063181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 13073181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 1308e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman case TargetLowering::Legal: 1309e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 13103181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 13113181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 13123181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 13133181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 13143181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 13153181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 13163181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 1317e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman case TargetLowering::Expand: { 1318e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman // Check to see if this FP immediate is already legal. 1319e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman bool isLegal = false; 1320e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 1321e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman E = TLI.legal_fpimm_end(); I != E; ++I) { 1322e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman if (CFP->isExactlyValue(*I)) { 1323e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman isLegal = true; 1324e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 1325e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 1326e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 1327e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman // If this is a legal constant, turn it into a TargetConstantFP node. 1328e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman if (isLegal) 1329e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 1330279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Result = ExpandConstantFP(CFP, true, DAG, TLI); 13313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1332e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 13333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 13343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1335040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 1336040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 1337c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1338c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1339c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1340c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 1341c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1342c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1343c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 1344c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1345040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 1346f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 1347040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 1348c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1349c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1350f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1351a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 1352a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 1353fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 1354fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 1355f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 1356fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 1357b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 1358b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val && "Target didn't custom lower this node!"); 13590ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen // A call within a calling sequence must be legalized to something 13600ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen // other than the normal CALLSEQ_END. Violating this gets Legalize 13610ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen // into an infinite loop. 13620ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen assert ((!IsLegalizingCall || 13630ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen Node->getOpcode() != ISD::CALL || 13640ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen Tmp3.Val->getOpcode() != ISD::CALLSEQ_END) && 13650ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen "Nested CALLSEQ_START..CALLSEQ_END not supported."); 13660f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 13670f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // The number of incoming and outgoing values should match; unless the final 13680f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // outgoing value is a flag. 13690f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling assert((Tmp3.Val->getNumValues() == Result.Val->getNumValues() || 13700f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling (Tmp3.Val->getNumValues() == Result.Val->getNumValues() + 1 && 13710f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Tmp3.Val->getValueType(Tmp3.Val->getNumValues() - 1) == 13720f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling MVT::Flag)) && 1373b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 1374e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 1375f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 1376e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 1377b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner for (unsigned i = 0, e = Tmp3.Val->getNumValues(); i != e; ++i) { 13780f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling if (Tmp3.Val->getValueType(i) == MVT::Flag) 13790f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling continue; 1380b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 1381e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner if (Op.ResNo == i) 1382e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 1383e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner AddLegalizedOperand(SDOperand(Node, i), Tmp1); 1384e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 1385e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 1386557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::EXTRACT_SUBREG: { 1387557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1388557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(1)); 1389557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1390557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1391557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1392557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1393557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1394557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::INSERT_SUBREG: { 1395557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1396557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = LegalizeOp(Node->getOperand(1)); 1397557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(2)); 1398557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1399557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp3 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1400557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1401557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1402557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1403b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 1404b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 14052332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 14062332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 14072332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 14082332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 14092332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 14102332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14112332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14122332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 1413ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 1414ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 1415b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 14162332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14172332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14182332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 14192332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 14202332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 14210325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 14220325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // The type of the value to insert may not be legal, even though the vector 14230325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // type is legal. Legalize/Promote accordingly. We do not handle Expand 14240325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // here. 14250325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 14260325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman default: assert(0 && "Cannot expand insert element operand"); 14270325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); break; 14280325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman case Promote: Tmp2 = PromoteOp(Node->getOperand(1)); break; 14290325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman } 14302332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 14312332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 14322332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 14332332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 14342332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 14352332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 14362332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14372332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 14382281a991414f681c482157265461b29a923ef620Nate Begeman Tmp4 = TLI.LowerOperation(Result, DAG); 14392281a991414f681c482157265461b29a923ef620Nate Begeman if (Tmp4.Val) { 14402281a991414f681c482157265461b29a923ef620Nate Begeman Result = Tmp4; 14412332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14422332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14432332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 14442332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 14458d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 14468d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 14478d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 14480325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // SCALAR_TO_VECTOR requires that the type of the value being inserted 14490325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // match the element type of the vector being created. 14500325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman if (Tmp2.getValueType() == 145183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands Op.getValueType().getVectorElementType()) { 14520325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman SDOperand ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 14530325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Tmp1.getValueType(), Tmp2); 14540325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 145583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElts = Tmp1.getValueType().getVectorNumElements(); 145683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShufMaskVT = 145783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT::getIntVectorWithNumElements(NumElts); 145883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShufMaskEltVT = ShufMaskVT.getVectorElementType(); 14590325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 14600325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // We generate a shuffle of InVec and ScVec, so the shuffle mask 14610325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // should be 0,1,2,3,4,5... with the appropriate element replaced with 14620325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // elt 0 of the RHS. 14630325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman SmallVector<SDOperand, 8> ShufOps; 14640325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman for (unsigned i = 0; i != NumElts; ++i) { 14650325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman if (i != InsertPos->getValue()) 14660325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 14670325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman else 14680325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 14690325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman } 14700325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman SDOperand ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 14710325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman &ShufOps[0], ShufOps.size()); 14720325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 14730325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 14740325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Tmp1, ScVec, ShufMask); 14750325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Result = LegalizeOp(Result); 14760325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman break; 14778d5a894501b7546dee94df03118b90126c420820Chris Lattner } 14788d5a894501b7546dee94df03118b90126c420820Chris Lattner } 14796867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Result = PerformInsertVectorEltInMemory(Tmp1, Tmp2, Tmp3); 14802332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14812332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14822332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14832332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 1484ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 14854352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 14864352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 14874352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 14884352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 14894352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 1490ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 1491ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1492ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 1493ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 1494ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 1495ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 1496ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 14974d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 14984d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 14994d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 15004d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 15014d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 15024d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 15034d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 15044352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 15054352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 1506ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 1507ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1508ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 150987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 151087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 151187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 151287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 151387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 151487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 15154352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 15164352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 15174352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 15184352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 15194352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 15204352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 15214352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 152218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 152318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Tmp3.Val) { 152418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 152518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 152618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 152718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 152818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 152983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 153083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EltVT = VT.getVectorElementType(); 153183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PtrVT = TLI.getPointerTy(); 153218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Mask = Node->getOperand(2); 153318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 1534bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand,8> Ops; 153518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 153618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Arg = Mask.getOperand(i); 153718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 153818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 153918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 154018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 154118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned Idx = cast<ConstantSDNode>(Arg)->getValue(); 154218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 154318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 154418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 154518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 154618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 154718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 154818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 154918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1550bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 15514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 155218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 15534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 15544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 155583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Node->getValueType(0); 155683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 15574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 15584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 15594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 15604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 15614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 15624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 15634352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp3 = SDOperand(isShuffleLegal(OVT, Node->getOperand(2)), 0); 15644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(Tmp3.Val && "Shuffle not legal?"); 15654352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 15664352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 15674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 15684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 156987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 157087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1571384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1572384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 15737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 1574384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1575384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 15767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_VECTOR_ELT(Result); 1577384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1578384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 15797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 15807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 15817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); 15827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 15837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_SUBVECTOR(Result); 15846595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 15856595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 15866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 15876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 15886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 15906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 15916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 159200755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner {SmallPtrSet<SDNode*, 32> NodesLeadingTo; 15936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1594c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node, 1595c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1596c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 15976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 15996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 16006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 16016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 16026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 16036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1604c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1605b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1606b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1607b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 16086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 16096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 16106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1611f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 16126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1613f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 16146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 16156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 16166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 16174b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 16184b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 16194b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 16204b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 16216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 16226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 16236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 16246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 16256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 16266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 16276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 16286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 16296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 16306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 16316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 16326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 16336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 16346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 163516cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 16366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 16376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 16386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 16396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 16409cac5259fe237120a0c347d6d14e549005148f1bRoman Levenstein DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 16416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 16426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 16436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 16446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 16456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 16466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 16476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 16483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 164970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 165070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 165170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 165270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1653f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 165470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1655f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 165670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 165770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 165870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 165970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 166070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1661f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 166270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 166370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1664f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 166570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 16666a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 16674b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 16686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 16696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 16704b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 16714b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 16724b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 16734b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 16744b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 16754b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1676a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 167783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 1678fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1679fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1680fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1681c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1682fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1683c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 16845f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 168561bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1686a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1687903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1688903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1689903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1690903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1691903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 16920f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 16930f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // Chain the dynamic stack allocation so that it doesn't modify the stack 16940f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // pointer when other instructions are using the stack. 16950f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Chain = DAG.getCALLSEQ_START(Chain, 16960f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy())); 16970f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1698903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 169961bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, VT); 170061bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Chain = SP.getValue(1); 170161bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned Align = cast<ConstantSDNode>(Tmp3)->getValue(); 170261bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned StackAlign = 170361bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng TLI.getTargetMachine().getFrameInfo()->getStackAlignment(); 170461bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng if (Align > StackAlign) 17053e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng SP = DAG.getNode(ISD::AND, VT, SP, 17063e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng DAG.getConstant(-(uint64_t)Align, VT)); 170761bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Tmp1 = DAG.getNode(ISD::SUB, VT, SP, Size); // Value 17080f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Chain = DAG.getCopyToReg(Chain, SPReg, Tmp1); // Output chain 17090f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 17100f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Tmp2 = 17110f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getCALLSEQ_END(Chain, 17120f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy()), 17130f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy()), 17140f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling SDOperand()); 17150f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1716c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1717c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1718903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1719903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1720903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 17215f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 17225f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1723c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1724c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1725a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1726903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1727a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1728903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1729a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1730903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1731903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1732c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1733c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1734903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1735a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 173625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1737f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 173825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 173925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 174025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 174125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 174225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[0]); 174325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 174425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 174525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 174625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 174725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 174825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getValue() >> 3; 174925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 175025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[i]); 175125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 175225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 175325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 175425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 175525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 175625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 175725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 175825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 175925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 176025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 176125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 176225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1763ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 176425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1765f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1766ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1767ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1768c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1769ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1770ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 177125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1772c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1773c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 17756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 17766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 17776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 17786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1779c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1780c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 178137efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 178237efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 178337efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 178437efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 178537efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 178637efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 178737efe6764568a3829fee26aba532283131d1a104Nate Begeman 178837efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 178937efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 179037efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 179137efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 179237efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 179337efe6764568a3829fee26aba532283131d1a104Nate Begeman } 179437efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 179537efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 17963d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case ISD::BR_JT: 17973d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17983d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // Ensure that libcalls are emitted before a branch. 17993d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 18003d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Tmp1); 18013d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 18023d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 18033d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. 18043d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 18053d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 18063d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { 18073d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng default: assert(0 && "This action is not supported yet!"); 18083d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Legal: break; 18093d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Custom: 18103d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 18113d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (Tmp1.Val) Result = Tmp1; 18123d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 18133d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Expand: { 18143d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Chain = Result.getOperand(0); 18153d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Table = Result.getOperand(1); 18163d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Index = Result.getOperand(2); 18173d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 181883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PTy = TLI.getPointerTy(); 1819acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey MachineFunction &MF = DAG.getMachineFunction(); 1820acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); 18213d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); 18223d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); 1823acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1824acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey SDOperand LD; 1825acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey switch (EntrySize) { 1826acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey default: assert(0 && "Size of jump table not supported yet."); break; 182769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, 18283069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getJumpTable(), 0); break; 182969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, 18303069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getJumpTable(), 0); break; 1831acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey } 1832acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1833cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = LD; 1834acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { 18353d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // For PIC, the sequence is: 18363d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // BRIND(load(Jumptable + index) + RelocBase) 1837cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng // RelocBase can be JumpTable, GOT or some sort of global base. 1838cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng if (PTy != MVT::i32) 1839cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::SIGN_EXTEND, PTy, Addr); 1840cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::ADD, PTy, Addr, 1841cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng TLI.getPICJumpTableRelocBase(Table, DAG)); 18423d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 1843cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); 18443d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 18453d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 18463d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 1847c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1848c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 18496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 18506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 18516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 18526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 18536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 185447e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 185547e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 185647e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 185747e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 185847e9223e06390897c3834f8c527001df392570ffChris Lattner break; 18592e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman case Promote: { 186047e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 1861f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner 1862f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // The top bits of the promoted condition are not necessarily zero, ensure 1863f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // that the value is properly zero extended. 18642e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned BitWidth = Tmp2.getValueSizeInBits(); 1865ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp2, 18662e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(BitWidth, BitWidth-1))) 1867f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 186847e9223e06390897c3834f8c527001df392570ffChris Lattner break; 186947e9223e06390897c3834f8c527001df392570ffChris Lattner } 18702e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman } 1871456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1872456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1873c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 18747cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 18757cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 18767cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1877456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1878456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1879456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1880456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1881456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 18827cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 18837cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 18847cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 18857cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 18867cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 18877cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 18887cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 18897cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 18907cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 18917cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 18927cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 18937cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 18947cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 18957cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 18967cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 18977cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 18987cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 18997cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 19006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 19016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 19026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1903750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1904750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1905750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1906181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1907750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1908722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 1909722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng 1910750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1911750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1912750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1913750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1914750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1915750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1916750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1917750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1918750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1919750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1920456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1921181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1922181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1923456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1924456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1925456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1926456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1927181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 19287cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1929c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1930f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1931466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1932466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1933466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 19342d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1935466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1936466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 193783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 1938466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1939466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1940466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1941456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1942466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1943466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1944f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 1945f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1946f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1947f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1948f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 194983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands getABITypeAlignment(LD->getMemoryVT().getTypeForMVT()); 1950f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1951f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1952f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1953f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp3 = Result.getOperand(0); 1954f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp4 = Result.getOperand(1); 1955907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp3 = LegalizeOp(Tmp3); 1956907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp4 = LegalizeOp(Tmp4); 1957f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1958f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1959f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 1960466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1961466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1962466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp1.Val) { 1963466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1964466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1965466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1966466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1967466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1968466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 196983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(VT.isVector() && "Cannot promote this load!"); 1970466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 197183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1972466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1973466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1974d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1975d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1976466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 197741f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1978466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1979f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1980466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1981466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1982466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1983466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp3); 1984466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp4); 1985466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp4 : Tmp3; 1986466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 198783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = LD->getMemoryVT(); 198883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned SrcWidth = SrcVT.getSizeInBits(); 1989f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands int SVOffset = LD->getSrcValueOffset(); 1990f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned Alignment = LD->getAlignment(); 1991f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands bool isVolatile = LD->isVolatile(); 1992f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 199383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (SrcWidth != SrcVT.getStoreSizeInBits() && 1994f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Some targets pretend to have an i1 loading operation, and actually 1995f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // load an i8. This trick is correct for ZEXTLOAD because the top 7 1996f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bits are guaranteed to be zero; it helps the optimizers understand 1997f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // that these bits are zero. It is also useful for EXTLOAD, since it 1998f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // tells the optimizers that those bits are undefined. It would be 1999f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // nice to have an effective generic way of getting these benefits... 2000f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Until such a way is found, don't insist on promoting i1 here. 2001f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands (SrcVT != MVT::i1 || 2002f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands TLI.getLoadXAction(ExtType, MVT::i1) == TargetLowering::Promote)) { 2003f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Promote to a byte-sized load if not loading an integral number of 2004f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bytes. For example, promote EXTLOAD:i20 -> EXTLOAD:i24. 200583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NewWidth = SrcVT.getStoreSizeInBits(); 200683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = MVT::getIntegerVT(NewWidth); 2007f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Ch; 2008f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2009f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // The extra bits are guaranteed to be zero, since we stored them that 2010f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // way. A zext load from NVT thus automatically gives zext from SrcVT. 2011f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2012f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ISD::LoadExtType NewExtType = 2013f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtType == ISD::ZEXTLOAD ? ISD::ZEXTLOAD : ISD::EXTLOAD; 2014f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2015f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getExtLoad(NewExtType, Node->getValueType(0), 2016f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), SVOffset, 2017f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands NVT, isVolatile, Alignment); 2018f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2019f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = Result.getValue(1); // The chain. 2020f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2021f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 2022f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Having the top bits zero doesn't help when sign extending. 2023f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 2024f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 2025f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else if (ExtType == ISD::ZEXTLOAD || NVT == Result.getValueType()) 2026f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // All the top bits are guaranteed to be zero - inform the optimizers. 2027f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::AssertZext, Result.getValueType(), Result, 2028f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getValueType(SrcVT)); 2029f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2030f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 2031f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 2032f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else if (SrcWidth & (SrcWidth - 1)) { 2033f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If not loading a power-of-2 number of bits, expand as two loads. 203483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(SrcVT.isExtended() && !SrcVT.isVector() && 2035f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands "Unsupported extload!"); 2036f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned RoundWidth = 1 << Log2_32(SrcWidth); 2037f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(RoundWidth < SrcWidth); 2038f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned ExtraWidth = SrcWidth - RoundWidth; 2039f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(ExtraWidth < RoundWidth); 2040f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 2041f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands "Load size not an integral number of bytes!"); 204283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT RoundVT = MVT::getIntegerVT(RoundWidth); 204383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ExtraVT = MVT::getIntegerVT(ExtraWidth); 2044f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Lo, Hi, Ch; 2045f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned IncrementSize; 2046f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2047f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (TLI.isLittleEndian()) { 2048f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> ZEXTLOAD:i16 | (shl EXTLOAD@+2:i8, 16) 2049f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the bottom RoundWidth bits. 2050f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, 2051f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 2052f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Alignment); 2053f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2054f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 2055f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 2056f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 2057f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 2058f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 2059f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 2060f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtraVT, isVolatile, 2061f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 2062f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2063f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Build a factor node to remember that this load is independent of the 2064f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // other one. 2065f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 2066f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 2067f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2068f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 2069f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, 2070f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 2071f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2072f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 2073f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); 2074f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 2075f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Big endian - avoid unaligned loads. 2076f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> (shl EXTLOAD:i16, 8) | ZEXTLOAD@+2:i8 2077f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the top RoundWidth bits. 2078f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 2079f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 2080f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Alignment); 2081f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2082f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 2083f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 2084f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 2085f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 2086f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, 2087f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 2088f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtraVT, isVolatile, 2089f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 2090f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2091f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Build a factor node to remember that this load is independent of the 2092f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // other one. 2093f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 2094f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 2095f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2096f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 2097f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, 2098f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 2099f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2100f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 2101f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); 2102f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2103f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2104f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 2105f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 2106f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 2107f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands switch (TLI.getLoadXAction(ExtType, SrcVT)) { 2108f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands default: assert(0 && "This action is not supported yet!"); 2109f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Custom: 2110f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands isCustom = true; 2111f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // FALLTHROUGH 2112f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Legal: 2113f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 2114f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getValue(0); 2115f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getValue(1); 2116f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2117f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (isCustom) { 2118f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp3 = TLI.LowerOperation(Result, DAG); 2119f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (Tmp3.Val) { 2120f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp3); 2121f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2122f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2123f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 2124f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If this is an unaligned load and the target doesn't support it, 2125f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // expand it. 2126f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (!TLI.allowsUnalignedMemoryAccesses()) { 2127f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned ABIAlignment = TLI.getTargetData()-> 212883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands getABITypeAlignment(LD->getMemoryVT().getTypeForMVT()); 2129f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (LD->getAlignment() < ABIAlignment){ 2130f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 2131f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands TLI); 2132f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getOperand(0); 2133f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getOperand(1); 2134f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp1); 2135f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp2); 2136f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2137f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2138f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2139f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 2140f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Expand: 2141f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 2142f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 2143f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 2144f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValueOffset(), 2145f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->isVolatile(), LD->getAlignment()); 2146f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 2147f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 2148f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Load.getValue(1)); 2149f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 2150f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2151f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(ExtType != ISD::EXTLOAD &&"EXTLOAD should always be supported!"); 2152f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Turn the unsupported load into an EXTLOAD followed by an explicit 2153f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // zero/sign extend inreg. 2154f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 2155f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), 2156f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValueOffset(), SrcVT, 2157f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->isVolatile(), LD->getAlignment()); 2158f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand ValRes; 2159f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 2160f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 2161f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 2162f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else 2163f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 2164f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 2165f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 2166466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 2167466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 21689d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 2169f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2170466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 2171466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 2172466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 2173466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2174466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp2 : Tmp1; 217501ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 217601ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 21775dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 217883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OpTy = Node->getOperand(0).getValueType(); 21795dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 2180c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 21815dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 21825dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 21835dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 21845dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 218583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(OpTy.getSizeInBits()/2, 21865dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 21875dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 21885dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 21895dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 21905dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 21915dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 21925dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 21935dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 21945dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 21955dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 21965dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 21975dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 21985dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 21995dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 22005dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 22015dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 22025dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 22033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22045dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 22053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 22063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 22073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2208edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2209c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 2210d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 22117310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 2212d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 2213f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 2214c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 22157310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 2216f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 2217c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 2218f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 2219c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 2220c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 2221c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 2222c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 22237310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 22247310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 22257310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 22267310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 2227c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 22287310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2229c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 22307310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 22313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 22333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 22343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 22356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 22366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 22376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 22386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 22396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 2240f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 22413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 22428e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 224398f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 22448e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 2245f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 22463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 22478e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 22483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2249f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 225083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (!Tmp2.getValueType().isVector()) { 2251f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 2252f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 2253edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 2254edf2e8da256496c19390cfd46da80746373e9989Chris Lattner // Big endian systems want the hi reg first. 22550753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 2256edf2e8da256496c19390cfd46da80746373e9989Chris Lattner std::swap(Lo, Hi); 2257edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 225813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 225913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 226013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng else 226113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); 2262f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 2263f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 2264f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDNode *InVal = Tmp2.Val; 2265e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Tmp2.ResNo; 226683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = InVal->getValueType(InIx).getVectorNumElements(); 226783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = InVal->getValueType(InIx).getVectorElementType(); 2268f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 22697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2270ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 227183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT TVT = MVT::getVectorVT(EVT, NumElems); 22727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2273ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a return of the vector type. 22747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 22758e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2276f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 2277f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 22787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = ScalarizeVectorOp(Tmp2); 22797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 22808e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2281b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 2282b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 2283b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 2284b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 2285f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 2286f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 2287f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 2288f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 2289b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 2290b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 2291f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 2292f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 2293fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 2294f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 2295f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 2296f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 2297edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 22983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 22998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 23008e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2301c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 23028b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 23033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 23043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 23053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 2306c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 23073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 23083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 2309f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> NewValues; 23103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 23118e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 23123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 23133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 23144e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 23158e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 23163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 23173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 23183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 231983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(!Node->getOperand(i).getValueType().isExtended() && 2320b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 23213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 23223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 23238e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 232413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) { 232513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Hi); 232613acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 232713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng } 2328edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 23293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 23303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 23318b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 23323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2333c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2334c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 2335f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 2336c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 2337f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 2338f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 23393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 23403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 23413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 234217c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 23436862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 23446862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 23456862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 23466862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 23476862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 23486862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 23496862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 23506862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 23516862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 235217c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 23533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2354f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 23558b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 23568b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 23578b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 2358d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = ST->getSrcValueOffset(); 2359d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = ST->getAlignment(); 2360d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = ST->isVolatile(); 23618b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 23628b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 2363d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 2364d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 2365d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: move this to the DAG Combiner! Note that we can't regress due 2366d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // to phase ordering between legalized code and the dag combiner. This 2367d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // probably means that we need to integrate dag combiner and legalizer 2368d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // together. 23699e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // We generally can't do this one for long doubles. 23702b4c279a8e203fa8b13adf7ba3a5d4c8bef70df3Chris Lattner if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(ST->getValue())) { 23713cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (CFP->getValueType(0) == MVT::f32 && 23723cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner getTypeAction(MVT::i32) == Legal) { 23736cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman Tmp3 = DAG.getConstant(CFP->getValueAPF(). 23746cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman convertToAPInt().zextOrTrunc(32), 23753f6eb7419de437436265831fce92f62498556e08Dale Johannesen MVT::i32); 23769e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 23779e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen SVOffset, isVolatile, Alignment); 23789e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen break; 23799e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen } else if (CFP->getValueType(0) == MVT::f64) { 23803cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // If this target supports 64-bit registers, do a single 64-bit store. 23813cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (getTypeAction(MVT::i64) == Legal) { 23823cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp3 = DAG.getConstant(CFP->getValueAPF().convertToAPInt(). 23836cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman zextOrTrunc(64), MVT::i64); 23843cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 23853cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 23863cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 2387d4b9c17fb705c2f58ceef4f37d789ddb56783584Duncan Sands } else if (getTypeAction(MVT::i32) == Legal && !ST->isVolatile()) { 23883cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // Otherwise, if the target supports 32-bit registers, use 2 32-bit 23893cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // stores. If the target supports neither 32- nor 64-bits, this 23903cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // xform is certainly not worth it. 23916cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman const APInt &IntVal =CFP->getValueAPF().convertToAPInt(); 23926cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman SDOperand Lo = DAG.getConstant(APInt(IntVal).trunc(32), MVT::i32); 23936cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman SDOperand Hi = DAG.getConstant(IntVal.lshr(32).trunc(32), MVT::i32); 23940753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) std::swap(Lo, Hi); 23953cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 23963cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 23973cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 23983cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 23990bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(4)); 24003cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset+4, 2401dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands isVolatile, MinAlign(Alignment, 4U)); 24023cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 24033cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 24043cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 24053cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner } 2406d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2407d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2408d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner 2409b625f2f8960de32bc973092aaee8ac62863006feDan Gohman switch (getTypeAction(ST->getMemoryVT())) { 24108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Legal: { 24118b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 24122efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 24138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 24148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 241583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Tmp3.getValueType(); 24168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 24178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 2418f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 2419f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 2420f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 2421f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 2422f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 242383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands getABITypeAlignment(ST->getMemoryVT().getTypeForMVT()); 2424f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 2425f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 2426f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 2427f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2428f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 24298b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 24308b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 24318b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 24328b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24338b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 243483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(VT.isVector() && "Unknown legal promote case!"); 24358b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 24368b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 24378b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, 2438d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman ST->getSrcValue(), SVOffset, isVolatile, 2439d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 24408b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24418b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 24422efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 2443f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 24448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Promote: 24458b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncate the value and store the result. 24468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PromoteOp(ST->getValue()); 24478b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2448b625f2f8960de32bc973092aaee8ac62863006feDan Gohman SVOffset, ST->getMemoryVT(), 2449d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 24508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 245103c8546ec57523970874917854a2fb77b1ff598eChris Lattner 24528b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Expand: 24538b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned IncrementSize = 0; 24548b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Lo, Hi; 2455c7029805ef35ce9805931067b841e6af11db382eChris Lattner 24568b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // If this is a vector type, then we have to calculate the increment as 24578b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // the product of the element size in bytes, and the number of elements 24588b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // in the high half of the vector. 245983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ST->getValue().getValueType().isVector()) { 24608b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDNode *InVal = ST->getValue().Val; 2461e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = ST->getValue().ResNo; 246283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT InVT = InVal->getValueType(InIx); 246383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = InVT.getVectorNumElements(); 246483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = InVT.getVectorElementType(); 24658b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 24667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2467ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 246883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT TVT = MVT::getVectorVT(EVT, NumElems); 24697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2470ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a normal store of the vector type. 247121be3849aef47e6d8c26f31b11def57d59167863Dan Gohman Tmp3 = LegalizeOp(ST->getValue()); 24728b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2473d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24748b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 24758b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (NumElems == 1) { 24778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the scalar type. 247821be3849aef47e6d8c26f31b11def57d59167863Dan Gohman Tmp3 = ScalarizeVectorOp(ST->getValue()); 24798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2480d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The scalarized value type may not be legal, e.g. it might require 24828b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // promotion or expansion. Relegalize the scalar store. 24838b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 24848b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24858b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 248621be3849aef47e6d8c26f31b11def57d59167863Dan Gohman SplitVectorOp(ST->getValue(), Lo, Hi); 248783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands IncrementSize = Lo.Val->getValueType(0).getVectorNumElements() * 248883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands EVT.getSizeInBits()/8; 24898b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 2490c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 249121be3849aef47e6d8c26f31b11def57d59167863Dan Gohman ExpandOp(ST->getValue(), Lo, Hi); 249283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands IncrementSize = Hi.Val ? Hi.getValueType().getSizeInBits()/8 : 0; 24938b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 24940753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 24958b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng std::swap(Lo, Hi); 2496c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 2497c7029805ef35ce9805931067b841e6af11db382eChris Lattner 24988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 2499d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 25007b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 25017b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (Hi.Val == NULL) { 25027b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // Must be int <-> float one-to-one expansion. 25037b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng Result = Lo; 25047b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 25057b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 25067b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 25078b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 25080bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 25098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(Tmp2.getValueType()) && 25108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Pointers must be legal!"); 2511d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset += IncrementSize; 2512dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 25138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 2514d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 25158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 25168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 25178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 25188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 2519ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner switch (getTypeAction(ST->getValue().getValueType())) { 2520ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Legal: 2521ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner Tmp3 = LegalizeOp(ST->getValue()); 2522ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner break; 2523ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Promote: 2524ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // We can promote the value, the truncstore will still take care of it. 2525ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner Tmp3 = PromoteOp(ST->getValue()); 2526ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner break; 2527ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Expand: 2528ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // Just store the low part. This may become a non-trunc store, so make 2529ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // sure to use getTruncStore, not UpdateNodeOperands below. 2530ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner ExpandOp(ST->getValue(), Tmp3, Tmp4); 2531ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner return DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2532ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner SVOffset, MVT::i8, isVolatile, Alignment); 2533ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner } 25347e857201f387d004571e6058e2ea709163500f38Duncan Sands 253583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT StVT = ST->getMemoryVT(); 253683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned StWidth = StVT.getSizeInBits(); 25377e857201f387d004571e6058e2ea709163500f38Duncan Sands 253883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (StWidth != StVT.getStoreSizeInBits()) { 25397e857201f387d004571e6058e2ea709163500f38Duncan Sands // Promote to a byte-sized store with upper bits zero if not 25407e857201f387d004571e6058e2ea709163500f38Duncan Sands // storing an integral number of bytes. For example, promote 25417e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i1 X -> TRUNCSTORE:i8 (and X, 1) 254283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = MVT::getIntegerVT(StVT.getStoreSizeInBits()); 25437e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp3 = DAG.getZeroExtendInReg(Tmp3, StVT); 25448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 25457e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset, NVT, isVolatile, Alignment); 25467e857201f387d004571e6058e2ea709163500f38Duncan Sands } else if (StWidth & (StWidth - 1)) { 25477e857201f387d004571e6058e2ea709163500f38Duncan Sands // If not storing a power-of-2 number of bits, expand as two stores. 254883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(StVT.isExtended() && !StVT.isVector() && 25497e857201f387d004571e6058e2ea709163500f38Duncan Sands "Unsupported truncstore!"); 25507e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned RoundWidth = 1 << Log2_32(StWidth); 25517e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(RoundWidth < StWidth); 25527e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned ExtraWidth = StWidth - RoundWidth; 25537e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(ExtraWidth < RoundWidth); 25547e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 25557e857201f387d004571e6058e2ea709163500f38Duncan Sands "Store size not an integral number of bytes!"); 255683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT RoundVT = MVT::getIntegerVT(RoundWidth); 255783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ExtraVT = MVT::getIntegerVT(ExtraWidth); 25587e857201f387d004571e6058e2ea709163500f38Duncan Sands SDOperand Lo, Hi; 25597e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned IncrementSize; 25607e857201f387d004571e6058e2ea709163500f38Duncan Sands 25617e857201f387d004571e6058e2ea709163500f38Duncan Sands if (TLI.isLittleEndian()) { 25627e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 X, TRUNCSTORE@+2:i8 (srl X, 16) 25637e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the bottom RoundWidth bits. 25647e857201f387d004571e6058e2ea709163500f38Duncan Sands Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 25657e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset, RoundVT, 25667e857201f387d004571e6058e2ea709163500f38Duncan Sands isVolatile, Alignment); 25677e857201f387d004571e6058e2ea709163500f38Duncan Sands 25687e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 25697e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 25707e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 25717e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 25727e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, 25737e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 25747e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 25757e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 25767e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 25777e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 25787e857201f387d004571e6058e2ea709163500f38Duncan Sands // Big endian - avoid unaligned stores. 25797e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 (srl X, 8), TRUNCSTORE@+2:i8 X 25807e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the top RoundWidth bits. 25817e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, 25827e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 25837e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset, 25847e857201f387d004571e6058e2ea709163500f38Duncan Sands RoundVT, isVolatile, Alignment); 25857e857201f387d004571e6058e2ea709163500f38Duncan Sands 25867e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 25877e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 25887e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 25897e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 25907e857201f387d004571e6058e2ea709163500f38Duncan Sands Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 25917e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 25927e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 25937e857201f387d004571e6058e2ea709163500f38Duncan Sands } 2594c7029805ef35ce9805931067b841e6af11db382eChris Lattner 25957e857201f387d004571e6058e2ea709163500f38Duncan Sands // The order of the stores doesn't matter. 25967e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 25977e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 25987e857201f387d004571e6058e2ea709163500f38Duncan Sands if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 25997e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 != ST->getBasePtr()) 26007e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 26017e857201f387d004571e6058e2ea709163500f38Duncan Sands ST->getOffset()); 26027e857201f387d004571e6058e2ea709163500f38Duncan Sands 26037e857201f387d004571e6058e2ea709163500f38Duncan Sands switch (TLI.getTruncStoreAction(ST->getValue().getValueType(), StVT)) { 26047e857201f387d004571e6058e2ea709163500f38Duncan Sands default: assert(0 && "This action is not supported yet!"); 26057e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Legal: 26067e857201f387d004571e6058e2ea709163500f38Duncan Sands // If this is an unaligned store and the target doesn't support it, 26077e857201f387d004571e6058e2ea709163500f38Duncan Sands // expand it. 26087e857201f387d004571e6058e2ea709163500f38Duncan Sands if (!TLI.allowsUnalignedMemoryAccesses()) { 26097e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned ABIAlignment = TLI.getTargetData()-> 261083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands getABITypeAlignment(ST->getMemoryVT().getTypeForMVT()); 26117e857201f387d004571e6058e2ea709163500f38Duncan Sands if (ST->getAlignment() < ABIAlignment) 26127e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 26137e857201f387d004571e6058e2ea709163500f38Duncan Sands TLI); 26147e857201f387d004571e6058e2ea709163500f38Duncan Sands } 26157e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 26167e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Custom: 26177e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = TLI.LowerOperation(Result, DAG); 26187e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 26197e857201f387d004571e6058e2ea709163500f38Duncan Sands case Expand: 26207e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i16 i32 -> STORE i16 26217e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(isTypeLegal(StVT) && "Do not know how to expand this store!"); 26227e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp3 = DAG.getNode(ISD::TRUNCATE, StVT, Tmp3); 26237e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), SVOffset, 26247e857201f387d004571e6058e2ea709163500f38Duncan Sands isVolatile, Alignment); 26257e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 2626f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 26278b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 26283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 26293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2630f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 263195762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 263295762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2633c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 263495762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 2635140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 2636140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2637c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2638c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 2639c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 2640456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2641140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 2642140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2643456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2644456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2645c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 2646c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 2647c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 2648c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2649140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2650456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2651140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 26524f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 26534f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 26544f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 2655c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 26564f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 2657c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 26584f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 2659c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 2660c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 26614f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2662456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2663140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2664456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2665456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 2666456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 2667c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 2668c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2669c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 2670456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2671140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 2672140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2673140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2674c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2675140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 2676140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 2677140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2678456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2679456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2680456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2681456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2682140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2683140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 26844f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 26854f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 26864f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 26874f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 26884f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 26894f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 26904f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2691140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2692140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2693140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2694140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 269551b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 269651b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 2697c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2698f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, 2699f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Node->getValueType(0))) { 2700f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng default: assert(0 && "This action is not supported yet!"); 27016a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng case TargetLowering::Legal: 27026a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = Result.getValue(0); 27036a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = Result.getValue(1); 27046a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng break; 2705f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng case TargetLowering::Custom: 2706f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Result = TLI.LowerOperation(Result, DAG); 27076a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = LegalizeOp(Result.getValue(0)); 27086a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); 2709f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng break; 2710f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng } 271149c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 271249c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 271349c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 27146a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 27156a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2716c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 2717f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 27182ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 271947e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 272047e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 272147e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 272247e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 272347e9223e06390897c3834f8c527001df392570ffChris Lattner break; 27242e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman case Promote: { 272547e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 2726b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner // Make sure the condition is either zero or one. 27272e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned BitWidth = Tmp1.getValueSizeInBits(); 2728ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp1, 27292e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(BitWidth, BitWidth-1))) 2730b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 273147e9223e06390897c3834f8c527001df392570ffChris Lattner break; 273247e9223e06390897c3834f8c527001df392570ffChris Lattner } 27332e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman } 27343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 27352ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 273655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 2737c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2738456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2739b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 274055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 2741456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2742456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 2743456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2744456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2745456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2746456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 27479373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 27489373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 27499373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 27509373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 27519373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 27529373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 27539373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 27549373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 27559373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 27569373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 275755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 275855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 275983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = 276055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 276155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 276283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (Tmp2.getValueType().isVector()) { 276341f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 276441f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 276583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands } else if (Tmp2.getValueType().isInteger()) { 2766456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 2767456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 276855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 2769456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 2770456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 277155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 277255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 277355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 277455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 277555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 277655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 27770bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TruncOp != ISD::FP_ROUND) 27780bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 27790bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner else 27800bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result, 27810bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(0)); 278255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 278355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 278455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 27853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2786750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 2787750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 2788750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 27899373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 27909373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 2791750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 27929373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2793750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 2794750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2795750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 2796750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 2797750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 2798750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2799750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 2800750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 2801750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2802750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 2803750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2804750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 2805750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 2806750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 2807750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 2808750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 2809750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2810750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 28119373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 28129373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 28139373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2814750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 28153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 2816750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 2817750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 2818750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 2819750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 2820750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2821750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 2822750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 2823750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 2824750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2825750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 28263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 28273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2828b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 282973e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 2830456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 2831456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2832456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2833456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 2834456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 28352b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2836456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 28372b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp4 = TLI.LowerOperation(Result, DAG); 28382b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (Tmp4.Val) Result = Tmp4; 2839456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2840b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2841ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 2842ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 2843ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 2844ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 284583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewInTy = Node->getOperand(0).getValueType(); 284683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OldVT = NewInTy; OldVT = OldVT; 2847ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2848ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 2849ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 285083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NewInTy = (MVT::SimpleValueType)(NewInTy.getSimpleVT()+1); 2851ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 285283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewInTy.isInteger() == OldVT.isInteger() && 2853ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 285483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewInTy.isFloatingPoint() == OldVT.isFloatingPoint() && 2855ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 2856ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2857ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 28581ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 2859ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 2860ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 286183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (NewInTy.isInteger()) 2862ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 2863ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 2864ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 2865ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 2866ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2867c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 2868c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 28692b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2870433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 28715e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 2872ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2873b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 2874b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 2875b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 287683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 2877b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 2878b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 28792b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp3); 2880b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2881b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 28823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2883b43e9c196542acc80c9e4643809661065710848fNate Begeman case ISD::VSETCC: { 2884b43e9c196542acc80c9e4643809661065710848fNate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2885b43e9c196542acc80c9e4643809661065710848fNate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 2886b43e9c196542acc80c9e4643809661065710848fNate Begeman SDOperand CC = Node->getOperand(2); 2887b43e9c196542acc80c9e4643809661065710848fNate Begeman 2888b43e9c196542acc80c9e4643809661065710848fNate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, CC); 2889b43e9c196542acc80c9e4643809661065710848fNate Begeman 2890b43e9c196542acc80c9e4643809661065710848fNate Begeman // Everything is legal, see if we should expand this op or something. 2891b43e9c196542acc80c9e4643809661065710848fNate Begeman switch (TLI.getOperationAction(ISD::VSETCC, Tmp1.getValueType())) { 2892b43e9c196542acc80c9e4643809661065710848fNate Begeman default: assert(0 && "This action is not supported yet!"); 2893b43e9c196542acc80c9e4643809661065710848fNate Begeman case TargetLowering::Legal: break; 2894b43e9c196542acc80c9e4643809661065710848fNate Begeman case TargetLowering::Custom: 2895b43e9c196542acc80c9e4643809661065710848fNate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2896b43e9c196542acc80c9e4643809661065710848fNate Begeman if (Tmp1.Val) Result = Tmp1; 2897b43e9c196542acc80c9e4643809661065710848fNate Begeman break; 2898b43e9c196542acc80c9e4643809661065710848fNate Begeman } 2899b43e9c196542acc80c9e4643809661065710848fNate Begeman break; 2900b43e9c196542acc80c9e4643809661065710848fNate Begeman } 290152d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 29025b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 29035b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 29045b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2905f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 290684f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 290784f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 290884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 290984f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 291084f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2911c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2912f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 29132c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 291405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 291505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 291605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2917456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2918456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2919456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2920456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 2921456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 292205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2923456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 292405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 292505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 292612f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 292705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2928269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 292905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 293005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 293105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 293205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 293305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 29342c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 29352c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 29362c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 29372c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 29382c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 293984f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 29402c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 29412c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 29423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 29433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 29443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2945c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2946c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 29473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 29483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 29493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 29503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 29513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 295203c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 295303c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 295403c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 295501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 295601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 295701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 295801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 2959826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 29603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2961f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 2962f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 2963f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 2964f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2965f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2966f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 2967f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2968f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2969f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 2970c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2971c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2972456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2973e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2974bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 2975456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2976456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2977456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2978456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 297957030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 2980bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 298183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 2982525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2983525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if multiply or divide can be lowered using two-result operations. 2984525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 2985525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MUL) { 2986525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We just need the low half of the multiply; try both the signed 2987525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // and unsigned forms. If the target supports both SMUL_LOHI and 2988525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // UMUL_LOHI, form a preference by checking which forms of plain 2989525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // MULH it supports. 2990525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, VT); 2991525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, VT); 2992525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, VT); 2993525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, VT); 2994525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned OpToUse = 0; 2995525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI && !HasMULHS) { 2996525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 2997525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI && !HasMULHU) { 2998525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 2999525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasSMUL_LOHI) { 3000525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 3001525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI) { 3002525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 3003525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3004525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (OpToUse) { 3005525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(OpToUse, VTs, Tmp1, Tmp2).Val, 0); 3006525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3007525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3008525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3009525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHS && 3010525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SMUL_LOHI, VT)) { 3011525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 3012525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3013525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3014525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHU && 3015525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UMUL_LOHI, VT)) { 3016525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 3017525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3018525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3019525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SDIV && 3020525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 3021525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 0); 3022525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3023525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3024525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UDIV && 3025525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 3026525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 0); 3027525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3028525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3029525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3030826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Check to see if we have a libcall for this operator. 3031826695281344e3a4c4d44d73dd155107aafd689bDan Gohman RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 3032826695281344e3a4c4d44d73dd155107aafd689bDan Gohman bool isSigned = false; 3033826695281344e3a4c4d44d73dd155107aafd689bDan Gohman switch (Node->getOpcode()) { 3034826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::UDIV: 3035826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::SDIV: 3036826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (VT == MVT::i32) { 3037826695281344e3a4c4d44d73dd155107aafd689bDan Gohman LC = Node->getOpcode() == ISD::UDIV 303856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UDIV_I32 : RTLIB::SDIV_I32; 3039826695281344e3a4c4d44d73dd155107aafd689bDan Gohman isSigned = Node->getOpcode() == ISD::SDIV; 3040826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3041826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3042826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 3043007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::POW_F32, RTLIB::POW_F64, RTLIB::POW_F80, 3044007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POW_PPCF128); 3045826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3046826695281344e3a4c4d44d73dd155107aafd689bDan Gohman default: break; 3047826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3048826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (LC != RTLIB::UNKNOWN_LIBCALL) { 3049826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand Dummy; 3050460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, isSigned, Dummy); 305152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 305252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 305352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 305483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(Node->getValueType(0).isVector() && 3055bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 3056bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 3057826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3058bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 3059bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 3060cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 3061cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 3062cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 3063cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 3064cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 3065cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 306683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Node->getValueType(0); 306783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 306883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(OVT.isVector() && "Cannot promote this BinOp!"); 3069cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 3070cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 3071cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 3072cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 3073cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 3074cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 3075cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 3076cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3077cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3078cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3079e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 30803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 3081a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3082e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SMUL_LOHI: 3083e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UMUL_LOHI: 3084e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SDIVREM: 3085e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UDIVREM: 3086e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // These nodes will only be produced by target-specific lowering, so 3087e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // they shouldn't be here if they aren't legal. 3088a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 3089e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman "This must be legal!"); 3090525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3091525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3092525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3093525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3094e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman break; 3095e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman 3096a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 3097a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3098a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 3099a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 3100a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 3101a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 3102a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3103a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 3104a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 3105a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3106a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 3107a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3108a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3109a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3110a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3111a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 3112a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 3113a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3114a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 31158f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 3116a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 3117912095becac923ff614d7b07728eb345ada67765Evan Cheng case TargetLowering::Expand: { 3118636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // If this target supports fabs/fneg natively and select is cheap, 3119636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // do this efficiently. 3120636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng if (!TLI.isSelectExpensive() && 3121636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TLI.getOperationAction(ISD::FABS, Tmp1.getValueType()) == 3122636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal && 3123912095becac923ff614d7b07728eb345ada67765Evan Cheng TLI.getOperationAction(ISD::FNEG, Tmp1.getValueType()) == 3124636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal) { 31258f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 312683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT IVT = 31278f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 31288f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 31295b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel SignBit = DAG.getSetCC(TLI.getSetCCResultType(SignBit), 31308f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 31318f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 31328f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 31338f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 31348f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 31358f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 31368f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 31378f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 31388f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 31398f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 31408f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 31418f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 31428f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 31438f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 314483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = 3145912095becac923ff614d7b07728eb345ada67765Evan Cheng Node->getValueType(0) == MVT::f32 ? MVT::i32 : MVT::i64; 3146912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 3147912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), Result); 3148912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = LegalizeOp(Result); 3149a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3150a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 3151912095becac923ff614d7b07728eb345ada67765Evan Cheng } 3152a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3153a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3154551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 3155551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 3156551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3157551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3158551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3159551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 3160551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 3161551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 3162551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 3163551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 3164edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 3165551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 3166551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 3167551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3168551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3169551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 3170551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 3171551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 3172551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 3173551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 3174551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 3175551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 3176551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 3177419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 317883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PairTy = Node->getValueType(0); 3179419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 3180419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 3181419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 3182419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 3183456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3184456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3185456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 3186419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 3187419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 3188419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 3189419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3190419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 3191419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 3192419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 3193419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 319483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(PairTy.getSizeInBits()/2, 3195419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 3196456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 3197419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3198419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 3199419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3200419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 3201419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 3202c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 3203c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 320401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3205c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3206c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3207456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3208c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3209456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 3210456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3211456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3212456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 321357030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 3214c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3215456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3216456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3217456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3218456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 321957030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 3220525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman case TargetLowering::Expand: { 32216b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 322247857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = DivOpc == ISD::SDIV; 322383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3224525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3225525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if remainder can be lowered using two-result operations. 3226525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 3227525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SREM && 3228525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 3229525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 1); 3230525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3231525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3232525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UREM && 3233525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 3234525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 1); 3235525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3236525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3237525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 323883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isInteger()) { 3239525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (TLI.getOperationAction(DivOpc, VT) == 324052cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 324152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 32426b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 324352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 324452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 324583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands } else if (VT.isVector()) { 324680176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 324752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 3248525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman assert(VT == MVT::i32 && 324952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 325056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UREM 325156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UREM_I32 : RTLIB::SREM_I32; 325252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 3253460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, isSigned, Dummy); 325452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 32550d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman } else { 325683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(VT.isFloatingPoint() && 32570d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman "remainder op must have integer or floating-point type"); 325883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isVector()) { 325980176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 326080176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } else { 326180176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman // Floating point mod -> fmod libcall. 3262007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::REM_F32, RTLIB::REM_F64, 3263007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::REM_F80, RTLIB::REM_PPCF128); 326480176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman SDOperand Dummy; 3265460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); 326680176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } 3267c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 3268c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 3269c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 3270525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3271c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 3272acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 3273acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3274acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3275acc398c195a697795bff3245943d104eb19192b9Nate Begeman 327683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3277acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 3278acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3279456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3280456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3281456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3282acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3283c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3284c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 3285456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 3286456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3287456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3288456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 3289456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 3290456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 3291456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 3292456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3293456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3294acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3295acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 329669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); 329769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, V, 0); 3298acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 3299acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 330083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(VT.getSizeInBits()/8, 3301acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 3302acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 330369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, V, 0); 3304acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 3305466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 3306456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 3307acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 3308acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3309acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3310acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3311acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 3312acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 3313acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 3314456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 3315456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 3316acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3317acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3318acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 3319acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3320acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 3321acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 3322acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3323acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 3324acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3325456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3326456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3327456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3328acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3329c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 3330c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 3331456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3332456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3333456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3334456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3335acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3336acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3337acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 3338acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 333969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *VD = cast<SrcValueSDNode>(Node->getOperand(3))->getValue(); 334069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *VS = cast<SrcValueSDNode>(Node->getOperand(4))->getValue(); 3341499c1bd358917ad64ed3dcc32492dd38e1a47706Dan Gohman Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, VS, 0); 3342499c1bd358917ad64ed3dcc32492dd38e1a47706Dan Gohman Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, VD, 0); 3343acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3344acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3345acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3346acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3347acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 3348acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3349acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3350acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3351acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 3352acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3353456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3354456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3355456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3356acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3357c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3358456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3359456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 3360456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3361456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3362acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3363acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3364acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 3365acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3366acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3367acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3368acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3369acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 3370acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3371acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3372acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3373c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3374c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 3375acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 3376acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3377456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 3378456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3379456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3380456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3381acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3382acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3383acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3384acc398c195a697795bff3245943d104eb19192b9Nate Begeman 338535ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 338635ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 338735ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 338835ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3389c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3390c9dc11457809b6641de853af2261721a97ad1f26Scott Michel switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3391c9dc11457809b6641de853af2261721a97ad1f26Scott Michel default: 3392c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "ROTL/ROTR legalize operation not supported"); 3393c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3394c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Legal: 3395c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3396c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Custom: 3397c9dc11457809b6641de853af2261721a97ad1f26Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3398c9dc11457809b6641de853af2261721a97ad1f26Scott Michel if (Tmp1.Val) Result = Tmp1; 3399c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3400c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Promote: 3401c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to promote ROTL/ROTR"); 3402c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3403c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Expand: 3404c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to expand ROTL/ROTR"); 3405c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3406c9dc11457809b6641de853af2261721a97ad1f26Scott Michel } 340735ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 340835ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 3409d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3410d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3411d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3412456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3413456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 3414456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3415c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3416456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3417456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 341883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Tmp1.getValueType(); 341983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 342083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned DiffBits = NVT.getSizeInBits() - OVT.getSizeInBits(); 3421456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3422456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3423456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3424456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3425456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 3426456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3427456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3428456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 3429456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 3430456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3431d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 3432d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3433d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 3434691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3435691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3436691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3437691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3438691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3439910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel case TargetLowering::Custom: 3440691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 3441c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3442910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 3443335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel TargetLowering::Custom) { 3444335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3445335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel if (Tmp1.Val) { 3446335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Result = Tmp1; 3447335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel } 3448910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel } 3449691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3450691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 345183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Tmp1.getValueType(); 345283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3453edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 3454edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 3455691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3456691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 3457691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 3458456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3459691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3460691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 3461691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3462691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3463691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 34645b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, 346583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT), 34667cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 346700b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 346883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(OVT.getSizeInBits(), NVT), Tmp1); 3469691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3470691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3471456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 347200b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 347383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - 347483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands OVT.getSizeInBits(), NVT)); 3475691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3476691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3477691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3478691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3479691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 3480456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 3481691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3482691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3483691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 348400b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 34852c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 34862c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 34872c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 3488da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3489da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3490da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 34912c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 34922c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3493456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3494456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 349559ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 349659ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 34972c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 3498c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 349959ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 350059ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 350159ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 350259ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 35032c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35042c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 3505456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3506456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 3507456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 35082c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 35092c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 3510456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 3511f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3512f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 35134af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 351483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 35154af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 35165b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, Tmp2, 35175922f561c65968ef1865cc8434d191041e450602Nate Begeman ISD::SETUGT); 35184af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 35194af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 3520f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3521f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 3522f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 3523f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 3524f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 352583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3526826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3527826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 352883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isVector()) { 3529826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3530826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3531826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3532826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 353356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 3534f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 353556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 3536007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, 3537007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); 353856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 353956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 3540007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, 3541007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SIN_F80, RTLIB::SIN_PPCF128); 354256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 354356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 3544007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, 3545007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::COS_F80, RTLIB::COS_PPCF128); 354656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 3547f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 3548f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 35492ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 3550460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); 3551f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3552f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 35532c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 35542c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35552c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 35562c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35576ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 355883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 3559826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3560826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 356183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isVector()) { 3562826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3563826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3564826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3565826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3566826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // We always lower FPOWI into a libcall. No target support for it yet. 3567007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::POWI_F32, RTLIB::POWI_F64, 3568007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_F80, RTLIB::POWI_PPCF128); 35696ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner SDOperand Dummy; 3570460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); 35716ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 35726ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 357335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 357467993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 35751401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 35761401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 357783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands } else if (Op.getOperand(0).getValueType().isVector()) { 35787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // The input has to be a vector type, we have to either scalarize it, pack 35797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // it, or convert it based on whether the input vector type is legal. 35807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDNode *InVal = Node->getOperand(0).Val; 3581e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Node->getOperand(0).ResNo; 358283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = InVal->getValueType(InIx).getVectorNumElements(); 358383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = InVal->getValueType(InIx).getVectorElementType(); 35847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 35857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 35867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // type. If so, convert to the vector type. 358783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT TVT = MVT::getVectorVT(EVT, NumElems); 35887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 358907a96765daedf180a7102d39fe56c499878312b7Dan Gohman // Turn this into a bit convert of the vector input. 35907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 35917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LegalizeOp(Node->getOperand(0))); 35927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 35937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (NumElems == 1) { 35947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Turn this into a bit convert of the scalar input. 35957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 35967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 35977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 35987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 35997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // FIXME: UNIMP! Store then reload 36007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Cast from unsupported vector type not implemented yet!"); 36017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 360267993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 360335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 360435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 360535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 360635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 36071401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 36081401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 360935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 361035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 361135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3612c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 361335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 361435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 361535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 361635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 3617d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 36182c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 3619fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 3620fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 3621fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 3622fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3623fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3624d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 3625fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 3626fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 3627456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3628456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3629456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3630456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3631456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3632c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3633456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3634456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3635456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3636456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3637456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3638fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 36396269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 36406269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 36416269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 3642456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3643fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 3644fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 3645fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 3646fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 3647fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 36485b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 3649fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3650fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3651fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 3652fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 3653fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3654fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3655c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3656fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 3657c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 3658c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 3659fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 3660c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 3661c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 3662fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3663c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3664c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 3665fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3666fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3667fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3668fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3669fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 3670fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3671fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3672fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3673c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3674fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3675fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3676fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 3677fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 3678fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 3679fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 3680fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 3681fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3682fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3683fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 3684fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 3685fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3686fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3687fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3688d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3689fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 3690fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 3691fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3692fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3693f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3694f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 36951618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 36961618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 3697456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3698456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3699456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3700456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3701c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3702456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3703456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3704456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3705456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3706456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3707456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3708456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 3709456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 3710456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 37111618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 3712d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 3713d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 371483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getOperand(0).getValueType(); 371583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = Node->getValueType(0); 371673328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen const uint64_t zero[] = {0, 0}; 371783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands APFloat apf = APFloat(APInt(VT.getSizeInBits(), 2, zero)); 371883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands APInt x = APInt::getSignBit(NVT.getSizeInBits()); 3719c7773bf90ee4398ccdeb847db6330cf4507b832bDan Gohman (void)apf.convertFromAPInt(x, false, APFloat::rmNearestTiesToEven); 372073328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen Tmp2 = DAG.getConstantFP(apf, VT); 37215b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp3 = DAG.getSetCC(TLI.getSetCCResultType(Node->getOperand(0)), 3722d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 3723d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 3724d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 372501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 3726d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 3727d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 3728c7773bf90ee4398ccdeb847db6330cf4507b832bDan Gohman DAG.getConstant(x, NVT)); 3729456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 3730456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3731d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3732d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 3733d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 3734d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 37351618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 3736fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 37376af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case Expand: { 373883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 373983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT OVT = Node->getOperand(0).getValueType(); 3740fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // Convert ppcf128 to i32 37416eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (OVT == MVT::ppcf128 && VT == MVT::i32) { 37420bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (Node->getOpcode() == ISD::FP_TO_SINT) { 37430bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, MVT::ppcf128, 37440bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(0), DAG.getValueType(MVT::f64)); 37450bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f64, Result, 37460bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(1)); 37470bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_TO_SINT, VT, Result); 37480bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } else { 3749fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen const uint64_t TwoE31[] = {0x41e0000000000000LL, 0}; 3750fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen APFloat apf = APFloat(APInt(128, 2, TwoE31)); 3751fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Tmp2 = DAG.getConstantFP(apf, OVT); 3752fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // X>=2^31 ? (int)(X-2^31)+0x80000000 : (int)X 3753fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // FIXME: generated code sucks. 3754fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Result = DAG.getNode(ISD::SELECT_CC, VT, Node->getOperand(0), Tmp2, 3755fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::ADD, MVT::i32, 3756fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3757fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FSUB, OVT, 3758fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0), Tmp2)), 3759fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getConstant(0x80000000, MVT::i32)), 3760fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3761fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0)), 3762fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getCondCode(ISD::SETGE)); 3763fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen } 37646eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 37656eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 3766a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman // Convert f32 / f64 to i32 / i64 / i128. 376756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 37686af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng switch (Node->getOpcode()) { 376973328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen case ISD::FP_TO_SINT: { 3770a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (VT == MVT::i32) { 3771a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3772a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F32_I32; 3773a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3774a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F64_I32; 3775a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3776a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i32-to-fp conversion!"); 3777a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i64) { 3778a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3779a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F32_I64; 3780a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3781a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F64_I64; 3782a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f80) 3783a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F80_I64; 3784a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::ppcf128) 3785a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_PPCF128_I64; 3786a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3787a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i64-to-fp conversion!"); 3788a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i128) { 3789a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3790a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F32_I128; 3791a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3792a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F64_I128; 3793a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f80) 3794a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F80_I128; 3795a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::ppcf128) 3796a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_PPCF128_I128; 3797a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3798a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i128-to-fp conversion!"); 3799a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else { 3800a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpectd int-to-fp conversion!"); 380173328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 38026af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 380373328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 380473328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen case ISD::FP_TO_UINT: { 3805a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (VT == MVT::i32) { 3806a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3807a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F32_I32; 3808a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3809a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F64_I32; 3810a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f80) 3811a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F80_I32; 3812a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3813a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i32-to-fp conversion!"); 3814a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i64) { 3815a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3816a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F32_I64; 3817a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3818a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F64_I64; 3819a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f80) 3820a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F80_I64; 3821a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::ppcf128) 3822a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_PPCF128_I64; 3823a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3824a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i64-to-fp conversion!"); 3825a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i128) { 3826a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3827a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F32_I128; 3828a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3829a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F64_I128; 3830a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f80) 3831a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F80_I128; 3832a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::ppcf128) 3833a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_PPCF128_I128; 3834a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3835a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i128-to-fp conversion!"); 3836a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else { 3837a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpectd int-to-fp conversion!"); 383873328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 38396af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 384073328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 38416af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng default: assert(0 && "Unreachable!"); 38426af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 38436af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng SDOperand Dummy; 3844460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); 38456af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 38466af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 3847fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3848c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3849c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 3850c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 3851fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3852fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3853fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3854d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3855f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case ISD::FP_EXTEND: { 385683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT DstVT = Op.getValueType(); 385783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = Op.getOperand(0).getValueType(); 38580bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { 38590bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // The only other way we can lower this is to turn it into a STORE, 38600bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // LOAD pair, targetting a temporary location (a stack slot). 38610bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = EmitStackConvert(Node->getOperand(0), SrcVT, DstVT); 38620bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 3863f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3864f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3865f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 3866f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Legal: 3867f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3868f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3869f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3870f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Promote: 3871f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3872f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Tmp1); 3873f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3874f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3875f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 38760bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 38775411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen case ISD::FP_ROUND: { 387883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT DstVT = Op.getValueType(); 387983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = Op.getOperand(0).getValueType(); 38800bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { 38810bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (SrcVT == MVT::ppcf128) { 3882713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen SDOperand Lo; 3883713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen ExpandOp(Node->getOperand(0), Lo, Result); 38840bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Round it the rest of the way (e.g. to f32) if needed. 3885713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen if (DstVT!=MVT::f64) 3886713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen Result = DAG.getNode(ISD::FP_ROUND, DstVT, Result, Op.getOperand(1)); 38870bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 38885411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen } 38890bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // The only other way we can lower this is to turn it into a STORE, 38900bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // LOAD pair, targetting a temporary location (a stack slot). 38910bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = EmitStackConvert(Node->getOperand(0), DstVT, DstVT); 38920bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 3893849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen } 3894f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3895f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 3896f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Legal: 3897f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 38980bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 3899f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3900f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Promote: 3901f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 39020bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, Op.getValueType(), Tmp1, 39030bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(1)); 3904f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3905f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3906f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 39070bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 390813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 39093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 39103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 39113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3912456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 39133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 39143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 391582747a54849d22c3a0b7c3b56399da9b9e020ee0Scott Michel Result = DAG.UpdateNodeOperands(Result, Tmp1); 39160123b7dcfa9be97588926407163deb8d603487ceScott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 39170123b7dcfa9be97588926407163deb8d603487ceScott Michel TargetLowering::Custom) { 391882747a54849d22c3a0b7c3b56399da9b9e020ee0Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 391982747a54849d22c3a0b7c3b56399da9b9e020ee0Scott Michel if (Tmp1.Val) Result = Tmp1; 39200123b7dcfa9be97588926407163deb8d603487ceScott Michel } 39213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 392203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 392303c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 392413c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 3925c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3926c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 392713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 39281713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 39291713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 393013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 393123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 393223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 393303c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 393403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 39351713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 393613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 39371713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 393815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 393915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 39401713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 394103c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 39423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 39433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 39440f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 394523993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 39460f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 394783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 394845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 394945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 395045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 395155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 395255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 395355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 3954c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 395555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 395655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 395745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 395823993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 395945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 396045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 396183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned BitsDiff = Node->getValueType(0).getSizeInBits() - 396283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands ExtraVT.getSizeInBits(); 396327ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 396445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 396545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 396645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 396745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 396845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 39692d84c4c7b314242346dea1a7f48563333476a4d5Jim Laskey // The only way we can lower this is to turn it into a TRUNCSTORE, 397045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 397145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 397245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 397345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 397445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 3975a66bb39e9779ce17b7d16e311f4b73fddb2ede2fChris Lattner Result = EmitStackConvert(Node->getOperand(0), ExtraVT, 3976a66bb39e9779ce17b7d16e311f4b73fddb2ede2fChris Lattner Node->getValueType(0)); 397745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 397845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 397945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 398055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 398145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 39820f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 39833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 398436397f50343639ce9a25996f2d790c656791ab92Duncan Sands case ISD::TRAMPOLINE: { 398536397f50343639ce9a25996f2d790c656791ab92Duncan Sands SDOperand Ops[6]; 398636397f50343639ce9a25996f2d790c656791ab92Duncan Sands for (unsigned i = 0; i != 6; ++i) 398736397f50343639ce9a25996f2d790c656791ab92Duncan Sands Ops[i] = LegalizeOp(Node->getOperand(i)); 398836397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = DAG.UpdateNodeOperands(Result, Ops, 6); 398936397f50343639ce9a25996f2d790c656791ab92Duncan Sands // The only option for this node is to custom lower it. 399036397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = TLI.LowerOperation(Result, DAG); 399136397f50343639ce9a25996f2d790c656791ab92Duncan Sands assert(Result.Val && "Should always custom lower!"); 3992f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands 3993f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // Since trampoline produces two values, make sure to remember that we 3994f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // legalized both of them. 3995f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Tmp1 = LegalizeOp(Result.getValue(1)); 3996f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Result = LegalizeOp(Result); 3997f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 0), Result); 3998f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 3999f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands return Op.ResNo ? Tmp1 : Result; 400036397f50343639ce9a25996f2d790c656791ab92Duncan Sands } 40019c78a399076f8356a53ee67dca9c78e594e34967Dan Gohman case ISD::FLT_ROUNDS_: { 400283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 4003917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 4004917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov default: assert(0 && "This action not supported for this op yet!"); 4005917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Custom: 4006917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 4007917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov if (Result.Val) break; 4008917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // Fall Thru 4009917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Legal: 4010917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // If this operation is not supported, lower it to constant 1 4011917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = DAG.getConstant(1, VT); 4012917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov break; 4013917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 40149ab9ee8209c313713a54db2d9451751d8cfb9e2aDan Gohman break; 4015917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 401641bab0beac2600701af99f63e23a6b65f71468acChris Lattner case ISD::TRAP: { 401783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 401866fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 401966fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov default: assert(0 && "This action not supported for this op yet!"); 402041bab0beac2600701af99f63e23a6b65f71468acChris Lattner case TargetLowering::Legal: 402141bab0beac2600701af99f63e23a6b65f71468acChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 402241bab0beac2600701af99f63e23a6b65f71468acChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 402341bab0beac2600701af99f63e23a6b65f71468acChris Lattner break; 402466fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov case TargetLowering::Custom: 402566fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 402666fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov if (Result.Val) break; 402766fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov // Fall Thru 402841bab0beac2600701af99f63e23a6b65f71468acChris Lattner case TargetLowering::Expand: 402966fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov // If this operation is not supported, lower it to 'abort()' call 403041bab0beac2600701af99f63e23a6b65f71468acChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 403166fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov TargetLowering::ArgListTy Args; 403266fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov std::pair<SDOperand,SDOperand> CallResult = 403300fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands TLI.LowerCallTo(Tmp1, Type::VoidTy, 403400fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands false, false, false, CallingConv::C, false, 4035034f12ea0864a9cca0a74715d6fb06a8bf1dc775Chris Lattner DAG.getExternalSymbol("abort", TLI.getPointerTy()), 4036034f12ea0864a9cca0a74715d6fb06a8bf1dc775Chris Lattner Args, DAG); 403766fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov Result = CallResult.second; 403866fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov break; 403966fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov } 404041bab0beac2600701af99f63e23a6b65f71468acChris Lattner break; 404166fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov } 404245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 4043456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 40444ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 40454ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 40464ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 4047456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 4048456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 4049456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 40503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 405145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 405245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 405345982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 40543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 40553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 40563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 40578b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 40588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 40598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 40608b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 406103c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 406283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 406383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 406403c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 406503c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 40668e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands assert(NVT.bitsGT(VT) && NVT.isInteger() == VT.isInteger() && 406703c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 406803c8546ec57523970874917854a2fb77b1ff598eChris Lattner 406903c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 407003c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 407103c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 407203c8546ec57523970874917854a2fb77b1ff598eChris Lattner 40739cac5259fe237120a0c347d6d14e549005148f1bRoman Levenstein DenseMap<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 40746fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 407545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 407603c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 4077d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 4078d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 407903c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 4080e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 408139833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 4082e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 408303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 408403c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 4085fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 4086fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 4087fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 408803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 4089ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 4090ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 4091ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 4092ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 409303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 409403c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 409503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 409603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 409703c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 409803c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 4099ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 410082fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 41015b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel assert(isTypeLegal(TLI.getSetCCResultType(Node->getOperand(0))) 41025922f561c65968ef1865cc8434d191041e450602Nate Begeman && "SetCC type is not legal??"); 41035b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Result = DAG.getNode(ISD::SETCC, 41045922f561c65968ef1865cc8434d191041e450602Nate Begeman TLI.getSetCCResultType(Node->getOperand(0)), 41055922f561c65968ef1865cc8434d191041e450602Nate Begeman Node->getOperand(0), Node->getOperand(1), 41065922f561c65968ef1865cc8434d191041e450602Nate Begeman Node->getOperand(2)); 410782fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 4108fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 410903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 411003c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 411103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 411203c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 41138e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands assert(Result.getValueType().bitsGE(NVT) && 411403c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 41158e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands if (Result.getValueType().bitsGT(NVT)) // Truncate to NVT instead of VT 411603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 411703c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 4118e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 4119e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 4120e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 4121e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 4122e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 412303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 412479e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 412579e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 4126e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 412703c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 412803c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 41298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 41308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 413113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 41328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 41348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 41358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 4136456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 41378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 41398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 41408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 41418b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 41428b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 4143595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 414415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 414513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 414623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 414723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 41488b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41498b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 41508b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 415135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 41521401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 41531401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 415435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 415535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 415635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 41578b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 41588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 41598b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 41608b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 41628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 41638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 41640bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (Node->getConstantOperandVal(1) == 0) { 41650bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Input is legal? Do an FP_ROUND_INREG. 41660bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 41670bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getValueType(VT)); 41680bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } else { 41690bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Just remove the truncate, it isn't affecting the value. 41700bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, NVT, Node->getOperand(0), 41710bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(1)); 41720bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 41738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41748b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 41758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 41778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 41788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 418077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 4181456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 41828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 41848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 41858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 41868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 41878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 418815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 418915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 41908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 419123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 419223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 419377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 419477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 41958b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 419777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 419877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 419977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 420077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 420115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 420215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 420377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 42048b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 42058b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 42075e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 42085e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 42095e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 42105e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 42115e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 42128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 42138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 42148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 42158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 42160b1b9dcf22745b533562134c2f0472098fe085fdEvan Cheng case Expand: 4217456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 42188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 42208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 42218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 42228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 4225d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 4226d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 4227d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 4228d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 4229d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 4230d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 4231c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 4232b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 4233b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 4234d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 4235d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 4236d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4237d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 42388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 42402c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 42412c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 42422c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42432c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 42442c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 42452c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 42462c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 42472c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 42482c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 42492c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 4250da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 4251da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 4252da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 4253da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 4254da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 4255da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4256456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 425715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 425815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 4259da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 4260da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 42618b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner case ISD::FPOWI: { 42628b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // Promote f32 powi to f64 powi. Note that this could insert a libcall 42638b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // directly as well, which may be better. 42648b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42658b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner assert(Tmp1.getValueType() == NVT); 42668b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FPOWI, NVT, Tmp1, Node->getOperand(1)); 42678b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner if (NoExcessFPPrecision) 42688b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 42698b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner DAG.getValueType(VT)); 42708b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner break; 42718b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner } 42728b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner 4273ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_LCS: { 4274ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp2 = PromoteOp(Node->getOperand(2)); 4275ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp3 = PromoteOp(Node->getOperand(3)); 4276ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Result = DAG.getAtomic(Node->getOpcode(), Node->getOperand(0), 4277ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Node->getOperand(1), Tmp2, Tmp3, 4278ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth cast<AtomicSDNode>(Node)->getVT()); 4279ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth // Remember that we legalized the chain. 4280ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 4281ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 4282ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 4283ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_LAS: 428463307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LSS: 428563307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_AND: 428663307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_OR: 428763307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_XOR: 428863307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_MIN: 428963307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_MAX: 429063307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_UMIN: 429163307c335aa08b0d6a75f81d64d79af7e90eb78bMon P Wang case ISD::ATOMIC_LOAD_UMAX: 4292ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_SWAP: { 4293ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp2 = PromoteOp(Node->getOperand(2)); 4294ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Result = DAG.getAtomic(Node->getOpcode(), Node->getOperand(0), 4295ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Node->getOperand(1), Tmp2, 4296ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth cast<AtomicSDNode>(Node)->getVT()); 4297ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth // Remember that we legalized the chain. 4298ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 4299ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 4300ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 4301ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth 430203c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 430303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 430403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 43050f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 43068b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 43070f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 43080f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 430901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 43100f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 43110f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 43120f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 43130f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 43140f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 431501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 431601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 431701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 431801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 431901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 432001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 432101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 432201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 432301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 432401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 432501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 432601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 43278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 43288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 432901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 433015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 433115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 43320f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 43330f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 43348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 43358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 43368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 43378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 43388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 433983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (NVT.isInteger()) { 434015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 434115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 434215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 434315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 43448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 43458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 43468b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 43478b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 434883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (NVT.isFloatingPoint() && NoExcessFPPrecision) 434915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 435015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 43518b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 435201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 435301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 4354a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 435501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 4356ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 43570bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Expand: assert(0 && "not implemented"); 43580bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Legal: Tmp1 = LegalizeOp(Node->getOperand(0)); break; 43590bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Promote: Tmp1 = PromoteOp(Node->getOperand(0)); break; 4360ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 4361ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 43620bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Expand: assert(0 && "not implemented"); 43630bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); break; 43640bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Promote: Tmp2 = PromoteOp(Node->getOperand(1)); break; 4365ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 436601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 436701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 436801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 4369a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 437001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 437101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 437201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 43738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 43748b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 43758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 43768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 43778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 43788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 437983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NVT.isInteger() && "Operators don't apply to FP!"); 438023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 438123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 43828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 43838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 43858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 43868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 4387456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 43888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 43908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 43918b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 439215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 439315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 4394456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 43958b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43968b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 43978b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 43988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 439923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4400456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 44018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 44020aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 44030aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 4404456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 4405456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 44060aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 44070aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 44080aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 44090aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 441069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); 441169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, V, 0); 44120aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 44130aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 441483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(VT.getSizeInBits()/8, 44150aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 44160aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 441769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, V, 0); 44180aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 4419466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 44200aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 44210aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 4422456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 44230aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 44240aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 4425466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 4426466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 442762f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 442862f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 442962f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 443062f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 443155b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 4432b625f2f8960de32bc973092aaee8ac62863006feDan Gohman LD->getMemoryVT(), 4433d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), 4434d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getAlignment()); 44354c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 4436456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 44374c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 4438466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 44398bf61e8c2a39bcf070c39848fea83eda57851ebbScott Michel case ISD::SELECT: { 444003c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 444103c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 44428bf61e8c2a39bcf070c39848fea83eda57851ebbScott Michel 444383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT2 = Tmp2.getValueType(); 44448bf61e8c2a39bcf070c39848fea83eda57851ebbScott Michel assert(VT2 == Tmp3.getValueType() 4445ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel && "PromoteOp SELECT: Operands 2 and 3 ValueTypes don't match"); 4446ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel // Ensure that the resulting node is at least the same size as the operands' 4447ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel // value types, because we cannot assume that TLI.getSetCCValueType() is 4448ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel // constant. 4449ba12f57ebea3a5b3d0711d194e4584937309bc8bScott Michel Result = DAG.getNode(ISD::SELECT, VT2, Node->getOperand(0), Tmp2, Tmp3); 445003c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 44518bf61e8c2a39bcf070c39848fea83eda57851ebbScott Michel } 44529373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 44539373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 44549373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 44559373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 4456456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 44579373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 4458d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 4459d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 4460d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 4461d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 4462d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 446383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - 446483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands VT.getSizeInBits(), 4465d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 4466d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 4467fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4468fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4469fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4470456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 4471456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 4472fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 4473fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4474456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 4475fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4476fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 4477fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4478fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4479456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 44805b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, 448183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT), 4482b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman ISD::SETEQ); 448300b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 448483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(VT.getSizeInBits(), NVT), Tmp1); 4485fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4486fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4487fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 448800b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 448983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - 449083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands VT.getSizeInBits(), NVT)); 4491fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4492fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 4493fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 44947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 44957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = PromoteOp(ExpandEXTRACT_SUBVECTOR(Op)); 44966595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 44974aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 44984aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 44994aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 450003c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 450103c8546ec57523970874917854a2fb77b1ff598eChris Lattner 450203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 4503456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4504456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 4505456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 4506456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4507456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 450803c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 450903c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 451003c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 45113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 45127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 45137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// a legal EXTRACT_VECTOR_ELT operation, scalar code, or memory traffic, 45147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// based on the vector type. The return type of this matches the element type 45157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// of the vector, which may not be legal for the target. 45167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDOperand Op) { 45171597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 45181597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 45191597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 45201597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Vec = Op.getOperand(0); 45217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Idx = Op.getOperand(1); 45221597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 452383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT TVT = Vec.getValueType(); 452483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = TVT.getVectorNumElements(); 45251597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 45267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, TVT)) { 45277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman default: assert(0 && "This action is not supported yet!"); 45287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Custom: { 45297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 45307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 45317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Tmp3 = TLI.LowerOperation(Op, DAG); 45327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Tmp3.Val) 45337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Tmp3; 45347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 45357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 45367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Legal: 45377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (isTypeLegal(TVT)) { 45387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 45397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 4540844228a631f47bb39f71f617063831fb83c3843bChristopher Lamb return Op; 45417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 45427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 45437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Expand: 45447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 45457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 45467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NumElems == 1) { 45481597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 45497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ScalarizeVectorOp(Vec); 45507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (!TLI.isTypeLegal(TVT) && isa<ConstantSDNode>(Idx)) { 455155030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman unsigned NumLoElts = 1 << Log2_32(NumElems-1); 45527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 45531597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Lo, Hi; 45541597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 455555030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman if (CIdx->getValue() < NumLoElts) { 45561597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 45571597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 45581597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 455955030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman Idx = DAG.getConstant(CIdx->getValue() - NumLoElts, 45607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx.getValueType()); 45611597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 45627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45631597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 45641597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 45657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ExpandEXTRACT_VECTOR_ELT(Op); 45661597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 45677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Store the value to a temporary stack slot, then LOAD the scalar 45687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // element back out. 456985dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(Vec.getValueType()); 45707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Vec, StackPtr, NULL, 0); 45717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Add the offset to the index. 457383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned EltSize = Op.getValueType().getSizeInBits()/8; 45747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 45757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman DAG.getConstant(EltSize, Idx.getValueType())); 457690bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 45778e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands if (Idx.getValueType().bitsGT(TLI.getPointerTy())) 4578f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::TRUNCATE, TLI.getPointerTy(), Idx); 457990bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling else 4580f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::ZERO_EXTEND, TLI.getPointerTy(), Idx); 458190bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 45827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 45837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 45851597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 45867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Op; 45871597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 45881597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 45897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_SUBVECTOR - Expand a EXTRACT_SUBVECTOR operation. For now 45906595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman/// we assume the operation can be split if it is not already legal. 45917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_SUBVECTOR(SDOperand Op) { 45926595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // We know that operand #0 is the Vec vector. For now we assume the index 45936595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // is a constant and that the extracted result is a supported hardware type. 45946595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Vec = Op.getOperand(0); 45956595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Idx = LegalizeOp(Op.getOperand(1)); 45966595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 459783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElems = Vec.getValueType().getVectorNumElements(); 45986595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 459983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (NumElems == Op.getValueType().getVectorNumElements()) { 46006595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // This must be an access of the desired vector length. Return it. 46017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Vec; 46026595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 46036595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 46046595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 46056595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Lo, Hi; 46066595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SplitVectorOp(Vec, Lo, Hi); 46076595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (CIdx->getValue() < NumElems/2) { 46086595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Lo; 46096595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } else { 46106595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Hi; 46116595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 46126595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 46136595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 46146595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // It's now an extract from the appropriate high or low part. Recurse. 46156595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 46167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return ExpandEXTRACT_SUBVECTOR(Op); 46174aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 46184aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 4619750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 4620750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 4621750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 4622750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 4623750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 4624750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 4625750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 4626750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 4627750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 4628638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen SDOperand Tmp1, Tmp2, Tmp3, Result; 4629750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4630750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 4631750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 4632750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 4633750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 4634750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4635750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 4636750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 4637750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 4638750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4639750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 464083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (LHS.getValueType().isInteger()) { 464183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = LHS.getValueType(); 464283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 4643750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4644750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 4645750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 4646750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 4647750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 4648750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 4649750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 4650750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4651750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4652750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 4653750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 4654750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 4655750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 4656750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 4657750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 4658750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 4659750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4660750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 4661750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4662750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4663750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4664750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4665750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4666750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 4667750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4668750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 4669750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4670750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4671750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4672750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4673750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 46742b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case Expand: { 467583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = LHS.getValueType(); 46762b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 46772b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Expand into one or more soft-fp libcall(s). 467856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC1, LC2 = RTLIB::UNKNOWN_LIBCALL; 46792b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 46802b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETEQ: 46812b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOEQ: 468256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 46832b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46842b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETNE: 46852b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUNE: 468656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64; 46872b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46882b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGE: 46892b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGE: 469056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 46912b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46922b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLT: 46932b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLT: 469456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 46952b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46962b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLE: 46972b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLE: 469856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 46992b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47002b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGT: 47012b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGT: 470256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 47032b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47042b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUO: 4705d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 4706d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng break; 47072b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETO: 47085efdecc030f1a71cdb5b49d97c6c1c45e68ff731Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64; 47092b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47102b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: 471156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 47122b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 47132b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETONE: 47142b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // SETONE = SETOLT | SETOGT 471556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 47162b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Fallthrough 47172b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGT: 471856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 47192b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47202b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGE: 472156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 47222b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47232b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULT: 472456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 47252b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47262b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULE: 472756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 47282b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 472956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SETUEQ: 473056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 473156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 47322b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: assert(0 && "Unsupported FP setcc!"); 47332b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 47342b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 47352b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 47362b49c500838666dd0186d021389d4dd70ffda240Evan Cheng SDOperand Dummy; 4737460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Tmp1 = ExpandLibCall(LC1, 473847857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4739b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 47402b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getConstant(0, MVT::i32); 4741d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng CC = DAG.getCondCode(TLI.getCmpLibcallCC(LC1)); 474256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng if (LC2 != RTLIB::UNKNOWN_LIBCALL) { 47435b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(Tmp1), Tmp1, Tmp2, 47445922f561c65968ef1865cc8434d191041e450602Nate Begeman CC); 4745460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands LHS = ExpandLibCall(LC2, 4746460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4747b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 47485b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(LHS), LHS, Tmp2, 4749d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng DAG.getCondCode(TLI.getCmpLibcallCC(LC2))); 47502b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 47512b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = SDOperand(); 47522b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 47532b49c500838666dd0186d021389d4dd70ffda240Evan Cheng LHS = Tmp1; 47542b49c500838666dd0186d021389d4dd70ffda240Evan Cheng RHS = Tmp2; 47552b49c500838666dd0186d021389d4dd70ffda240Evan Cheng return; 47562b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 47572b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 4758750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 4759750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 4760638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ExpandOp(RHS, RHSLo, RHSHi); 4761638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); 4762638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4763638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen if (VT==MVT::ppcf128) { 4764638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FIXME: This generated code sucks. We want to generate 4765638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, hi1, hi2 4766638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // BNE crN, L: 4767638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, lo1, lo2 4768638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // The following can be improved, but not that much. 47695b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, ISD::SETEQ); 47705b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, CCCode); 4771638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp3 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 47725b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, ISD::SETNE); 47735b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, CCCode); 4774638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 4775638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp3); 4776638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = SDOperand(); 4777638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen break; 4778638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen } 4779638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4780638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen switch (CCCode) { 4781750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4782750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4783750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 4784750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 4785750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 4786750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 4787750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 4788750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 4789750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4790750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4791750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4792750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 4793750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 4794750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 4795750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 4796750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4797750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 4798750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 4799750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 4800750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 4801750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 4802002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman CST->isNullValue()) || // X < 0 4803750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 4804750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 4805750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 4806750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 4807750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4808750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4809750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4810750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 4811750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 48122e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng switch (CCCode) { 4813750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 4814750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4815750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 4816750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4817750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 4818750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4819750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 4820750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4821750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 4822750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4823750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4824750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 4825750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 4826750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 4827750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4828750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 4829750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 48302e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 48315b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, 48325922f561c65968ef1865cc8434d191041e450602Nate Begeman LowCC, false, DagCombineInfo); 48332e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp1.Val) 48345b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, LowCC); 48355b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, 48362e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode, false, DagCombineInfo); 48372e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp2.Val) 48385b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(LHSHi), LHSHi, 48395922f561c65968ef1865cc8434d191041e450602Nate Begeman RHSHi,CC); 48402e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng 48412e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.Val); 48422e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.Val); 4843002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((Tmp1C && Tmp1C->isNullValue()) || 4844002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->isNullValue() && 48452e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 48462e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 4847002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->getAPIntValue() == 1 && 48482e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 48492e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 48502e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // low part is known false, returns high part. 48512e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LE / GE, if high part is known false, ignore the low part. 48522e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LT / GT, if high part is known true, ignore the low part. 48532e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Tmp2; 48542e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 48552e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } else { 48565b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Result = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, 48572e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::SETEQ, false, DagCombineInfo); 48582e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Result.Val) 48595b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Result=DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, 48605922f561c65968ef1865cc8434d191041e450602Nate Begeman ISD::SETEQ); 48612e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 48622e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result, Tmp1, Tmp2)); 48632e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Result; 48642e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 48652e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } 4866750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4867750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 48682b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 4869750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 4870750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 4871750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 4872750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 48731401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// EmitStackConvert - Emit a store/load combination to the stack. This stores 48741401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// SrcOp to a stack slot of type SlotVT, truncating it if needed. It then does 48751401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// a load from the stack slot to DestVT, extending it if needed. 48761401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// The resultant code need not be legal. 48771401d15c99b284ead81b8476a6db95328c5f28fdChris LattnerSDOperand SelectionDAGLegalize::EmitStackConvert(SDOperand SrcOp, 487883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SlotVT, 487983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT DestVT) { 488035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 48811401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner SDOperand FIPtr = DAG.CreateStackTemporary(SlotVT); 48821401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 4883bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(FIPtr); 488469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman int SPFI = StackPtrFI->getIndex(); 488569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 488683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned SrcSize = SrcOp.getValueType().getSizeInBits(); 488783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned SlotSize = SlotVT.getSizeInBits(); 488883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned DestSize = DestVT.getSizeInBits(); 48891401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 48901401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // Emit a store to the stack slot. Use a truncstore if the input value is 48911401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // later than DestVT. 48921401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner SDOperand Store; 48931401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SrcSize > SlotSize) 489469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Store = DAG.getTruncStore(DAG.getEntryNode(), SrcOp, FIPtr, 48953069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 489669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SPFI, SlotVT); 48971401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner else { 48981401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SrcSize == SlotSize && "Invalid store"); 489969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, 49003069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 490183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SPFI); 49021401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner } 490335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 490435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 49051401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SlotSize == DestSize) 49061401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0); 49071401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 49081401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SlotSize < DestSize && "Unknown extension!"); 49091401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner return DAG.getExtLoad(ISD::EXTLOAD, DestVT, Store, FIPtr, NULL, 0, SlotVT); 491035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 491135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 49124352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDOperand SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 49134352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 49144352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 491585dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(Node->getValueType(0)); 491669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 4917bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(StackPtr); 491869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman int SPFI = StackPtrFI->getIndex(); 491969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 4920786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 49213069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), SPFI); 492269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, 49233069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), SPFI); 49244352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 49254352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 49264352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 4927ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 492807a96765daedf180a7102d39fe56c499878312b7Dan Gohman/// support the operation, but do support the resultant vector type. 4929ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 4930ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4931ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 493287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 4933033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 4934ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 493587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 4936f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 4937f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // FIXME: it would be far nicer to change this into map<SDOperand,uint64_t> 4938f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // and use a bitmask instead of a list of elements. 4939033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> > Values; 4940033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 49412eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 49422eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 49432eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 49442eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 49452eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4946033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 4947033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand V = Node->getOperand(i); 494889a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 4949033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 4950ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 4951033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 495287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 49532eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 49542eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 49552eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 49562eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 49572eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 49582eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 4959ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4960ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4961ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 4962ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 4963ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 4964ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 4965ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 4966ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4967ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 4968ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4969ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 49702eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 4971ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 497283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 4973ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 4974033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 4975ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 4976ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 497702a260aa11a2e1b2c14335274d3c42ca3f3eabc0Chris Lattner CV.push_back(ConstantFP::get(V->getValueAPF())); 4978ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 497902a260aa11a2e1b2c14335274d3c42ca3f3eabc0Chris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 498002a260aa11a2e1b2c14335274d3c42ca3f3eabc0Chris Lattner CV.push_back(ConstantInt::get(V->getAPIntValue())); 4981ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 4982ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 498302a260aa11a2e1b2c14335274d3c42ca3f3eabc0Chris Lattner const Type *OpNTy = 498483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands Node->getOperand(0).getValueType().getTypeForMVT(); 4985ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 4986ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4987ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 49889d6565a5b1fbc4286d6ee638d8f47a3171a9ed7eReid Spencer Constant *CP = ConstantVector::get(CV); 4989ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 499069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, 49913069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 4992ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 49932eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 49942eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 49952eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 499683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT MaskVT = MVT::getIntVectorWithNumElements(NumElems); 499783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDOperand Zero = DAG.getConstant(0, MaskVT.getVectorElementType()); 49982eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner std::vector<SDOperand> ZeroVec(NumElems, Zero); 4999bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 5000bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 5001033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 50022eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 50034352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 50042eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 50052eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand LowValVec = 50062eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 50072eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 50082eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 50092eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 50102eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 50112eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 50122eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 50132eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 50142eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 5015033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 5016033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 5017033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 5018f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // Get the two values in deterministic order. 5019f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner SDOperand Val1 = Node->getOperand(1); 5020f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner SDOperand Val2; 5021f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::map<SDOperand, std::vector<unsigned> >::iterator MI = Values.begin(); 5022f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner if (MI->first != Val1) 5023f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val2 = MI->first; 5024f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner else 5025f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val2 = (++MI)->first; 5026f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 5027f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // If Val1 is an undef, make sure end ends up as Val2, to ensure that our 5028f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // vector shuffle has the undef vector on the RHS. 5029f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner if (Val1.getOpcode() == ISD::UNDEF) 5030f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::swap(Val1, Val2); 5031f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 5032033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 503383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT MaskVT = MVT::getIntVectorWithNumElements(NumElems); 503483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT MaskEltVT = MaskVT.getVectorElementType(); 5035033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> MaskVec(NumElems); 5036f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 5037f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // Set elements of the shuffle mask for Val1. 5038f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::vector<unsigned> &Val1Elts = Values[Val1]; 5039f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner for (unsigned i = 0, e = Val1Elts.size(); i != e; ++i) 5040f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner MaskVec[Val1Elts[i]] = DAG.getConstant(0, MaskEltVT); 5041f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 5042f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // Set elements of the shuffle mask for Val2. 5043f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::vector<unsigned> &Val2Elts = Values[Val2]; 5044f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner for (unsigned i = 0, e = Val2Elts.size(); i != e; ++i) 5045f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner if (Val2.getOpcode() != ISD::UNDEF) 5046f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner MaskVec[Val2Elts[i]] = DAG.getConstant(NumElems, MaskEltVT); 5047f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner else 5048f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner MaskVec[Val2Elts[i]] = DAG.getNode(ISD::UNDEF, MaskEltVT); 5049f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 5050bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 5051bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 5052033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 5053f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // If the target supports SCALAR_TO_VECTOR and this shuffle mask, use it. 50544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 50554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 5056f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val1 = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), Val1); 5057f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val2 = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), Val2); 5058f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner SDOperand Ops[] = { Val1, Val2, ShuffleMask }; 5059033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 5060033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 5061f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), Ops, 3); 5062033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 5063033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 5064ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5065ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 5066ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 5067ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 506883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Node->getValueType(0); 5069ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 507085dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand FIPtr = DAG.CreateStackTemporary(VT); 5071ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5072ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 5073bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Stores; 507483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned TypeByteSize = Node->getOperand(0).getValueType().getSizeInBits()/8; 5075ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 5076ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 5077ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 5078ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 5079ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5080841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 5081ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5082ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 5083ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 5084ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5085786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 50868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0)); 5087ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 5088ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5089ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 5090ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 5091bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 5092bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 5093ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 5094ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 5095ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5096ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 5097466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 5098ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 5099ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 51005b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 51015b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 51025b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 51035b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 51045b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 51055b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 51065b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 5107bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { LHSL, LHSH, Amt }; 510883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = LHSL.getValueType(); 5109f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 51105b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 51115b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 51125b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 51135b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 5114e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 5115e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 5116e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 5117e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 5118e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 5119e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 5120e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 5121e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 5122f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 512383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(Op.getValueType()); 5124f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 512583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShTy = ShAmt.getValueType(); 512683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned ShBits = ShTy.getSizeInBits(); 512783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned VTBits = Op.getValueType().getSizeInBits(); 512883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 5129f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 51307a3c85583d523edb90aa957a02385254957c6e37Chris Lattner // Handle the case when Amt is an immediate. 5131f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 5132f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 5133f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 5134f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 5135f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 5136f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 5137f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 5138f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5139f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5140f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5141f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5142f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5143f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 5144ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5145ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 5146ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 5147f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5148f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 5149f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 5150f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 5151f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 5152f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5153f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5154f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 5155f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5156f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5157f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5158f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5159f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 5160f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5161ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5162ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 5163ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 5164f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5165f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 5166f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 5167f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 5168f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 5169f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5170f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5171f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 5172f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5173edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 5174f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 5175f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5176edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 5177f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 5178edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 5179f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 5180ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5181ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 5182edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 5183ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 5184f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5185f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 5186f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 5187f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 5188f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 5189f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5190f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5191f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5192f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 51930ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51940ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 51950ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 519691dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman APInt Mask = APInt::getHighBitsSet(ShBits, ShBits - Log2_32(NVTBits)); 519791dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman APInt KnownZero, KnownOne; 5198ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman DAG.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 51990ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 52009e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // If we know that if any of the high bits of the shift amount are one, then 52019e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // we can do this as a couple of simple shifts. 520291dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman if (KnownOne.intersects(Mask)) { 52030ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 52040ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 520591dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman DAG.getConstant(~Mask, Amt.getValueType())); 52060ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 52070ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 52080ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 52090ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 52100ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 52110ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 52120ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 52130ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 52140ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52150ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 52160ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 52170ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 52180ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52190ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 52200ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 52210ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 52220ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 52230ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52240ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 52250ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 52260ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 52279e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // If we know that the high bits of the shift amount are all zero, then we can 52289e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // do this as a couple of simple shifts. 52299e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman if ((KnownZero & Mask) == Mask) { 52300ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 52310ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 52320ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 52330ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 52340ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 52350ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 52360ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 52370ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 52380ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 52390ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 52400ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 52410ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 52420ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 52430ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 52440ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52450ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 52460ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 52470ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 52480ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 52490ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 52500ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52510ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 52520ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 52530ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 52540ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 52550ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 52560ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52570ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 52580ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 52590ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 5260f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 5261e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 526277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 52639c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 526477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 526577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 526677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 526777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 5268460a14e09c2af630fc1e840dcb3e0f725663067bDuncan SandsSDOperand SelectionDAGLegalize::ExpandLibCall(RTLIB::Libcall LC, SDNode *Node, 526947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned, SDOperand &Hi) { 52706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 52716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 52726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 52736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 52746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 52756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 527677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 527747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 527877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 527983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ArgVT = Node->getOperand(i).getValueType(); 528083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const Type *ArgTy = ArgVT.getTypeForMVT(); 528147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; 5282d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.isSExt = isSigned; 528300fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands Entry.isZExt = !isSigned; 528447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 528577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 5286460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands SDOperand Callee = DAG.getExternalSymbol(TLI.getLibcallName(LC), 5287460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands TLI.getPointerTy()); 5288edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 52890d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 529083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands const Type *RetTy = Node->getValueType(0).getTypeForMVT(); 52910d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 529200fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands TLI.LowerCallTo(InChain, RetTy, isSigned, !isSigned, false, CallingConv::C, 529300fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands false, Callee, Args, DAG); 52940d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 52956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 52966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 52976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 52986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 529999c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 53000d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 530177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 530277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 5303456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 530499c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 530577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 530699c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 530799c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 530877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 530922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 531022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 531122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 531222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 53134c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// ExpandIntToFP - Expand a [US]INT_TO_FP operation. 53144c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// 531522cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 531683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan SandsExpandIntToFP(bool isSigned, MVT DestTy, SDOperand Source) { 531783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SourceVT = Source.getValueType(); 5318034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman bool ExpandSource = getTypeAction(SourceVT) == Expand; 531922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 53209845eb5b033db5ba5213d0b8dba958c1e168ccd3Evan Cheng // Special case for i32 source to take advantage of UINTTOFP_I32_F32, etc. 53219845eb5b033db5ba5213d0b8dba958c1e168ccd3Evan Cheng if (!isSigned && SourceVT != MVT::i32) { 532234bc178e4da0105f3a50a00cc06ca1193c529bcbDan Gohman // The integer value loaded will be incorrectly if the 'sign bit' of the 532322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 532422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 5325034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman SDOperand Hi; 5326034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman if (ExpandSource) { 5327034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman SDOperand Lo; 5328034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman ExpandOp(Source, Lo, Hi); 5329034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman Source = DAG.getNode(ISD::BUILD_PAIR, SourceVT, Lo, Hi); 5330034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman } else { 5331034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman // The comparison for the sign bit will use the entire operand. 5332034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman Hi = Source; 5333034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman } 533422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 533522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 533622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 5337034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman SDOperand SignedConv = ExpandIntToFP(true, DestTy, Source); 533822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 53395b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultType(Hi), Hi, 534022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 534122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 53420bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner SDOperand Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); 534322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 534422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 534522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 534622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 534734bc178e4da0105f3a50a00cc06ca1193c529bcbDan Gohman static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 534822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 534922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 535022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 535122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 535222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 535369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 53543069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 53558e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands else if (DestTy.bitsGT(MVT::f32)) 53564c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // FIXME: Avoid the extend by construction the right constantpool? 5357118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, DestTy, DAG.getEntryNode(), 535869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman CPIdx, 53593069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0, 536069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman MVT::f32); 53619e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen else 53629e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Unexpected conversion"); 53639e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen 536483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SCVT = SignedConv.getValueType(); 53654c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (SCVT != DestTy) { 53664c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // Destination type needs to be expanded as well. The FADD now we are 53674c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // constructing will be expanded into a libcall. 536883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (SCVT.getSizeInBits() != DestTy.getSizeInBits()) { 536983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(SCVT.getSizeInBits() * 2 == DestTy.getSizeInBits()); 5370d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman SignedConv = DAG.getNode(ISD::BUILD_PAIR, DestTy, 53714c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv, SignedConv.getValue(1)); 53724c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 53734c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BIT_CONVERT, DestTy, SignedConv); 53744c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 537522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 537622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 537722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 537822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 5379d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman switch (TLI.getOperationAction(ISD::SINT_TO_FP, SourceVT)) { 538022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 538122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 538222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 538322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 538422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 538522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 538622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 538722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 538822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 538922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 539022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 539122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 539222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 539322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 539422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 5395034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman if (ExpandSource) { 5396034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman SDOperand SrcLo, SrcHi; 5397034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman ExpandOp(Source, SrcLo, SrcHi); 5398034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman Source = DAG.getNode(ISD::BUILD_PAIR, SourceVT, SrcLo, SrcHi); 5399034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman } 540022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 540156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 5402110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng if (SourceVT == MVT::i32) { 5403110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng if (DestTy == MVT::f32) 5404db45d1c649aa2e7c71accd8ad460aa764886cab3Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F32 : RTLIB::UINTTOFP_I32_F32; 5405110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng else { 5406110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng assert(DestTy == MVT::f64 && "Unknown fp value type!"); 5407110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F64 : RTLIB::UINTTOFP_I32_F64; 5408110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng } 5409110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng } else if (SourceVT == MVT::i64) { 5410d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman if (DestTy == MVT::f32) 5411d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I64_F32; 5412034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman else if (DestTy == MVT::f64) 5413d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I64_F64; 5414034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman else if (DestTy == MVT::f80) 5415034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman LC = RTLIB::SINTTOFP_I64_F80; 5416034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman else { 5417034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman assert(DestTy == MVT::ppcf128 && "Unknown fp value type!"); 5418034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman LC = RTLIB::SINTTOFP_I64_PPCF128; 5419d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman } 5420d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman } else if (SourceVT == MVT::i128) { 5421d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman if (DestTy == MVT::f32) 5422d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I128_F32; 5423d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman else if (DestTy == MVT::f64) 5424d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I128_F64; 5425d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman else if (DestTy == MVT::f80) 5426d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I128_F80; 5427d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman else { 5428d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman assert(DestTy == MVT::ppcf128 && "Unknown fp value type!"); 5429d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I128_PPCF128; 5430d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman } 5431d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman } else { 5432d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman assert(0 && "Unknown int value type"); 543322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 54346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 54354c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(TLI.getLibcallName(LC) && "Don't know how to expand this SINT_TO_FP!"); 54366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 5437a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman SDOperand HiPart; 5438460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands SDOperand Result = ExpandLibCall(LC, Source.Val, isSigned, HiPart); 5439110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng if (Result.getValueType() != DestTy && HiPart.Val) 5440a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Result = DAG.getNode(ISD::BUILD_PAIR, DestTy, Result, HiPart); 5441a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman return Result; 544222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 544322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 544422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 544522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 544622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 544722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 544822cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 544922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 545083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT DestVT) { 545122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 545222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 545322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 545423594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner // Get the stack frame index of a 8 byte buffer. 545523594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner SDOperand StackSlot = DAG.CreateStackTemporary(MVT::f64); 545623594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner 545722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 545822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 545922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 5460408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Hi = StackSlot; 5461408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 5462408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 5463408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 5464408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 546522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 546622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 546722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 546822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 546922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 547022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 547122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 547222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 547322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 547422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 5475786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store1 = DAG.getStore(DAG.getEntryNode(), 54768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op0Mapped, Lo, NULL, 0); 547722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 547822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 547922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 54808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); 548122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 5482466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 548322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 548422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 548522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 548622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 548722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 548822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 548922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 549022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 549122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 549222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 549322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 549422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 549522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 54968e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands } else if (DestVT.bitsLT(MVT::f64)) { 54970bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, DestVT, Sub, 54980bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(0)); 54998e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands } else if (DestVT.bitsGT(MVT::f64)) { 5500118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, DestVT, Sub); 550122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 550222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 550322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 550422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 550522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 550622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 55075b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultType(Op0), Op0, 550822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 550922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 55100bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner SDOperand Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); 551122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 551222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 551322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 551422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 551522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 551622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 551722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 551883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands switch (Op0.getValueType().getSimpleVT()) { 551922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 552022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 552122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 552222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 552322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 552422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 552522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 552647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 552722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 552822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 552922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 553022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 553122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 553269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 55333069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 553422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 553569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = 553669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, DestVT, 553769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman DAG.getEntryNode(), CPIdx, 55383069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0, 553969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman MVT::f32)); 554022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 554122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 554222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 554322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 554422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 554522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 554622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 554722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 554822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 554922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 555022cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 555183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT DestVT, 555222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 555322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 555483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewInTy = LegalOp.getValueType(); 555522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 555622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 555722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 555822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 555922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 556083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NewInTy = (MVT::SimpleValueType)(NewInTy.getSimpleVT()+1); 556183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewInTy.isInteger() && "Ran out of possibilities!"); 556222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 556322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 556422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 556522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 556622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 556722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 556822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 556922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 557022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 557122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 557222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 557322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 557422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 557522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 557622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 557722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 557822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 557922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 558022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 558122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 558222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 558322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 558422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 558522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 558622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 558722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 558822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 558922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 559022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 559122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 559222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 559322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 559422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 559522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 559622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 559722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 559877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 559977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 560022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 560122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 560222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 560322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 560422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 560522cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 560683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT DestVT, 560722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 560822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 560983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewOutTy = DestVT; 56109c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 561122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 5612e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 561322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 561422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 561583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands NewOutTy = (MVT::SimpleValueType)(NewOutTy.getSimpleVT()+1); 561683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewOutTy.isInteger() && "Ran out of possibilities!"); 561766de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 561822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 561922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 562022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 562122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 562222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 562322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 562422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 562522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 562622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 562722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 562822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 562922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 5630e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 563122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 563222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 563322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 563422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 563522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 563622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 563722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 563822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 563922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 564022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 5641e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 564222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 56430d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 564422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 5645a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 5646a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 564727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 564827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Okay, we found the operation and type to use. 564927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner SDOperand Operation = DAG.getNode(OpToUse, NewOutTy, LegalOp); 565027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 565127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // If the operation produces an invalid type, it must be custom lowered. Use 565227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // the target lowering hooks to expand it. Just keep the low part of the 565327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // expanded operation, we know that we're truncating anyway. 565427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner if (getTypeAction(NewOutTy) == Expand) { 565527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner Operation = SDOperand(TLI.ExpandOperationResult(Operation.Val, DAG), 0); 565627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Operation.Val && "Didn't return anything"); 565727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 565827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 565927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Truncate the result of the extended FP_TO_*INT operation to the desired 566027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // size. 566127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, Operation); 566222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 566313689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 566422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 566522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 566622cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 566783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 566883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SHVT = TLI.getShiftAmountTy(); 566922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 567083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands switch (VT.getSimpleVT()) { 567122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 567222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 567322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 567422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 567522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 567622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 567722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 567822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 567922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 568022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 568122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 568222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 568322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 568422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 568522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 568622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 568722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 568822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 568922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 569022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 569122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 569222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 569322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 569422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 569522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 569622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 569722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 569822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 569922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 570022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 570122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 570222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 570322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 570422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 570522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 570622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 570722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 57080d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 570977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 5710edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 571122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 571222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 571322cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 571422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 571522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 571622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 571722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 571822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 571922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 572022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 572122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 572283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 572383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShVT = TLI.getShiftAmountTy(); 572483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned len = VT.getSizeInBits(); 572522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 572622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 572722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 572822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 572922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 573022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 573122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 573222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 573322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 573422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 573522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 573622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 573722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 573822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 573922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 574022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 574122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 574222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 574322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 574422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 574583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 574683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT ShVT = TLI.getShiftAmountTy(); 574783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned len = VT.getSizeInBits(); 574822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 574922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 575022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 575122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 575222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 575322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 575422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 575522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 575622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 575722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 575822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 575922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 576083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 576122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 576222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 576322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 576422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 576522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 576622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 576722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 576822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 576983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(VT.getSizeInBits(), VT), 577022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 577122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 577222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 577322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 577422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 5775e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 57763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 57773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 57783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 57793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 57803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 57813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 578283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = Op.getValueType(); 578383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 57843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 57853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 57868e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands assert(((NVT.isInteger() && NVT.bitsLT(VT)) || VT.isFloatingPoint() || 578783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands VT.isVector()) && "Cannot expand to FP value or to larger int value!"); 57883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 57896fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 57909cac5259fe237120a0c347d6d14e549005148f1bRoman Levenstein DenseMap<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 57916fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 57926fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 57936fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 57946fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 57956fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 57963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 57973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 57983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 5799348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 5800348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 58016eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen case ISD::FP_ROUND_INREG: 58026eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (VT == MVT::ppcf128 && 58036eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TLI.getOperationAction(ISD::FP_ROUND_INREG, VT) == 58046eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TargetLowering::Custom) { 5805fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen SDOperand SrcLo, SrcHi, Src; 5806fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen ExpandOp(Op.getOperand(0), SrcLo, SrcHi); 5807fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Src = DAG.getNode(ISD::BUILD_PAIR, VT, SrcLo, SrcHi); 5808fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen SDOperand Result = TLI.LowerOperation( 5809fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_ROUND_INREG, VT, Src, Op.getOperand(1)), DAG); 58106eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen assert(Result.Val->getOpcode() == ISD::BUILD_PAIR); 58116eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Lo = Result.Val->getOperand(0); 58126eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Hi = Result.Val->getOperand(1); 58136eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 58146eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 58156eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen // fall through 5816348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 5817e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 581839833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 5819e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 58203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 58213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 58221953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman case ISD::EXTRACT_ELEMENT: 58231953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman ExpandOp(Node->getOperand(0), Lo, Hi); 58241953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 58251953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman return ExpandOp(Hi, Lo, Hi); 582618714aeaed2a74bfc85dc5abe24a9193882406c5Dan Gohman return ExpandOp(Lo, Lo, Hi); 582725f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen case ISD::EXTRACT_VECTOR_ELT: 582825f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen assert(VT==MVT::i64 && "Do not know how to expand this operator!"); 582925f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen // ExpandEXTRACT_VECTOR_ELT tolerates invalid result types. 583025f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen Lo = ExpandEXTRACT_VECTOR_ELT(Op); 583125f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen return ExpandOp(Lo, Lo, Hi); 5832fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 5833aa975c1c4785a1d7930f2cd1026cb40ce54d21e4Evan Cheng NVT = TLI.getTypeToExpandTo(VT); 5834fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 5835fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 5836fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 58373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 583883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 5839050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman const APInt &Cst = cast<ConstantSDNode>(Node)->getAPIntValue(); 5840050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman Lo = DAG.getConstant(APInt(Cst).trunc(NVTBits), NVT); 5841050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman Hi = DAG.getConstant(Cst.lshr(NVTBits).trunc(NVTBits), NVT); 58423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 58433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5844004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng case ISD::ConstantFP: { 5845004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 5846a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen if (CFP->getValueType(0) == MVT::ppcf128) { 5847a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen APInt api = CFP->getValueAPF().convertToAPInt(); 5848a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[1])), 5849a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5850a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Hi = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[0])), 5851a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5852a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen break; 5853a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen } 5854279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Lo = ExpandConstantFP(CFP, false, DAG, TLI); 58559f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 58569f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5857004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5858004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5859d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 58608137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 58618137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 58628137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 5863d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 586427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 586527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::MERGE_VALUES: 5866c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner if (Node->getNumValues() == 1) { 5867c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 5868c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner break; 5869c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner } 587027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // FIXME: For now only expand i64,chain = MERGE_VALUES (x, y) 587127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Op.ResNo == 0 && Node->getNumValues() == 2 && 587227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner Op.getValue(1).getValueType() == MVT::Other && 587327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner "unhandled MERGE_VALUES"); 587427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 587527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Remember that we legalized the chain. 587627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Op.getOperand(1))); 587727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner break; 587858f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 587958f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 588058f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 58814bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 58824bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 58834bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 58844bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 58854bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 588658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 588783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits()-1, 588858f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 588958f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 5890d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 5891d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 5892d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 5893d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 5894d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 5895d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 5896d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 5897d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 5898d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 5899edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 5900edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 59019b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 59029b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 59039b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 5904edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 5905edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 5906edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 590739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 590839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 59093becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 591083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDOperand BitsC = DAG.getConstant(NVT.getSizeInBits(), NVT); 591139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 59125b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultType(HLZ), HLZ, BitsC, 59137cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 591439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 591539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 591639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 591739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 591839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 591939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 592039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 592139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 592239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 592339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 59243becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 592583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SDOperand BitsC = DAG.getConstant(NVT.getSizeInBits(), NVT); 592639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 59275b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultType(LTZ), LTZ, BitsC, 59287cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 592939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 593039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 593139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 593239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 593339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 593439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 593539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 5936edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 5937acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 59388137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 59398137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 5940acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 5941acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 5942acc398c195a697795bff3245943d104eb19192b9Nate Begeman 5943acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 59448137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 5945acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 59460753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 5947acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 5948acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 5949acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 5950acc398c195a697795bff3245943d104eb19192b9Nate Begeman 59513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 5952466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 5953466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ch = LD->getChain(); // Legalize the chain. 5954466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ptr = LD->getBasePtr(); // Legalize the pointer. 5955466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 5956d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = LD->getSrcValueOffset(); 5957d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = LD->getAlignment(); 5958d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = LD->isVolatile(); 5959466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5960466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 5961d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5962d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5963004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 5964004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // f32->i32 or f64->i64 one to one expansion. 5965004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Remember that we legalized the chain. 5966004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 59679f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng // Recursively expand the new load. 59689f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(NVT) == Expand) 59699f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5970004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5971004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5972466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5973466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 597483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = Lo.getValueType().getSizeInBits()/8; 5975466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 59760bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 59777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 5978dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 5979d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Hi = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5980d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5981466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5982466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 5983466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 5984466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5985466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 5986466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5987466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5988466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 59890753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 5990466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 5991466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 599283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = LD->getMemoryVT(); 5993548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng 5994b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen if ((VT == MVT::f64 && EVT == MVT::f32) || 5995b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen (VT == MVT::ppcf128 && (EVT==MVT::f64 || EVT==MVT::f32))) { 5996548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 5997548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng SDOperand Load = DAG.getLoad(EVT, Ch, Ptr, LD->getSrcValue(), 5998d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5999548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // Remember that we legalized the chain. 6000548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Load.getValue(1))); 6001548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); 6002548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng break; 6003548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng } 6004466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 6005466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 6006466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), 6007d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 6008466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 6009466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, LD->getSrcValue(), 6010d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, EVT, isVolatile, 6011d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 6012466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 6013466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 6014466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 6015466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 6016466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 6017466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 6018466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 601983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned LoSize = Lo.getValueType().getSizeInBits(); 6020466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 6021466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 6022466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 6023466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 6024466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 6025466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 6026466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 6027466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 6028466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 6029466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 60303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 60313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 60323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 60333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 60343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 60353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 60363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 60373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 60383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 60393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 60403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 60413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 60423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 6043456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 60443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 60453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 604619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 604719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 6048456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 604919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 605019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 60513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 60523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 60539373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 60549373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 60559373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 60569373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 605719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 605819103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 60599373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 60609373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 606119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 606219103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 606319103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Node->getOperand(1), TH, FH, Node->getOperand(4)); 60649373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 60659373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 60668137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 606713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 60688137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 606913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 607013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 607113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 60723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 60733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 60743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 60758137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 6076edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 60773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 60783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 607983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned LoSize = Lo.getValueType().getSizeInBits(); 60808137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 60818137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 60823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 60833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 60848137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 60853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 60863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 60878137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 6088edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 60893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 60903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 60913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 609235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 60934c948eb373779718e5be36d7674382b52114bf65Chris Lattner case ISD::TRUNCATE: { 60944c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The input value must be larger than this value. Expand *it*. 60954c948eb373779718e5be36d7674382b52114bf65Chris Lattner SDOperand NewLo; 60964c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(Node->getOperand(0), NewLo, Hi); 60974c948eb373779718e5be36d7674382b52114bf65Chris Lattner 60984c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The low part is now either the right size, or it is closer. If not the 60994c948eb373779718e5be36d7674382b52114bf65Chris Lattner // right size, make an illegal truncate so we recursively expand it. 61004c948eb373779718e5be36d7674382b52114bf65Chris Lattner if (NewLo.getValueType() != Node->getValueType(0)) 61014c948eb373779718e5be36d7674382b52114bf65Chris Lattner NewLo = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), NewLo); 61024c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(NewLo, Lo, Hi); 61034c948eb373779718e5be36d7674382b52114bf65Chris Lattner break; 61044c948eb373779718e5be36d7674382b52114bf65Chris Lattner } 61054c948eb373779718e5be36d7674382b52114bf65Chris Lattner 610635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 6107f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner SDOperand Tmp; 6108f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 6109f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 6110f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 6111f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 6112f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 6113f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 6114f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 6115f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 6116f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 6117f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 61181a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng // f32 / f64 must be expanded to i32 / i64. 611913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 612013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 612119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 612219103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng ExpandOp(Lo, Lo, Hi); 61237b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 61247b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 61257b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 61267b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // If source operand will be expanded to the same type as VT, i.e. 61277b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // i64 <- f64, i32 <- f32, expand the source operand instead. 612883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT0 = Node->getOperand(0).getValueType(); 61297b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { 61307b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng ExpandOp(Node->getOperand(0), Lo, Hi); 61311a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 61321a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng } 61331a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng 6134f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 6135f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (Tmp.Val == 0) 61361401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Tmp = EmitStackConvert(Node->getOperand(0), VT, VT); 6137f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 613835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 613935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 614035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 6141f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 614227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::READCYCLECOUNTER: { 6143308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 6144308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 6145308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 614627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner SDOperand Tmp = TLI.LowerOperation(Op, DAG); 614727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Tmp.Val && "Node must be custom expanded!"); 614827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Tmp.getValue(0), Lo, Hi); 6149308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 615027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner LegalizeOp(Tmp.getValue(1))); 6151f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 615227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 6153f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 6154d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth case ISD::ATOMIC_LCS: { 6155d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth SDOperand Tmp = TLI.LowerOperation(Op, DAG); 6156d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth assert(Tmp.Val && "Node must be custom expanded!"); 6157d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth ExpandOp(Tmp.getValue(0), Lo, Hi); 6158d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 6159d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth LegalizeOp(Tmp.getValue(1))); 6160d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth break; 6161d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth } 6162d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth 6163d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth 6164d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth 61654e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 61664e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 616756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_SINT: { 616880a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 6169f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 6170f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 6171f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 61728137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 61738137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 6174f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 6175d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6176f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 6177f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 617880a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 617980a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 618007dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 618107dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 618207dffd6af673c73352150583150b242a93694f00Chris Lattner break; 618307dffd6af673c73352150583150b242a93694f00Chris Lattner } 618480a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 6185d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6186161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 6187a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (VT == MVT::i64) { 6188a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (Node->getOperand(0).getValueType() == MVT::f32) 6189a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F32_I64; 6190a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f64) 6191a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F64_I64; 6192a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f80) 6193a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F80_I64; 6194a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 6195a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_PPCF128_I64; 6196460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Hi); 6197a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i128) { 6198a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (Node->getOperand(0).getValueType() == MVT::f32) 6199a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F32_I128; 6200a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f64) 6201a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F64_I128; 6202a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f80) 6203a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F80_I128; 6204a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 6205a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_PPCF128_I128; 6206460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Hi); 6207a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else { 6208a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected uint-to-fp conversion!"); 6209a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } 62104e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 621156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 6212d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 621356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_UINT: { 621480a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 62158137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 62168137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 62178137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 62188137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 62198137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 62208137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 62218137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 62228137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 62238137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 62248137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 622507dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 622607dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 622707dffd6af673c73352150583150b242a93694f00Chris Lattner break; 622807dffd6af673c73352150583150b242a93694f00Chris Lattner } 622980a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 6230d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6231daccea18ca8357b4193ac3ba42a168e650b807e0Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 6232a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (VT == MVT::i64) { 6233a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (Node->getOperand(0).getValueType() == MVT::f32) 6234a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F32_I64; 6235a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f64) 6236a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F64_I64; 6237a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f80) 6238a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F80_I64; 6239a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 6240a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_PPCF128_I64; 6241460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Hi); 6242a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i128) { 6243a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (Node->getOperand(0).getValueType() == MVT::f32) 6244a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F32_I128; 6245a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f64) 6246a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F64_I128; 6247a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f80) 6248a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F80_I128; 6249a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 6250a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_PPCF128_I128; 6251460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Hi); 6252a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else { 6253a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected uint-to-fp conversion!"); 6254a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } 62554e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 625656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 62574e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 625805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 625950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6260348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 626150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 62628137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 626350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 626450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 626550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 626650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 626750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 626850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 626950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 627050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 627150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 627279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 627379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 627479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 6275002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if (ShAmt->getAPIntValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 627679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 627779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 627879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 627979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 628079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 628179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 628279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 628379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 628479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 628579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 628679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 628779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 628879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 628979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 6290e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6291348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6292e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 62934759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 62944759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 629505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 629605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 629705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 629805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6299348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 63004759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 63014759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 63024759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6303e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 6304460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SHL_I64, Node, false/*left shift=unsigned*/, Hi); 6305e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 630605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 6307e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 630805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 630950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6310348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 631150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 63128137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 631350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 631450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 631550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 631650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 631750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 631850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 631950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 632050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 632150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 6322e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6323348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6324e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 63254759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 63264759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 632705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 632805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 632905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 633005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6331348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 63324759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 63334759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 63344759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6335e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 6336460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SRA_I64, Node, true/*ashr is signed*/, Hi); 6337e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 633805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 633905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 634005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 634150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6342348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 634350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 63448137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 634550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 634650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 634750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 634850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 634950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 635050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 635150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 635250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 635350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 6354e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6355348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6356e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 63574759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 63584759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 635905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 636005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 636105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 636205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6363348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 63644759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 63654759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 63664759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6367e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 6368460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SRL_I64, Node, false/*lshr is unsigned*/, Hi); 6369e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 637005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 6371e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 6372edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 63738137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 63748137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 63758137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 63768137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 63778137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 63788137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 63798137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 63808137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 63818137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 63828137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 63838137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 63848137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 63858137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 63868137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 63878137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 638879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 638979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 6390bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 6391bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 6392bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 6393bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 6394551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 639579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 6396bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 639779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 6398551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 639979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 6400bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 640179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 6402551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 640384f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 64048137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 6405b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6406b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDC: 6407b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBC: { 6408b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 6409b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 6410b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 6411b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 6412b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6413b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[2] = { LHSL, RHSL }; 6414b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 6415b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6416b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner if (Node->getOpcode() == ISD::ADDC) { 6417b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 6418b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6419b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 6420b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } else { 6421b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 6422b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6423b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 6424b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6425b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 6426b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 6427b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 6428b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6429b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDE: 6430b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBE: { 6431b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 6432b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 6433b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 6434b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 6435b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6436b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[3] = { LHSL, RHSL, Node->getOperand(2) }; 6437b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 6438b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6439b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(Node->getOpcode(), VTList, LoOps, 3); 6440b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6441b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(Node->getOpcode(), VTList, HiOps, 3); 6442b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6443b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 6444b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 6445b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 6446b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6447c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 64487d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 64497d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 64508829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner SDOperand New = TLI.LowerOperation(Op, DAG); 64518829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner if (New.Val) { 64528829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 64537d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 64547d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 64557d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 64567d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 64573f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 64583f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 6459525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, NVT); 6460525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, NVT); 6461525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 6462c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 6463c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 6464c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 64652e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned OuterBitSize = Op.getValueSizeInBits(); 64662e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned InnerBitSize = RH.getValueSizeInBits(); 6467525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned LHSSB = DAG.ComputeNumSignBits(Op.getOperand(0)); 6468525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned RHSSB = DAG.ComputeNumSignBits(Op.getOperand(1)); 646976c605b18ee74e2c521a02431ab9e1ce6912d827Dan Gohman APInt HighMask = APInt::getHighBitsSet(OuterBitSize, InnerBitSize); 647076c605b18ee74e2c521a02431ab9e1ce6912d827Dan Gohman if (DAG.MaskedValueIsZero(Node->getOperand(0), HighMask) && 647176c605b18ee74e2c521a02431ab9e1ce6912d827Dan Gohman DAG.MaskedValueIsZero(Node->getOperand(1), HighMask)) { 6472525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The inputs are both zero-extended. 6473525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 6474525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a umul_lohi. 6475525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::UMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 6476525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = SDOperand(Lo.Val, 1); 6477525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6478525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6479525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU) { 6480525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhu+mul. 6481525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 6482525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 6483525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6484525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6485525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 64862e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman if (LHSSB > InnerBitSize && RHSSB > InnerBitSize) { 6487525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The input values are both sign-extended. 6488525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI) { 6489525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a smul_lohi. 6490525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::SMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 6491525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = SDOperand(Lo.Val, 1); 6492525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6493525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6494525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHS) { 6495525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhs+mul. 6496525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 6497525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 6498525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6499525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6500525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6501525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 6502525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // Lo,Hi = umul LHS, RHS. 6503525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDOperand UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, 6504525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman DAG.getVTList(NVT, NVT), LL, RL); 6505525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = UMulLOHI; 6506525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = UMulLOHI.getValue(1); 650756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 650856eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 650956eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 651056eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 6511a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 651256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 65138eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen if (HasMULHU) { 65148eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 65158eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 65168eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 65178eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 65188eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 65198eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 65208eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen break; 65218eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen } 6522c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 65233f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 6524525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // If nothing else, we can make a libcall. 6525460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::MUL_I64, Node, false/*sign irrelevant*/, Hi); 6526c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 6527c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 652856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SDIV: 6529460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SDIV_I64, Node, true, Hi); 653056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 653156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UDIV: 6532460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::UDIV_I64, Node, true, Hi); 653356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 653456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SREM: 6535460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::SREM_I64, Node, true, Hi); 653656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 653756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UREM: 6538460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::UREM_I64, Node, true, Hi); 653956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 65405c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng 65411a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FADD: 6542460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::ADD_F32, 6543460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::ADD_F64, 6544460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::ADD_F80, 6545460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::ADD_PPCF128), 654656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 65471a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 65481a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FSUB: 6549460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::SUB_F32, 6550460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::SUB_F64, 6551460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::SUB_F80, 6552460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::SUB_PPCF128), 655356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 65541a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 65551a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FMUL: 6556460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::MUL_F32, 6557460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::MUL_F64, 6558460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::MUL_F80, 6559460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::MUL_PPCF128), 656056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 65611a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 65621a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FDIV: 6563460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::DIV_F32, 6564460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::DIV_F64, 6565460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::DIV_F80, 6566460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::DIV_PPCF128), 656756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 65681a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 65691a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_EXTEND: 6570ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (VT == MVT::ppcf128) { 6571ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen assert(Node->getOperand(0).getValueType()==MVT::f32 || 6572ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0).getValueType()==MVT::f64); 6573ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen const uint64_t zero = 0; 6574ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (Node->getOperand(0).getValueType()==MVT::f32) 6575ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::FP_EXTEND, MVT::f64, Node->getOperand(0)); 6576ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen else 6577ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = Node->getOperand(0); 6578ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6579ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6580ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 6581460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::FPEXT_F32_F64, Node, true, Hi); 65821a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 65831a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_ROUND: 6584460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(RTLIB::FPROUND_F64_F32, Node, true, Hi); 65851a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 6586c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio case ISD::FPOWI: 6587460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::POWI_F32, 6588460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::POWI_F64, 6589460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::POWI_F80, 6590460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands RTLIB::POWI_PPCF128), 6591c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio Node, false, Hi); 6592c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio break; 659398ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSQRT: 659498ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSIN: 659598ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FCOS: { 659656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 659798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng switch(Node->getOpcode()) { 659856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 6599007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, 6600007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); 660156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 660256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 6603007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, 6604007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SIN_F80, RTLIB::SIN_PPCF128); 660556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 660656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 6607007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, 6608007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::COS_F80, RTLIB::COS_PPCF128); 660956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 661098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng default: assert(0 && "Unreachable!"); 661198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 6612460a14e09c2af630fc1e840dcb3e0f725663067bDuncan Sands Lo = ExpandLibCall(LC, Node, false, Hi); 661398ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng break; 661498ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 6615966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FABS: { 6616f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6617f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen SDOperand Tmp; 6618f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Tmp); 6619f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FABS, NVT, Tmp); 6620f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen // lo = hi==fabs(hi) ? lo : -lo; 6621f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::SELECT_CC, NVT, Hi, Tmp, 6622f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo, DAG.getNode(ISD::FNEG, NVT, Lo), 6623f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen DAG.getCondCode(ISD::SETEQ)); 6624f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6625f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6626966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 6627966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 6628966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 6629966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6630966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6631966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); 6632966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6633966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6634966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6635966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6636966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FNEG: { 6637f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6638f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Hi); 6639f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::FNEG, MVT::f64, Lo); 6640f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FNEG, MVT::f64, Hi); 6641f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6642f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6643966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 6644966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) 6645966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), VT); 6646966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6647966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6648966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); 6649966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6650966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6651966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6652966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6653912095becac923ff614d7b07728eb345ada67765Evan Cheng case ISD::FCOPYSIGN: { 6654912095becac923ff614d7b07728eb345ada67765Evan Cheng Lo = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 6655912095becac923ff614d7b07728eb345ada67765Evan Cheng if (getTypeAction(NVT) == Expand) 6656912095becac923ff614d7b07728eb345ada67765Evan Cheng ExpandOp(Lo, Lo, Hi); 6657912095becac923ff614d7b07728eb345ada67765Evan Cheng break; 6658912095becac923ff614d7b07728eb345ada67765Evan Cheng } 66597df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::SINT_TO_FP: 66607df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::UINT_TO_FP: { 66617df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 666283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT SrcVT = Node->getOperand(0).getValueType(); 6663cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen 6664cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen // Promote the operand if needed. Do this before checking for 6665cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen // ppcf128 so conversions of i16 and i8 work. 6666cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen if (getTypeAction(SrcVT) == Promote) { 6667cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen SDOperand Tmp = PromoteOp(Node->getOperand(0)); 6668cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen Tmp = isSigned 6669cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp, 6670cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen DAG.getValueType(SrcVT)) 6671cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen : DAG.getZeroExtendInReg(Tmp, SrcVT); 6672cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen Node = DAG.UpdateNodeOperands(Op, Tmp).Val; 6673cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen SrcVT = Node->getOperand(0).getValueType(); 6674cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen } 6675cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen 6676a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (VT == MVT::ppcf128 && SrcVT == MVT::i32) { 6677f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t zero = 0; 6678ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (isSigned) { 6679ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6680ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6681ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6682ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } else { 6683f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t TwoE32[] = { 0x41f0000000000000LL, 0 }; 6684ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6685ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6686ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6687ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 66886e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // X>=0 ? {(f64)x, 0} : {(f64)x, 0} + 2^32 6689ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 6690ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstant(0, MVT::i32), 6691ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 6692ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstantFP( 6693ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen APFloat(APInt(128, 2, TwoE32)), 6694ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen MVT::ppcf128)), 6695ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi, 6696ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getCondCode(ISD::SETLT)), 6697ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo, Hi); 6698ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 6699ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6700ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 67016e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen if (VT == MVT::ppcf128 && SrcVT == MVT::i64 && !isSigned) { 67026e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // si64->ppcf128 done by libcall, below 6703f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t TwoE64[] = { 0x43f0000000000000LL, 0 }; 67046e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SINT_TO_FP, MVT::ppcf128, Node->getOperand(0)), 67056e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 67066e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 67076e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // x>=0 ? (ppcf128)(i64)x : (ppcf128)(i64)x + 2^64 67086e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 67096e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstant(0, MVT::i64), 67106e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 67116e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstantFP( 67126e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen APFloat(APInt(128, 2, TwoE64)), 67136e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen MVT::ppcf128)), 67146e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi, 67156e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getCondCode(ISD::SETLT)), 67166e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 67176e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen break; 67186e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen } 67197df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng 6720a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT, 6721a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Node->getOperand(0)); 6722110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 67236ad2f930da0ebadb0e000397cea8384c650877bbEvan Cheng // float to i32 etc. can be 'expanded' to a single node. 6724110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng ExpandOp(Lo, Lo, Hi); 67257df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng break; 67267df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 672798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 67283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 672983397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 673083397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 673183397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 673283397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 673313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 673413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng // Don't legalize the high part if it is expanded to a single node. 673513acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Hi = LegalizeOp(Hi); 673683397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 673705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 673805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 673940030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))); 674005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 67413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 67423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 67437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// SplitVectorOp - Given an operand of vector type, break it down into 67447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// two smaller values, still of vector type. 6745c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 6746c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 674783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(Op.getValueType().isVector() && "Cannot split non-vector type!"); 6748c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 674983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumElements = Op.getValueType().getVectorNumElements(); 6750c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 67515db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 675283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewEltVT = Op.getValueType().getVectorElementType(); 67535db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 67545db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Lo = 1 << Log2_32(NumElements-1); 67555db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Hi = NumElements - NewNumElts_Lo; 67565db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 675783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewVT_Lo = MVT::getVectorVT(NewEltVT, NewNumElts_Lo); 675883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewVT_Hi = MVT::getVectorVT(NewEltVT, NewNumElts_Hi); 67595db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 6760c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 6761c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 6762c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 6763c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 6764c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 6765c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 6766c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 6767c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6768c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6769c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 6770e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 6771e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 677239833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); 6773e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 6774e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 6775daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner case ISD::UNDEF: 6776daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Lo = DAG.getNode(ISD::UNDEF, NewVT_Lo); 6777daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Hi = DAG.getNode(ISD::UNDEF, NewVT_Hi); 6778daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner break; 67797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_PAIR: 67807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 67817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 67827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 67839fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman case ISD::INSERT_VECTOR_ELT: { 67846867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman if (ConstantSDNode *Idx = dyn_cast<ConstantSDNode>(Node->getOperand(2))) { 67856867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SplitVectorOp(Node->getOperand(0), Lo, Hi); 67866867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman unsigned Index = Idx->getValue(); 67876867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand ScalarOp = Node->getOperand(1); 67886867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman if (Index < NewNumElts_Lo) 67896867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Lo = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Lo, Lo, ScalarOp, 67906867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman DAG.getIntPtrConstant(Index)); 67916867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman else 67926867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Hi = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Hi, Hi, ScalarOp, 67936867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman DAG.getIntPtrConstant(Index - NewNumElts_Lo)); 67946867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman break; 67956867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman } 67966867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SDOperand Tmp = PerformInsertVectorEltInMemory(Node->getOperand(0), 67976867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Node->getOperand(1), 67986867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman Node->getOperand(2)); 67996867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman SplitVectorOp(Tmp, Lo, Hi); 68009fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman break; 68019fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman } 68026c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner case ISD::VECTOR_SHUFFLE: { 68036c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Build the low part. 68046c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand Mask = Node->getOperand(2); 68056c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SmallVector<SDOperand, 8> Ops; 680683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT PtrVT = TLI.getPointerTy(); 68076c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 68086c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Insert all of the elements from the input that are needed. We use 68096c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // buildvector of extractelement here because the input vectors will have 68106c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // to be legalized, so this makes the code simpler. 68116c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = 0; i != NewNumElts_Lo; ++i) { 68125922f561c65968ef1865cc8434d191041e450602Nate Begeman SDOperand IdxNode = Mask.getOperand(i); 68135922f561c65968ef1865cc8434d191041e450602Nate Begeman if (IdxNode.getOpcode() == ISD::UNDEF) { 68145922f561c65968ef1865cc8434d191041e450602Nate Begeman Ops.push_back(DAG.getNode(ISD::UNDEF, NewEltVT)); 68155922f561c65968ef1865cc8434d191041e450602Nate Begeman continue; 68165922f561c65968ef1865cc8434d191041e450602Nate Begeman } 68175922f561c65968ef1865cc8434d191041e450602Nate Begeman unsigned Idx = cast<ConstantSDNode>(IdxNode)->getValue(); 68186c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand InVec = Node->getOperand(0); 68196c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 68206c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 68216c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 68226c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 68236c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 68246c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 68256c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 68266c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &Ops[0], Ops.size()); 68276c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.clear(); 68286c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 68296c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = NewNumElts_Lo; i != NumElements; ++i) { 68305922f561c65968ef1865cc8434d191041e450602Nate Begeman SDOperand IdxNode = Mask.getOperand(i); 68315922f561c65968ef1865cc8434d191041e450602Nate Begeman if (IdxNode.getOpcode() == ISD::UNDEF) { 68325922f561c65968ef1865cc8434d191041e450602Nate Begeman Ops.push_back(DAG.getNode(ISD::UNDEF, NewEltVT)); 68335922f561c65968ef1865cc8434d191041e450602Nate Begeman continue; 68345922f561c65968ef1865cc8434d191041e450602Nate Begeman } 68355922f561c65968ef1865cc8434d191041e450602Nate Begeman unsigned Idx = cast<ConstantSDNode>(IdxNode)->getValue(); 68366c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand InVec = Node->getOperand(0); 68376c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 68386c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 68396c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 68406c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 68416c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 68426c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 68436c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 68446c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &Ops[0], Ops.size()); 68456c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner break; 68466c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 68477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: { 6848bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 68495db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Node->op_begin()+NewNumElts_Lo); 68505db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &LoOps[0], LoOps.size()); 6851c7029805ef35ce9805931067b841e6af11db382eChris Lattner 68525db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumElts_Lo, 68537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 68545db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Hi, &HiOps[0], HiOps.size()); 6855c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6856c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 68577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: { 68585db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman // FIXME: Handle non-power-of-two vectors? 68597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NewNumSubvectors = Node->getNumOperands() / 2; 68607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NewNumSubvectors == 1) { 68617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 68627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 68637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 68647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 68657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_begin()+NewNumSubvectors); 68665db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Lo, &LoOps[0], LoOps.size()); 68676595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 68687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumSubvectors, 68697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 68705db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Hi, &HiOps[0], HiOps.size()); 68717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 68726595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 68736595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 6874c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman case ISD::SELECT: { 6875c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand Cond = Node->getOperand(0); 6876c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 6877c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand LL, LH, RL, RH; 6878c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(1), LL, LH); 6879c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(2), RL, RH); 6880c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 688183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (Cond.getValueType().isVector()) { 6882c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a vector merge. 6883c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand CL, CH; 6884c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Cond, CL, CH); 68855db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, CL, LL, RL); 68865db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, CH, LH, RH); 6887c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } else { 6888c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a simple select with vector operands. 68895db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, Cond, LL, RL); 68905db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, Cond, LH, RH); 6891c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 6892c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman break; 6893c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 6894b43e9c196542acc80c9e4643809661065710848fNate Begeman case ISD::VSETCC: { 6895b43e9c196542acc80c9e4643809661065710848fNate Begeman SDOperand LL, LH, RL, RH; 6896b43e9c196542acc80c9e4643809661065710848fNate Begeman SplitVectorOp(Node->getOperand(0), LL, LH); 6897b43e9c196542acc80c9e4643809661065710848fNate Begeman SplitVectorOp(Node->getOperand(1), RL, RH); 6898b43e9c196542acc80c9e4643809661065710848fNate Begeman Lo = DAG.getNode(ISD::VSETCC, NewVT_Lo, LL, RL, Node->getOperand(2)); 6899b43e9c196542acc80c9e4643809661065710848fNate Begeman Hi = DAG.getNode(ISD::VSETCC, NewVT_Hi, LH, RH, Node->getOperand(2)); 6900b43e9c196542acc80c9e4643809661065710848fNate Begeman break; 6901b43e9c196542acc80c9e4643809661065710848fNate Begeman } 69027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 69037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 69047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 69057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 69067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 69077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 69087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 69097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 69107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 6911826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 69127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 69137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 6914089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::XOR: 6915089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::UREM: 6916089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::SREM: 6917089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::FREM: { 6918c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 6919c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 6920c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 6921c7029805ef35ce9805931067b841e6af11db382eChris Lattner 69225db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, LL, RL); 69235db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, LH, RH); 6924c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6925c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6926826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOWI: { 6927826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand L, H; 6928826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6929826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 69305db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L, Node->getOperand(1)); 69315db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H, Node->getOperand(1)); 6932826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6933826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 6934826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTTZ: 6935826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTLZ: 6936826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTPOP: 6937826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FNEG: 6938826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FABS: 6939826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSQRT: 6940826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSIN: 6941b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FCOS: 6942b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_SINT: 6943b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_UINT: 6944b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::SINT_TO_FP: 6945b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::UINT_TO_FP: { 6946826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand L, H; 6947826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6948826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 69495db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L); 69505db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H); 6951826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6952826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 69537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 69547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 69557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LD->getChain(); 69567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LD->getBasePtr(); 69577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 69587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 69597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned Alignment = LD->getAlignment(); 69607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isVolatile = LD->isVolatile(); 69617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 69625db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getLoad(NewVT_Lo, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 696383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NewNumElts_Lo * NewEltVT.getSizeInBits()/8; 6964c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 69650bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 69667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 6967dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 69685db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getLoad(NewVT_Hi, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 6969c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6970c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 6971c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 6972c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 6973c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 6974c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6975c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 6976c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 6977c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6978c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 69797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: { 69807692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 69817692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 698210a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SDOperand InOp = Node->getOperand(0); 698383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (!InOp.getValueType().isVector() || 698483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands InOp.getValueType().getVectorNumElements() == 1) { 698510a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // The input is a scalar or single-element vector. 698610a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Lower to a store/load so that it can be split. 698710a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // FIXME: this could be improved probably. 698885dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand Ptr = DAG.CreateStackTemporary(InOp.getValueType()); 6989bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *FI = cast<FrameIndexSDNode>(Ptr.Val); 69907692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 6991786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand St = DAG.getStore(DAG.getEntryNode(), 699269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman InOp, Ptr, 69933069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 699469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FI->getIndex()); 699569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman InOp = DAG.getLoad(Op.getValueType(), St, Ptr, 69963069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 699769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FI->getIndex()); 69987692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 699910a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Split the vector and convert each of the pieces now. 700010a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SplitVectorOp(InOp, Lo, Hi); 70015db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BIT_CONVERT, NewVT_Lo, Lo); 70025db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BIT_CONVERT, NewVT_Hi, Hi); 700310a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman break; 70047692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 7005c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 7006c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7007c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 700840030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = 7009c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 701010a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman assert(isNew && "Value already split?!?"); 7011c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 7012c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7013c7029805ef35ce9805931067b841e6af11db382eChris Lattner 701489b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// ScalarizeVectorOp - Given an operand of single-element vector type 701589b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// (e.g. v1f32), convert it into the equivalent operation that returns a 701689b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// scalar (e.g. f32) value. 70177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ScalarizeVectorOp(SDOperand Op) { 701883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(Op.getValueType().isVector() && "Bad ScalarizeVectorOp invocation!"); 7019c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 702083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NewVT = Op.getValueType().getVectorElementType(); 702183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(Op.getValueType().getVectorNumElements() == 1); 7022c7029805ef35ce9805931067b841e6af11db382eChris Lattner 70237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // See if we already scalarized it. 70247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand>::iterator I = ScalarizedNodes.find(Op); 70257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (I != ScalarizedNodes.end()) return I->second; 7026c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7027c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 7028c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 70292332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 7030e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 703139833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); cerr << "\n"; 7032e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 70337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Unknown vector operation in ScalarizeVectorOp!"); 70347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 70357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 70367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 70377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 70387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 70397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 70407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 70417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 70427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 70437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SREM: 70447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UREM: 70457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FREM: 7046826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 70477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 70487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 70497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: 70507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 7051c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 70527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 70537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(1))); 7054c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 70557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FNEG: 70567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FABS: 70577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSQRT: 70587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSIN: 70597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FCOS: 70607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 70617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman NewVT, 70627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 70637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 70649e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman case ISD::FPOWI: 70659e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Result = DAG.getNode(Node->getOpcode(), 70669e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman NewVT, 70679e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 70689e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Node->getOperand(1)); 70699e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman break; 70707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 70717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 70727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LegalizeOp(LD->getChain()); // Legalize the chain. 70737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LegalizeOp(LD->getBasePtr()); // Legalize the pointer. 7074c7029805ef35ce9805931067b841e6af11db382eChris Lattner 70757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 70767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 70777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, 70787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LD->isVolatile(), LD->getAlignment()); 70797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 7080c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 7081c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 7082c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 7083c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 70847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: 70857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 70867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 70877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::INSERT_VECTOR_ELT: 70887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Returning the inserted scalar element. 70897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(1); 7090c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 70917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: 70926595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Node->getOperand(0).getValueType() == NewVT && 70936595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman "Concat of non-legal vectors not yet supported!"); 70946595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = Node->getOperand(0); 70956595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 70967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::VECTOR_SHUFFLE: { 70977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if the scalar is the LHS or RHS and return it. 70987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand EltNum = Node->getOperand(2).getOperand(0); 70997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (cast<ConstantSDNode>(EltNum)->getValue()) 71007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(1)); 71017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman else 71027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(0)); 71032332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 71047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 71057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 71067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 71076595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Result.getValueType() == NewVT); 71086595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 7109446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng case ISD::BIT_CONVERT: { 7110446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng SDOperand Op0 = Op.getOperand(0); 711183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (Op0.getValueType().getVectorNumElements() == 1) 7112446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng Op0 = ScalarizeVectorOp(Op0); 7113446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op0); 7114db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 7115446efddfcd655131bd0ceeacce9c1166e30ed479Evan Cheng } 71167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SELECT: 7117b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 71187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(1)), 71197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(2))); 7120b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 71210d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman case ISD::VSETCC: { 71220d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman SDOperand Op0 = ScalarizeVectorOp(Op.getOperand(0)); 71230d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman SDOperand Op1 = ScalarizeVectorOp(Op.getOperand(1)); 71240d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(Op0), Op0, Op1, 71250d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman Op.getOperand(2)); 71260d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman Result = DAG.getNode(ISD::SELECT, NewVT, Result, 71270d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman DAG.getConstant(-1ULL, NewVT), 71280d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman DAG.getConstant(0ULL, NewVT)); 71290d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman break; 71300d1704b955f9c7ae20e0b3a35b75aaab26e48cfdNate Begeman } 7131c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 7132c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7133c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 7134c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 71357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isNew = ScalarizedNodes.insert(std::make_pair(Op, Result)).second; 71367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(isNew && "Value already scalarized?"); 7137c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 7138c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 7139c7029805ef35ce9805931067b841e6af11db382eChris Lattner 71403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 71413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 71423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 71439c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 71445e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner if (ViewLegalizeDAGs) viewGraph(); 71455e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 71463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 71473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 7148456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 71493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 71503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7151