LegalizeDAG.cpp revision 707e0184233f27e0e9f9aee0309f2daab8cfe7f8
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. 89dc1adac582fa120861f18ae7221bfe1421fea59fRoman Levenstein DenseMap<SDOperandImpl, 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. 94dc1adac582fa120861f18ae7221bfe1421fea59fRoman Levenstein DenseMap<SDOperandImpl, 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. 99dc1adac582fa120861f18ae7221bfe1421fea59fRoman Levenstein DenseMap<SDOperandImpl, 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. 1313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizeAction getTypeAction(MVT::ValueType 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 /// 1373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isTypeLegal(MVT::ValueType 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); 158826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 159c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PromoteOp - Given an operation that produces a value in an invalid type, 160c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// promote it to compute the value into a larger type. The produced value 161c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// will have the correct bits for the low portion of the register, but no 162c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// guarantee is made about the top bits: it may be zero, sign-extended, or 163c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// garbage. 16403c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand PromoteOp(SDOperand O); 1653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 166c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandOp - Expand the specified SDOperand into its two component pieces 167c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, 168c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the LegalizeNodes map is filled in for any results that are not expanded, 169c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the ExpandedNodes map is filled in for any results that are expanded, and 170c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the Lo/Hi values are returned. This applies to integer types and Vector 171c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// types. 172c7029805ef35ce9805931067b841e6af11db382eChris Lattner void ExpandOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 173c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// SplitVectorOp - Given an operand of vector type, break it down into 1757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// two smaller values. 176c7029805ef35ce9805931067b841e6af11db382eChris Lattner void SplitVectorOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 177c7029805ef35ce9805931067b841e6af11db382eChris Lattner 17889b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// ScalarizeVectorOp - Given an operand of single-element vector type 17989b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// (e.g. v1f32), convert it into the equivalent operation that returns a 18089b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// scalar (e.g. f32) value. 1817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ScalarizeVectorOp(SDOperand O); 182c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1834352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// isShuffleLegal - Return true if a vector shuffle is legal with the 1844352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// specified mask and type. Targets can specify exactly which masks they 1854352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// support and the code generator is tasked with not creating illegal masks. 1864352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1874352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// Note that this will also return true for shuffles that are promoted to a 1884352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// different type. 1894352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1904352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// If this is a legal shuffle, this method returns the (possibly promoted) 1914352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// build_vector Mask. If it's not a legal shuffle, it returns null. 1924352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDNode *isShuffleLegal(MVT::ValueType VT, SDOperand Mask) const; 1934352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 194c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner bool LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 19500755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo); 1966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 197750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman void LegalizeSetCCOperands(SDOperand &LHS, SDOperand &RHS, SDOperand &CC); 198750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 19947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer SDOperand ExpandLibCall(const char *Name, SDNode *Node, bool isSigned, 20077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi); 20177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand ExpandIntToFP(bool isSigned, MVT::ValueType DestTy, 20277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Source); 203cad063f1a8ecda4fd556a733dc5eaa8a96acb80dChris Lattner 2041401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner SDOperand EmitStackConvert(SDOperand SrcOp, MVT::ValueType SlotVT, 2051401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner MVT::ValueType DestVT); 206ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand ExpandBUILD_VECTOR(SDNode *Node); 2074352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand ExpandSCALAR_TO_VECTOR(SDNode *Node); 2086269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand ExpandLegalINT_TO_FP(bool isSigned, 2096269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand LegalOp, 2106269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey MVT::ValueType DestVT); 2115a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman SDOperand PromoteLegalINT_TO_FP(SDOperand LegalOp, MVT::ValueType DestVT, 2125a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman bool isSigned); 2131618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner SDOperand PromoteLegalFP_TO_INT(SDOperand LegalOp, MVT::ValueType DestVT, 2141618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner bool isSigned); 21500b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 216456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBSWAP(SDOperand Op); 217456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBitCount(unsigned Opc, SDOperand Op); 218e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner bool ExpandShift(unsigned Opc, SDOperand Op, SDOperand Amt, 219e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi); 2205b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner void ExpandShiftParts(unsigned NodeOp, SDOperand Op, SDOperand Amt, 2215b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi); 222b9fa3bc8f39bf1e8df48b85eae4563032dd20bfcChris Lattner 2237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ExpandEXTRACT_SUBVECTOR(SDOperand Op); 2244aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand ExpandEXTRACT_VECTOR_ELT(SDOperand Op); 2253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 2263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// isVectorShuffleLegal - Return true if a vector shuffle is legal with the 2294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// specified mask and type. Targets can specify exactly which masks they 2304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// support and the code generator is tasked with not creating illegal masks. 2314352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// 2324352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// Note that this will also return true for shuffles that are promoted to a 2334352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// different type. 2344352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDNode *SelectionDAGLegalize::isShuffleLegal(MVT::ValueType VT, 2354352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 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! 2444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(ISD::VECTOR_SHUFFLE, VT); 2454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If we changed # elements, change the shuffle mask. 2474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned NumEltsGrowth = 2484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::getVectorNumElements(NVT) / MVT::getVectorNumElements(VT); 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) { 4547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType 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: 4607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(VT)) { 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); 4677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::getVectorNumElements(VT) == 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). 493004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng MVT::ValueType VT = CFP->getValueType(0); 494118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen ConstantFP *LLVMC = ConstantFP::get(MVT::getTypeForValueType(VT), 4959e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen CFP->getValueAPF()); 4969f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 4979e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen if (VT!=MVT::f64 && VT!=MVT::f32) 4989e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Invalid type expansion"); 4996cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman return DAG.getConstant(LLVMC->getValueAPF().convertToAPInt(), 500ef12057737229452c17983faa20857dba441ef05Evan Cheng (VT == MVT::f64) ? MVT::i64 : MVT::i32); 501279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 502279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 503ef12057737229452c17983faa20857dba441ef05Evan Cheng MVT::ValueType OrigVT = VT; 504ef12057737229452c17983faa20857dba441ef05Evan Cheng MVT::ValueType SVT = VT; 505ef12057737229452c17983faa20857dba441ef05Evan Cheng while (SVT != MVT::f32) { 506ef12057737229452c17983faa20857dba441ef05Evan Cheng SVT = (unsigned)SVT - 1; 507ef12057737229452c17983faa20857dba441ef05Evan Cheng if (CFP->isValueValidForType(SVT, CFP->getValueAPF()) && 508ef12057737229452c17983faa20857dba441ef05Evan Cheng // Only do this if the target has a native EXTLOAD instruction from 509ef12057737229452c17983faa20857dba441ef05Evan Cheng // smaller type. 5106fd599fa6916bd9438dbea7994cf2437bdf4ab8cEvan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, SVT) && 511aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner TLI.ShouldShrinkFPConstant(OrigVT)) { 512ef12057737229452c17983faa20857dba441ef05Evan Cheng const Type *SType = MVT::getTypeForValueType(SVT); 513ef12057737229452c17983faa20857dba441ef05Evan Cheng LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC, SType)); 514ef12057737229452c17983faa20857dba441ef05Evan Cheng VT = SVT; 515ef12057737229452c17983faa20857dba441ef05Evan Cheng Extend = true; 516ef12057737229452c17983faa20857dba441ef05Evan Cheng } 517004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 518004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 519004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 520ef12057737229452c17983faa20857dba441ef05Evan Cheng if (Extend) 521ef12057737229452c17983faa20857dba441ef05Evan Cheng return DAG.getExtLoad(ISD::EXTLOAD, OrigVT, DAG.getEntryNode(), 5223069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman CPIdx, PseudoSourceValue::getConstantPool(), 523ef12057737229452c17983faa20857dba441ef05Evan Cheng 0, VT); 524ef12057737229452c17983faa20857dba441ef05Evan Cheng return DAG.getLoad(OrigVT, DAG.getEntryNode(), CPIdx, 525ef12057737229452c17983faa20857dba441ef05Evan Cheng PseudoSourceValue::getConstantPool(), 0); 526004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng} 527004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 5286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 529912095becac923ff614d7b07728eb345ada67765Evan Cheng/// ExpandFCOPYSIGNToBitwiseOps - Expands fcopysign to a series of bitwise 530912095becac923ff614d7b07728eb345ada67765Evan Cheng/// operations. 531912095becac923ff614d7b07728eb345ada67765Evan Chengstatic 532912095becac923ff614d7b07728eb345ada67765Evan ChengSDOperand ExpandFCOPYSIGNToBitwiseOps(SDNode *Node, MVT::ValueType NVT, 533912095becac923ff614d7b07728eb345ada67765Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 534068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng MVT::ValueType VT = Node->getValueType(0); 535912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcVT = Node->getOperand(1).getValueType(); 5367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert((SrcVT == MVT::f32 || SrcVT == MVT::f64) && 5377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "fcopysign expansion only supported for f32 and f64"); 538912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcNVT = (SrcVT == MVT::f64) ? MVT::i64 : MVT::i32; 539068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 540912095becac923ff614d7b07728eb345ada67765Evan Cheng // First get the sign bit of second operand. 541068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask1 = (SrcVT == MVT::f64) 542912095becac923ff614d7b07728eb345ada67765Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT) 543912095becac923ff614d7b07728eb345ada67765Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT); 544068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1); 545912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand SignBit= DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Node->getOperand(1)); 546068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SignBit = DAG.getNode(ISD::AND, SrcNVT, SignBit, Mask1); 547912095becac923ff614d7b07728eb345ada67765Evan Cheng // Shift right or sign-extend it if the two operands have different types. 548912095becac923ff614d7b07728eb345ada67765Evan Cheng int SizeDiff = MVT::getSizeInBits(SrcNVT) - MVT::getSizeInBits(NVT); 549912095becac923ff614d7b07728eb345ada67765Evan Cheng if (SizeDiff > 0) { 550912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SRL, SrcNVT, SignBit, 551912095becac923ff614d7b07728eb345ada67765Evan Cheng DAG.getConstant(SizeDiff, TLI.getShiftAmountTy())); 552912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::TRUNCATE, NVT, SignBit); 553912095becac923ff614d7b07728eb345ada67765Evan Cheng } else if (SizeDiff < 0) 554912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SIGN_EXTEND, NVT, SignBit); 555068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 556068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Clear the sign bit of first operand. 557068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask2 = (VT == MVT::f64) 558068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 559068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 560068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask2); 561912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 562068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Result = DAG.getNode(ISD::AND, NVT, Result, Mask2); 563068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 564068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Or the value with the sign bit. 565912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::OR, NVT, Result, SignBit); 566912095becac923ff614d7b07728eb345ada67765Evan Cheng return Result; 567912095becac923ff614d7b07728eb345ada67765Evan Cheng} 568912095becac923ff614d7b07728eb345ada67765Evan Cheng 569f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedStore - Expands an unaligned store to 2 half-size stores. 570f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 571f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedStore(StoreSDNode *ST, SelectionDAG &DAG, 572f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 573f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = ST->getChain(); 574f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = ST->getBasePtr(); 575f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Val = ST->getValue(); 576f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType VT = Val.getValueType(); 577907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int Alignment = ST->getAlignment(); 578907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int SVOffset = ST->getSrcValueOffset(); 5798155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen if (MVT::isFloatingPoint(ST->getMemoryVT()) || 5808155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen MVT::isVector(ST->getMemoryVT())) { 581907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a bitconvert of the value to the integer type of the 582907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // same size, then a (misaligned) int store. 583907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType intVT; 5843c8b59c546b5d56b2cae74da55e26eb994ed36bfDale Johannesen if (MVT::is128BitVector(VT) || VT == MVT::ppcf128 || VT == MVT::f128) 5858155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen intVT = MVT::i128; 5863c8b59c546b5d56b2cae74da55e26eb994ed36bfDale Johannesen else if (MVT::is64BitVector(VT) || VT==MVT::f64) 587907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 588907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else if (VT==MVT::f32) 589907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 590907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 591cd9f1747ab72f9863924fbdf43493d9fa6256719Dale Johannesen assert(0 && "Unaligned store of unsupported type"); 592907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 593907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, intVT, Val); 594907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getStore(Chain, Result, Ptr, ST->getSrcValue(), 595907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, ST->isVolatile(), Alignment); 596907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 597b625f2f8960de32bc973092aaee8ac62863006feDan Gohman assert(MVT::isInteger(ST->getMemoryVT()) && 5988155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen !MVT::isVector(ST->getMemoryVT()) && 599907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen "Unaligned store of unknown type."); 600f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Get the half-size VT 601b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType NewStoredVT = ST->getMemoryVT() - 1; 602f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int NumBits = MVT::getSizeInBits(NewStoredVT); 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(); 632f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType VT = LD->getValueType(0); 633b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType LoadedVT = LD->getMemoryVT(); 6348155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen if (MVT::isFloatingPoint(VT) || MVT::isVector(VT)) { 635907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a (misaligned) integer load of the same size, 6368155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // then bitconvert to floating point or vector. 637907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType intVT; 6383c8b59c546b5d56b2cae74da55e26eb994ed36bfDale Johannesen if (MVT::is128BitVector(LoadedVT) || 6393c8b59c546b5d56b2cae74da55e26eb994ed36bfDale Johannesen LoadedVT == MVT::ppcf128 || LoadedVT == MVT::f128) 6408155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen intVT = MVT::i128; 6413c8b59c546b5d56b2cae74da55e26eb994ed36bfDale Johannesen else if (MVT::is64BitVector(LoadedVT) || 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); 6528155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen if (MVT::isFloatingPoint(VT) && 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 } 6598155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen assert(MVT::isInteger(LoadedVT) && !MVT::isVector(LoadedVT) && 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. 664e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned NumBits = MVT::getSizeInBits(LoadedVT); 665e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner MVT::ValueType NewLoadedVT; 6668155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen NewLoadedVT = MVT::getIntegerType(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) { 714826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType 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!"); 719826695281344e3a4c4d44d73dd155107aafd689bDan Gohman unsigned NE = MVT::getVectorNumElements(VT); 720826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 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); 727826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType OperandVT = Operand.getValueType(); 728826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(OperandVT)) { 729826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // A vector operand; extract a single element. 730826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType OperandEltVT = MVT::getVectorElementType(OperandVT); 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. 748007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sandsstatic RTLIB::Libcall GetFPLibCall(MVT::ValueType 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 761a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// LegalizeOp - We know that the specified value has a legal type, and 762a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// that its operands are legal. Now ensure that the operation itself 763a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// is legal, recursively ensuring that the operands' operations remain 764a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// legal. 7653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 76609ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) // Allow illegal target nodes. 76709ec1b058331aadb29a348091611d23892b5c492Chris Lattner return Op; 76809ec1b058331aadb29a348091611d23892b5c492Chris Lattner 769c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 770e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 77145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 772e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 7733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 774e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 77545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 77645982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 777c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 778c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 7793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 780c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 78103c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 7823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 78545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 78645982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 787dc1adac582fa120861f18ae7221bfe1421fea59fRoman Levenstein DenseMap<SDOperandImpl, SDOperand>::iterator I = LegalizedNodes.find(Op); 788e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 7893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7909373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 7913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 792456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 793456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 7943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 795948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 796948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 797948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 798948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 799948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 80037efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::TargetJumpTable: 801948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 8023181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 803948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 804948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 805b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::TargetGlobalTLSAddress: 806948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 807948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 808948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 80969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case ISD::MEMOPERAND: 810948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::STRING: 811948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 812276dcbdc8db6614cfd5004dc7dc35e437ddf9c58Duncan Sands case ISD::ARG_FLAGS: 813948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 814a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 815948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 816948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 8173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 818d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 819d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 820d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 821f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 822c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 823d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 824c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner 825f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); 826d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 827d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 828d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 829d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 830d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 831d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 832e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 83339833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 834e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 8353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 8363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 8370d3b67809ccab229a03db8c1bede852fb89eb081Lauro Ramos Venancio case ISD::GLOBAL_OFFSET_TABLE: 8383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 839b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::GlobalTLSAddress: 84003c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 84137efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::ConstantPool: 84237efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::JumpTable: // Nothing to do. 8430c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 8440c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 845948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 846948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 847948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 848948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 8490c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 8500c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 8510c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 8523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 853bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::FRAMEADDR: 854bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::RETURNADDR: 855bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // The only option for these nodes is to custom lower them. If the target 856bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // does not custom lower them, then return zero. 857bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Tmp1 = TLI.LowerOperation(Op, DAG); 858bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman if (Tmp1.Val) 859bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = Tmp1; 860bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman else 861bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = DAG.getConstant(0, TLI.getPointerTy()); 862bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman break; 863055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov case ISD::FRAME_TO_ARGS_OFFSET: { 864066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 865066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 866066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov default: assert(0 && "This action is not supported yet!"); 867066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Custom: 868066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 869066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov if (Result.Val) break; 870066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov // Fall Thru 871066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Legal: 872066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = DAG.getConstant(0, VT); 873066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 874066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov } 875055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov } 876066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 8772bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case ISD::EXCEPTIONADDR: { 8782bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 8792bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey MVT::ValueType VT = Node->getValueType(0); 8802bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 8812bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey default: assert(0 && "This action is not supported yet!"); 8822bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Expand: { 8838782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionAddressRegister(); 884b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Result = DAG.getCopyFromReg(Tmp1, Reg, VT); 8852bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 8862bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8872bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Custom: 8882bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = TLI.LowerOperation(Op, DAG); 8892bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey if (Result.Val) break; 8902bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey // Fall Thru 891eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 892eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp1 }; 893eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 894b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Ops, 2); 8958782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 8968782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 8978782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 898eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 899b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands if (Result.Val->getNumValues() == 1) break; 900b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 901b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands assert(Result.Val->getNumValues() == 2 && 902b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands "Cannot return more than two values!"); 903b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 904b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // Since we produced two values, make sure to remember that we 905b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // legalized both of them. 906b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp1 = LegalizeOp(Result); 907b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); 908b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(0), Tmp1); 909b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(1), Tmp2); 910b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands return Op.ResNo ? Tmp2 : Tmp1; 9118782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case ISD::EHSELECTION: { 9128782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 9138782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); 9148782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey MVT::ValueType VT = Node->getValueType(0); 9158782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 9168782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey default: assert(0 && "This action is not supported yet!"); 9178782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Expand: { 9188782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionSelectorRegister(); 919b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Result = DAG.getCopyFromReg(Tmp2, Reg, VT); 9208782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 9218782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 9228782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Custom: 9238782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = TLI.LowerOperation(Op, DAG); 9248782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey if (Result.Val) break; 9258782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey // Fall Thru 926eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 927eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp2 }; 928eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 929b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Ops, 2); 9302bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 9312bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 9322bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 933eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 934b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands if (Result.Val->getNumValues() == 1) break; 935b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 936b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands assert(Result.Val->getNumValues() == 2 && 937b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands "Cannot return more than two values!"); 938b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 939b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // Since we produced two values, make sure to remember that we 940b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // legalized both of them. 941b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp1 = LegalizeOp(Result); 942b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); 943b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(0), Tmp1); 944b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(1), Tmp2); 945b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands return Op.ResNo ? Tmp2 : Tmp1; 9466d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky case ISD::EH_RETURN: { 9472365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 9482365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // The only "good" option for this node is to custom lower it. 9492365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 9502365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov default: assert(0 && "This action is not supported at all!"); 9512365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Custom: 9522365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 9532365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov if (Result.Val) break; 9542365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Fall Thru 9552365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Legal: 9562365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Target does not know, how to lower this, lower to noop 9572365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = LegalizeOp(Node->getOperand(0)); 9582365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 9592365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov } 9606d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky } 9612365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 96208951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 96308951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 96408951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 965c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 96608951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 967308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 968c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 969456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 970456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 97169a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 97269a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 9737310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 974f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 975c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 9767310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 977f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 978c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 979f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 980c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 981c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 982c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 983c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 9847310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 9857310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 98613c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 98713c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 98813c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 98913c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 99013c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 991fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 992fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman MVT::ValueType VT = Op.getValueType(); 993fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 994ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 995ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 996fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman if (MVT::isInteger(VT)) 997fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 998fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else if (MVT::isFloatingPoint(VT)) 999f41db2136fe50e1a92aabfcb3ba1ec1f70f5f0d5Dale Johannesen Result = DAG.getConstantFP(APFloat(APInt(MVT::getSizeInBits(VT), 0)), 1000f41db2136fe50e1a92aabfcb3ba1ec1f70f5f0d5Dale Johannesen VT); 1001fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 1002fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 1003fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 1004ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 1005fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 1006fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 1007fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 1008fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 1009d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 101048b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_W_CHAIN: 101148b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_WO_CHAIN: 101248b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_VOID: { 1013f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 1014d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1015d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1016f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 101710d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner 101810d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner // Allow the target to custom lower its intrinsics if it wants to. 101948b61a729df6576c8833a83893d4086bddff69a5Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == 102010d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner TargetLowering::Custom) { 102110d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 102210d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner if (Tmp3.Val) Result = Tmp3; 102313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 102413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 102513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner if (Result.Val->getNumValues() == 1) break; 102613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 102713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 102813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner assert(Result.Val->getNumValues() == 2 && 102913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner "Cannot return more than two values!"); 103013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 103113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Since loads produce two values, make sure to remember that we 103213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // legalized both of them. 103313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 103413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 103513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner return Result.getValue(Op.ResNo); 1036d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 103736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 103836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 103936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 104036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 104136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 104236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 104336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 104436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 1045f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 104644c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey MachineModuleInfo *MMI = DAG.getMachineModuleInfo(); 1047abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 10481ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey bool useLABEL = TLI.isOperationLegal(ISD::LABEL, MVT::Other); 1049abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 105044c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey if (MMI && (useDEBUG_LOC || useLABEL)) { 1051abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 1052e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 1053abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 1054e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 105544c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned SrcFile = MMI->RecordSource(DirName, FName); 1056abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 1057bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 1058abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 1059abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 1060abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 1061abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 1062abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 1063abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 1064abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 1065abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 1066bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, &Ops[0], Ops.size()); 1067abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 1068d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 1069d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 1070a647c92ec2b3c91e1e6de25cc5c7860912c7626bEvan Cheng unsigned ID = MMI->RecordSourceLine(Line, Col, SrcFile); 1071abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 1072bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng Ops.push_back(DAG.getConstant(0, MVT::i32)); // a debug label 1073bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng Result = DAG.getNode(ISD::LABEL, MVT::Other, &Ops[0], Ops.size()); 1074abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1075e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 1076e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 1077e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 107836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1079e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 108036ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 10819ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 10829ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 1083f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 108436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 10859ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 10869ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 10879ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 10889ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 10899ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 10909ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 10919ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 10929ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 109336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 109436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 1095f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 109636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 109736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 109836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 109936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1100a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng 1101a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng case ISD::DECLARE: 1102a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng assert(Node->getNumOperands() == 3 && "Invalid DECLARE node!"); 1103a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng switch (TLI.getOperationAction(ISD::DECLARE, MVT::Other)) { 1104a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng default: assert(0 && "This action is not supported yet!"); 1105a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng case TargetLowering::Legal: 1106a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1107a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the address. 1108a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the variable. 1109a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1110a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng break; 1111e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner case TargetLowering::Expand: 1112e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 1113e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner break; 1114a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng } 1115a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng break; 1116f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 1117f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 1118abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 1119f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 1120f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 1121abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1122abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1123abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 1124abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 1125abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 1126c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 1127abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1128abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1129abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1130abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 11311ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey case ISD::LABEL: 1132bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng assert(Node->getNumOperands() == 3 && "Invalid LABEL node!"); 11331ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey switch (TLI.getOperationAction(ISD::LABEL, MVT::Other)) { 1134abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 1135abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1136abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1137abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 1138bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the "flavor" operand. 1139bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1140f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 1141a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner case TargetLowering::Expand: 1142a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner Result = LegalizeOp(Node->getOperand(0)); 1143a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner break; 1144f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 1145551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 114636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 114727b7db549e4c5bff4579d209304de5628513edebEvan Cheng case ISD::PREFETCH: 114827b7db549e4c5bff4579d209304de5628513edebEvan Cheng assert(Node->getNumOperands() == 4 && "Invalid Prefetch node!"); 114927b7db549e4c5bff4579d209304de5628513edebEvan Cheng switch (TLI.getOperationAction(ISD::PREFETCH, MVT::Other)) { 115027b7db549e4c5bff4579d209304de5628513edebEvan Cheng default: assert(0 && "This action is not supported yet!"); 115127b7db549e4c5bff4579d209304de5628513edebEvan Cheng case TargetLowering::Legal: 115227b7db549e4c5bff4579d209304de5628513edebEvan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 115327b7db549e4c5bff4579d209304de5628513edebEvan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the address. 115427b7db549e4c5bff4579d209304de5628513edebEvan Cheng Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the rw specifier. 115527b7db549e4c5bff4579d209304de5628513edebEvan Cheng Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize locality specifier. 115627b7db549e4c5bff4579d209304de5628513edebEvan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 115727b7db549e4c5bff4579d209304de5628513edebEvan Cheng break; 115827b7db549e4c5bff4579d209304de5628513edebEvan Cheng case TargetLowering::Expand: 115927b7db549e4c5bff4579d209304de5628513edebEvan Cheng // It's a noop. 116027b7db549e4c5bff4579d209304de5628513edebEvan Cheng Result = LegalizeOp(Node->getOperand(0)); 116127b7db549e4c5bff4579d209304de5628513edebEvan Cheng break; 116227b7db549e4c5bff4579d209304de5628513edebEvan Cheng } 116327b7db549e4c5bff4579d209304de5628513edebEvan Cheng break; 116427b7db549e4c5bff4579d209304de5628513edebEvan Cheng 116522c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth case ISD::MEMBARRIER: { 116622c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth assert(Node->getNumOperands() == 6 && "Invalid MemBarrier node!"); 1167d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth switch (TLI.getOperationAction(ISD::MEMBARRIER, MVT::Other)) { 1168d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth default: assert(0 && "This action is not supported yet!"); 1169d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth case TargetLowering::Legal: { 1170d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth SDOperand Ops[6]; 1171d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Ops[0] = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1172e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands for (int x = 1; x < 6; ++x) { 1173e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands Ops[x] = Node->getOperand(x); 1174e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands if (!isTypeLegal(Ops[x].getValueType())) 1175e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands Ops[x] = PromoteOp(Ops[x]); 1176e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands } 1177d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Result = DAG.UpdateNodeOperands(Result, &Ops[0], 6); 1178d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth break; 1179d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth } 1180d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth case TargetLowering::Expand: 1181d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth //There is no libgcc call for this op 1182d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Result = Node->getOperand(0); // Noop 1183d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth break; 1184d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth } 118522c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth break; 118622c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth } 118722c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth 1188ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_LCS: 1189ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_LAS: 1190ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_SWAP: { 1191ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth assert(((Node->getNumOperands() == 4 && Node->getOpcode() == ISD::ATOMIC_LCS) || 1192ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth (Node->getNumOperands() == 3 && Node->getOpcode() == ISD::ATOMIC_LAS) || 1193ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth (Node->getNumOperands() == 3 && Node->getOpcode() == ISD::ATOMIC_SWAP)) && 119426ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth "Invalid Atomic node!"); 1195ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth int num = Node->getOpcode() == ISD::ATOMIC_LCS ? 4 : 3; 119626ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth SDOperand Ops[4]; 119726ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth for (int x = 0; x < num; ++x) 119826ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth Ops[x] = LegalizeOp(Node->getOperand(x)); 119926ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth Result = DAG.UpdateNodeOperands(Result, &Ops[0], num); 120026ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth 120126ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 1202ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth default: assert(0 && "This action is not supported yet!"); 120326ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth case TargetLowering::Custom: 120426ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth Result = TLI.LowerOperation(Result, DAG); 120526ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth break; 120626ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth case TargetLowering::Legal: 1207ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 1208ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 120926ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 121026ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 121126ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth return Result.getValue(Op.ResNo); 1212ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 1213ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth 1214c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel case ISD::Constant: { 1215c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel ConstantSDNode *CN = cast<ConstantSDNode>(Node); 1216c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel unsigned opAction = 1217c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel TLI.getOperationAction(ISD::Constant, CN->getValueType(0)); 1218c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel 12193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 12203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 12213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1222c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (opAction == TargetLowering::Custom) { 1223c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 1224c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (Tmp1.Val) 1225c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Result = Tmp1; 1226c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 12273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1228c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 12293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 12303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 12313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 12323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 12333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 12343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 12353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 12363181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 12373181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 1238e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman case TargetLowering::Legal: 1239e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 12403181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 12413181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 12423181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 12433181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 12443181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 12453181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 12463181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 1247e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman case TargetLowering::Expand: { 1248e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman // Check to see if this FP immediate is already legal. 1249e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman bool isLegal = false; 1250e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 1251e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman E = TLI.legal_fpimm_end(); I != E; ++I) { 1252e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman if (CFP->isExactlyValue(*I)) { 1253e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman isLegal = true; 1254e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 1255e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 1256e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 1257e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman // If this is a legal constant, turn it into a TargetConstantFP node. 1258e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman if (isLegal) 1259e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 1260279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Result = ExpandConstantFP(CFP, true, DAG, TLI); 12613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1262e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 12633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 12643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1265040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 1266040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 1267c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1268c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1269c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1270c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 1271c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1272c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1273c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 1274c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1275040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 1276f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 1277040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 1278c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1279c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1280f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1281a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 1282a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 1283fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 1284fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 1285f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 1286fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 1287b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 1288b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val && "Target didn't custom lower this node!"); 12890ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen // A call within a calling sequence must be legalized to something 12900ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen // other than the normal CALLSEQ_END. Violating this gets Legalize 12910ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen // into an infinite loop. 12920ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen assert ((!IsLegalizingCall || 12930ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen Node->getOpcode() != ISD::CALL || 12940ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen Tmp3.Val->getOpcode() != ISD::CALLSEQ_END) && 12950ea0356dff38dfd0420b8c0a2fdf2fae7898c024Dale Johannesen "Nested CALLSEQ_START..CALLSEQ_END not supported."); 12960f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 12970f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // The number of incoming and outgoing values should match; unless the final 12980f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // outgoing value is a flag. 12990f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling assert((Tmp3.Val->getNumValues() == Result.Val->getNumValues() || 13000f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling (Tmp3.Val->getNumValues() == Result.Val->getNumValues() + 1 && 13010f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Tmp3.Val->getValueType(Tmp3.Val->getNumValues() - 1) == 13020f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling MVT::Flag)) && 1303b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 1304e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 1305f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 1306e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 1307b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner for (unsigned i = 0, e = Tmp3.Val->getNumValues(); i != e; ++i) { 13080f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling if (Tmp3.Val->getValueType(i) == MVT::Flag) 13090f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling continue; 1310b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 1311e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner if (Op.ResNo == i) 1312e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 1313e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner AddLegalizedOperand(SDOperand(Node, i), Tmp1); 1314e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 1315e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 1316557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::EXTRACT_SUBREG: { 1317557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1318557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(1)); 1319557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1320557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1321557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1322557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1323557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1324557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::INSERT_SUBREG: { 1325557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1326557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = LegalizeOp(Node->getOperand(1)); 1327557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(2)); 1328557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1329557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp3 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1330557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1331557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1332557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1333b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 1334b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 13352332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 13362332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 13372332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 13382332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 13392332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 13402332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13412332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 13422332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 1343ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 1344ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 1345b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 13462332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 13472332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13482332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 13492332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 13502332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 13510325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 13520325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // The type of the value to insert may not be legal, even though the vector 13530325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // type is legal. Legalize/Promote accordingly. We do not handle Expand 13540325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // here. 13550325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 13560325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman default: assert(0 && "Cannot expand insert element operand"); 13570325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); break; 13580325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman case Promote: Tmp2 = PromoteOp(Node->getOperand(1)); break; 13590325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman } 13602332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 13612332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 13622332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 13632332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 13642332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 13652332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 13662332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13672332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 13682281a991414f681c482157265461b29a923ef620Nate Begeman Tmp4 = TLI.LowerOperation(Result, DAG); 13692281a991414f681c482157265461b29a923ef620Nate Begeman if (Tmp4.Val) { 13702281a991414f681c482157265461b29a923ef620Nate Begeman Result = Tmp4; 13712332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13722332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 13732332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 13742332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 13758d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 13768d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 13778d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 13780325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // SCALAR_TO_VECTOR requires that the type of the value being inserted 13790325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // match the element type of the vector being created. 13800325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman if (Tmp2.getValueType() == 13810325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman MVT::getVectorElementType(Op.getValueType())) { 13820325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman SDOperand ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 13830325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Tmp1.getValueType(), Tmp2); 13840325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 13850325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman unsigned NumElts = MVT::getVectorNumElements(Tmp1.getValueType()); 13860325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman MVT::ValueType ShufMaskVT = MVT::getIntVectorWithNumElements(NumElts); 13870325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman MVT::ValueType ShufMaskEltVT = MVT::getVectorElementType(ShufMaskVT); 13880325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 13890325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // We generate a shuffle of InVec and ScVec, so the shuffle mask 13900325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // should be 0,1,2,3,4,5... with the appropriate element replaced with 13910325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // elt 0 of the RHS. 13920325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman SmallVector<SDOperand, 8> ShufOps; 13930325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman for (unsigned i = 0; i != NumElts; ++i) { 13940325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman if (i != InsertPos->getValue()) 13950325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 13960325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman else 13970325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 13980325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman } 13990325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman SDOperand ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 14000325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman &ShufOps[0], ShufOps.size()); 14010325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 14020325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 14030325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Tmp1, ScVec, ShufMask); 14040325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Result = LegalizeOp(Result); 14050325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman break; 14068d5a894501b7546dee94df03118b90126c420820Chris Lattner } 14078d5a894501b7546dee94df03118b90126c420820Chris Lattner } 14088d5a894501b7546dee94df03118b90126c420820Chris Lattner 14092332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // If the target doesn't support this, we have to spill the input vector 14102332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // to a temporary stack slot, update the element, then reload it. This is 14112332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // badness. We could also load the value into a vector register (either 14122332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // with a "move to register" or "extload into register" instruction, then 14132332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // permute it into place, if the idx is a constant and if the idx is 14142332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // supported by the target. 1415f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType VT = Tmp1.getValueType(); 14160325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 1417f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType IdxVT = Tmp3.getValueType(); 1418f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 141985dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(VT); 142069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 1421bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(StackPtr.Val); 142269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman int SPFI = StackPtrFI->getIndex(); 142369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 1424eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the vector. 142569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Tmp1, StackPtr, 14263069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 142769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SPFI); 1428eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng 1429eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Truncate or zero extend offset to target pointer type. 1430f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned CastOpc = (IdxVT > PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 1431f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); 1432eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Add the offset to the index. 1433f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned EltSize = MVT::getSizeInBits(EltVT)/8; 1434f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 1435f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); 1436eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the scalar value. 14370325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Ch = DAG.getTruncStore(Ch, Tmp2, StackPtr2, 14380325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman PseudoSourceValue::getFixedStack(), SPFI, EltVT); 1439eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Load the updated vector. 144069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Result = DAG.getLoad(VT, Ch, StackPtr, 14413069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), SPFI); 14422332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14432332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14442332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14452332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 1446ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 14474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 14484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 14494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 14504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 14514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 1452ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 1453ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1454ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 1455ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 1456ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 1457ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 1458ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 14594d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 14604d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 14614d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 14624d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 14634d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 14644d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 14654d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 14664352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 14674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 1468ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 1469ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1470ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 147187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 147287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 147387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 147487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 147587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 147687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 14774352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 14784352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 14794352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 14804352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 14814352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 14824352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 14834352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 148418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 148518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Tmp3.Val) { 148618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 148718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 148818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 148918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 149018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 149118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType VT = Node->getValueType(0); 149251eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 149318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 149418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Mask = Node->getOperand(2); 149518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 1496bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand,8> Ops; 149718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 149818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Arg = Mask.getOperand(i); 149918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 150018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 150118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 150218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 150318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned Idx = cast<ConstantSDNode>(Arg)->getValue(); 150418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 150518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 150618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 150718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 150818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 150918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 151018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 151118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1512bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 15134352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 151418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 15154352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 15164352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 15174352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType OVT = Node->getValueType(0); 15184352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 15194352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 15204352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 15214352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 15224352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 15234352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 15244352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 15254352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp3 = SDOperand(isShuffleLegal(OVT, Node->getOperand(2)), 0); 15264352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(Tmp3.Val && "Shuffle not legal?"); 15274352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 15284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 15294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 15304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 153187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 153287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1533384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1534384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 15357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 1536384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1537384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 15387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_VECTOR_ELT(Result); 1539384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1540384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 15417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 15427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 15437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); 15447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 15457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_SUBVECTOR(Result); 15466595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 15476595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 15486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 15496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 15506831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 15526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 15536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 155400755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner {SmallPtrSet<SDNode*, 32> NodesLeadingTo; 15556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1556c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node, 1557c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1558c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 15596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 15616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 15626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 15656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1566c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1567b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1568b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1569b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 15706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 15726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1573f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 15746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1575f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 15766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 15776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 15794b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 15804b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 15814b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 15824b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 15836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 15846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 15856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 15866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 15876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 15886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InCallSEQ = LastCALLSEQ_END; 15896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 15906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 15916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 15926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 15946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 15956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 15966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 15976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 159816cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 15996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 16006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 16016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 16026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 1603dc1adac582fa120861f18ae7221bfe1421fea59fRoman Levenstein DenseMap<SDOperandImpl, SDOperand>::iterator I = LegalizedNodes.find(Op); 16046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 16056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 16066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 16076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 16086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 16096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 16106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 16113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 161270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 161370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 161470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 161570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1616f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 161770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1618f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 161970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 162070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 162170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 162270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 162370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1624f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 162570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 162670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1627f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 162870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 16296a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 16304b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 16316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 16326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 16334b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 16344b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 16354b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 16364b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 16374b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 16384b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1639a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 164061bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1641fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1642fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1643fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1644c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1645fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1646c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 16475f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 164861bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1649a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1650903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1651903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1652903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1653903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1654903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 16550f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 16560f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // Chain the dynamic stack allocation so that it doesn't modify the stack 16570f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // pointer when other instructions are using the stack. 16580f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Chain = DAG.getCALLSEQ_START(Chain, 16590f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy())); 16600f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1661903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 166261bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, VT); 166361bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Chain = SP.getValue(1); 166461bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned Align = cast<ConstantSDNode>(Tmp3)->getValue(); 166561bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned StackAlign = 166661bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng TLI.getTargetMachine().getFrameInfo()->getStackAlignment(); 166761bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng if (Align > StackAlign) 16683e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng SP = DAG.getNode(ISD::AND, VT, SP, 16693e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng DAG.getConstant(-(uint64_t)Align, VT)); 167061bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Tmp1 = DAG.getNode(ISD::SUB, VT, SP, Size); // Value 16710f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Chain = DAG.getCopyToReg(Chain, SPReg, Tmp1); // Output chain 16720f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 16730f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Tmp2 = 16740f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getCALLSEQ_END(Chain, 16750f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy()), 16760f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy()), 16770f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling SDOperand()); 16780f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1679c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1680c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1681903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1682903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1683903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 16845f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 16855f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1686c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1687c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1688a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1689903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1690a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1691903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1692a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1693903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1694903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1695c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1696c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1697903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1698a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 169925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1700f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 170125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 170225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 170325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 170425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 170525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[0]); 170625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 170725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 170825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 170925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 171025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 171125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getValue() >> 3; 171225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 171325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[i]); 171425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 171525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 171625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 171725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 171825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 171925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 172025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 172125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 172225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 172325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 172425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 172525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1726ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 172725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1728f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1729ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1730ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1731c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1732ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1733ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 173425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1735c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1736c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 17386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 17396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 17406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 17416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1742c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1743c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 174437efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 174537efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 174637efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 174737efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 174837efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 174937efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 175037efe6764568a3829fee26aba532283131d1a104Nate Begeman 175137efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 175237efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 175337efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 175437efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 175537efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 175637efe6764568a3829fee26aba532283131d1a104Nate Begeman } 175737efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 175837efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 17593d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case ISD::BR_JT: 17603d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17613d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // Ensure that libcalls are emitted before a branch. 17623d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 17633d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Tmp1); 17643d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 17653d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 17663d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. 17673d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 17683d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 17693d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { 17703d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng default: assert(0 && "This action is not supported yet!"); 17713d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Legal: break; 17723d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Custom: 17733d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 17743d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (Tmp1.Val) Result = Tmp1; 17753d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 17763d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Expand: { 17773d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Chain = Result.getOperand(0); 17783d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Table = Result.getOperand(1); 17793d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Index = Result.getOperand(2); 17803d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 17813d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng MVT::ValueType PTy = TLI.getPointerTy(); 1782acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey MachineFunction &MF = DAG.getMachineFunction(); 1783acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); 17843d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); 17853d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); 1786acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1787acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey SDOperand LD; 1788acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey switch (EntrySize) { 1789acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey default: assert(0 && "Size of jump table not supported yet."); break; 179069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, 17913069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getJumpTable(), 0); break; 179269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, 17933069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getJumpTable(), 0); break; 1794acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey } 1795acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1796cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = LD; 1797acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { 17983d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // For PIC, the sequence is: 17993d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // BRIND(load(Jumptable + index) + RelocBase) 1800cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng // RelocBase can be JumpTable, GOT or some sort of global base. 1801cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng if (PTy != MVT::i32) 1802cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::SIGN_EXTEND, PTy, Addr); 1803cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::ADD, PTy, Addr, 1804cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng TLI.getPICJumpTableRelocBase(Table, DAG)); 18053d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 1806cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); 18073d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 18083d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 18093d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 1810c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1811c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 18126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 18136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 18146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 18156831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 18166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 181747e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 181847e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 181947e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 182047e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 182147e9223e06390897c3834f8c527001df392570ffChris Lattner break; 18222e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman case Promote: { 182347e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 1824f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner 1825f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // The top bits of the promoted condition are not necessarily zero, ensure 1826f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // that the value is properly zero extended. 18272e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned BitWidth = Tmp2.getValueSizeInBits(); 1828ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp2, 18292e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(BitWidth, BitWidth-1))) 1830f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 183147e9223e06390897c3834f8c527001df392570ffChris Lattner break; 183247e9223e06390897c3834f8c527001df392570ffChris Lattner } 18332e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman } 1834456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1835456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1836c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 18377cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 18387cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 18397cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1840456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1841456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1842456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1843456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1844456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 18457cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 18467cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 18477cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 18487cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 18497cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 18507cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 18517cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 18527cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 18537cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 18547cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 18557cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 18567cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 18577cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 18587cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 18597cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 18607cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 18617cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 18627cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 18636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 18646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 18656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1866750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1867750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1868750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1869181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1870750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1871722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 1872722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng 1873750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1874750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1875750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1876750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1877750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1878750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1879750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1880750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1881750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1882750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1883456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1884181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1885181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1886456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1887456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1888456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1889456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1890181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 18917cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1892c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1893f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1894466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1895466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1896466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 18972d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1898466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1899466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 1900466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1901466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1902466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1903466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1904456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1905466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1906466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1907f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 1908f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1909f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1910f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1911f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 1912b625f2f8960de32bc973092aaee8ac62863006feDan Gohman getABITypeAlignment(MVT::getTypeForValueType(LD->getMemoryVT())); 1913f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1914f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1915f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1916f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp3 = Result.getOperand(0); 1917f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp4 = Result.getOperand(1); 1918907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp3 = LegalizeOp(Tmp3); 1919907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp4 = LegalizeOp(Tmp4); 1920f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1921f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1922f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 1923466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1924466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1925466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp1.Val) { 1926466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1927466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1928466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1929466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1930466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1931466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 1932466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(MVT::isVector(VT) && "Cannot promote this load!"); 1933466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 1934466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1935466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1936466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1937d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1938d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1939466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 194041f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1941466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1942f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1943466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1944466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1945466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1946466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp3); 1947466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp4); 1948466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp4 : Tmp3; 1949466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 1950b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType SrcVT = LD->getMemoryVT(); 1951f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned SrcWidth = MVT::getSizeInBits(SrcVT); 1952f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands int SVOffset = LD->getSrcValueOffset(); 1953f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned Alignment = LD->getAlignment(); 1954f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands bool isVolatile = LD->isVolatile(); 1955f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1956f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (SrcWidth != MVT::getStoreSizeInBits(SrcVT) && 1957f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Some targets pretend to have an i1 loading operation, and actually 1958f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // load an i8. This trick is correct for ZEXTLOAD because the top 7 1959f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bits are guaranteed to be zero; it helps the optimizers understand 1960f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // that these bits are zero. It is also useful for EXTLOAD, since it 1961f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // tells the optimizers that those bits are undefined. It would be 1962f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // nice to have an effective generic way of getting these benefits... 1963f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Until such a way is found, don't insist on promoting i1 here. 1964f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands (SrcVT != MVT::i1 || 1965f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands TLI.getLoadXAction(ExtType, MVT::i1) == TargetLowering::Promote)) { 1966f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Promote to a byte-sized load if not loading an integral number of 1967f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bytes. For example, promote EXTLOAD:i20 -> EXTLOAD:i24. 1968f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned NewWidth = MVT::getStoreSizeInBits(SrcVT); 1969f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MVT::ValueType NVT = MVT::getIntegerType(NewWidth); 1970f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Ch; 1971f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1972f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // The extra bits are guaranteed to be zero, since we stored them that 1973f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // way. A zext load from NVT thus automatically gives zext from SrcVT. 1974f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1975f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ISD::LoadExtType NewExtType = 1976f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtType == ISD::ZEXTLOAD ? ISD::ZEXTLOAD : ISD::EXTLOAD; 1977f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1978f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getExtLoad(NewExtType, Node->getValueType(0), 1979f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), SVOffset, 1980f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands NVT, isVolatile, Alignment); 1981f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1982f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = Result.getValue(1); // The chain. 1983f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1984f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 1985f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Having the top bits zero doesn't help when sign extending. 1986f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 1987f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 1988f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else if (ExtType == ISD::ZEXTLOAD || NVT == Result.getValueType()) 1989f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // All the top bits are guaranteed to be zero - inform the optimizers. 1990f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::AssertZext, Result.getValueType(), Result, 1991f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getValueType(SrcVT)); 1992f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1993f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 1994f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 1995f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else if (SrcWidth & (SrcWidth - 1)) { 1996f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If not loading a power-of-2 number of bits, expand as two loads. 1997f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(MVT::isExtendedVT(SrcVT) && !MVT::isVector(SrcVT) && 1998f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands "Unsupported extload!"); 1999f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned RoundWidth = 1 << Log2_32(SrcWidth); 2000f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(RoundWidth < SrcWidth); 2001f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned ExtraWidth = SrcWidth - RoundWidth; 2002f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(ExtraWidth < RoundWidth); 2003f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 2004f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands "Load size not an integral number of bytes!"); 2005f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MVT::ValueType RoundVT = MVT::getIntegerType(RoundWidth); 2006f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MVT::ValueType ExtraVT = MVT::getIntegerType(ExtraWidth); 2007f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Lo, Hi, Ch; 2008f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned IncrementSize; 2009f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2010f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (TLI.isLittleEndian()) { 2011f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> ZEXTLOAD:i16 | (shl EXTLOAD@+2:i8, 16) 2012f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the bottom RoundWidth bits. 2013f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, 2014f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 2015f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Alignment); 2016f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2017f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 2018f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 2019f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 2020f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 2021f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 2022f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 2023f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtraVT, isVolatile, 2024f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 2025f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2026f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Build a factor node to remember that this load is independent of the 2027f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // other one. 2028f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 2029f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 2030f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2031f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 2032f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, 2033f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 2034f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2035f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 2036f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); 2037f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 2038f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Big endian - avoid unaligned loads. 2039f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> (shl EXTLOAD:i16, 8) | ZEXTLOAD@+2:i8 2040f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the top RoundWidth bits. 2041f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 2042f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 2043f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Alignment); 2044f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2045f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 2046f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 2047f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 2048f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 2049f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, 2050f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 2051f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtraVT, isVolatile, 2052f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 2053f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2054f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Build a factor node to remember that this load is independent of the 2055f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // other one. 2056f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 2057f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 2058f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2059f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 2060f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, 2061f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 2062f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2063f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 2064f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); 2065f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2066f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2067f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 2068f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 2069f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 2070f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands switch (TLI.getLoadXAction(ExtType, SrcVT)) { 2071f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands default: assert(0 && "This action is not supported yet!"); 2072f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Custom: 2073f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands isCustom = true; 2074f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // FALLTHROUGH 2075f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Legal: 2076f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 2077f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getValue(0); 2078f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getValue(1); 2079f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2080f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (isCustom) { 2081f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp3 = TLI.LowerOperation(Result, DAG); 2082f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (Tmp3.Val) { 2083f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp3); 2084f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2085f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2086f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 2087f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If this is an unaligned load and the target doesn't support it, 2088f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // expand it. 2089f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (!TLI.allowsUnalignedMemoryAccesses()) { 2090f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned ABIAlignment = TLI.getTargetData()-> 2091b625f2f8960de32bc973092aaee8ac62863006feDan Gohman getABITypeAlignment(MVT::getTypeForValueType(LD->getMemoryVT())); 2092f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (LD->getAlignment() < ABIAlignment){ 2093f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 2094f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands TLI); 2095f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getOperand(0); 2096f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getOperand(1); 2097f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp1); 2098f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp2); 2099f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2100f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2101f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2102f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 2103f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Expand: 2104f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 2105f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 2106f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 2107f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValueOffset(), 2108f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->isVolatile(), LD->getAlignment()); 2109f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 2110f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 2111f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Load.getValue(1)); 2112f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 2113f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2114f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(ExtType != ISD::EXTLOAD &&"EXTLOAD should always be supported!"); 2115f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Turn the unsupported load into an EXTLOAD followed by an explicit 2116f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // zero/sign extend inreg. 2117f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 2118f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), 2119f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValueOffset(), SrcVT, 2120f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->isVolatile(), LD->getAlignment()); 2121f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand ValRes; 2122f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 2123f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 2124f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 2125f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else 2126f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 2127f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 2128f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 2129466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 2130466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 21319d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 2132f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2133466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 2134466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 2135466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 2136466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2137466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp2 : Tmp1; 213801ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 213901ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 21405dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 21415dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman MVT::ValueType OpTy = Node->getOperand(0).getValueType(); 21425dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 2143c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 21445dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 21455dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 21465dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 21475dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 21485dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman DAG.getConstant(MVT::getSizeInBits(OpTy)/2, 21495dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 21505dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 21515dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 21525dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 21535dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 21545dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 21555dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 21565dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 21575dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 21585dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 21595dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 21605dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 21615dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 21625dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 21635dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 21645dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 21655dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 21663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 21675dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 21683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 21693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 21703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2171edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2172c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 2173d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 21747310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 2175d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 2176f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 2177c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 21787310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 2179f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 2180c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 2181f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 2182c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 2183c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 2184c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 2185c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 21867310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 21877310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 21887310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 21897310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 2190c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 21917310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2192c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 21937310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 21943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 21953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 21963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 21973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 21986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 21996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 22006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 22016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 22026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 2203f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 22043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 22058e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 220698f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 22078e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 2208f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 22093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 22108e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 22113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2212f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 22137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(Tmp2.getValueType())) { 2214f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 2215f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 2216edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 2217edf2e8da256496c19390cfd46da80746373e9989Chris Lattner // Big endian systems want the hi reg first. 22180753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 2219edf2e8da256496c19390cfd46da80746373e9989Chris Lattner std::swap(Lo, Hi); 2220edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 222113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 222213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 222313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng else 222413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); 2225f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 2226f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 2227f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDNode *InVal = Tmp2.Val; 2228e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Tmp2.ResNo; 2229e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(InIx)); 2230e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(InIx)); 2231f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 22327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2233ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 2234f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 22357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2236ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a return of the vector type. 22377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 22388e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2239f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 2240f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 22417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = ScalarizeVectorOp(Tmp2); 22427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 22438e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2244b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 2245b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 2246b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 2247b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 2248f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 2249f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 2250f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 2251f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 2252b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 2253b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 2254f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 2255f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 2256fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 2257f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 2258f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 2259f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 2260edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 22613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 22628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 22638e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2264c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 22658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 22663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 22673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 2269c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 22703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 2272f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> NewValues; 22733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 22748e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 22753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 22763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 22774e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 22788e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 22793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 22813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 22826595cb3000d7f5f8e9a76d556aa8609db91b7887Dan Gohman assert(!MVT::isExtendedVT(Node->getOperand(i).getValueType()) && 2283b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 22843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 22853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 22868e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 228713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) { 228813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Hi); 228913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 229013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng } 2291edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 22923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 22933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 22948b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 22953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2296c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2297c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 2298f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 2299c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 2300f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 2301f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 23023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 23033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 23043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 230517c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 23066862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 23076862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 23086862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 23096862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 23106862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 23116862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 23126862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 23136862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 23146862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 231517c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 23163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2317f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 23188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 23198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 23208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 2321d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = ST->getSrcValueOffset(); 2322d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = ST->getAlignment(); 2323d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = ST->isVolatile(); 23248b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 23258b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 2326d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 2327d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 2328d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: move this to the DAG Combiner! Note that we can't regress due 2329d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // to phase ordering between legalized code and the dag combiner. This 2330d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // probably means that we need to integrate dag combiner and legalizer 2331d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // together. 23329e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // We generally can't do this one for long doubles. 23332b4c279a8e203fa8b13adf7ba3a5d4c8bef70df3Chris Lattner if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(ST->getValue())) { 23343cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (CFP->getValueType(0) == MVT::f32 && 23353cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner getTypeAction(MVT::i32) == Legal) { 23366cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman Tmp3 = DAG.getConstant(CFP->getValueAPF(). 23376cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman convertToAPInt().zextOrTrunc(32), 23383f6eb7419de437436265831fce92f62498556e08Dale Johannesen MVT::i32); 23399e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 23409e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen SVOffset, isVolatile, Alignment); 23419e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen break; 23429e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen } else if (CFP->getValueType(0) == MVT::f64) { 23433cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // If this target supports 64-bit registers, do a single 64-bit store. 23443cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (getTypeAction(MVT::i64) == Legal) { 23453cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp3 = DAG.getConstant(CFP->getValueAPF().convertToAPInt(). 23466cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman zextOrTrunc(64), MVT::i64); 23473cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 23483cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 23493cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 23503cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner } else if (getTypeAction(MVT::i32) == Legal) { 23513cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // Otherwise, if the target supports 32-bit registers, use 2 32-bit 23523cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // stores. If the target supports neither 32- nor 64-bits, this 23533cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // xform is certainly not worth it. 23546cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman const APInt &IntVal =CFP->getValueAPF().convertToAPInt(); 23556cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman SDOperand Lo = DAG.getConstant(APInt(IntVal).trunc(32), MVT::i32); 23566cf9b8adf43b0a460fb4ba8ddbff2787f5aa9d5eDan Gohman SDOperand Hi = DAG.getConstant(IntVal.lshr(32).trunc(32), MVT::i32); 23570753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) std::swap(Lo, Hi); 23583cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 23593cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 23603cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 23613cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 23620bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(4)); 23633cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset+4, 2364dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands isVolatile, MinAlign(Alignment, 4U)); 23653cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 23663cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 23673cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 23683cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner } 2369d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2370d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2371d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner 2372b625f2f8960de32bc973092aaee8ac62863006feDan Gohman switch (getTypeAction(ST->getMemoryVT())) { 23738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Legal: { 23748b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 23752efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 23768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 23778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 23788b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType VT = Tmp3.getValueType(); 23798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 23808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 2381f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 2382f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 2383f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 2384f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 2385f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 2386b625f2f8960de32bc973092aaee8ac62863006feDan Gohman getABITypeAlignment(MVT::getTypeForValueType(ST->getMemoryVT())); 2387f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 2388f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 2389f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 2390f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2391f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 23928b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 23938b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 23948b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 23958b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 23968b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 23978b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(MVT::isVector(VT) && "Unknown legal promote case!"); 23988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 23998b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 24008b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, 2401d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman ST->getSrcValue(), SVOffset, isVolatile, 2402d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 24038b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24048b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 24052efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 2406f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 24078b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Promote: 24088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncate the value and store the result. 24098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PromoteOp(ST->getValue()); 24108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2411b625f2f8960de32bc973092aaee8ac62863006feDan Gohman SVOffset, ST->getMemoryVT(), 2412d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 24138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 241403c8546ec57523970874917854a2fb77b1ff598eChris Lattner 24158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Expand: 24168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned IncrementSize = 0; 24178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Lo, Hi; 2418c7029805ef35ce9805931067b841e6af11db382eChris Lattner 24198b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // If this is a vector type, then we have to calculate the increment as 24208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // the product of the element size in bytes, and the number of elements 24218b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // in the high half of the vector. 24227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (MVT::isVector(ST->getValue().getValueType())) { 24238b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDNode *InVal = ST->getValue().Val; 2424e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = ST->getValue().ResNo; 24250bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType InVT = InVal->getValueType(InIx); 24260bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner unsigned NumElems = MVT::getVectorNumElements(InVT); 24270bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType EVT = MVT::getVectorElementType(InVT); 24288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 24297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2430ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 24318b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 24327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2433ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a normal store of the vector type. 243421be3849aef47e6d8c26f31b11def57d59167863Dan Gohman Tmp3 = LegalizeOp(ST->getValue()); 24358b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2436d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24378b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 24388b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24398b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (NumElems == 1) { 24408b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the scalar type. 244121be3849aef47e6d8c26f31b11def57d59167863Dan Gohman Tmp3 = ScalarizeVectorOp(ST->getValue()); 24428b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2443d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The scalarized value type may not be legal, e.g. it might require 24458b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // promotion or expansion. Relegalize the scalar store. 24468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 24478b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24488b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 244921be3849aef47e6d8c26f31b11def57d59167863Dan Gohman SplitVectorOp(ST->getValue(), Lo, Hi); 24505db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman IncrementSize = MVT::getVectorNumElements(Lo.Val->getValueType(0)) * 24515db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman MVT::getSizeInBits(EVT)/8; 24528b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 2453c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 245421be3849aef47e6d8c26f31b11def57d59167863Dan Gohman ExpandOp(ST->getValue(), Lo, Hi); 24557b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng IncrementSize = Hi.Val ? MVT::getSizeInBits(Hi.getValueType())/8 : 0; 24568b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 24570753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 24588b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng std::swap(Lo, Hi); 2459c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 2460c7029805ef35ce9805931067b841e6af11db382eChris Lattner 24618b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 2462d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24637b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 24647b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (Hi.Val == NULL) { 24657b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // Must be int <-> float one-to-one expansion. 24667b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng Result = Lo; 24677b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 24687b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 24697b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 24708b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 24710bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 24728b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(Tmp2.getValueType()) && 24738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Pointers must be legal!"); 2474d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset += IncrementSize; 2475dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 24768b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 2477d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24788b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 24798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 24818b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 2482ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner switch (getTypeAction(ST->getValue().getValueType())) { 2483ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Legal: 2484ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner Tmp3 = LegalizeOp(ST->getValue()); 2485ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner break; 2486ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Promote: 2487ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // We can promote the value, the truncstore will still take care of it. 2488ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner Tmp3 = PromoteOp(ST->getValue()); 2489ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner break; 2490ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Expand: 2491ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // Just store the low part. This may become a non-trunc store, so make 2492ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // sure to use getTruncStore, not UpdateNodeOperands below. 2493ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner ExpandOp(ST->getValue(), Tmp3, Tmp4); 2494ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner return DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2495ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner SVOffset, MVT::i8, isVolatile, Alignment); 2496ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner } 24977e857201f387d004571e6058e2ea709163500f38Duncan Sands 2498b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType StVT = ST->getMemoryVT(); 24997e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned StWidth = MVT::getSizeInBits(StVT); 25007e857201f387d004571e6058e2ea709163500f38Duncan Sands 25017e857201f387d004571e6058e2ea709163500f38Duncan Sands if (StWidth != MVT::getStoreSizeInBits(StVT)) { 25027e857201f387d004571e6058e2ea709163500f38Duncan Sands // Promote to a byte-sized store with upper bits zero if not 25037e857201f387d004571e6058e2ea709163500f38Duncan Sands // storing an integral number of bytes. For example, promote 25047e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i1 X -> TRUNCSTORE:i8 (and X, 1) 25057e857201f387d004571e6058e2ea709163500f38Duncan Sands MVT::ValueType NVT = MVT::getIntegerType(MVT::getStoreSizeInBits(StVT)); 25067e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp3 = DAG.getZeroExtendInReg(Tmp3, StVT); 25078b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 25087e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset, NVT, isVolatile, Alignment); 25097e857201f387d004571e6058e2ea709163500f38Duncan Sands } else if (StWidth & (StWidth - 1)) { 25107e857201f387d004571e6058e2ea709163500f38Duncan Sands // If not storing a power-of-2 number of bits, expand as two stores. 25117e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(MVT::isExtendedVT(StVT) && !MVT::isVector(StVT) && 25127e857201f387d004571e6058e2ea709163500f38Duncan Sands "Unsupported truncstore!"); 25137e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned RoundWidth = 1 << Log2_32(StWidth); 25147e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(RoundWidth < StWidth); 25157e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned ExtraWidth = StWidth - RoundWidth; 25167e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(ExtraWidth < RoundWidth); 25177e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 25187e857201f387d004571e6058e2ea709163500f38Duncan Sands "Store size not an integral number of bytes!"); 25197e857201f387d004571e6058e2ea709163500f38Duncan Sands MVT::ValueType RoundVT = MVT::getIntegerType(RoundWidth); 25207e857201f387d004571e6058e2ea709163500f38Duncan Sands MVT::ValueType ExtraVT = MVT::getIntegerType(ExtraWidth); 25217e857201f387d004571e6058e2ea709163500f38Duncan Sands SDOperand Lo, Hi; 25227e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned IncrementSize; 25237e857201f387d004571e6058e2ea709163500f38Duncan Sands 25247e857201f387d004571e6058e2ea709163500f38Duncan Sands if (TLI.isLittleEndian()) { 25257e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 X, TRUNCSTORE@+2:i8 (srl X, 16) 25267e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the bottom RoundWidth bits. 25277e857201f387d004571e6058e2ea709163500f38Duncan Sands Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 25287e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset, RoundVT, 25297e857201f387d004571e6058e2ea709163500f38Duncan Sands isVolatile, Alignment); 25307e857201f387d004571e6058e2ea709163500f38Duncan Sands 25317e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 25327e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 25337e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 25347e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 25357e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, 25367e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 25377e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 25387e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 25397e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 25407e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 25417e857201f387d004571e6058e2ea709163500f38Duncan Sands // Big endian - avoid unaligned stores. 25427e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 (srl X, 8), TRUNCSTORE@+2:i8 X 25437e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the top RoundWidth bits. 25447e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, 25457e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 25467e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset, 25477e857201f387d004571e6058e2ea709163500f38Duncan Sands RoundVT, isVolatile, Alignment); 25487e857201f387d004571e6058e2ea709163500f38Duncan Sands 25497e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 25507e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 25517e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 25527e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 25537e857201f387d004571e6058e2ea709163500f38Duncan Sands Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 25547e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 25557e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 25567e857201f387d004571e6058e2ea709163500f38Duncan Sands } 2557c7029805ef35ce9805931067b841e6af11db382eChris Lattner 25587e857201f387d004571e6058e2ea709163500f38Duncan Sands // The order of the stores doesn't matter. 25597e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 25607e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 25617e857201f387d004571e6058e2ea709163500f38Duncan Sands if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 25627e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 != ST->getBasePtr()) 25637e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 25647e857201f387d004571e6058e2ea709163500f38Duncan Sands ST->getOffset()); 25657e857201f387d004571e6058e2ea709163500f38Duncan Sands 25667e857201f387d004571e6058e2ea709163500f38Duncan Sands switch (TLI.getTruncStoreAction(ST->getValue().getValueType(), StVT)) { 25677e857201f387d004571e6058e2ea709163500f38Duncan Sands default: assert(0 && "This action is not supported yet!"); 25687e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Legal: 25697e857201f387d004571e6058e2ea709163500f38Duncan Sands // If this is an unaligned store and the target doesn't support it, 25707e857201f387d004571e6058e2ea709163500f38Duncan Sands // expand it. 25717e857201f387d004571e6058e2ea709163500f38Duncan Sands if (!TLI.allowsUnalignedMemoryAccesses()) { 25727e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned ABIAlignment = TLI.getTargetData()-> 2573b625f2f8960de32bc973092aaee8ac62863006feDan Gohman getABITypeAlignment(MVT::getTypeForValueType(ST->getMemoryVT())); 25747e857201f387d004571e6058e2ea709163500f38Duncan Sands if (ST->getAlignment() < ABIAlignment) 25757e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 25767e857201f387d004571e6058e2ea709163500f38Duncan Sands TLI); 25777e857201f387d004571e6058e2ea709163500f38Duncan Sands } 25787e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 25797e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Custom: 25807e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = TLI.LowerOperation(Result, DAG); 25817e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 25827e857201f387d004571e6058e2ea709163500f38Duncan Sands case Expand: 25837e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i16 i32 -> STORE i16 25847e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(isTypeLegal(StVT) && "Do not know how to expand this store!"); 25857e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp3 = DAG.getNode(ISD::TRUNCATE, StVT, Tmp3); 25867e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), SVOffset, 25877e857201f387d004571e6058e2ea709163500f38Duncan Sands isVolatile, Alignment); 25887e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 2589f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 25908b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 25913e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 25923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2593f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 259495762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 259595762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2596c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 259795762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 2598140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 2599140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2600c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2601c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 2602c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 2603456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2604140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 2605140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2606456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2607456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2608c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 2609c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 2610c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 2611c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2612140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2613456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2614140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 26154f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 26164f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 26174f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 2618c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 26194f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 2620c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 26214f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 2622c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 2623c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 26244f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2625456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2626140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2627456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2628456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 2629456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 2630c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 2631c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2632c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 2633456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2634140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 2635140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2636140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2637c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2638140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 2639140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 2640140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2641456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2642456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2643456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2644456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2645140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2646140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 26474f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 26484f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 26494f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 26504f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 26514f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 26524f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 26534f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2654140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2655140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2656140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2657140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 265851b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 265951b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 2660c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2661f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, 2662f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Node->getValueType(0))) { 2663f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng default: assert(0 && "This action is not supported yet!"); 26646a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng case TargetLowering::Legal: 26656a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = Result.getValue(0); 26666a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = Result.getValue(1); 26676a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng break; 2668f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng case TargetLowering::Custom: 2669f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Result = TLI.LowerOperation(Result, DAG); 26706a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = LegalizeOp(Result.getValue(0)); 26716a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); 2672f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng break; 2673f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng } 267449c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 267549c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 267649c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 26776a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 26786a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2679c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 2680f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 26812ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 268247e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 268347e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 268447e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 268547e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 268647e9223e06390897c3834f8c527001df392570ffChris Lattner break; 26872e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman case Promote: { 268847e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 2689b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner // Make sure the condition is either zero or one. 26902e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned BitWidth = Tmp1.getValueSizeInBits(); 2691ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp1, 26922e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(BitWidth, BitWidth-1))) 2693b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 269447e9223e06390897c3834f8c527001df392570ffChris Lattner break; 269547e9223e06390897c3834f8c527001df392570ffChris Lattner } 26962e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman } 26973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 26982ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 269955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 2700c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2701456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2702b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 270355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 2704456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2705456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 2706456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2707456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2708456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2709456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 27109373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 27119373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 27129373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 27139373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 27149373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 27159373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 27169373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 27179373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 27189373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 27199373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 272055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 272155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 272255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner MVT::ValueType NVT = 272355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 272455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 272541f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng if (MVT::isVector(Tmp2.getValueType())) { 272641f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 272741f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 272841f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng } else if (MVT::isInteger(Tmp2.getValueType())) { 2729456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 2730456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 273155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 2732456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 2733456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 273455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 273555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 273655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 273755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 273855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 273955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 27400bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TruncOp != ISD::FP_ROUND) 27410bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 27420bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner else 27430bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result, 27440bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(0)); 274555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 274655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 274755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 27483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2749750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 2750750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 2751750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 27529373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 27539373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 2754750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 27559373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2756750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 2757750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2758750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 2759750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 2760750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 2761750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2762750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 2763750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 2764750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2765750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 2766750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2767750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 2768750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 2769750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 2770750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 2771750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 2772750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2773750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 27749373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 27759373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 27769373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2777750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 27783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 2779750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 2780750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 2781750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 2782750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 2783750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2784750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 2785750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 2786750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 2787750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2788750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 27893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 27903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2791b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 279273e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 2793456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 2794456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2795456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2796456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 2797456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 27982b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2799456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 28002b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp4 = TLI.LowerOperation(Result, DAG); 28012b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (Tmp4.Val) Result = Tmp4; 2802456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2803b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2804ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 2805ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 2806ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 2807ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 2808ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType NewInTy = Node->getOperand(0).getValueType(); 280900755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner MVT::ValueType OldVT = NewInTy; OldVT = OldVT; 2810ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2811ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 2812ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 2813ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth NewInTy = (MVT::ValueType)(NewInTy+1); 2814ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2815ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) && 2816ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 2817ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) && 2818ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 2819ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2820ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 28211ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 2822ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 2823ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2824ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth if (MVT::isInteger(NewInTy)) 2825ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 2826ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 2827ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 2828ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 2829ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2830c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 2831c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 28322b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2833433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 28345e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 2835ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2836b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 2837b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 2838b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 2839b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman MVT::ValueType VT = Node->getValueType(0); 2840b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 2841b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 28422b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp3); 2843b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2844b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 28453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 284652d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 28475b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 28485b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 28495b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2850f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 285184f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 285284f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 285384f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 285484f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 285584f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2856c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2857f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 28582c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 285905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 286005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 286105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2862456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2863456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2864456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2865456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 2866456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 286705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2868456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 286905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 287005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 287112f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 287205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2873269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 287405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 287505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 287605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 287705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 287805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 28792c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 28802c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 28812c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 28822c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 28832c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 288484f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 28852c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 28862c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 28873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 28883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 28893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2890c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2891c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 28923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 28933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 28943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 28953e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 28963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 289703c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 289803c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 289903c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 290001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 290101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 290201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 290301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 2904826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 29053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2906f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 2907f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 2908f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 2909f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2910f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2911f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 2912f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 2913f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2914f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 2915c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2916c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2917456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2918e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 2919bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 2920456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2921456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2922456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2923456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 292457030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 2925bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 2926525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman MVT::ValueType VT = Op.getValueType(); 2927525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2928525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if multiply or divide can be lowered using two-result operations. 2929525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 2930525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MUL) { 2931525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We just need the low half of the multiply; try both the signed 2932525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // and unsigned forms. If the target supports both SMUL_LOHI and 2933525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // UMUL_LOHI, form a preference by checking which forms of plain 2934525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // MULH it supports. 2935525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, VT); 2936525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, VT); 2937525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, VT); 2938525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, VT); 2939525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned OpToUse = 0; 2940525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI && !HasMULHS) { 2941525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 2942525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI && !HasMULHU) { 2943525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 2944525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasSMUL_LOHI) { 2945525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 2946525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI) { 2947525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 2948525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2949525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (OpToUse) { 2950525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(OpToUse, VTs, Tmp1, Tmp2).Val, 0); 2951525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2952525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2953525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2954525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHS && 2955525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SMUL_LOHI, VT)) { 2956525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 2957525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2958525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2959525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHU && 2960525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UMUL_LOHI, VT)) { 2961525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 2962525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2963525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2964525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SDIV && 2965525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 2966525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 0); 2967525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2968525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2969525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UDIV && 2970525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 2971525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 0); 2972525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 2973525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 2974525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 2975826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Check to see if we have a libcall for this operator. 2976826695281344e3a4c4d44d73dd155107aafd689bDan Gohman RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2977826695281344e3a4c4d44d73dd155107aafd689bDan Gohman bool isSigned = false; 2978826695281344e3a4c4d44d73dd155107aafd689bDan Gohman switch (Node->getOpcode()) { 2979826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::UDIV: 2980826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::SDIV: 2981826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (VT == MVT::i32) { 2982826695281344e3a4c4d44d73dd155107aafd689bDan Gohman LC = Node->getOpcode() == ISD::UDIV 298356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UDIV_I32 : RTLIB::SDIV_I32; 2984826695281344e3a4c4d44d73dd155107aafd689bDan Gohman isSigned = Node->getOpcode() == ISD::SDIV; 2985826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 2986826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 2987826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 2988007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::POW_F32, RTLIB::POW_F64, RTLIB::POW_F80, 2989007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POW_PPCF128); 2990826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 2991826695281344e3a4c4d44d73dd155107aafd689bDan Gohman default: break; 2992826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 2993826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (LC != RTLIB::UNKNOWN_LIBCALL) { 2994826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand Dummy; 2995826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 299652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 299752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 299852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 2999bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner assert(MVT::isVector(Node->getValueType(0)) && 3000bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 3001bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 3002826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3003bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 3004bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 3005cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 3006cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 3007cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 3008cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 3009cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 3010cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 3011cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType OVT = Node->getValueType(0); 3012cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3013cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng assert(MVT::isVector(OVT) && "Cannot promote this BinOp!"); 3014cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 3015cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 3016cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 3017cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 3018cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 3019cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 3020cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 3021cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3022cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3023cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3024e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 30253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 3026a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3027e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SMUL_LOHI: 3028e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UMUL_LOHI: 3029e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SDIVREM: 3030e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UDIVREM: 3031e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // These nodes will only be produced by target-specific lowering, so 3032e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // they shouldn't be here if they aren't legal. 3033a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 3034e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman "This must be legal!"); 3035525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3036525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3037525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3038525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3039e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman break; 3040e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman 3041a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 3042a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3043a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 3044a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 3045a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 3046a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 3047a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3048a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 3049a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 3050a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3051a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 3052a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3053a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3054a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3055a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3056a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 3057a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 3058a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3059a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 30608f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 3061a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 3062912095becac923ff614d7b07728eb345ada67765Evan Cheng case TargetLowering::Expand: { 3063636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // If this target supports fabs/fneg natively and select is cheap, 3064636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // do this efficiently. 3065636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng if (!TLI.isSelectExpensive() && 3066636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TLI.getOperationAction(ISD::FABS, Tmp1.getValueType()) == 3067636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal && 3068912095becac923ff614d7b07728eb345ada67765Evan Cheng TLI.getOperationAction(ISD::FNEG, Tmp1.getValueType()) == 3069636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal) { 30708f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 30718f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner MVT::ValueType IVT = 30728f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 30738f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 30745b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel SignBit = DAG.getSetCC(TLI.getSetCCResultType(SignBit), 30758f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 30768f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 30778f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 30788f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 30798f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 30808f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 30818f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 30828f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 30838f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 30848f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 30858f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 30868f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 30878f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 30888f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 3089912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType NVT = 3090912095becac923ff614d7b07728eb345ada67765Evan Cheng Node->getValueType(0) == MVT::f32 ? MVT::i32 : MVT::i64; 3091912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 3092912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), Result); 3093912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = LegalizeOp(Result); 3094a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3095a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 3096912095becac923ff614d7b07728eb345ada67765Evan Cheng } 3097a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3098a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3099551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 3100551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 3101551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3102551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3103551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3104551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 3105551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 3106551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 3107551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 3108551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 3109edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 3110551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 3111551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 3112551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3113551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3114551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 3115551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 3116551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 3117551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 3118551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 3119551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 3120551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 3121551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 3122419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 3123419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman MVT::ValueType PairTy = Node->getValueType(0); 3124419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 3125419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 3126419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 3127419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 3128456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3129456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3130456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 3131419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 3132419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 3133419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 3134419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3135419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 3136419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 3137419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 3138419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 3139419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman DAG.getConstant(MVT::getSizeInBits(PairTy)/2, 3140419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 3141456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 3142419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3143419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 3144419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3145419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 3146419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 3147c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 3148c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 314901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3150c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3151c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3152456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3153c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3154456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 3155456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3156456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3157456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 315857030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 3159c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3160456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3161456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3162456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3163456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 316457030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 3165525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman case TargetLowering::Expand: { 31666b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 316747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = DivOpc == ISD::SDIV; 3168525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman MVT::ValueType VT = Node->getValueType(0); 3169525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3170525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if remainder can be lowered using two-result operations. 3171525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 3172525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SREM && 3173525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 3174525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 1); 3175525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3176525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3177525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UREM && 3178525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 3179525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 1); 3180525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3181525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3182525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3183525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (MVT::isInteger(VT)) { 3184525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (TLI.getOperationAction(DivOpc, VT) == 318552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 318652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 31876b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 318852cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 318952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 319080176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } else if (MVT::isVector(VT)) { 319180176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 319252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 3193525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman assert(VT == MVT::i32 && 319452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 319556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UREM 319656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UREM_I32 : RTLIB::SREM_I32; 319752cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 319856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 319952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 32000d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman } else { 32010d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman assert(MVT::isFloatingPoint(VT) && 32020d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman "remainder op must have integer or floating-point type"); 320380176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman if (MVT::isVector(VT)) { 320480176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 320580176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } else { 320680176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman // Floating point mod -> fmod libcall. 3207007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::REM_F32, RTLIB::REM_F64, 3208007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::REM_F80, RTLIB::REM_PPCF128); 320980176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman SDOperand Dummy; 321080176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 321180176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman false/*sign irrelevant*/, Dummy); 321280176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } 3213c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 3214c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 3215c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 3216525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3217c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 3218acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 3219acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3220acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3221acc398c195a697795bff3245943d104eb19192b9Nate Begeman 32225c62f337fe846247f5e72acb32844e24b4f18b71Chris Lattner MVT::ValueType VT = Node->getValueType(0); 3223acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 3224acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3225456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3226456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3227456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3228acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3229c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3230c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 3231456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 3232456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3233456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3234456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 3235456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 3236456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 3237456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 3238456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3239456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3240acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3241acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 324269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); 324369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, V, 0); 3244acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 3245acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 3246acc398c195a697795bff3245943d104eb19192b9Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 3247acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 3248acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 324969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, V, 0); 3250acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 3251466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 3252456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 3253acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 3254acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3255acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3256acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3257acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 3258acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 3259acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 3260456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 3261456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 3262acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3263acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3264acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 3265acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3266acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 3267acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 3268acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3269acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 3270acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3271456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3272456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3273456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3274acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3275c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 3276c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 3277456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3278456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3279456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3280456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3281acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3282acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3283acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 3284acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 328569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *VD = cast<SrcValueSDNode>(Node->getOperand(3))->getValue(); 328669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *VS = cast<SrcValueSDNode>(Node->getOperand(4))->getValue(); 328769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, VD, 0); 328869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, VS, 0); 3289acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3290acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3291acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3292acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3293acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 3294acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3295acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3296acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3297acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 3298acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3299456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3300456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3301456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3302acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3303c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3304456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3305456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 3306456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3307456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3308acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3309acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3310acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 3311acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3312acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3313acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3314acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3315acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 3316acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3317acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3318acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3319c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3320c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 3321acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 3322acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3323456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 3324456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3325456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3326456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3327acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3328acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3329acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3330acc398c195a697795bff3245943d104eb19192b9Nate Begeman 333135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 333235ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 333335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 333435ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3335c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3336c9dc11457809b6641de853af2261721a97ad1f26Scott Michel switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3337c9dc11457809b6641de853af2261721a97ad1f26Scott Michel default: 3338c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "ROTL/ROTR legalize operation not supported"); 3339c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3340c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Legal: 3341c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3342c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Custom: 3343c9dc11457809b6641de853af2261721a97ad1f26Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3344c9dc11457809b6641de853af2261721a97ad1f26Scott Michel if (Tmp1.Val) Result = Tmp1; 3345c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3346c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Promote: 3347c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to promote ROTL/ROTR"); 3348c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3349c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Expand: 3350c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to expand ROTL/ROTR"); 3351c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3352c9dc11457809b6641de853af2261721a97ad1f26Scott Michel } 335335ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 335435ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 3355d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3356d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3357d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3358456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3359456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 3360456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3361c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3362456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3363456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 3364456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType OVT = Tmp1.getValueType(); 3365456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3366b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned DiffBits = MVT::getSizeInBits(NVT) - MVT::getSizeInBits(OVT); 3367456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3368456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3369456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3370456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3371456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 3372456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3373456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3374456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 3375456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 3376456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3377d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 3378d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3379d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 3380691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3381691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3382691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3383691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3384691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3385910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel case TargetLowering::Custom: 3386691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 3387c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3388910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 3389335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel TargetLowering::Custom) { 3390335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3391335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel if (Tmp1.Val) { 3392335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Result = Tmp1; 3393335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel } 3394910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel } 3395691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3396691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 3397691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType OVT = Tmp1.getValueType(); 3398691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3399edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 3400edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 3401691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3402691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 3403691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 3404456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3405691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3406691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 3407691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3408691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3409691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 34105b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, 3411b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 34127cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 341300b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 3414910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel DAG.getConstant(MVT::getSizeInBits(OVT),NVT), Tmp1); 3415691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3416691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3417456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 341800b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 3419b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 3420b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(OVT), NVT)); 3421691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3422691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3423691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3424691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3425691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 3426456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 3427691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3428691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3429691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 343000b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 34312c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 34322c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 34332c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 3434da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3435da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3436da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 34372c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 34382c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3439456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3440456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 344159ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 344259ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 34432c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 3444c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 344559ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 344659ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 344759ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 344859ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 34492c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 34502c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 3451456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3452456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 3453456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 34542c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 34552c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 3456456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 3457f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3458f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 34594af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 34604af6e0d7836126630f579b0a34f054321187f00bChris Lattner MVT::ValueType VT = Node->getValueType(0); 34614af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 34625b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, Tmp2, 34635922f561c65968ef1865cc8434d191041e450602Nate Begeman ISD::SETUGT); 34644af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 34654af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 3466f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3467f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 3468f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 3469f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 3470f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 3471f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner MVT::ValueType VT = Node->getValueType(0); 3472826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3473826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 3474826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(VT)) { 3475826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3476826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3477826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3478826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 347956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 3480f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 348156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 3482007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, 3483007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); 348456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 348556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 3486007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, 3487007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SIN_F80, RTLIB::SIN_PPCF128); 348856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 348956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 3490007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, 3491007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::COS_F80, RTLIB::COS_PPCF128); 349256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 3493f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 3494f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 34952ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 349656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 349756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 3498f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3499f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 35002c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 35012c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35022c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 35032c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35046ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 3505826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType VT = Node->getValueType(0); 3506826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3507826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 3508826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(VT)) { 3509826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3510826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3511826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3512826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3513826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // We always lower FPOWI into a libcall. No target support for it yet. 3514007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::POWI_F32, RTLIB::POWI_F64, 3515007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_F80, RTLIB::POWI_PPCF128); 35166ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner SDOperand Dummy; 351756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 351856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 35196ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 35206ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 352135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 352267993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 35231401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 35241401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 35257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::isVector(Op.getOperand(0).getValueType())) { 35267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // The input has to be a vector type, we have to either scalarize it, pack 35277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // it, or convert it based on whether the input vector type is legal. 35287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDNode *InVal = Node->getOperand(0).Val; 3529e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Node->getOperand(0).ResNo; 3530e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(InIx)); 3531e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(InIx)); 35327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 35337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 35347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // type. If so, convert to the vector type. 35357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 35367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 353707a96765daedf180a7102d39fe56c499878312b7Dan Gohman // Turn this into a bit convert of the vector input. 35387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 35397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LegalizeOp(Node->getOperand(0))); 35407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 35417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (NumElems == 1) { 35427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Turn this into a bit convert of the scalar input. 35437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 35447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 35457f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 35467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 35477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // FIXME: UNIMP! Store then reload 35487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Cast from unsupported vector type not implemented yet!"); 35497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 355067993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 355135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 355235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 355335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 355435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 35551401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 35561401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 355735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 355835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 355935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3560c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 356135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 356235481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 356335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 356435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 3565d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 35662c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 3567fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 3568fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 3569fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 3570fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3571fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3572d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 3573fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 3574fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 3575456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3576456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3577456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3578456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3579456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3580c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3581456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3582456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3583456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3584456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3585456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3586fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 35876269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 35886269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 35896269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 3590456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3591fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 3592fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 3593fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 3594fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 3595fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 35965b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 3597fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3598fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3599fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 3600fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 3601fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3602fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3603c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3604fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 3605c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 3606c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 3607fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 3608c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 3609c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 3610fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3611c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3612c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 3613fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3614fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3615fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3616fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3617fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 3618fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3619fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3620fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3621c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3622fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3623fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3624fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 3625fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 3626fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 3627fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 3628fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 3629fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3630fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3631fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 3632fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 3633fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3634fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3635fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3636d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3637fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 3638fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 3639fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3640fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3641f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3642f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 36431618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 36441618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 3645456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3646456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3647456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3648456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3649c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3650456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3651456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3652456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3653456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3654456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3655456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3656456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 3657456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 3658456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 36591618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 3660d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 3661d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 3662d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType VT = Node->getOperand(0).getValueType(); 3663d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType NVT = Node->getValueType(0); 366473328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen const uint64_t zero[] = {0, 0}; 366573328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen APFloat apf = APFloat(APInt(MVT::getSizeInBits(VT), 2, zero)); 3666c7773bf90ee4398ccdeb847db6330cf4507b832bDan Gohman APInt x = APInt::getSignBit(MVT::getSizeInBits(NVT)); 3667c7773bf90ee4398ccdeb847db6330cf4507b832bDan Gohman (void)apf.convertFromAPInt(x, false, APFloat::rmNearestTiesToEven); 366873328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen Tmp2 = DAG.getConstantFP(apf, VT); 36695b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp3 = DAG.getSetCC(TLI.getSetCCResultType(Node->getOperand(0)), 3670d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 3671d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 3672d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 367301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 3674d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 3675d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 3676c7773bf90ee4398ccdeb847db6330cf4507b832bDan Gohman DAG.getConstant(x, NVT)); 3677456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 3678456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3679d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3680d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 3681d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 3682d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 36831618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 3684fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 36856af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case Expand: { 36866af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng MVT::ValueType VT = Op.getValueType(); 36876eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen MVT::ValueType OVT = Node->getOperand(0).getValueType(); 3688fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // Convert ppcf128 to i32 36896eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (OVT == MVT::ppcf128 && VT == MVT::i32) { 36900bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (Node->getOpcode() == ISD::FP_TO_SINT) { 36910bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, MVT::ppcf128, 36920bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(0), DAG.getValueType(MVT::f64)); 36930bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f64, Result, 36940bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(1)); 36950bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_TO_SINT, VT, Result); 36960bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } else { 3697fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen const uint64_t TwoE31[] = {0x41e0000000000000LL, 0}; 3698fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen APFloat apf = APFloat(APInt(128, 2, TwoE31)); 3699fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Tmp2 = DAG.getConstantFP(apf, OVT); 3700fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // X>=2^31 ? (int)(X-2^31)+0x80000000 : (int)X 3701fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // FIXME: generated code sucks. 3702fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Result = DAG.getNode(ISD::SELECT_CC, VT, Node->getOperand(0), Tmp2, 3703fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::ADD, MVT::i32, 3704fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3705fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FSUB, OVT, 3706fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0), Tmp2)), 3707fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getConstant(0x80000000, MVT::i32)), 3708fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3709fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0)), 3710fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getCondCode(ISD::SETGE)); 3711fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen } 37126eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 37136eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 3714a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman // Convert f32 / f64 to i32 / i64 / i128. 371556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 37166af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng switch (Node->getOpcode()) { 371773328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen case ISD::FP_TO_SINT: { 3718a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (VT == MVT::i32) { 3719a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3720a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F32_I32; 3721a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3722a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F64_I32; 3723a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3724a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i32-to-fp conversion!"); 3725a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i64) { 3726a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3727a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F32_I64; 3728a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3729a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F64_I64; 3730a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f80) 3731a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F80_I64; 3732a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::ppcf128) 3733a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_PPCF128_I64; 3734a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3735a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i64-to-fp conversion!"); 3736a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i128) { 3737a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3738a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F32_I128; 3739a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3740a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F64_I128; 3741a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f80) 3742a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F80_I128; 3743a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::ppcf128) 3744a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_PPCF128_I128; 3745a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3746a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i128-to-fp conversion!"); 3747a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else { 3748a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpectd int-to-fp conversion!"); 374973328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 37506af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 375173328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 375273328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen case ISD::FP_TO_UINT: { 3753a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (VT == MVT::i32) { 3754a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3755a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F32_I32; 3756a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3757a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F64_I32; 3758a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f80) 3759a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F80_I32; 3760a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3761a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i32-to-fp conversion!"); 3762a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i64) { 3763a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3764a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F32_I64; 3765a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3766a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F64_I64; 3767a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f80) 3768a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F80_I64; 3769a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::ppcf128) 3770a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_PPCF128_I64; 3771a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3772a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i64-to-fp conversion!"); 3773a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i128) { 3774a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (OVT == MVT::f32) 3775a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F32_I128; 3776a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f64) 3777a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F64_I128; 3778a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::f80) 3779a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F80_I128; 3780a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (OVT == MVT::ppcf128) 3781a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_PPCF128_I128; 3782a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else 3783a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected i128-to-fp conversion!"); 3784a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else { 3785a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpectd int-to-fp conversion!"); 378673328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 37876af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 378873328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 37896af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng default: assert(0 && "Unreachable!"); 37906af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 37916af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng SDOperand Dummy; 379256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 379356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 37946af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 37956af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 3796fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3797c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3798c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 3799c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 3800fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3801fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3802fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3803d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3804f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case ISD::FP_EXTEND: { 38050bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType DstVT = Op.getValueType(); 38060bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType SrcVT = Op.getOperand(0).getValueType(); 38070bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { 38080bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // The only other way we can lower this is to turn it into a STORE, 38090bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // LOAD pair, targetting a temporary location (a stack slot). 38100bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = EmitStackConvert(Node->getOperand(0), SrcVT, DstVT); 38110bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 3812f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3813f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3814f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 3815f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Legal: 3816f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3817f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3818f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3819f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Promote: 3820f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3821f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Tmp1); 3822f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3823f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3824f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 38250bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 38265411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen case ISD::FP_ROUND: { 38270bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType DstVT = Op.getValueType(); 38280bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType SrcVT = Op.getOperand(0).getValueType(); 38290bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { 38300bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (SrcVT == MVT::ppcf128) { 3831713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen SDOperand Lo; 3832713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen ExpandOp(Node->getOperand(0), Lo, Result); 38330bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Round it the rest of the way (e.g. to f32) if needed. 3834713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen if (DstVT!=MVT::f64) 3835713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen Result = DAG.getNode(ISD::FP_ROUND, DstVT, Result, Op.getOperand(1)); 38360bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 38375411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen } 38380bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // The only other way we can lower this is to turn it into a STORE, 38390bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // LOAD pair, targetting a temporary location (a stack slot). 38400bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = EmitStackConvert(Node->getOperand(0), DstVT, DstVT); 38410bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 3842849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen } 3843f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3844f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 3845f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Legal: 3846f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 38470bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 3848f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3849f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Promote: 3850f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 38510bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, Op.getValueType(), Tmp1, 38520bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(1)); 3853f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3854f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3855f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 38560bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 385713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 38583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 38593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 38603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3861456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 38623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 38633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 38640123b7dcfa9be97588926407163deb8d603487ceScott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 38650123b7dcfa9be97588926407163deb8d603487ceScott Michel TargetLowering::Custom) { 38660123b7dcfa9be97588926407163deb8d603487ceScott Michel Tmp2 = TLI.LowerOperation(Result, DAG); 38670123b7dcfa9be97588926407163deb8d603487ceScott Michel if (Tmp2.Val) { 38680123b7dcfa9be97588926407163deb8d603487ceScott Michel Tmp1 = Tmp2; 38690123b7dcfa9be97588926407163deb8d603487ceScott Michel } 38700123b7dcfa9be97588926407163deb8d603487ceScott Michel } 3871c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 38723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 387303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 387403c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 387513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 3876c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3877c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 387813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 38791713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 38801713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 388113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 388223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 388323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 388403c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 388503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 38861713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 388713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 38881713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 388915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 389015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 38911713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 389203c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 38933e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 38943e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 38950f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 389623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 38970f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 389815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 389945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 390045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 390145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 390255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 390355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 390455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 3905c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 390655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 390755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 390845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 390923993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 391045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 391145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 391245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned BitsDiff = MVT::getSizeInBits(Node->getValueType(0)) - 391345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MVT::getSizeInBits(ExtraVT); 391427ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 391545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 391645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 391745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 391845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 391945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 39202d84c4c7b314242346dea1a7f48563333476a4d5Jim Laskey // The only way we can lower this is to turn it into a TRUNCSTORE, 392145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 392245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 392345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 392445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 392545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 3926a66bb39e9779ce17b7d16e311f4b73fddb2ede2fChris Lattner Result = EmitStackConvert(Node->getOperand(0), ExtraVT, 3927a66bb39e9779ce17b7d16e311f4b73fddb2ede2fChris Lattner Node->getValueType(0)); 392845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 392945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 393045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 393155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 393245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 39330f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 39343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 393536397f50343639ce9a25996f2d790c656791ab92Duncan Sands case ISD::TRAMPOLINE: { 393636397f50343639ce9a25996f2d790c656791ab92Duncan Sands SDOperand Ops[6]; 393736397f50343639ce9a25996f2d790c656791ab92Duncan Sands for (unsigned i = 0; i != 6; ++i) 393836397f50343639ce9a25996f2d790c656791ab92Duncan Sands Ops[i] = LegalizeOp(Node->getOperand(i)); 393936397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = DAG.UpdateNodeOperands(Result, Ops, 6); 394036397f50343639ce9a25996f2d790c656791ab92Duncan Sands // The only option for this node is to custom lower it. 394136397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = TLI.LowerOperation(Result, DAG); 394236397f50343639ce9a25996f2d790c656791ab92Duncan Sands assert(Result.Val && "Should always custom lower!"); 3943f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands 3944f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // Since trampoline produces two values, make sure to remember that we 3945f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // legalized both of them. 3946f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Tmp1 = LegalizeOp(Result.getValue(1)); 3947f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Result = LegalizeOp(Result); 3948f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 0), Result); 3949f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 3950f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands return Op.ResNo ? Tmp1 : Result; 395136397f50343639ce9a25996f2d790c656791ab92Duncan Sands } 39521a0248690aaa9f7baaf1247e5f65a1c0c9e3783cDan Gohman case ISD::FLT_ROUNDS_: { 3953917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 3954917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 3955917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov default: assert(0 && "This action not supported for this op yet!"); 3956917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Custom: 3957917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 3958917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov if (Result.Val) break; 3959917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // Fall Thru 3960917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Legal: 3961917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // If this operation is not supported, lower it to constant 1 3962917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = DAG.getConstant(1, VT); 3963917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov break; 3964917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 3965917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 396641bab0beac2600701af99f63e23a6b65f71468acChris Lattner case ISD::TRAP: { 396766fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 396866fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 396966fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov default: assert(0 && "This action not supported for this op yet!"); 397041bab0beac2600701af99f63e23a6b65f71468acChris Lattner case TargetLowering::Legal: 397141bab0beac2600701af99f63e23a6b65f71468acChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 397241bab0beac2600701af99f63e23a6b65f71468acChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 397341bab0beac2600701af99f63e23a6b65f71468acChris Lattner break; 397466fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov case TargetLowering::Custom: 397566fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 397666fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov if (Result.Val) break; 397766fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov // Fall Thru 397841bab0beac2600701af99f63e23a6b65f71468acChris Lattner case TargetLowering::Expand: 397966fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov // If this operation is not supported, lower it to 'abort()' call 398041bab0beac2600701af99f63e23a6b65f71468acChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 398166fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov TargetLowering::ArgListTy Args; 398266fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov std::pair<SDOperand,SDOperand> CallResult = 398300fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands TLI.LowerCallTo(Tmp1, Type::VoidTy, 398400fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands false, false, false, CallingConv::C, false, 3985034f12ea0864a9cca0a74715d6fb06a8bf1dc775Chris Lattner DAG.getExternalSymbol("abort", TLI.getPointerTy()), 3986034f12ea0864a9cca0a74715d6fb06a8bf1dc775Chris Lattner Args, DAG); 398766fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov Result = CallResult.second; 398866fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov break; 398966fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov } 399041bab0beac2600701af99f63e23a6b65f71468acChris Lattner break; 399166fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov } 399245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 3993456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 39944ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 39954ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 39964ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 3997456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 3998456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 3999456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 40003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 400145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 400245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 400345982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 40043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 40053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 40063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 40078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 40088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 40098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 40108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 401103c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 401203c8546ec57523970874917854a2fb77b1ff598eChris Lattner MVT::ValueType VT = Op.getValueType(); 401371c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 401403c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 401503c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 401603c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(NVT > VT && MVT::isInteger(NVT) == MVT::isInteger(VT) && 401703c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 401803c8546ec57523970874917854a2fb77b1ff598eChris Lattner 401903c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 402003c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 402103c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 402203c8546ec57523970874917854a2fb77b1ff598eChris Lattner 4023dc1adac582fa120861f18ae7221bfe1421fea59fRoman Levenstein DenseMap<SDOperandImpl, SDOperand>::iterator I = PromotedNodes.find(Op); 40246fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 402545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 402603c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 4027d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 4028d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 402903c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 4030e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 403139833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 4032e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 403303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 403403c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 4035fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 4036fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 4037fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 403803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 4039ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 4040ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 4041ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 4042ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 404303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 404403c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 404503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 404603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 404703c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 404803c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 4049ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 405082fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 40515b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel assert(isTypeLegal(TLI.getSetCCResultType(Node->getOperand(0))) 40525922f561c65968ef1865cc8434d191041e450602Nate Begeman && "SetCC type is not legal??"); 40535b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Result = DAG.getNode(ISD::SETCC, 40545922f561c65968ef1865cc8434d191041e450602Nate Begeman TLI.getSetCCResultType(Node->getOperand(0)), 40555922f561c65968ef1865cc8434d191041e450602Nate Begeman Node->getOperand(0), Node->getOperand(1), 40565922f561c65968ef1865cc8434d191041e450602Nate Begeman Node->getOperand(2)); 405782fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 4058fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 405903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 406003c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 406103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 406203c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 406303c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.getValueType() >= NVT && 406403c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 406503c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (Result.getValueType() > NVT) // Truncate to NVT instead of VT 406603c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 406703c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 4068e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 4069e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 4070e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 4071e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 4072e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 407303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 407479e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 407579e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 4076e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 407703c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 407803c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 40798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 40808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 408113c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 40828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 40838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 40848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 40858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 4086456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 40878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 40898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 40908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 40918b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 40928b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 4093595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 409415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 409513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 409623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 409723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 40988b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 40998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 41008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 410135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 41021401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 41031401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 410435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 410535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 410635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 41078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 41088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 41098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 41108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41118b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 41128b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 41138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 41140bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (Node->getConstantOperandVal(1) == 0) { 41150bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Input is legal? Do an FP_ROUND_INREG. 41160bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 41170bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getValueType(VT)); 41180bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } else { 41190bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Just remove the truncate, it isn't affecting the value. 41200bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, NVT, Node->getOperand(0), 41210bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(1)); 41220bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 41238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 41258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 41278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 41288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 413077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 4131456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 41328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 41348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 41358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 41368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 41378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 413815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 413915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 41408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 414123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 414223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 414377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 414477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 41458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41468b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 414777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 414877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 414977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 415077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 415115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 415215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 415377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 41548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 41558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41568b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 41575e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 41585e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 41595e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 41605e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 41615e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 41628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 41638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 41648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 41660b1b9dcf22745b533562134c2f0472098fe085fdEvan Cheng case Expand: 4167456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 41688b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 41708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 41718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 41728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 41738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41748b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 4175d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 4176d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 4177d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 4178d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 4179d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 4180d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 4181c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 4182b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 4183b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 4184d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 4185d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 4186d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4187d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 41888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 41902c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 41912c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 41922c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 41932c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 41942c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 41952c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 41962c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 41972c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 41982c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 41992c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 4200da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 4201da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 4202da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 4203da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 4204da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 4205da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4206456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 420715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 420815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 4209da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 4210da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 42118b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner case ISD::FPOWI: { 42128b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // Promote f32 powi to f64 powi. Note that this could insert a libcall 42138b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // directly as well, which may be better. 42148b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42158b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner assert(Tmp1.getValueType() == NVT); 42168b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FPOWI, NVT, Tmp1, Node->getOperand(1)); 42178b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner if (NoExcessFPPrecision) 42188b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 42198b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner DAG.getValueType(VT)); 42208b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner break; 42218b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner } 42228b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner 4223ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_LCS: { 4224ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp2 = PromoteOp(Node->getOperand(2)); 4225ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp3 = PromoteOp(Node->getOperand(3)); 4226ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Result = DAG.getAtomic(Node->getOpcode(), Node->getOperand(0), 4227ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Node->getOperand(1), Tmp2, Tmp3, 4228ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth cast<AtomicSDNode>(Node)->getVT()); 4229ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth // Remember that we legalized the chain. 4230ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 4231ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 4232ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 4233ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_LAS: 4234ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_SWAP: { 4235ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp2 = PromoteOp(Node->getOperand(2)); 4236ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Result = DAG.getAtomic(Node->getOpcode(), Node->getOperand(0), 4237ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Node->getOperand(1), Tmp2, 4238ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth cast<AtomicSDNode>(Node)->getVT()); 4239ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth // Remember that we legalized the chain. 4240ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 4241ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 4242ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 4243ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth 424403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 424503c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 424603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 42470f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 42488b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 42490f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 42500f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 425101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 42520f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 42530f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42540f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 42550f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 42560f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 425701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 425801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 425901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 426001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 426101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 426201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 426301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 426401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 426501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 426601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 426701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 426801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 42698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 42708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 427101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 427215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 427315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 42740f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 42750f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 42768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 42778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 42788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 42798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 42818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isInteger(NVT)) { 428215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 428315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 428415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 428515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 42868b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 42878b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 42888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 42898b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 42908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isFloatingPoint(NVT) && NoExcessFPPrecision) 429115e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 429215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 42938b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 429401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 429501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 4296a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 429701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 4298ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 42990bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Expand: assert(0 && "not implemented"); 43000bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Legal: Tmp1 = LegalizeOp(Node->getOperand(0)); break; 43010bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Promote: Tmp1 = PromoteOp(Node->getOperand(0)); break; 4302ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 4303ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 43040bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Expand: assert(0 && "not implemented"); 43050bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); break; 43060bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Promote: Tmp2 = PromoteOp(Node->getOperand(1)); break; 4307ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 430801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 430901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 431001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 4311a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 431201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 431301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 431401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 43158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 43168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 43178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 43188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 43198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 43208b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 43218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(MVT::isInteger(NVT) && "Operators don't apply to FP!"); 432223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 432323993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 43248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 43258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 43278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 43288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 4329456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 43308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43318b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 43328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 43338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 433415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 433515e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 4336456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 43378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 43398b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 43408b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 434123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4342456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 43438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43440aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 43450aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 4346456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 4347456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 43480aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 43490aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 43500aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 43510aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 435269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); 435369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, V, 0); 43540aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 43550aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 43560aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 43570aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 43580aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 435969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, V, 0); 43600aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 4361466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 43620aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 43630aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 4364456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 43650aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 43660aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 4367466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 4368466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 436962f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 437062f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 437162f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 437262f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 437355b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 4374b625f2f8960de32bc973092aaee8ac62863006feDan Gohman LD->getMemoryVT(), 4375d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), 4376d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getAlignment()); 43774c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 4378456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 43794c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 4380466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 438103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SELECT: 438203c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 438303c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 4384456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), Tmp2, Tmp3); 438503c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 43869373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 43879373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 43889373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 43899373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 4390456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 43919373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 4392d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 4393d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 4394d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 4395d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 4396d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 4397b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 4398b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), 4399d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 4400d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 4401fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4402fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4403fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4404456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 4405456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 4406fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 4407fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4408456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 4409fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4410fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 4411fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4412fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4413456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 44145b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, 4415b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 4416b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman ISD::SETEQ); 441700b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 4418b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), NVT), Tmp1); 4419fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4420fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4421fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 442200b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 4423b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 4424b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), NVT)); 4425fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4426fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 4427fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 44287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 44297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = PromoteOp(ExpandEXTRACT_SUBVECTOR(Op)); 44306595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 44314aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 44324aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 44334aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 443403c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 443503c8546ec57523970874917854a2fb77b1ff598eChris Lattner 443603c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 4437456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4438456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 4439456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 4440456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4441456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 444203c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 444303c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 444403c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 44453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 44467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 44477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// a legal EXTRACT_VECTOR_ELT operation, scalar code, or memory traffic, 44487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// based on the vector type. The return type of this matches the element type 44497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// of the vector, which may not be legal for the target. 44507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDOperand Op) { 44511597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 44521597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 44531597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 44541597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Vec = Op.getOperand(0); 44557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Idx = Op.getOperand(1); 44561597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 4457e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman MVT::ValueType TVT = Vec.getValueType(); 44587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(TVT); 44591597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 44607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, TVT)) { 44617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman default: assert(0 && "This action is not supported yet!"); 44627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Custom: { 44637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 44647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 44657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Tmp3 = TLI.LowerOperation(Op, DAG); 44667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Tmp3.Val) 44677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Tmp3; 44687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 44697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 44707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Legal: 44717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (isTypeLegal(TVT)) { 44727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 44737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 4474844228a631f47bb39f71f617063831fb83c3843bChristopher Lamb return Op; 44757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 44767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 44777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Expand: 44787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 44797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 44807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 44817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NumElems == 1) { 44821597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 44837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ScalarizeVectorOp(Vec); 44847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (!TLI.isTypeLegal(TVT) && isa<ConstantSDNode>(Idx)) { 448555030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman unsigned NumLoElts = 1 << Log2_32(NumElems-1); 44867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 44871597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Lo, Hi; 44881597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 448955030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman if (CIdx->getValue() < NumLoElts) { 44901597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 44911597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 44921597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 449355030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman Idx = DAG.getConstant(CIdx->getValue() - NumLoElts, 44947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx.getValueType()); 44951597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 44967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 44971597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 44981597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 44997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ExpandEXTRACT_VECTOR_ELT(Op); 45001597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 45017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Store the value to a temporary stack slot, then LOAD the scalar 45027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // element back out. 450385dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(Vec.getValueType()); 45047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Vec, StackPtr, NULL, 0); 45057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Add the offset to the index. 45077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned EltSize = MVT::getSizeInBits(Op.getValueType())/8; 45087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 45097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman DAG.getConstant(EltSize, Idx.getValueType())); 451090bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 451190bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling if (MVT::getSizeInBits(Idx.getValueType()) > 451290bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling MVT::getSizeInBits(TLI.getPointerTy())) 4513f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::TRUNCATE, TLI.getPointerTy(), Idx); 451490bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling else 4515f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::ZERO_EXTEND, TLI.getPointerTy(), Idx); 451690bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 45177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 45187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 45201597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 45217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Op; 45221597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 45231597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 45247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_SUBVECTOR - Expand a EXTRACT_SUBVECTOR operation. For now 45256595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman/// we assume the operation can be split if it is not already legal. 45267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_SUBVECTOR(SDOperand Op) { 45276595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // We know that operand #0 is the Vec vector. For now we assume the index 45286595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // is a constant and that the extracted result is a supported hardware type. 45296595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Vec = Op.getOperand(0); 45306595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Idx = LegalizeOp(Op.getOperand(1)); 45316595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 45327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(Vec.getValueType()); 45336595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 45346595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (NumElems == MVT::getVectorNumElements(Op.getValueType())) { 45356595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // This must be an access of the desired vector length. Return it. 45367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Vec; 45376595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 45386595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 45396595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 45406595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Lo, Hi; 45416595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SplitVectorOp(Vec, Lo, Hi); 45426595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (CIdx->getValue() < NumElems/2) { 45436595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Lo; 45446595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } else { 45456595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Hi; 45466595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 45476595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 45486595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 45496595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // It's now an extract from the appropriate high or low part. Recurse. 45506595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 45517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return ExpandEXTRACT_SUBVECTOR(Op); 45524aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 45534aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 4554750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 4555750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 4556750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 4557750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 4558750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 4559750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 4560750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 4561750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 4562750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 4563638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen SDOperand Tmp1, Tmp2, Tmp3, Result; 4564750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4565750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 4566750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 4567750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 4568750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 4569750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4570750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 4571750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 4572750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 4573750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4574750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 4575750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (MVT::isInteger(LHS.getValueType())) { 4576750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType VT = LHS.getValueType(); 4577750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 4578750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4579750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 4580750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 4581750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 4582750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 4583750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 4584750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 4585750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4586750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4587750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 4588750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 4589750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 4590750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 4591750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 4592750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 4593750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 4594750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4595750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 4596750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4597750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4598750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4599750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4600750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4601750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 4602750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4603750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 4604750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4605750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4606750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4607750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4608750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 46092b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case Expand: { 46102b49c500838666dd0186d021389d4dd70ffda240Evan Cheng MVT::ValueType VT = LHS.getValueType(); 46112b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 46122b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Expand into one or more soft-fp libcall(s). 461356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC1, LC2 = RTLIB::UNKNOWN_LIBCALL; 46142b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 46152b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETEQ: 46162b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOEQ: 461756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 46182b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46192b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETNE: 46202b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUNE: 462156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64; 46222b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46232b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGE: 46242b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGE: 462556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 46262b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46272b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLT: 46282b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLT: 462956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 46302b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46312b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLE: 46322b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLE: 463356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 46342b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46352b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGT: 46362b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGT: 463756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 46382b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46392b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUO: 4640d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 4641d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng break; 46422b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETO: 46435efdecc030f1a71cdb5b49d97c6c1c45e68ff731Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64; 46442b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46452b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: 464656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 46472b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 46482b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETONE: 46492b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // SETONE = SETOLT | SETOGT 465056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 46512b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Fallthrough 46522b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGT: 465356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 46542b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46552b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGE: 465656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 46572b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46582b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULT: 465956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 46602b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46612b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULE: 466256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 46632b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 466456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SETUEQ: 466556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 466656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 46672b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: assert(0 && "Unsupported FP setcc!"); 46682b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 46692b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 46702b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 46712b49c500838666dd0186d021389d4dd70ffda240Evan Cheng SDOperand Dummy; 467256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Tmp1 = ExpandLibCall(TLI.getLibcallName(LC1), 467347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4674b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 46752b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getConstant(0, MVT::i32); 4676d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng CC = DAG.getCondCode(TLI.getCmpLibcallCC(LC1)); 467756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng if (LC2 != RTLIB::UNKNOWN_LIBCALL) { 46785b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(Tmp1), Tmp1, Tmp2, 46795922f561c65968ef1865cc8434d191041e450602Nate Begeman CC); 468056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LHS = ExpandLibCall(TLI.getLibcallName(LC2), 468147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4682b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 46835b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(LHS), LHS, Tmp2, 4684d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng DAG.getCondCode(TLI.getCmpLibcallCC(LC2))); 46852b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 46862b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = SDOperand(); 46872b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 46882b49c500838666dd0186d021389d4dd70ffda240Evan Cheng LHS = Tmp1; 46892b49c500838666dd0186d021389d4dd70ffda240Evan Cheng RHS = Tmp2; 46902b49c500838666dd0186d021389d4dd70ffda240Evan Cheng return; 46912b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 46922b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 4693750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 4694750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 4695638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ExpandOp(RHS, RHSLo, RHSHi); 4696638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); 4697638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4698638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen if (VT==MVT::ppcf128) { 4699638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FIXME: This generated code sucks. We want to generate 4700638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, hi1, hi2 4701638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // BNE crN, L: 4702638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, lo1, lo2 4703638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // The following can be improved, but not that much. 47045b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, ISD::SETEQ); 47055b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, CCCode); 4706638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp3 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 47075b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, ISD::SETNE); 47085b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, CCCode); 4709638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 4710638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp3); 4711638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = SDOperand(); 4712638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen break; 4713638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen } 4714638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4715638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen switch (CCCode) { 4716750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4717750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4718750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 4719750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 4720750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 4721750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 4722750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 4723750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 4724750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4725750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4726750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4727750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 4728750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 4729750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 4730750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 4731750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4732750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 4733750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 4734750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 4735750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 4736750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 4737002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman CST->isNullValue()) || // X < 0 4738750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 4739750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 4740750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 4741750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 4742750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4743750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4744750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4745750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 4746750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 47472e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng switch (CCCode) { 4748750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 4749750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4750750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 4751750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4752750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 4753750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4754750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 4755750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4756750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 4757750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4758750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4759750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 4760750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 4761750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 4762750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4763750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 4764750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 47652e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 47665b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, 47675922f561c65968ef1865cc8434d191041e450602Nate Begeman LowCC, false, DagCombineInfo); 47682e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp1.Val) 47695b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, LowCC); 47705b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, 47712e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode, false, DagCombineInfo); 47722e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp2.Val) 47735b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(LHSHi), LHSHi, 47745922f561c65968ef1865cc8434d191041e450602Nate Begeman RHSHi,CC); 47752e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng 47762e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.Val); 47772e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.Val); 4778002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((Tmp1C && Tmp1C->isNullValue()) || 4779002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->isNullValue() && 47802e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 47812e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 4782002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->getAPIntValue() == 1 && 47832e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 47842e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 47852e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // low part is known false, returns high part. 47862e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LE / GE, if high part is known false, ignore the low part. 47872e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LT / GT, if high part is known true, ignore the low part. 47882e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Tmp2; 47892e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 47902e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } else { 47915b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Result = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, 47922e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::SETEQ, false, DagCombineInfo); 47932e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Result.Val) 47945b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel Result=DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, 47955922f561c65968ef1865cc8434d191041e450602Nate Begeman ISD::SETEQ); 47962e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 47972e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result, Tmp1, Tmp2)); 47982e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Result; 47992e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 48002e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } 4801750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4802750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 48032b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 4804750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 4805750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 4806750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 4807750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 48081401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// EmitStackConvert - Emit a store/load combination to the stack. This stores 48091401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// SrcOp to a stack slot of type SlotVT, truncating it if needed. It then does 48101401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// a load from the stack slot to DestVT, extending it if needed. 48111401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// The resultant code need not be legal. 48121401d15c99b284ead81b8476a6db95328c5f28fdChris LattnerSDOperand SelectionDAGLegalize::EmitStackConvert(SDOperand SrcOp, 48131401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner MVT::ValueType SlotVT, 48141401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner MVT::ValueType DestVT) { 481535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 48161401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner SDOperand FIPtr = DAG.CreateStackTemporary(SlotVT); 48171401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 4818bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(FIPtr); 481969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman int SPFI = StackPtrFI->getIndex(); 482069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 48211401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner unsigned SrcSize = MVT::getSizeInBits(SrcOp.getValueType()); 48221401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner unsigned SlotSize = MVT::getSizeInBits(SlotVT); 48231401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner unsigned DestSize = MVT::getSizeInBits(DestVT); 48241401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 48251401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // Emit a store to the stack slot. Use a truncstore if the input value is 48261401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // later than DestVT. 48271401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner SDOperand Store; 48281401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SrcSize > SlotSize) 482969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Store = DAG.getTruncStore(DAG.getEntryNode(), SrcOp, FIPtr, 48303069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 483169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SPFI, SlotVT); 48321401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner else { 48331401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SrcSize == SlotSize && "Invalid store"); 483469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, 48353069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 483669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SPFI, SlotVT); 48371401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner } 483835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 483935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 48401401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SlotSize == DestSize) 48411401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0); 48421401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 48431401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SlotSize < DestSize && "Unknown extension!"); 48441401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner return DAG.getExtLoad(ISD::EXTLOAD, DestVT, Store, FIPtr, NULL, 0, SlotVT); 484535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 484635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 48474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDOperand SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 48484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 48494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 485085dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(Node->getValueType(0)); 485169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 4852bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(StackPtr); 485369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman int SPFI = StackPtrFI->getIndex(); 485469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 4855786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 48563069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), SPFI); 485769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, 48583069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), SPFI); 48594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 48604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 48614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 4862ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 486307a96765daedf180a7102d39fe56c499878312b7Dan Gohman/// support the operation, but do support the resultant vector type. 4864ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 4865ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4866ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 486787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 4868033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 4869ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 487087100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 4871f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 4872f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // FIXME: it would be far nicer to change this into map<SDOperand,uint64_t> 4873f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // and use a bitmask instead of a list of elements. 4874033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> > Values; 4875033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 48762eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 48772eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 48782eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 48792eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 48802eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4881033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 4882033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand V = Node->getOperand(i); 488389a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 4884033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 4885ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 4886033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 488787100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 48882eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 48892eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 48902eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 48912eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 48922eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 48932eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 4894ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4895ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4896ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 4897ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 4898ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 4899ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 4900ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 4901ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4902ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 4903ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4904ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 49052eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 4906ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 4907ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4908ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner const Type *OpNTy = 4909ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getTypeForValueType(Node->getOperand(0).getValueType()); 4910ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 4911033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 4912ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 4913ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 4914f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen CV.push_back(ConstantFP::get(OpNTy, V->getValueAPF())); 4915ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 4916ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 4917b83eb6447ba155342598f0fabe1f08f5baa9164aReid Spencer CV.push_back(ConstantInt::get(OpNTy, V->getValue())); 4918ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 4919ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 4920ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 4921ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4922ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 49239d6565a5b1fbc4286d6ee638d8f47a3171a9ed7eReid Spencer Constant *CP = ConstantVector::get(CV); 4924ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 492569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, 49263069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 4927ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 49282eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 49292eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 49302eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 49312eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::ValueType MaskVT = 49322eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::getIntVectorWithNumElements(NumElems); 493351eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman SDOperand Zero = DAG.getConstant(0, MVT::getVectorElementType(MaskVT)); 49342eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner std::vector<SDOperand> ZeroVec(NumElems, Zero); 4935bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4936bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 4937033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 49382eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 49394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 49402eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 49412eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand LowValVec = 49422eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 49432eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 49442eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 49452eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 49462eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 49472eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 49482eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 49492eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 49502eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4951033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 4952033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 4953033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 4954f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // Get the two values in deterministic order. 4955f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner SDOperand Val1 = Node->getOperand(1); 4956f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner SDOperand Val2; 4957f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::map<SDOperand, std::vector<unsigned> >::iterator MI = Values.begin(); 4958f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner if (MI->first != Val1) 4959f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val2 = MI->first; 4960f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner else 4961f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val2 = (++MI)->first; 4962f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 4963f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // If Val1 is an undef, make sure end ends up as Val2, to ensure that our 4964f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // vector shuffle has the undef vector on the RHS. 4965f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner if (Val1.getOpcode() == ISD::UNDEF) 4966f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::swap(Val1, Val2); 4967f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 4968033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 4969f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner MVT::ValueType MaskVT = MVT::getIntVectorWithNumElements(NumElems); 4970f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner MVT::ValueType MaskEltVT = MVT::getVectorElementType(MaskVT); 4971033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> MaskVec(NumElems); 4972f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 4973f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // Set elements of the shuffle mask for Val1. 4974f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::vector<unsigned> &Val1Elts = Values[Val1]; 4975f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner for (unsigned i = 0, e = Val1Elts.size(); i != e; ++i) 4976f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner MaskVec[Val1Elts[i]] = DAG.getConstant(0, MaskEltVT); 4977f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 4978f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // Set elements of the shuffle mask for Val2. 4979f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner std::vector<unsigned> &Val2Elts = Values[Val2]; 4980f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner for (unsigned i = 0, e = Val2Elts.size(); i != e; ++i) 4981f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner if (Val2.getOpcode() != ISD::UNDEF) 4982f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner MaskVec[Val2Elts[i]] = DAG.getConstant(NumElems, MaskEltVT); 4983f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner else 4984f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner MaskVec[Val2Elts[i]] = DAG.getNode(ISD::UNDEF, MaskEltVT); 4985f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner 4986bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4987bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 4988033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4989f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner // If the target supports SCALAR_TO_VECTOR and this shuffle mask, use it. 49904352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 49914352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 4992f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val1 = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), Val1); 4993f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner Val2 = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), Val2); 4994f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner SDOperand Ops[] = { Val1, Val2, ShuffleMask }; 4995033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 4996033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 4997f9d95c8835bc4f9072c33e1f9ebaa581a4d3268dChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), Ops, 3); 4998033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 4999033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 5000ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5001ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 5002ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 5003ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 5004ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 5005ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 500685dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand FIPtr = DAG.CreateStackTemporary(VT); 5007ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5008ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 5009bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Stores; 5010ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned TypeByteSize = 5011ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getSizeInBits(Node->getOperand(0).getValueType())/8; 5012ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 5013ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 5014ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 5015ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 5016ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5017841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 5018ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5019ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 5020ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 5021ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5022786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 50238b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0)); 5024ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 5025ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5026ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 5027ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 5028bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 5029bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 5030ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 5031ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 5032ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5033ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 5034466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 5035ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 5036ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 50375b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 50385b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 50395b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 50405b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 50415b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 50425b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 50435b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 5044bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { LHSL, LHSH, Amt }; 5045f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner MVT::ValueType VT = LHSL.getValueType(); 5046f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 50475b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 50485b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 50495b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 50505b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 5051e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 5052e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 5053e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 5054e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 5055e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 5056e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 5057e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 5058e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 5059f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 5060e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(Op.getValueType()); 5061f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 5062f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman MVT::ValueType ShTy = ShAmt.getValueType(); 506391dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman unsigned ShBits = MVT::getSizeInBits(ShTy); 5064f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned VTBits = MVT::getSizeInBits(Op.getValueType()); 5065f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned NVTBits = MVT::getSizeInBits(NVT); 5066f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 50677a3c85583d523edb90aa957a02385254957c6e37Chris Lattner // Handle the case when Amt is an immediate. 5068f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 5069f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 5070f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 5071f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 5072f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 5073f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 5074f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 5075f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5076f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5077f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5078f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5079f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5080f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 5081ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5082ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 5083ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 5084f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5085f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 5086f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 5087f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 5088f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 5089f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5090f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5091f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 5092f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5093f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5094f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5095f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5096f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 5097f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5098ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5099ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 5100ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 5101f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5102f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 5103f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 5104f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 5105f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 5106f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5107f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5108f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 5109f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5110edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 5111f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 5112f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5113edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 5114f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 5115edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 5116f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 5117ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5118ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 5119edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 5120ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 5121f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5122f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 5123f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 5124f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 5125f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 5126f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5127f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5128f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5129f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 51300ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51310ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 51320ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 513391dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman APInt Mask = APInt::getHighBitsSet(ShBits, ShBits - Log2_32(NVTBits)); 513491dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman APInt KnownZero, KnownOne; 5135ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman DAG.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 51360ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51379e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // If we know that if any of the high bits of the shift amount are one, then 51389e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // we can do this as a couple of simple shifts. 513991dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman if (KnownOne.intersects(Mask)) { 51400ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 51410ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 514291dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman DAG.getConstant(~Mask, Amt.getValueType())); 51430ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51440ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 51450ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 51460ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 51470ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 51480ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 51490ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 51500ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 51510ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51520ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 51530ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 51540ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 51550ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51560ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 51570ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 51580ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 51590ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 51600ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51610ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 51620ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 51630ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51649e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // If we know that the high bits of the shift amount are all zero, then we can 51659e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // do this as a couple of simple shifts. 51669e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman if ((KnownZero & Mask) == Mask) { 51670ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 51680ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 51690ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 51700ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 51710ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51720ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 51730ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 51740ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 51750ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 51760ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 51770ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 51780ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 51790ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 51800ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 51810ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51820ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 51830ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 51840ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 51850ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 51860ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 51870ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51880ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 51890ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 51900ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 51910ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 51920ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 51930ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51940ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 51950ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 51960ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 5197f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 5198e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 519977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 52009c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 520177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 520277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 520377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 520477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 520577e77a6aa0ab25a812947aed477220dd11220a18Chris LattnerSDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node, 520647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned, SDOperand &Hi) { 52076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 52086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 52096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 52106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 52116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 52126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 521377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 521447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 521577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 521677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner MVT::ValueType ArgVT = Node->getOperand(i).getValueType(); 521777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *ArgTy = MVT::getTypeForValueType(ArgVT); 521847857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; 5219d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.isSExt = isSigned; 522000fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands Entry.isZExt = !isSigned; 522147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 522277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 522377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Callee = DAG.getExternalSymbol(Name, TLI.getPointerTy()); 5224edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 52250d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 522677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *RetTy = MVT::getTypeForValueType(Node->getValueType(0)); 52270d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 522800fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands TLI.LowerCallTo(InChain, RetTy, isSigned, !isSigned, false, CallingConv::C, 522900fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands false, Callee, Args, DAG); 52300d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 52316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 52326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 52336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 52346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 523599c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 52360d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 523777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 523877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 5239456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 524099c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 524177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 524299c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 524399c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 524477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 524522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 524622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 524722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 524822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 52494c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// ExpandIntToFP - Expand a [US]INT_TO_FP operation. 52504c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// 525122cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 525222cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) { 5253d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman MVT::ValueType SourceVT = Source.getValueType(); 5254034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman bool ExpandSource = getTypeAction(SourceVT) == Expand; 525522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 52569845eb5b033db5ba5213d0b8dba958c1e168ccd3Evan Cheng // Special case for i32 source to take advantage of UINTTOFP_I32_F32, etc. 52579845eb5b033db5ba5213d0b8dba958c1e168ccd3Evan Cheng if (!isSigned && SourceVT != MVT::i32) { 525834bc178e4da0105f3a50a00cc06ca1193c529bcbDan Gohman // The integer value loaded will be incorrectly if the 'sign bit' of the 525922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 526022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 5261034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman SDOperand Hi; 5262034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman if (ExpandSource) { 5263034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman SDOperand Lo; 5264034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman ExpandOp(Source, Lo, Hi); 5265034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman Source = DAG.getNode(ISD::BUILD_PAIR, SourceVT, Lo, Hi); 5266034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman } else { 5267034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman // The comparison for the sign bit will use the entire operand. 5268034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman Hi = Source; 5269034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman } 527022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 527122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 527222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 5273034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman SDOperand SignedConv = ExpandIntToFP(true, DestTy, Source); 527422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 52755b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultType(Hi), Hi, 527622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 527722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 52780bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner SDOperand Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); 527922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 528022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 528122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 528222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 528334bc178e4da0105f3a50a00cc06ca1193c529bcbDan Gohman static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 528422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 528522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 528622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 528722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 528822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 528969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 52903069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 5291118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen else if (MVT::getSizeInBits(DestTy) > MVT::getSizeInBits(MVT::f32)) 52924c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // FIXME: Avoid the extend by construction the right constantpool? 5293118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, DestTy, DAG.getEntryNode(), 529469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman CPIdx, 52953069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0, 529669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman MVT::f32); 52979e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen else 52989e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Unexpected conversion"); 52999e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen 53004c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng MVT::ValueType SCVT = SignedConv.getValueType(); 53014c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (SCVT != DestTy) { 53024c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // Destination type needs to be expanded as well. The FADD now we are 53034c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // constructing will be expanded into a libcall. 53044c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (MVT::getSizeInBits(SCVT) != MVT::getSizeInBits(DestTy)) { 5305d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman assert(MVT::getSizeInBits(SCVT) * 2 == MVT::getSizeInBits(DestTy)); 5306d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman SignedConv = DAG.getNode(ISD::BUILD_PAIR, DestTy, 53074c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv, SignedConv.getValue(1)); 53084c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 53094c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BIT_CONVERT, DestTy, SignedConv); 53104c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 531122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 531222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 531322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 531422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 5315d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman switch (TLI.getOperationAction(ISD::SINT_TO_FP, SourceVT)) { 531622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 531722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 531822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 531922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 532022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 532122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 532222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 532322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 532422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 532522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 532622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 532722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 532822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 532922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 533022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 5331034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman if (ExpandSource) { 5332034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman SDOperand SrcLo, SrcHi; 5333034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman ExpandOp(Source, SrcLo, SrcHi); 5334034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman Source = DAG.getNode(ISD::BUILD_PAIR, SourceVT, SrcLo, SrcHi); 5335034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman } 533622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 533756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 5338110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng if (SourceVT == MVT::i32) { 5339110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng if (DestTy == MVT::f32) 5340db45d1c649aa2e7c71accd8ad460aa764886cab3Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F32 : RTLIB::UINTTOFP_I32_F32; 5341110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng else { 5342110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng assert(DestTy == MVT::f64 && "Unknown fp value type!"); 5343110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F64 : RTLIB::UINTTOFP_I32_F64; 5344110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng } 5345110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng } else if (SourceVT == MVT::i64) { 5346d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman if (DestTy == MVT::f32) 5347d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I64_F32; 5348034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman else if (DestTy == MVT::f64) 5349d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I64_F64; 5350034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman else if (DestTy == MVT::f80) 5351034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman LC = RTLIB::SINTTOFP_I64_F80; 5352034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman else { 5353034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman assert(DestTy == MVT::ppcf128 && "Unknown fp value type!"); 5354034f60ed24c53c1e37f7695965f782faec2dff2bDan Gohman LC = RTLIB::SINTTOFP_I64_PPCF128; 5355d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman } 5356d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman } else if (SourceVT == MVT::i128) { 5357d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman if (DestTy == MVT::f32) 5358d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I128_F32; 5359d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman else if (DestTy == MVT::f64) 5360d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I128_F64; 5361d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman else if (DestTy == MVT::f80) 5362d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I128_F80; 5363d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman else { 5364d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman assert(DestTy == MVT::ppcf128 && "Unknown fp value type!"); 5365d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman LC = RTLIB::SINTTOFP_I128_PPCF128; 5366d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman } 5367d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman } else { 5368d91446de7a89a22c8ea1cbfd40fe2528467a4ccbDan Gohman assert(0 && "Unknown int value type"); 536922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 53706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 53714c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(TLI.getLibcallName(LC) && "Don't know how to expand this SINT_TO_FP!"); 53726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 5373a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman SDOperand HiPart; 5374a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman SDOperand Result = ExpandLibCall(TLI.getLibcallName(LC), Source.Val, isSigned, 5375a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman HiPart); 5376110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng if (Result.getValueType() != DestTy && HiPart.Val) 5377a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Result = DAG.getNode(ISD::BUILD_PAIR, DestTy, Result, HiPart); 5378a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman return Result; 537922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 538022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 538122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 538222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 538322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 538422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 538522cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 538622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 538722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT) { 538822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 538922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 539022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 539123594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner // Get the stack frame index of a 8 byte buffer. 539223594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner SDOperand StackSlot = DAG.CreateStackTemporary(MVT::f64); 539323594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner 539422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 539522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 539622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 5397408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Hi = StackSlot; 5398408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 5399408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 5400408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 5401408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 540222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 540322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 540422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 540522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 540622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 540722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 540822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 540922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 541022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 541122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 5412786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store1 = DAG.getStore(DAG.getEntryNode(), 54138b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op0Mapped, Lo, NULL, 0); 541422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 541522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 541622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 54178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); 541822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 5419466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 542022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 542122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 542222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 542322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 542422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 542522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 542622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 542722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 542822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 542922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 543022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 543122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 543222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 5433118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen } else if (MVT::getSizeInBits(DestVT) < MVT::getSizeInBits(MVT::f64)) { 54340bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, DestVT, Sub, 54350bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(0)); 5436118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen } else if (MVT::getSizeInBits(DestVT) > MVT::getSizeInBits(MVT::f64)) { 5437118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, DestVT, Sub); 543822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 543922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 544022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 544122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 544222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 544322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 54445b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultType(Op0), Op0, 544522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 544622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 54470bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner SDOperand Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); 544822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 544922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 545022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 545122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 545222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 545322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 545422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 545522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Op0.getValueType()) { 545622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 545722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 545822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 545922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 546022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 546122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 546222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 546347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 546422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 546522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 546622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 546722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 546822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 546969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 54703069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 547122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 547269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = 547369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, DestVT, 547469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman DAG.getEntryNode(), CPIdx, 54753069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0, 547669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman MVT::f32)); 547722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 547822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 547922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 548022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 548122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 548222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 548322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 548422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 548522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 548622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 548722cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 548822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 548922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 549022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 549122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewInTy = LegalOp.getValueType(); 549222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 549322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 549422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 549522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 549622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 549722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy = (MVT::ValueType)(NewInTy+1); 549822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewInTy) && "Ran out of possibilities!"); 549922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 550022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 550122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 550222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 550322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 550422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 550522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 550622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 550722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 550822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 550922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 551022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 551122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 551222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 551322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 551422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 551522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 551622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 551722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 551822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 551922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 552022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 552122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 552222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 552322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 552422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 552522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 552622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 552722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 552822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 552922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 553022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 553122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 553222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 553322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 553422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 553577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 553677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 553722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 553822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 553922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 554022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 554122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 554222cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 554322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 554422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 554522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 554622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewOutTy = DestVT; 55479c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 554822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 5549e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 555022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 555122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 555222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewOutTy = (MVT::ValueType)(NewOutTy+1); 555322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewOutTy) && "Ran out of possibilities!"); 555466de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 555522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 555622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 555722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 555822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 555922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 556022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 556122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 556222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 556322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 556422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 556522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 556622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 5567e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 556822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 556922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 557022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 557122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 557222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 557322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 557422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 557522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 557622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 557722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 5578e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 557922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 55800d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 558122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 5582a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 5583a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 558427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 558527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Okay, we found the operation and type to use. 558627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner SDOperand Operation = DAG.getNode(OpToUse, NewOutTy, LegalOp); 558727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 558827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // If the operation produces an invalid type, it must be custom lowered. Use 558927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // the target lowering hooks to expand it. Just keep the low part of the 559027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // expanded operation, we know that we're truncating anyway. 559127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner if (getTypeAction(NewOutTy) == Expand) { 559227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner Operation = SDOperand(TLI.ExpandOperationResult(Operation.Val, DAG), 0); 559327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Operation.Val && "Didn't return anything"); 559427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 559527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 559627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Truncate the result of the extended FP_TO_*INT operation to the desired 559727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // size. 559827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, Operation); 559922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 560013689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 560122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 560222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 560322cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 560422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 560522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType SHVT = TLI.getShiftAmountTy(); 560622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 560722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (VT) { 560822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 560922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 561022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 561122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 561222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 561322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 561422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 561522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 561622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 561722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 561822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 561922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 562022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 562122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 562222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 562322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 562422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 562522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 562622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 562722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 562822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 562922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 563022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 563122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 563222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 563322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 563422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 563522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 563622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 563722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 563822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 563922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 564022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 564122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 564222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 564322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 564422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 56450d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 564677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 5647edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 564822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 564922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 565022cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 565122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 565222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 565322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 565422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 565522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 565622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 565722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 565822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 565922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 566022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 5661b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 566222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 566322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 566422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 566522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 566622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 566722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 566822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 566922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 567022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 567122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 567222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 567322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 567422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 567522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 567622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 567722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 567822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 567922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 568022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 568122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 568222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 568322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 5684b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 568522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 568622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 568722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 568822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 568922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 569022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 569122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 569222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 569322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 569422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 569522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 569622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 569722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 569822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 569922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 570022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 570122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 570222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 570322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 570422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 570522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 5706b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), VT), 570722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 570822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 570922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 571022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 571122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 5712e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 57133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 57143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 57153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 57163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 57173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 57183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 57193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = Op.getValueType(); 572071c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 57213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 57223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 57231a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng assert(((MVT::isInteger(NVT) && NVT < VT) || MVT::isFloatingPoint(VT) || 57247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::isVector(VT)) && 57253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Cannot expand to FP value or to larger int value!"); 57263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 57276fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 5728dc1adac582fa120861f18ae7221bfe1421fea59fRoman Levenstein DenseMap<SDOperandImpl, std::pair<SDOperand, SDOperand> >::iterator I 57296fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 57306fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 57316fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 57326fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 57336fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 57343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 57353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 57363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 5737348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 5738348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 57396eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen case ISD::FP_ROUND_INREG: 57406eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (VT == MVT::ppcf128 && 57416eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TLI.getOperationAction(ISD::FP_ROUND_INREG, VT) == 57426eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TargetLowering::Custom) { 5743fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen SDOperand SrcLo, SrcHi, Src; 5744fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen ExpandOp(Op.getOperand(0), SrcLo, SrcHi); 5745fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Src = DAG.getNode(ISD::BUILD_PAIR, VT, SrcLo, SrcHi); 5746fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen SDOperand Result = TLI.LowerOperation( 5747fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_ROUND_INREG, VT, Src, Op.getOperand(1)), DAG); 57486eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen assert(Result.Val->getOpcode() == ISD::BUILD_PAIR); 57496eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Lo = Result.Val->getOperand(0); 57506eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Hi = Result.Val->getOperand(1); 57516eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 57526eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 57536eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen // fall through 5754348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 5755e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 575639833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 5757e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 57583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 57593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 57601953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman case ISD::EXTRACT_ELEMENT: 57611953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman ExpandOp(Node->getOperand(0), Lo, Hi); 57621953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 57631953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman return ExpandOp(Hi, Lo, Hi); 576418714aeaed2a74bfc85dc5abe24a9193882406c5Dan Gohman return ExpandOp(Lo, Lo, Hi); 576525f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen case ISD::EXTRACT_VECTOR_ELT: 576625f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen assert(VT==MVT::i64 && "Do not know how to expand this operator!"); 576725f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen // ExpandEXTRACT_VECTOR_ELT tolerates invalid result types. 576825f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen Lo = ExpandEXTRACT_VECTOR_ELT(Op); 576925f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen return ExpandOp(Lo, Lo, Hi); 5770fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 5771aa975c1c4785a1d7930f2cd1026cb40ce54d21e4Evan Cheng NVT = TLI.getTypeToExpandTo(VT); 5772fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 5773fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 5774fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 57753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 5776050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman unsigned NVTBits = MVT::getSizeInBits(NVT); 5777050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman const APInt &Cst = cast<ConstantSDNode>(Node)->getAPIntValue(); 5778050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman Lo = DAG.getConstant(APInt(Cst).trunc(NVTBits), NVT); 5779050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman Hi = DAG.getConstant(Cst.lshr(NVTBits).trunc(NVTBits), NVT); 57803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 57813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5782004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng case ISD::ConstantFP: { 5783004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 5784a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen if (CFP->getValueType(0) == MVT::ppcf128) { 5785a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen APInt api = CFP->getValueAPF().convertToAPInt(); 5786a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[1])), 5787a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5788a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Hi = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[0])), 5789a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5790a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen break; 5791a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen } 5792279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Lo = ExpandConstantFP(CFP, false, DAG, TLI); 57939f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 57949f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5795004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5796004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5797d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 57988137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 57998137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 58008137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 5801d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 580227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 580327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::MERGE_VALUES: 5804c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner if (Node->getNumValues() == 1) { 5805c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 5806c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner break; 5807c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner } 580827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // FIXME: For now only expand i64,chain = MERGE_VALUES (x, y) 580927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Op.ResNo == 0 && Node->getNumValues() == 2 && 581027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner Op.getValue(1).getValueType() == MVT::Other && 581127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner "unhandled MERGE_VALUES"); 581227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 581327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Remember that we legalized the chain. 581427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Op.getOperand(1))); 581527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner break; 581658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 581758f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 581858f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 58194bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 58204bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 58214bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 58224bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 58234bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 582458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 582558f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner DAG.getConstant(MVT::getSizeInBits(NVT)-1, 582658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 582758f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 5828d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 5829d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 5830d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 5831d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 5832d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 5833d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 5834d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 5835d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 5836d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 5837edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 5838edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 58399b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 58409b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 58419b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 5842edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 5843edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 5844edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 584539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 584639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 58473becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 584839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 584939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 58505b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultType(HLZ), HLZ, BitsC, 58517cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 585239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 585339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 585439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 585539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 585639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 585739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 585839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 585939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 586039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 586139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 58623becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 586339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 586439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 58655b8f82e35b51bf007de07a7ca9347d804084ddf8Scott Michel SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultType(LTZ), LTZ, BitsC, 58667cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 586739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 586839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 586939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 587039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 587139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 587239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 587339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 5874edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 5875acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 58768137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 58778137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 5878acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 5879acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 5880acc398c195a697795bff3245943d104eb19192b9Nate Begeman 5881acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 58828137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 5883acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 58840753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 5885acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 5886acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 5887acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 5888acc398c195a697795bff3245943d104eb19192b9Nate Begeman 58893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 5890466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 5891466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ch = LD->getChain(); // Legalize the chain. 5892466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ptr = LD->getBasePtr(); // Legalize the pointer. 5893466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 5894d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = LD->getSrcValueOffset(); 5895d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = LD->getAlignment(); 5896d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = LD->isVolatile(); 5897466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5898466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 5899d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5900d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5901004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 5902004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // f32->i32 or f64->i64 one to one expansion. 5903004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Remember that we legalized the chain. 5904004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 59059f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng // Recursively expand the new load. 59069f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(NVT) == Expand) 59079f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5908004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5909004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5910466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5911466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 5912466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned IncrementSize = MVT::getSizeInBits(Lo.getValueType())/8; 5913466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 59140bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 59157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 5916dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 5917d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Hi = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5918d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5919466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5920466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 5921466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 5922466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5923466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 5924466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5925466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5926466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 59270753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 5928466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 5929466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 5930b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType EVT = LD->getMemoryVT(); 5931548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng 5932b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen if ((VT == MVT::f64 && EVT == MVT::f32) || 5933b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen (VT == MVT::ppcf128 && (EVT==MVT::f64 || EVT==MVT::f32))) { 5934548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 5935548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng SDOperand Load = DAG.getLoad(EVT, Ch, Ptr, LD->getSrcValue(), 5936d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5937548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // Remember that we legalized the chain. 5938548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Load.getValue(1))); 5939548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); 5940548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng break; 5941548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng } 5942466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5943466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 5944466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), 5945d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5946466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 5947466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, LD->getSrcValue(), 5948d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, EVT, isVolatile, 5949d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 5950466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5951466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5952466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 5953466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5954466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 5955466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 5956466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 5957466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 5958466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 5959466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 5960466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 5961466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 5962466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 5963466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 5964466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 5965466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 5966466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 5967466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 59683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 59693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 59703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 59713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 59723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 59733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 59743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 59753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 59763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 59773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 59783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 59793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 59803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 5981456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 59823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 59833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 598419103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 598519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 5986456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 598719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 598819103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 59893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 59903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 59919373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 59929373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 59939373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 59949373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 599519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 599619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 59979373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 59989373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 599919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 600019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 600119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Node->getOperand(1), TH, FH, Node->getOperand(4)); 60029373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 60039373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 60048137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 600513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 60068137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 600713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 600813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 600913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 60103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 60113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 60123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 60138137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 6014edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 60153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 60163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 60172dad454af674cb41a14a85ad6ce5c85c43959acdChris Lattner unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 60188137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 60198137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 60203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 60213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 60228137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 60233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 60243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 60258137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 6026edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 60273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 60283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 60293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 603035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 60314c948eb373779718e5be36d7674382b52114bf65Chris Lattner case ISD::TRUNCATE: { 60324c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The input value must be larger than this value. Expand *it*. 60334c948eb373779718e5be36d7674382b52114bf65Chris Lattner SDOperand NewLo; 60344c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(Node->getOperand(0), NewLo, Hi); 60354c948eb373779718e5be36d7674382b52114bf65Chris Lattner 60364c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The low part is now either the right size, or it is closer. If not the 60374c948eb373779718e5be36d7674382b52114bf65Chris Lattner // right size, make an illegal truncate so we recursively expand it. 60384c948eb373779718e5be36d7674382b52114bf65Chris Lattner if (NewLo.getValueType() != Node->getValueType(0)) 60394c948eb373779718e5be36d7674382b52114bf65Chris Lattner NewLo = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), NewLo); 60404c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(NewLo, Lo, Hi); 60414c948eb373779718e5be36d7674382b52114bf65Chris Lattner break; 60424c948eb373779718e5be36d7674382b52114bf65Chris Lattner } 60434c948eb373779718e5be36d7674382b52114bf65Chris Lattner 604435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 6045f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner SDOperand Tmp; 6046f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 6047f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 6048f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 6049f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 6050f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 6051f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 6052f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 6053f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 6054f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 6055f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 60561a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng // f32 / f64 must be expanded to i32 / i64. 605713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 605813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 605919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 606019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng ExpandOp(Lo, Lo, Hi); 60617b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 60627b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 60637b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 60647b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // If source operand will be expanded to the same type as VT, i.e. 60657b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // i64 <- f64, i32 <- f32, expand the source operand instead. 60667b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng MVT::ValueType VT0 = Node->getOperand(0).getValueType(); 60677b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { 60687b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng ExpandOp(Node->getOperand(0), Lo, Hi); 60691a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 60701a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng } 60711a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng 6072f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 6073f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (Tmp.Val == 0) 60741401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Tmp = EmitStackConvert(Node->getOperand(0), VT, VT); 6075f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 607635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 607735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 607835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 6079f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 608027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::READCYCLECOUNTER: { 6081308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 6082308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 6083308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 608427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner SDOperand Tmp = TLI.LowerOperation(Op, DAG); 608527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Tmp.Val && "Node must be custom expanded!"); 608627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Tmp.getValue(0), Lo, Hi); 6087308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 608827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner LegalizeOp(Tmp.getValue(1))); 6089f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 609027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 6091f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 6092d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth case ISD::ATOMIC_LCS: { 6093d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth SDOperand Tmp = TLI.LowerOperation(Op, DAG); 6094d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth assert(Tmp.Val && "Node must be custom expanded!"); 6095d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth ExpandOp(Tmp.getValue(0), Lo, Hi); 6096d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 6097d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth LegalizeOp(Tmp.getValue(1))); 6098d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth break; 6099d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth } 6100d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth 6101d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth 6102d19189e9905e14a4001a8ca6fc4effb6a3f88e45Andrew Lenharth 61034e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 61044e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 610556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_SINT: { 610680a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 6107f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 6108f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 6109f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 61108137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 61118137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 6112f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 6113d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6114f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 6115f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 611680a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 611780a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 611807dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 611907dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 612007dffd6af673c73352150583150b242a93694f00Chris Lattner break; 612107dffd6af673c73352150583150b242a93694f00Chris Lattner } 612280a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 6123d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6124161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 6125a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (VT == MVT::i64) { 6126a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (Node->getOperand(0).getValueType() == MVT::f32) 6127a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F32_I64; 6128a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f64) 6129a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F64_I64; 6130a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f80) 6131a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F80_I64; 6132a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 6133a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_PPCF128_I64; 6134a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 6135a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman false/*sign irrelevant*/, Hi); 6136a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i128) { 6137a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (Node->getOperand(0).getValueType() == MVT::f32) 6138a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F32_I128; 6139a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f64) 6140a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F64_I128; 6141a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f80) 6142a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_F80_I128; 6143a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 6144a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOSINT_PPCF128_I128; 6145a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 6146a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman false/*sign irrelevant*/, Hi); 6147a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else { 6148a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected uint-to-fp conversion!"); 6149a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } 61504e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 615156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 6152d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 615356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_UINT: { 615480a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 61558137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 61568137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 61578137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 61588137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 61598137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 61608137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 61618137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 61628137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 61638137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 61648137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 616507dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 616607dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 616707dffd6af673c73352150583150b242a93694f00Chris Lattner break; 616807dffd6af673c73352150583150b242a93694f00Chris Lattner } 616980a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 6170d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6171daccea18ca8357b4193ac3ba42a168e650b807e0Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 6172a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (VT == MVT::i64) { 6173a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (Node->getOperand(0).getValueType() == MVT::f32) 6174a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F32_I64; 6175a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f64) 6176a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F64_I64; 6177a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f80) 6178a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F80_I64; 6179a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 6180a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_PPCF128_I64; 6181a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 6182a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman false/*sign irrelevant*/, Hi); 6183a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else if (VT == MVT::i128) { 6184a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (Node->getOperand(0).getValueType() == MVT::f32) 6185a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F32_I128; 6186a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f64) 6187a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F64_I128; 6188a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::f80) 6189a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_F80_I128; 6190a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 6191a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman LC = RTLIB::FPTOUINT_PPCF128_I128; 6192a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 6193a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman false/*sign irrelevant*/, Hi); 6194a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } else { 6195a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman assert(0 && "Unexpected uint-to-fp conversion!"); 6196a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman } 61974e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 619856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 61994e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 620005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 620150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6202348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 620350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 62048137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 620550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 620650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 620750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 620850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 620950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 621050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 621150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 621250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 621350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 621479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 621579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 621679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 6217002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if (ShAmt->getAPIntValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 621879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 621979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 622079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 622179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 622279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 622379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 622479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 622579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 622679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 622779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 622879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 622979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 623079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 623179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 6232e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6233348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6234e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 62354759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 62364759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 623705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 623805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 623905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 624005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6241348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 62424759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 62434759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 62444759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6245e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 624656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SHL_I64), Node, 624756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*left shift=unsigned*/, Hi); 6248e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 624905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 6250e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 625105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 625250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6253348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 625450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 62558137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); 625650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 625750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 625850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 625950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 626050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 626150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 626250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 626350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 626450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 6265e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6266348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6267e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 62684759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 62694759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 627005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 627105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 627205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 627305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6274348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 62754759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 62764759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 62774759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6278e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 627956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRA_I64), Node, 628056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng true/*ashr is signed*/, Hi); 6281e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 628205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 628305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 628405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 628550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6286348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 628750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 62888137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 628950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 629050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 629150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 629250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 629350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 629450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 629550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 629650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 629750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 6298e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6299348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6300e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 63014759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 63024759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 630305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 630405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 630505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 630605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6307348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 63084759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 63094759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 63104759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6311e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 631256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRL_I64), Node, 631356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*lshr is unsigned*/, Hi); 6314e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 631505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 6316e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 6317edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 63188137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 63198137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 63208137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 63218137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 63228137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 63238137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 63248137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 63258137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 63268137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 63278137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 63288137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 63298137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 63308137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 63318137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 63328137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 633379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 633479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 6335bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 6336bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 6337bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 6338bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 6339551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 634079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 6341bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 634279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 6343551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 634479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 6345bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 634679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 6347551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 634884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 63498137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 6350b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6351b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDC: 6352b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBC: { 6353b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 6354b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 6355b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 6356b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 6357b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6358b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[2] = { LHSL, RHSL }; 6359b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 6360b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6361b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner if (Node->getOpcode() == ISD::ADDC) { 6362b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 6363b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6364b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 6365b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } else { 6366b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 6367b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6368b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 6369b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6370b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 6371b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 6372b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 6373b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6374b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDE: 6375b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBE: { 6376b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 6377b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 6378b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 6379b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 6380b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6381b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[3] = { LHSL, RHSL, Node->getOperand(2) }; 6382b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 6383b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6384b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(Node->getOpcode(), VTList, LoOps, 3); 6385b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6386b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(Node->getOpcode(), VTList, HiOps, 3); 6387b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6388b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 6389b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 6390b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 6391b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6392c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 63937d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 63947d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 63958829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner SDOperand New = TLI.LowerOperation(Op, DAG); 63968829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner if (New.Val) { 63978829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 63987d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 63997d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 64007d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 64017d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 64023f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 64033f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 6404525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, NVT); 6405525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, NVT); 6406525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 6407c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 6408c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 6409c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 64102e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned OuterBitSize = Op.getValueSizeInBits(); 64112e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned InnerBitSize = RH.getValueSizeInBits(); 6412525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned LHSSB = DAG.ComputeNumSignBits(Op.getOperand(0)); 6413525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned RHSSB = DAG.ComputeNumSignBits(Op.getOperand(1)); 641476c605b18ee74e2c521a02431ab9e1ce6912d827Dan Gohman APInt HighMask = APInt::getHighBitsSet(OuterBitSize, InnerBitSize); 641576c605b18ee74e2c521a02431ab9e1ce6912d827Dan Gohman if (DAG.MaskedValueIsZero(Node->getOperand(0), HighMask) && 641676c605b18ee74e2c521a02431ab9e1ce6912d827Dan Gohman DAG.MaskedValueIsZero(Node->getOperand(1), HighMask)) { 6417525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The inputs are both zero-extended. 6418525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 6419525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a umul_lohi. 6420525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::UMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 6421525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = SDOperand(Lo.Val, 1); 6422525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6423525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6424525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU) { 6425525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhu+mul. 6426525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 6427525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 6428525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6429525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6430525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 64312e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman if (LHSSB > InnerBitSize && RHSSB > InnerBitSize) { 6432525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The input values are both sign-extended. 6433525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI) { 6434525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a smul_lohi. 6435525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::SMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 6436525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = SDOperand(Lo.Val, 1); 6437525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6438525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6439525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHS) { 6440525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhs+mul. 6441525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 6442525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 6443525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6444525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6445525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6446525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 6447525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // Lo,Hi = umul LHS, RHS. 6448525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDOperand UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, 6449525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman DAG.getVTList(NVT, NVT), LL, RL); 6450525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = UMulLOHI; 6451525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = UMulLOHI.getValue(1); 645256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 645356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 645456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 645556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 6456a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 645756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 64588eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen if (HasMULHU) { 64598eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 64608eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 64618eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 64628eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 64638eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 64648eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 64658eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen break; 64668eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen } 6467c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 64683f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 6469525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // If nothing else, we can make a libcall. 647056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::MUL_I64), Node, 647156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 6472c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 6473c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 647456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SDIV: 647556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SDIV_I64), Node, true, Hi); 647656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 647756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UDIV: 647856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UDIV_I64), Node, true, Hi); 647956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 648056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SREM: 648156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SREM_I64), Node, true, Hi); 648256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 648356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UREM: 648456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UREM_I64), Node, true, Hi); 648556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 64865c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng 64871a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FADD: 6488007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::ADD_F32, 6489007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::ADD_F64, 6490007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::ADD_F80, 6491007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::ADD_PPCF128)), 649256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 64931a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 64941a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FSUB: 6495007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::SUB_F32, 6496007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SUB_F64, 6497007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SUB_F80, 6498007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SUB_PPCF128)), 649956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 65001a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 65011a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FMUL: 6502007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::MUL_F32, 6503007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::MUL_F64, 6504007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::MUL_F80, 6505007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::MUL_PPCF128)), 650656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 65071a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 65081a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FDIV: 6509007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::DIV_F32, 6510007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::DIV_F64, 6511007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::DIV_F80, 6512007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::DIV_PPCF128)), 651356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 65141a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 65151a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_EXTEND: 6516ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (VT == MVT::ppcf128) { 6517ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen assert(Node->getOperand(0).getValueType()==MVT::f32 || 6518ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0).getValueType()==MVT::f64); 6519ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen const uint64_t zero = 0; 6520ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (Node->getOperand(0).getValueType()==MVT::f32) 6521ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::FP_EXTEND, MVT::f64, Node->getOperand(0)); 6522ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen else 6523ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = Node->getOperand(0); 6524ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6525ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6526ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 652756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPEXT_F32_F64), Node, true,Hi); 65281a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 65291a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_ROUND: 653056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPROUND_F64_F32),Node,true,Hi); 65311a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 6532c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio case ISD::FPOWI: 6533007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::POWI_F32, 6534007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_F64, 6535007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_F80, 6536007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_PPCF128)), 6537c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio Node, false, Hi); 6538c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio break; 653998ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSQRT: 654098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSIN: 654198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FCOS: { 654256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 654398ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng switch(Node->getOpcode()) { 654456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 6545007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, 6546007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); 654756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 654856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 6549007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, 6550007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SIN_F80, RTLIB::SIN_PPCF128); 655156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 655256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 6553007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, 6554007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::COS_F80, RTLIB::COS_PPCF128); 655556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 655698ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng default: assert(0 && "Unreachable!"); 655798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 655856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, false, Hi); 655998ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng break; 656098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 6561966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FABS: { 6562f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6563f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen SDOperand Tmp; 6564f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Tmp); 6565f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FABS, NVT, Tmp); 6566f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen // lo = hi==fabs(hi) ? lo : -lo; 6567f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::SELECT_CC, NVT, Hi, Tmp, 6568f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo, DAG.getNode(ISD::FNEG, NVT, Lo), 6569f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen DAG.getCondCode(ISD::SETEQ)); 6570f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6571f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6572966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 6573966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 6574966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 6575966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6576966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6577966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); 6578966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6579966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6580966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6581966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6582966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FNEG: { 6583f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6584f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Hi); 6585f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::FNEG, MVT::f64, Lo); 6586f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FNEG, MVT::f64, Hi); 6587f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6588f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6589966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 6590966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) 6591966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), VT); 6592966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6593966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6594966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); 6595966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6596966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6597966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6598966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6599912095becac923ff614d7b07728eb345ada67765Evan Cheng case ISD::FCOPYSIGN: { 6600912095becac923ff614d7b07728eb345ada67765Evan Cheng Lo = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 6601912095becac923ff614d7b07728eb345ada67765Evan Cheng if (getTypeAction(NVT) == Expand) 6602912095becac923ff614d7b07728eb345ada67765Evan Cheng ExpandOp(Lo, Lo, Hi); 6603912095becac923ff614d7b07728eb345ada67765Evan Cheng break; 6604912095becac923ff614d7b07728eb345ada67765Evan Cheng } 66057df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::SINT_TO_FP: 66067df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::UINT_TO_FP: { 66077df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 66087df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng MVT::ValueType SrcVT = Node->getOperand(0).getValueType(); 6609cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen 6610cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen // Promote the operand if needed. Do this before checking for 6611cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen // ppcf128 so conversions of i16 and i8 work. 6612cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen if (getTypeAction(SrcVT) == Promote) { 6613cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen SDOperand Tmp = PromoteOp(Node->getOperand(0)); 6614cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen Tmp = isSigned 6615cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp, 6616cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen DAG.getValueType(SrcVT)) 6617cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen : DAG.getZeroExtendInReg(Tmp, SrcVT); 6618cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen Node = DAG.UpdateNodeOperands(Op, Tmp).Val; 6619cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen SrcVT = Node->getOperand(0).getValueType(); 6620cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen } 6621cf49819877addffa29cbb33dc6aab963868e74eeDale Johannesen 6622a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman if (VT == MVT::ppcf128 && SrcVT == MVT::i32) { 6623f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t zero = 0; 6624ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (isSigned) { 6625ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6626ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6627ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6628ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } else { 6629f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t TwoE32[] = { 0x41f0000000000000LL, 0 }; 6630ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6631ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6632ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6633ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 66346e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // X>=0 ? {(f64)x, 0} : {(f64)x, 0} + 2^32 6635ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 6636ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstant(0, MVT::i32), 6637ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 6638ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstantFP( 6639ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen APFloat(APInt(128, 2, TwoE32)), 6640ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen MVT::ppcf128)), 6641ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi, 6642ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getCondCode(ISD::SETLT)), 6643ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo, Hi); 6644ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 6645ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6646ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 66476e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen if (VT == MVT::ppcf128 && SrcVT == MVT::i64 && !isSigned) { 66486e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // si64->ppcf128 done by libcall, below 6649f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t TwoE64[] = { 0x43f0000000000000LL, 0 }; 66506e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SINT_TO_FP, MVT::ppcf128, Node->getOperand(0)), 66516e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 66526e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 66536e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // x>=0 ? (ppcf128)(i64)x : (ppcf128)(i64)x + 2^64 66546e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 66556e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstant(0, MVT::i64), 66566e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 66576e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstantFP( 66586e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen APFloat(APInt(128, 2, TwoE64)), 66596e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen MVT::ppcf128)), 66606e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi, 66616e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getCondCode(ISD::SETLT)), 66626e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 66636e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen break; 66646e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen } 66657df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng 6666a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT, 6667a2e9485e34f1348526ed104dbdc194673e291077Dan Gohman Node->getOperand(0)); 6668110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 66696ad2f930da0ebadb0e000397cea8384c650877bbEvan Cheng // float to i32 etc. can be 'expanded' to a single node. 6670110cf48752dcf86c6d95698c08805f1dd534ac83Evan Cheng ExpandOp(Lo, Lo, Hi); 66717df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng break; 66727df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 667398ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 66743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 667583397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 667683397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 667783397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 667883397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 667913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 668013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng // Don't legalize the high part if it is expanded to a single node. 668113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Hi = LegalizeOp(Hi); 668283397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 668305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 668405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 668540030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))); 668605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 66873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 66883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 66897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// SplitVectorOp - Given an operand of vector type, break it down into 66907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// two smaller values, still of vector type. 6691c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 6692c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 66937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && "Cannot split non-vector type!"); 6694c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 6695e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman unsigned NumElements = MVT::getVectorNumElements(Op.getValueType()); 6696c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 66975db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 6698e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman MVT::ValueType NewEltVT = MVT::getVectorElementType(Op.getValueType()); 66995db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 67005db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Lo = 1 << Log2_32(NumElements-1); 67015db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Hi = NumElements - NewNumElts_Lo; 67025db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 67035db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman MVT::ValueType NewVT_Lo = MVT::getVectorType(NewEltVT, NewNumElts_Lo); 67045db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman MVT::ValueType NewVT_Hi = MVT::getVectorType(NewEltVT, NewNumElts_Hi); 67055db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 6706c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 6707c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 6708c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 6709c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 6710c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 6711c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 6712c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 6713c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6714c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6715c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 6716e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 6717e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 671839833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); 6719e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 6720e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 6721daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner case ISD::UNDEF: 6722daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Lo = DAG.getNode(ISD::UNDEF, NewVT_Lo); 6723daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Hi = DAG.getNode(ISD::UNDEF, NewVT_Hi); 6724daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner break; 67257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_PAIR: 67267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 67277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 67287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 67299fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman case ISD::INSERT_VECTOR_ELT: { 67309fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman SplitVectorOp(Node->getOperand(0), Lo, Hi); 67319fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman unsigned Index = cast<ConstantSDNode>(Node->getOperand(2))->getValue(); 67329fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman SDOperand ScalarOp = Node->getOperand(1); 67335db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman if (Index < NewNumElts_Lo) 67345db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Lo, Lo, ScalarOp, 67355922f561c65968ef1865cc8434d191041e450602Nate Begeman DAG.getIntPtrConstant(Index)); 67369fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman else 67375db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Hi, Hi, ScalarOp, 67385922f561c65968ef1865cc8434d191041e450602Nate Begeman DAG.getIntPtrConstant(Index - NewNumElts_Lo)); 67399fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman break; 67409fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman } 67416c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner case ISD::VECTOR_SHUFFLE: { 67426c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Build the low part. 67436c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand Mask = Node->getOperand(2); 67446c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SmallVector<SDOperand, 8> Ops; 67456c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner MVT::ValueType PtrVT = TLI.getPointerTy(); 67466c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 67476c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Insert all of the elements from the input that are needed. We use 67486c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // buildvector of extractelement here because the input vectors will have 67496c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // to be legalized, so this makes the code simpler. 67506c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = 0; i != NewNumElts_Lo; ++i) { 67515922f561c65968ef1865cc8434d191041e450602Nate Begeman SDOperand IdxNode = Mask.getOperand(i); 67525922f561c65968ef1865cc8434d191041e450602Nate Begeman if (IdxNode.getOpcode() == ISD::UNDEF) { 67535922f561c65968ef1865cc8434d191041e450602Nate Begeman Ops.push_back(DAG.getNode(ISD::UNDEF, NewEltVT)); 67545922f561c65968ef1865cc8434d191041e450602Nate Begeman continue; 67555922f561c65968ef1865cc8434d191041e450602Nate Begeman } 67565922f561c65968ef1865cc8434d191041e450602Nate Begeman unsigned Idx = cast<ConstantSDNode>(IdxNode)->getValue(); 67576c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand InVec = Node->getOperand(0); 67586c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 67596c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 67606c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 67616c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67626c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 67636c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 67646c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67656c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &Ops[0], Ops.size()); 67666c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.clear(); 67676c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 67686c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = NewNumElts_Lo; i != NumElements; ++i) { 67695922f561c65968ef1865cc8434d191041e450602Nate Begeman SDOperand IdxNode = Mask.getOperand(i); 67705922f561c65968ef1865cc8434d191041e450602Nate Begeman if (IdxNode.getOpcode() == ISD::UNDEF) { 67715922f561c65968ef1865cc8434d191041e450602Nate Begeman Ops.push_back(DAG.getNode(ISD::UNDEF, NewEltVT)); 67725922f561c65968ef1865cc8434d191041e450602Nate Begeman continue; 67735922f561c65968ef1865cc8434d191041e450602Nate Begeman } 67745922f561c65968ef1865cc8434d191041e450602Nate Begeman unsigned Idx = cast<ConstantSDNode>(IdxNode)->getValue(); 67756c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand InVec = Node->getOperand(0); 67766c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 67776c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 67786c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 67796c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67806c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 67816c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 67826c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67836c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &Ops[0], Ops.size()); 67846c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner break; 67856c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: { 6787bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 67885db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Node->op_begin()+NewNumElts_Lo); 67895db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &LoOps[0], LoOps.size()); 6790c7029805ef35ce9805931067b841e6af11db382eChris Lattner 67915db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumElts_Lo, 67927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 67935db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Hi, &HiOps[0], HiOps.size()); 6794c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6795c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 67967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: { 67975db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman // FIXME: Handle non-power-of-two vectors? 67987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NewNumSubvectors = Node->getNumOperands() / 2; 67997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NewNumSubvectors == 1) { 68007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 68017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 68027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 68037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 68047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_begin()+NewNumSubvectors); 68055db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Lo, &LoOps[0], LoOps.size()); 68066595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 68077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumSubvectors, 68087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 68095db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Hi, &HiOps[0], HiOps.size()); 68107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 68116595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 68126595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 6813c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman case ISD::SELECT: { 6814c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand Cond = Node->getOperand(0); 6815c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 6816c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand LL, LH, RL, RH; 6817c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(1), LL, LH); 6818c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(2), RL, RH); 6819c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 6820c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman if (MVT::isVector(Cond.getValueType())) { 6821c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a vector merge. 6822c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand CL, CH; 6823c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Cond, CL, CH); 68245db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, CL, LL, RL); 68255db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, CH, LH, RH); 6826c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } else { 6827c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a simple select with vector operands. 68285db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, Cond, LL, RL); 68295db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, Cond, LH, RH); 6830c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 6831c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman break; 6832c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 68337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 68347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 68357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 68367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 68377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 68387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 68397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 68407f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 68417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 6842826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 68437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 68447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 6845089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::XOR: 6846089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::UREM: 6847089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::SREM: 6848089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::FREM: { 6849c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 6850c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 6851c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 6852c7029805ef35ce9805931067b841e6af11db382eChris Lattner 68535db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, LL, RL); 68545db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, LH, RH); 6855c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6856c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6857826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOWI: { 6858826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand L, H; 6859826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6860826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 68615db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L, Node->getOperand(1)); 68625db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H, Node->getOperand(1)); 6863826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6864826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 6865826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTTZ: 6866826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTLZ: 6867826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTPOP: 6868826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FNEG: 6869826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FABS: 6870826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSQRT: 6871826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSIN: 6872b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FCOS: 6873b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_SINT: 6874b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_UINT: 6875b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::SINT_TO_FP: 6876b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::UINT_TO_FP: { 6877826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand L, H; 6878826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6879826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 68805db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L); 68815db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H); 6882826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6883826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 68847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 68857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 68867f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LD->getChain(); 68877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LD->getBasePtr(); 68887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 68897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 68907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned Alignment = LD->getAlignment(); 68917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isVolatile = LD->isVolatile(); 68927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 68935db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getLoad(NewVT_Lo, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 68945db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned IncrementSize = NewNumElts_Lo * MVT::getSizeInBits(NewEltVT)/8; 6895c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 68960bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 68977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 6898dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 68995db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getLoad(NewVT_Hi, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 6900c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6901c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 6902c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 6903c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 6904c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 6905c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6906c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 6907c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 6908c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6909c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 69107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: { 69117692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 69127692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 691310a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SDOperand InOp = Node->getOperand(0); 691410a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman if (!MVT::isVector(InOp.getValueType()) || 691510a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman MVT::getVectorNumElements(InOp.getValueType()) == 1) { 691610a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // The input is a scalar or single-element vector. 691710a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Lower to a store/load so that it can be split. 691810a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // FIXME: this could be improved probably. 691985dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand Ptr = DAG.CreateStackTemporary(InOp.getValueType()); 6920bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *FI = cast<FrameIndexSDNode>(Ptr.Val); 69217692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 6922786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand St = DAG.getStore(DAG.getEntryNode(), 692369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman InOp, Ptr, 69243069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 692569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FI->getIndex()); 692669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman InOp = DAG.getLoad(Op.getValueType(), St, Ptr, 69273069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 692869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FI->getIndex()); 69297692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 693010a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Split the vector and convert each of the pieces now. 693110a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SplitVectorOp(InOp, Lo, Hi); 69325db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BIT_CONVERT, NewVT_Lo, Lo); 69335db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BIT_CONVERT, NewVT_Hi, Hi); 693410a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman break; 69357692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 6936c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6937c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6938c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 693940030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = 6940c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 694110a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman assert(isNew && "Value already split?!?"); 6942c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 6943c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6944c7029805ef35ce9805931067b841e6af11db382eChris Lattner 694589b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// ScalarizeVectorOp - Given an operand of single-element vector type 694689b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// (e.g. v1f32), convert it into the equivalent operation that returns a 694789b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// scalar (e.g. f32) value. 69487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ScalarizeVectorOp(SDOperand Op) { 69497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && 69507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "Bad ScalarizeVectorOp invocation!"); 6951c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 69527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewVT = MVT::getVectorElementType(Op.getValueType()); 69537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::getVectorNumElements(Op.getValueType()) == 1); 6954c7029805ef35ce9805931067b841e6af11db382eChris Lattner 69557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // See if we already scalarized it. 69567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand>::iterator I = ScalarizedNodes.find(Op); 69577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (I != ScalarizedNodes.end()) return I->second; 6958c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6959c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 6960c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 69612332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 6962e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 696339833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); cerr << "\n"; 6964e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 69657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Unknown vector operation in ScalarizeVectorOp!"); 69667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 69677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 69687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 69697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 69707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 69717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 69727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 69737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 69747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 69757f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SREM: 69767f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UREM: 69777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FREM: 6978826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 69797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 69807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 69817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: 69827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 6983c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 69847f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 69857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(1))); 6986c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 69877f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FNEG: 69887f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FABS: 69897f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSQRT: 69907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSIN: 69917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FCOS: 69927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 69937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman NewVT, 69947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 69957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 69969e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman case ISD::FPOWI: 69979e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Result = DAG.getNode(Node->getOpcode(), 69989e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman NewVT, 69999e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 70009e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Node->getOperand(1)); 70019e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman break; 70027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 70037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 70047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LegalizeOp(LD->getChain()); // Legalize the chain. 70057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LegalizeOp(LD->getBasePtr()); // Legalize the pointer. 7006c7029805ef35ce9805931067b841e6af11db382eChris Lattner 70077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 70087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 70097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, 70107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LD->isVolatile(), LD->getAlignment()); 70117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 7012c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 7013c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 7014c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 7015c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 70167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: 70177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 70187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 70197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::INSERT_VECTOR_ELT: 70207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Returning the inserted scalar element. 70217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(1); 7022c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 70237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: 70246595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Node->getOperand(0).getValueType() == NewVT && 70256595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman "Concat of non-legal vectors not yet supported!"); 70266595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = Node->getOperand(0); 70276595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 70287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::VECTOR_SHUFFLE: { 70297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if the scalar is the LHS or RHS and return it. 70307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand EltNum = Node->getOperand(2).getOperand(0); 70317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (cast<ConstantSDNode>(EltNum)->getValue()) 70327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(1)); 70337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman else 70347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(0)); 70352332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 70367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 70377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 70387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 70396595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Result.getValueType() == NewVT); 70406595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 70417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: 70427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op.getOperand(0)); 7043db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 70447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SELECT: 7045b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 70467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(1)), 70477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(2))); 7048b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 7049c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 7050c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7051c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 7052c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 70537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isNew = ScalarizedNodes.insert(std::make_pair(Op, Result)).second; 70547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(isNew && "Value already scalarized?"); 7055c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 7056c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 7057c7029805ef35ce9805931067b841e6af11db382eChris Lattner 70583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 70593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 70603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 70619c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 70625e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner if (ViewLegalizeDAGs) viewGraph(); 70635e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 70643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 70653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 7066456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 70673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 70683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7069