LegalizeDAG.cpp revision ef12057737229452c17983faa20857dba441ef05
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" 25adf6a965a321372c640845407195594835921eb4Chris Lattner#include "llvm/CallingConv.h" 263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Constants.h" 27c10305743c313558405079452138f03124e87581Reid Spencer#include "llvm/DerivedTypes.h" 285e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/CommandLine.h" 29a4f0b3a084d120cfc5b5bb06f64b222f5cb72740Chris Lattner#include "llvm/Support/Compiler.h" 30dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands#include "llvm/Support/MathExtras.h" 317971514755a08ec156a1b9c0f7f05d67919c56b7Chris Lattner#include "llvm/ADT/DenseMap.h" 32f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner#include "llvm/ADT/SmallVector.h" 3300755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner#include "llvm/ADT/SmallPtrSet.h" 34033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng#include <map> 353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerusing namespace llvm; 363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 375e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#ifndef NDEBUG 385e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic cl::opt<bool> 395e46a19ec848cd4fc9649bd5170c43d9e657668cChris LattnerViewLegalizeDAGs("view-legalize-dags", cl::Hidden, 405e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner cl::desc("Pop up a window to show dags before legalize")); 415e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#else 425e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattnerstatic const bool ViewLegalizeDAGs = 0; 435e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#endif 445e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// SelectionDAGLegalize - This takes an arbitrary SelectionDAG as input and 473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// hacks on it until the target machine can handle it. This involves 483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating value sizes the machine cannot handle (promoting small sizes to 493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// large sizes or splitting up large values into small values) as well as 503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating operations the machine cannot handle. 513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// This code also does a small amount of optimization and recognition of idioms 533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// as part of its processing. For example, if a target does not support a 543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 'setcc' instruction efficiently, but does support 'brcc' instruction, this 553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// will attempt merge setcc and brc instructions into brcc's. 563e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 573e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnernamespace { 58360e8200ec544a3c877ff74b48f445140ac9bbd6Chris Lattnerclass VISIBILITY_HIDDEN SelectionDAGLegalize { 593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner TargetLowering &TLI; 603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SelectionDAG &DAG; 613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Libcall insertion helpers. 636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// LastCALLSEQ_END - This keeps track of the CALLSEQ_END node that has been 656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// legalized. We use this to ensure that calls are properly serialized 666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// against each other, including inserted libcalls. 676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand LastCALLSEQ_END; 686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// IsLegalizingCall - This member is used *only* for purposes of providing 706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// helpful assertions that a libcall isn't created while another call is 716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// being legalized (which could lead to non-serialized call sequences). 726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool IsLegalizingCall; 736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner enum LegalizeAction { 7568a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Legal, // The target natively supports this operation. 7668a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Promote, // This operation should be executed in a larger type. 77d74ea2bbd8bb630331f35ead42d385249bd42af8Chris Lattner Expand // Try to expand this to other ops, otherwise use a libcall. 783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner }; 796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// ValueTypeActions - This is a bitvector that contains two bits for each 813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// value type, where the two bits correspond to the LegalizeAction enum. 823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// This can be queried with "getTypeAction(VT)". 8368a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner TargetLowering::ValueTypeActionImpl ValueTypeActions; 843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// LegalizedNodes - For nodes that are of legal width, and that have more 863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// than one use, this map indicates what regularized operand to use. This 873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// allows us to avoid legalizing the same thing more than once. 88718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand> LegalizedNodes; 893e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 9003c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// PromotedNodes - For nodes that are below legal width, and that have more 9103c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// than one use, this map indicates what promoted value to use. This allows 9203c8546ec57523970874917854a2fb77b1ff598eChris Lattner /// us to avoid promoting the same thing more than once. 9340030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand> PromotedNodes; 9403c8546ec57523970874917854a2fb77b1ff598eChris Lattner 95c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandedNodes - For nodes that need to be expanded this map indicates 96c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the expanded version of the input. This allows 97c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// us to avoid expanding the same node more than once. 9840030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> > ExpandedNodes; 993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 100c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// SplitNodes - For vector nodes that need to be split, this map indicates 101c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// which which operands are the split version of the input. This allows us 102c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// to avoid splitting the same node more than once. 103c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> > SplitNodes; 104c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// ScalarizedNodes - For nodes that need to be converted from vector types to 1067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// scalar types, this contains the mapping of ones we have already 107c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// processed to the result. 1087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand> ScalarizedNodes; 109c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1108afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner void AddLegalizedOperand(SDOperand From, SDOperand To) { 11169a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(From, To)); 11269a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 11369a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner if (From != To) 11469a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 1158afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner } 11603c8546ec57523970874917854a2fb77b1ff598eChris Lattner void AddPromotedOperand(SDOperand From, SDOperand To) { 11740030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = PromotedNodes.insert(std::make_pair(From, To)); 11803c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isNew && "Got into the map somehow?"); 11969a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 12069a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 12103c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 1228afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner 1233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerpublic: 1243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1259c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner SelectionDAGLegalize(SelectionDAG &DAG); 1263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// getTypeAction - Return how we should legalize values of this type, either 1283e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// it is already legal or we need to expand it into multiple registers of 1293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// smaller integer type, or we need to promote it to a larger type. 1303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizeAction getTypeAction(MVT::ValueType VT) const { 13168a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner return (LegalizeAction)ValueTypeActions.getTypeAction(VT); 1323e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1343e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// isTypeLegal - Return true if this type is legal on this target. 1353e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 1363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner bool isTypeLegal(MVT::ValueType VT) const { 1373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return getTypeAction(VT) == Legal; 1383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner void LegalizeDAG(); 1413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 142456a93afcec7740c45cafa8354317f7b17987a6dChris Lattnerprivate: 1437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// HandleOp - Legalize, Promote, or Expand the specified operand as 144c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// appropriate for its type. 145c7029805ef35ce9805931067b841e6af11db382eChris Lattner void HandleOp(SDOperand Op); 146c7029805ef35ce9805931067b841e6af11db382eChris Lattner 147c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// LegalizeOp - We know that the specified value has a legal type. 148c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Recursively ensure that the operands have legal types, then return the 149c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// result. 1503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LegalizeOp(SDOperand O); 151c7029805ef35ce9805931067b841e6af11db382eChris Lattner 152826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// UnrollVectorOp - We know that the given vector has a legal type, however 153826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// the operation it performs is not legal and is an operation that we have 154826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// no way of lowering. "Unroll" the vector, splitting out the scalars and 155826695281344e3a4c4d44d73dd155107aafd689bDan Gohman /// operating on each element individually. 156826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand UnrollVectorOp(SDOperand O); 157826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 158c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// PromoteOp - Given an operation that produces a value in an invalid type, 159c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// promote it to compute the value into a larger type. The produced value 160c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// will have the correct bits for the low portion of the register, but no 161c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// guarantee is made about the top bits: it may be zero, sign-extended, or 162c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// garbage. 16303c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand PromoteOp(SDOperand O); 1643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 165c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// ExpandOp - Expand the specified SDOperand into its two component pieces 166c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, 167c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the LegalizeNodes map is filled in for any results that are not expanded, 168c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the ExpandedNodes map is filled in for any results that are expanded, and 169c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// the Lo/Hi values are returned. This applies to integer types and Vector 170c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// types. 171c7029805ef35ce9805931067b841e6af11db382eChris Lattner void ExpandOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 172c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// SplitVectorOp - Given an operand of vector type, break it down into 1747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman /// two smaller values. 175c7029805ef35ce9805931067b841e6af11db382eChris Lattner void SplitVectorOp(SDOperand O, SDOperand &Lo, SDOperand &Hi); 176c7029805ef35ce9805931067b841e6af11db382eChris Lattner 17789b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// ScalarizeVectorOp - Given an operand of single-element vector type 17889b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// (e.g. v1f32), convert it into the equivalent operation that returns a 17989b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman /// scalar (e.g. f32) value. 1807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ScalarizeVectorOp(SDOperand O); 181c7029805ef35ce9805931067b841e6af11db382eChris Lattner 1824352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// isShuffleLegal - Return true if a vector shuffle is legal with the 1834352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// specified mask and type. Targets can specify exactly which masks they 1844352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// support and the code generator is tasked with not creating illegal masks. 1854352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1864352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// Note that this will also return true for shuffles that are promoted to a 1874352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// different type. 1884352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// 1894352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// If this is a legal shuffle, this method returns the (possibly promoted) 1904352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner /// build_vector Mask. If it's not a legal shuffle, it returns null. 1914352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDNode *isShuffleLegal(MVT::ValueType VT, SDOperand Mask) const; 1924352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 193c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner bool LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 19400755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo); 1956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 196750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman void LegalizeSetCCOperands(SDOperand &LHS, SDOperand &RHS, SDOperand &CC); 197750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 19847857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer SDOperand ExpandLibCall(const char *Name, SDNode *Node, bool isSigned, 19977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand &Hi); 20077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand ExpandIntToFP(bool isSigned, MVT::ValueType DestTy, 20177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Source); 202cad063f1a8ecda4fd556a733dc5eaa8a96acb80dChris Lattner 2031401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner SDOperand EmitStackConvert(SDOperand SrcOp, MVT::ValueType SlotVT, 2041401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner MVT::ValueType DestVT); 205ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand ExpandBUILD_VECTOR(SDNode *Node); 2064352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand ExpandSCALAR_TO_VECTOR(SDNode *Node); 2076269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand ExpandLegalINT_TO_FP(bool isSigned, 2086269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey SDOperand LegalOp, 2096269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey MVT::ValueType DestVT); 2105a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman SDOperand PromoteLegalINT_TO_FP(SDOperand LegalOp, MVT::ValueType DestVT, 2115a8441ea3fc145393d6274156bd05c4a006099eaNate Begeman bool isSigned); 2121618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner SDOperand PromoteLegalFP_TO_INT(SDOperand LegalOp, MVT::ValueType DestVT, 2131618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner bool isSigned); 21400b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 215456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBSWAP(SDOperand Op); 216456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand ExpandBitCount(unsigned Opc, SDOperand Op); 217e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner bool ExpandShift(unsigned Opc, SDOperand Op, SDOperand Amt, 218e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi); 2195b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner void ExpandShiftParts(unsigned NodeOp, SDOperand Op, SDOperand Amt, 2205b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi); 221b9fa3bc8f39bf1e8df48b85eae4563032dd20bfcChris Lattner 2227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand ExpandEXTRACT_SUBVECTOR(SDOperand Op); 2234aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner SDOperand ExpandEXTRACT_VECTOR_ELT(SDOperand Op); 2243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 2253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2274352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// isVectorShuffleLegal - Return true if a vector shuffle is legal with the 2284352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// specified mask and type. Targets can specify exactly which masks they 2294352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// support and the code generator is tasked with not creating illegal masks. 2304352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// 2314352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// Note that this will also return true for shuffles that are promoted to a 2324352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner/// different type. 2334352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDNode *SelectionDAGLegalize::isShuffleLegal(MVT::ValueType VT, 2344352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand Mask) const { 2354352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE, VT)) { 2364352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: return 0; 2374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 2384352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 2394352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2404352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 2414352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If this is promoted to a different type, convert the shuffle mask and 2424352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // ask if it is legal in the promoted type! 2434352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(ISD::VECTOR_SHUFFLE, VT); 2444352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2454352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // If we changed # elements, change the shuffle mask. 2464352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned NumEltsGrowth = 2474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::getVectorNumElements(NVT) / MVT::getVectorNumElements(VT); 2484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(NumEltsGrowth && "Cannot promote to vector type with fewer elts!"); 2494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (NumEltsGrowth > 1) { 2504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Renumber the elements. 251bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 2524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned i = 0, e = Mask.getNumOperands(); i != e; ++i) { 2534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner SDOperand InOp = Mask.getOperand(i); 2544352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner for (unsigned j = 0; j != NumEltsGrowth; ++j) { 2554352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (InOp.getOpcode() == ISD::UNDEF) 2564352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getNode(ISD::UNDEF, MVT::i32)); 2574352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner else { 2584352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner unsigned InEltNo = cast<ConstantSDNode>(InOp)->getValue(); 2594352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Ops.push_back(DAG.getConstant(InEltNo*NumEltsGrowth+j, MVT::i32)); 2604352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2614352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2624352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 263bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Mask = DAG.getNode(ISD::BUILD_VECTOR, NVT, &Ops[0], Ops.size()); 2644352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2654352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner VT = NVT; 2664352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 2674352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2684352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 2694352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner return TLI.isShuffleMaskLegal(Mask, VT) ? Mask.Val : 0; 2704352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 2714352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2729c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris LattnerSelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag) 2739c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner : TLI(dag.getTargetLoweringInfo()), DAG(dag), 2749c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner ValueTypeActions(TLI.getValueTypeActions()) { 2756a648614e88586e85a36ceb5c1d3b84e4f55b458Nate Begeman assert(MVT::LAST_VALUETYPE <= 32 && 2763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Too many value types for ValueTypeActions to hold!"); 2773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 279e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// ComputeTopDownOrdering - Compute a top-down ordering of the dag, where Order 280e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner/// contains all of a nodes operands before it contains the node. 281e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattnerstatic void ComputeTopDownOrdering(SelectionDAG &DAG, 282e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SmallVector<SDNode*, 64> &Order) { 283e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 284e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner DenseMap<SDNode*, unsigned> Visited; 285e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner std::vector<SDNode*> Worklist; 286e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.reserve(128); 28732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 288e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Compute ordering from all of the leaves in the graphs, those (like the 289e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // entry node) that have no operands. 290e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(), 291e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner E = DAG.allnodes_end(); I != E; ++I) { 292e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (I->getNumOperands() == 0) { 293e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Visited[I] = 0 - 1U; 294e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(I); 295e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 29632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner } 29732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 298e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner while (!Worklist.empty()) { 299e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner SDNode *N = Worklist.back(); 300e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.pop_back(); 301e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 302e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner if (++Visited[N] != N->getNumOperands()) 303e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner continue; // Haven't visited all operands yet 304e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 305e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.push_back(N); 306e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 307e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // Now that we have N in, add anything that uses it if all of their operands 308e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner // are now done. 309e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner for (SDNode::use_iterator UI = N->use_begin(), E = N->use_end(); 310e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner UI != E; ++UI) 311e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Worklist.push_back(*UI); 312e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner } 313e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner 314e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner assert(Order.size() == Visited.size() && 315e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner Order.size() == 316e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner (unsigned)std::distance(DAG.allnodes_begin(), DAG.allnodes_end()) && 317e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner "Error: DAG is cyclic!"); 31832fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner} 31932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 3201618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner 3213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::LegalizeDAG() { 3226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 3236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 3246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 325ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // The legalize process is inherently a bottom-up recursive process (users 326ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // legalize their uses before themselves). Given infinite stack space, we 327ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // could just start legalizing on the root and traverse the whole graph. In 328ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // practice however, this causes us to run out of stack space on large basic 32932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // blocks. To avoid this problem, compute an ordering of the nodes where each 33032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // node is only legalized after all of its operands are legalized. 3310ed44170752b85c3dd3bbf95459dd2668864f5ecChris Lattner SmallVector<SDNode*, 64> Order; 332e10e6f7a36f6f60d1889465a4df51ac8cdb34365Chris Lattner ComputeTopDownOrdering(DAG, Order); 333ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner 334c7029805ef35ce9805931067b841e6af11db382eChris Lattner for (unsigned i = 0, e = Order.size(); i != e; ++i) 335c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(SDOperand(Order[i], 0)); 33632fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 33732fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 3383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand OldRoot = DAG.getRoot(); 33932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 34032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 3413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandedNodes.clear(); 3433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 34471c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner PromotedNodes.clear(); 345c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.clear(); 3467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizedNodes.clear(); 3473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 349190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner DAG.RemoveDeadNodes(); 3503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 3513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 3546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 3556831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 3566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 3576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 3586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 3596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 3606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 3626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand TheChain(Node, Node->getNumValues()-1); 3636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 3656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, 0); 3666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) { 3676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 3686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 3696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getValueType(i) == MVT::Other) { 3706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner TheChain = SDOperand(Node, i); 3716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 3726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3736831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, we walked into a node without a chain. 3756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (TheChain.getValueType() != MVT::Other) 3766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 3816831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 3826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 3846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *User = *UI; 3856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 3866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 3876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 3886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 3896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 3906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 3916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3926831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallStartFromCallEnd - Given a chained node that is part of a call 3946831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 3956831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 3966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 3976831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 3986831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node->getOperand(0).getValueType() == MVT::Other && 4006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 4016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return FindCallStartFromCallEnd(Node->getOperand(0).Val); 4026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 4056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// see if any uses can reach Dest. If no dest operands can get to dest, 4066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 407c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 408c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// Keep track of the nodes we fine that actually do lead to Dest in 409c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// NodesLeadingTo. This avoids retraversing them exponential number of times. 410c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 411c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 41200755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo) { 4136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 4146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 415c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // If we've already processed this node and it does lead to Dest, there is no 416c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // need to reprocess it. 417c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (NodesLeadingTo.count(N)) return true; 418c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner 4196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 4206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 4216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner switch (getTypeAction(N->getValueType(0))) { 4226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Legal: 4236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LegalizedNodes.count(SDOperand(N, 0))) return false; 4246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Promote: 4266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (PromotedNodes.count(SDOperand(N, 0))) return false; 4276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4286831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case Expand: 4296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (ExpandedNodes.count(SDOperand(N, 0))) return false; 4306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 4316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 4326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 4346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 4356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 4366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 4376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 438c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(N->getOperand(i).Val, Dest, NodesLeadingTo); 4396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 440c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (OperandsLeadToDest) { 441c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo.insert(N); 442c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner return true; 443c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 4446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 44680edfb3af5ed214c5cd7797b37cb3bb024e98cc6Chris Lattner HandleOp(SDOperand(N, 0)); 4476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 4486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 4496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// HandleOp - Legalize, Promote, or Expand the specified operand as 451c7029805ef35ce9805931067b841e6af11db382eChris Lattner/// appropriate for its type. 452c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::HandleOp(SDOperand Op) { 4537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType VT = Op.getValueType(); 4547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (getTypeAction(VT)) { 455c7029805ef35ce9805931067b841e6af11db382eChris Lattner default: assert(0 && "Bad type action!"); 4567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Legal: (void)LegalizeOp(Op); break; 4577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case Promote: (void)PromoteOp(Op); break; 458c7029805ef35ce9805931067b841e6af11db382eChris Lattner case Expand: 4597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(VT)) { 4607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal scalar, expand it into its two component 4617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // pieces. 462c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand X, Y; 46309ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) 46409ec1b058331aadb29a348091611d23892b5c492Chris Lattner break; // Allow illegal target nodes. 465c7029805ef35ce9805931067b841e6af11db382eChris Lattner ExpandOp(Op, X, Y); 4667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::getVectorNumElements(VT) == 1) { 4677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // If this is an illegal single element vector, convert it to a 4687f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // scalar operation. 4697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman (void)ScalarizeVectorOp(Op); 470c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 4717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Otherwise, this is an illegal multiple element vector. 4727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Split it in half and legalize both parts. 4737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand X, Y; 4747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SplitVectorOp(Op, X, Y); 475c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 476c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 477c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 478c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 4796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 4809f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// ExpandConstantFP - Expands the ConstantFP node to an integer constant or 4819f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// a load from the constant pool. 4829f87788040786b1bc6530763e4cf7e105bfb2924Evan Chengstatic SDOperand ExpandConstantFP(ConstantFPSDNode *CFP, bool UseCP, 483279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 484004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool Extend = false; 485004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 486004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // If a FP immediate is precise when represented as a float and if the 487004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // target can do an extending load from float to double, we put it into 488004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // the constant pool as a float, even if it's is statically typed as a 489004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // double. 490004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng MVT::ValueType VT = CFP->getValueType(0); 491118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen ConstantFP *LLVMC = ConstantFP::get(MVT::getTypeForValueType(VT), 4929e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen CFP->getValueAPF()); 4939f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 4949e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen if (VT!=MVT::f64 && VT!=MVT::f32) 4959e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Invalid type expansion"); 4969d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen return DAG.getConstant(LLVMC->getValueAPF().convertToAPInt().getZExtValue(), 497ef12057737229452c17983faa20857dba441ef05Evan Cheng (VT == MVT::f64) ? MVT::i64 : MVT::i32); 498279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 499279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 500ef12057737229452c17983faa20857dba441ef05Evan Cheng MVT::ValueType OrigVT = VT; 501ef12057737229452c17983faa20857dba441ef05Evan Cheng MVT::ValueType SVT = VT; 502ef12057737229452c17983faa20857dba441ef05Evan Cheng while (SVT != MVT::f32) { 503ef12057737229452c17983faa20857dba441ef05Evan Cheng SVT = (unsigned)SVT - 1; 504ef12057737229452c17983faa20857dba441ef05Evan Cheng if (CFP->isValueValidForType(SVT, CFP->getValueAPF()) && 505ef12057737229452c17983faa20857dba441ef05Evan Cheng // Only do this if the target has a native EXTLOAD instruction from 506ef12057737229452c17983faa20857dba441ef05Evan Cheng // smaller type. 507ef12057737229452c17983faa20857dba441ef05Evan Cheng TLI.isLoadXLegal(ISD::EXTLOAD, SVT)) { 508ef12057737229452c17983faa20857dba441ef05Evan Cheng const Type *SType = MVT::getTypeForValueType(SVT); 509ef12057737229452c17983faa20857dba441ef05Evan Cheng LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC, SType)); 510ef12057737229452c17983faa20857dba441ef05Evan Cheng VT = SVT; 511ef12057737229452c17983faa20857dba441ef05Evan Cheng Extend = true; 512ef12057737229452c17983faa20857dba441ef05Evan Cheng } 513004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 514004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 515004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng SDOperand CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 516ef12057737229452c17983faa20857dba441ef05Evan Cheng if (Extend) 517ef12057737229452c17983faa20857dba441ef05Evan Cheng return DAG.getExtLoad(ISD::EXTLOAD, OrigVT, DAG.getEntryNode(), 5183069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman CPIdx, PseudoSourceValue::getConstantPool(), 519ef12057737229452c17983faa20857dba441ef05Evan Cheng 0, VT); 520ef12057737229452c17983faa20857dba441ef05Evan Cheng return DAG.getLoad(OrigVT, DAG.getEntryNode(), CPIdx, 521ef12057737229452c17983faa20857dba441ef05Evan Cheng PseudoSourceValue::getConstantPool(), 0); 522004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng} 523004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 5246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 525912095becac923ff614d7b07728eb345ada67765Evan Cheng/// ExpandFCOPYSIGNToBitwiseOps - Expands fcopysign to a series of bitwise 526912095becac923ff614d7b07728eb345ada67765Evan Cheng/// operations. 527912095becac923ff614d7b07728eb345ada67765Evan Chengstatic 528912095becac923ff614d7b07728eb345ada67765Evan ChengSDOperand ExpandFCOPYSIGNToBitwiseOps(SDNode *Node, MVT::ValueType NVT, 529912095becac923ff614d7b07728eb345ada67765Evan Cheng SelectionDAG &DAG, TargetLowering &TLI) { 530068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng MVT::ValueType VT = Node->getValueType(0); 531912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcVT = Node->getOperand(1).getValueType(); 5327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert((SrcVT == MVT::f32 || SrcVT == MVT::f64) && 5337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "fcopysign expansion only supported for f32 and f64"); 534912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType SrcNVT = (SrcVT == MVT::f64) ? MVT::i64 : MVT::i32; 535068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 536912095becac923ff614d7b07728eb345ada67765Evan Cheng // First get the sign bit of second operand. 537068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask1 = (SrcVT == MVT::f64) 538912095becac923ff614d7b07728eb345ada67765Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT) 539912095becac923ff614d7b07728eb345ada67765Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT); 540068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1); 541912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand SignBit= DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Node->getOperand(1)); 542068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SignBit = DAG.getNode(ISD::AND, SrcNVT, SignBit, Mask1); 543912095becac923ff614d7b07728eb345ada67765Evan Cheng // Shift right or sign-extend it if the two operands have different types. 544912095becac923ff614d7b07728eb345ada67765Evan Cheng int SizeDiff = MVT::getSizeInBits(SrcNVT) - MVT::getSizeInBits(NVT); 545912095becac923ff614d7b07728eb345ada67765Evan Cheng if (SizeDiff > 0) { 546912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SRL, SrcNVT, SignBit, 547912095becac923ff614d7b07728eb345ada67765Evan Cheng DAG.getConstant(SizeDiff, TLI.getShiftAmountTy())); 548912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::TRUNCATE, NVT, SignBit); 549912095becac923ff614d7b07728eb345ada67765Evan Cheng } else if (SizeDiff < 0) 550912095becac923ff614d7b07728eb345ada67765Evan Cheng SignBit = DAG.getNode(ISD::SIGN_EXTEND, NVT, SignBit); 551068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 552068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Clear the sign bit of first operand. 553068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng SDOperand Mask2 = (VT == MVT::f64) 554068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 555068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 556068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Mask2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask2); 557912095becac923ff614d7b07728eb345ada67765Evan Cheng SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 558068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng Result = DAG.getNode(ISD::AND, NVT, Result, Mask2); 559068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng 560068c5f47ea9243b353a49ca7eb07fac0cb32f1eeEvan Cheng // Or the value with the sign bit. 561912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::OR, NVT, Result, SignBit); 562912095becac923ff614d7b07728eb345ada67765Evan Cheng return Result; 563912095becac923ff614d7b07728eb345ada67765Evan Cheng} 564912095becac923ff614d7b07728eb345ada67765Evan Cheng 565f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedStore - Expands an unaligned store to 2 half-size stores. 566f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 567f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedStore(StoreSDNode *ST, SelectionDAG &DAG, 568f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 569f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = ST->getChain(); 570f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = ST->getBasePtr(); 571f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Val = ST->getValue(); 572f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType VT = Val.getValueType(); 573907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int Alignment = ST->getAlignment(); 574907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int SVOffset = ST->getSrcValueOffset(); 5758155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen if (MVT::isFloatingPoint(ST->getMemoryVT()) || 5768155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen MVT::isVector(ST->getMemoryVT())) { 577907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a bitconvert of the value to the integer type of the 578907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // same size, then a (misaligned) int store. 579907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType intVT; 5803c8b59c546b5d56b2cae74da55e26eb994ed36bfDale Johannesen if (MVT::is128BitVector(VT) || VT == MVT::ppcf128 || VT == MVT::f128) 5818155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen intVT = MVT::i128; 5823c8b59c546b5d56b2cae74da55e26eb994ed36bfDale Johannesen else if (MVT::is64BitVector(VT) || VT==MVT::f64) 583907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 584907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else if (VT==MVT::f32) 585907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 586907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 587cd9f1747ab72f9863924fbdf43493d9fa6256719Dale Johannesen assert(0 && "Unaligned store of unsupported type"); 588907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 589907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, intVT, Val); 590907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getStore(Chain, Result, Ptr, ST->getSrcValue(), 591907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, ST->isVolatile(), Alignment); 592907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 593b625f2f8960de32bc973092aaee8ac62863006feDan Gohman assert(MVT::isInteger(ST->getMemoryVT()) && 5948155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen !MVT::isVector(ST->getMemoryVT()) && 595907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen "Unaligned store of unknown type."); 596f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Get the half-size VT 597b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType NewStoredVT = ST->getMemoryVT() - 1; 598f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int NumBits = MVT::getSizeInBits(NewStoredVT); 599f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int IncrementSize = NumBits / 8; 600f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 601f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Divide the stored value in two parts. 602f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 603f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo = Val; 604f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Hi = DAG.getNode(ISD::SRL, VT, Val, ShiftAmount); 605f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 606f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Store the two parts 607f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Store1, Store2; 608f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store1 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Lo:Hi, Ptr, 609f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset, NewStoredVT, 610f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->isVolatile(), Alignment); 611f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 612f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 613dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 614f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Store2 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Hi:Lo, Ptr, 615f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset + IncrementSize, 616f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewStoredVT, ST->isVolatile(), Alignment); 617f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 618f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::TokenFactor, MVT::Other, Store1, Store2); 619f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 620f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 621f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedLoad - Expands an unaligned load to 2 half-size loads. 622f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 623f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos VenancioSDOperand ExpandUnalignedLoad(LoadSDNode *LD, SelectionDAG &DAG, 624f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TargetLowering &TLI) { 625f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int SVOffset = LD->getSrcValueOffset(); 626f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Chain = LD->getChain(); 627f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ptr = LD->getBasePtr(); 628f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio MVT::ValueType VT = LD->getValueType(0); 629b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType LoadedVT = LD->getMemoryVT(); 6308155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen if (MVT::isFloatingPoint(VT) || MVT::isVector(VT)) { 631907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen // Expand to a (misaligned) integer load of the same size, 6328155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // then bitconvert to floating point or vector. 633907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen MVT::ValueType intVT; 6343c8b59c546b5d56b2cae74da55e26eb994ed36bfDale Johannesen if (MVT::is128BitVector(LoadedVT) || 6353c8b59c546b5d56b2cae74da55e26eb994ed36bfDale Johannesen LoadedVT == MVT::ppcf128 || LoadedVT == MVT::f128) 6368155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen intVT = MVT::i128; 6373c8b59c546b5d56b2cae74da55e26eb994ed36bfDale Johannesen else if (MVT::is64BitVector(LoadedVT) || LoadedVT == MVT::f64) 638907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i64; 639e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner else if (LoadedVT == MVT::f32) 640907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen intVT = MVT::i32; 641907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen else 6428155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen assert(0 && "Unaligned load of unsupported type"); 643907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 644907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand newLoad = DAG.getLoad(intVT, Chain, Ptr, LD->getSrcValue(), 645907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SVOffset, LD->isVolatile(), 646907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen LD->getAlignment()); 647907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Result = DAG.getNode(ISD::BIT_CONVERT, LoadedVT, newLoad); 6488155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen if (MVT::isFloatingPoint(VT) && LoadedVT != VT) 649907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, VT, Result); 650907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 651907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen SDOperand Ops[] = { Result, Chain }; 652907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen return DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 653907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Ops, 2); 654907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 6558155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen assert(MVT::isInteger(LoadedVT) && !MVT::isVector(LoadedVT) && 656e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner "Unaligned load of unsupported type."); 657e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner 6588155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // Compute the new VT that is half the size of the old one. This is an 6598155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // integer MVT. 660e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned NumBits = MVT::getSizeInBits(LoadedVT); 661e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner MVT::ValueType NewLoadedVT; 6628155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen NewLoadedVT = MVT::getIntegerType(NumBits/2); 663e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner NumBits >>= 1; 664e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner 665e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned Alignment = LD->getAlignment(); 666e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned IncrementSize = NumBits / 8; 667f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ISD::LoadExtType HiExtType = LD->getExtensionType(); 668f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 669f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If the original load is NON_EXTLOAD, the hi part load must be ZEXTLOAD. 670f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (HiExtType == ISD::NON_EXTLOAD) 671f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio HiExtType = ISD::ZEXTLOAD; 672f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 673f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Load the value in two parts 674f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Lo, Hi; 675f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (TLI.isLittleEndian()) { 676f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 677f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset, NewLoadedVT, LD->isVolatile(), Alignment); 678f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 679f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 680f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), 681f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 682dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands MinAlign(Alignment, IncrementSize)); 683f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 684f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), SVOffset, 685f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio NewLoadedVT,LD->isVolatile(), Alignment); 686f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 687f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 688f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), 689f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), 690dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands MinAlign(Alignment, IncrementSize)); 691f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 692f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 693f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // aggregate the two parts 694f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 695f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Result = DAG.getNode(ISD::SHL, VT, Hi, ShiftAmount); 696f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = DAG.getNode(ISD::OR, VT, Result, Lo); 697f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 698f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 699f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi.getValue(1)); 700f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 701f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio SDOperand Ops[] = { Result, TF }; 702f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio return DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), Ops, 2); 703f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 704912095becac923ff614d7b07728eb345ada67765Evan Cheng 705826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// UnrollVectorOp - We know that the given vector has a legal type, however 706826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// the operation it performs is not legal and is an operation that we have 707826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// no way of lowering. "Unroll" the vector, splitting out the scalars and 708826695281344e3a4c4d44d73dd155107aafd689bDan Gohman/// operating on each element individually. 709826695281344e3a4c4d44d73dd155107aafd689bDan GohmanSDOperand SelectionDAGLegalize::UnrollVectorOp(SDOperand Op) { 710826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType VT = Op.getValueType(); 711826695281344e3a4c4d44d73dd155107aafd689bDan Gohman assert(isTypeLegal(VT) && 712826695281344e3a4c4d44d73dd155107aafd689bDan Gohman "Caller should expand or promote operands that are not legal!"); 713826695281344e3a4c4d44d73dd155107aafd689bDan Gohman assert(Op.Val->getNumValues() == 1 && 714826695281344e3a4c4d44d73dd155107aafd689bDan Gohman "Can't unroll a vector with multiple results!"); 715826695281344e3a4c4d44d73dd155107aafd689bDan Gohman unsigned NE = MVT::getVectorNumElements(VT); 716826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 717826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 718826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SmallVector<SDOperand, 8> Scalars; 719826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SmallVector<SDOperand, 4> Operands(Op.getNumOperands()); 720826695281344e3a4c4d44d73dd155107aafd689bDan Gohman for (unsigned i = 0; i != NE; ++i) { 721826695281344e3a4c4d44d73dd155107aafd689bDan Gohman for (unsigned j = 0; j != Op.getNumOperands(); ++j) { 722826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand Operand = Op.getOperand(j); 723826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType OperandVT = Operand.getValueType(); 724826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(OperandVT)) { 725826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // A vector operand; extract a single element. 726826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType OperandEltVT = MVT::getVectorElementType(OperandVT); 727826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operands[j] = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, 728826695281344e3a4c4d44d73dd155107aafd689bDan Gohman OperandEltVT, 729826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operand, 730826695281344e3a4c4d44d73dd155107aafd689bDan Gohman DAG.getConstant(i, MVT::i32)); 731826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } else { 732826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // A scalar operand; just use it as is. 733826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Operands[j] = Operand; 734826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 735826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 736826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Scalars.push_back(DAG.getNode(Op.getOpcode(), EltVT, 737826695281344e3a4c4d44d73dd155107aafd689bDan Gohman &Operands[0], Operands.size())); 738826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 739826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 740826695281344e3a4c4d44d73dd155107aafd689bDan Gohman return DAG.getNode(ISD::BUILD_VECTOR, VT, &Scalars[0], Scalars.size()); 741826695281344e3a4c4d44d73dd155107aafd689bDan Gohman} 742826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 743007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands/// GetFPLibCall - Return the right libcall for the given floating point type. 744007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sandsstatic RTLIB::Libcall GetFPLibCall(MVT::ValueType VT, 745007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F32, 746007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F64, 747007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_F80, 748007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall Call_PPCF128) { 749007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands return 750007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f32 ? Call_F32 : 751007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f64 ? Call_F64 : 752007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::f80 ? Call_F80 : 753007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands VT == MVT::ppcf128 ? Call_PPCF128 : 754007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::UNKNOWN_LIBCALL; 755007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands} 756007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands 757a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// LegalizeOp - We know that the specified value has a legal type, and 758a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// that its operands are legal. Now ensure that the operation itself 759a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// is legal, recursively ensuring that the operands' operations remain 760a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// legal. 7613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris LattnerSDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) { 76209ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) // Allow illegal target nodes. 76309ec1b058331aadb29a348091611d23892b5c492Chris Lattner return Op; 76409ec1b058331aadb29a348091611d23892b5c492Chris Lattner 765c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Op.getValueType()) && 766e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner "Caller should expand or promote operands that are not legal!"); 76745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner SDNode *Node = Op.Val; 768e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 7693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // If this operation defines any values that cannot be represented in a 770e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner // register on this target, make sure to expand or promote them. 77145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner if (Node->getNumValues() > 1) { 77245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 773c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (getTypeAction(Node->getValueType(i)) != Legal) { 774c7029805ef35ce9805931067b841e6af11db382eChris Lattner HandleOp(Op.getValue(i)); 7753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(LegalizedNodes.count(Op) && 776c7029805ef35ce9805931067b841e6af11db382eChris Lattner "Handling didn't add legal operands!"); 77703c8546ec57523970874917854a2fb77b1ff598eChris Lattner return LegalizedNodes[Op]; 7783e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 7803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 78145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 78245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 783718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 784e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 7853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7869373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand Tmp1, Tmp2, Tmp3, Tmp4; 7873e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Result = Op; 788456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 789456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 7903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 791948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::FrameIndex: 792948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::EntryToken: 793948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::Register: 794948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::BasicBlock: 795948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetFrameIndex: 79637efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::TargetJumpTable: 797948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstant: 7983181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case ISD::TargetConstantFP: 799948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetConstantPool: 800948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetGlobalAddress: 801b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::TargetGlobalTLSAddress: 802948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::TargetExternalSymbol: 803948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::VALUETYPE: 804948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::SRCVALUE: 80569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case ISD::MEMOPERAND: 806948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::STRING: 807948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case ISD::CONDCODE: 808948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // Primitives must all be legal. 809a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 810948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner "This must be legal!"); 811948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 8123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 813d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 814d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // If this is a target node, legalize it by legalizing the operands then 815d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // passing it through. 816f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 817c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 818d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 819c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner 820f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); 821d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 822d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 823d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); 824d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner return Result.getValue(Op.ResNo); 825d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 826d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner // Otherwise this is an unhandled builtin node. splat. 827e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 82839833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 829e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 8303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to legalize this operator!"); 8313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 8320d3b67809ccab229a03db8c1bede852fb89eb081Lauro Ramos Venancio case ISD::GLOBAL_OFFSET_TABLE: 8333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::GlobalAddress: 834b3a0417cad8b625acc3033bd5e24afb9ffd0b084Lauro Ramos Venancio case ISD::GlobalTLSAddress: 83503c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::ExternalSymbol: 83637efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::ConstantPool: 83737efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::JumpTable: // Nothing to do. 8380c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 8390c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner default: assert(0 && "This action is not supported yet!"); 840948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner case TargetLowering::Custom: 841948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner Tmp1 = TLI.LowerOperation(Op, DAG); 842948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner if (Tmp1.Val) Result = Tmp1; 843948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner // FALLTHROUGH if the target doesn't want to lower this op after all. 8440c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner case TargetLowering::Legal: 8450c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner break; 8460c8fbe33a4bdf7c60e0cfd5a9c86499c817d9f1aChris Lattner } 8473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 848bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::FRAMEADDR: 849bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman case ISD::RETURNADDR: 850bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // The only option for these nodes is to custom lower them. If the target 851bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman // does not custom lower them, then return zero. 852bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Tmp1 = TLI.LowerOperation(Op, DAG); 853bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman if (Tmp1.Val) 854bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = Tmp1; 855bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman else 856bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman Result = DAG.getConstant(0, TLI.getPointerTy()); 857bcc5f36765e8111c13873a0c0dc874c92385d808Nate Begeman break; 858055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov case ISD::FRAME_TO_ARGS_OFFSET: { 859066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 860066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 861066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov default: assert(0 && "This action is not supported yet!"); 862066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Custom: 863066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 864066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov if (Result.Val) break; 865066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov // Fall Thru 866066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov case TargetLowering::Legal: 867066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov Result = DAG.getConstant(0, VT); 868066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 869066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov } 870055c5449a4046a5e1a5210d2f91aee4e3901cccfAnton Korobeynikov } 871066f7b40f8c442dfd52cdbc371a5f6c623d5ba90Anton Korobeynikov break; 8722bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case ISD::EXCEPTIONADDR: { 8732bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 8742bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey MVT::ValueType VT = Node->getValueType(0); 8752bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 8762bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey default: assert(0 && "This action is not supported yet!"); 8772bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Expand: { 8788782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionAddressRegister(); 879b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Result = DAG.getCopyFromReg(Tmp1, Reg, VT); 8802bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 8812bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 8822bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey case TargetLowering::Custom: 8832bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey Result = TLI.LowerOperation(Op, DAG); 8842bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey if (Result.Val) break; 8852bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey // Fall Thru 886eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 887eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp1 }; 888eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 889b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Ops, 2); 8908782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 8918782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 8928782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 893eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 894b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands if (Result.Val->getNumValues() == 1) break; 895b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 896b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands assert(Result.Val->getNumValues() == 2 && 897b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands "Cannot return more than two values!"); 898b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 899b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // Since we produced two values, make sure to remember that we 900b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // legalized both of them. 901b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp1 = LegalizeOp(Result); 902b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); 903b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(0), Tmp1); 904b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(1), Tmp2); 905b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands return Op.ResNo ? Tmp2 : Tmp1; 9068782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case ISD::EHSELECTION: { 9078782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); 9088782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); 9098782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey MVT::ValueType VT = Node->getValueType(0); 9108782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 9118782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey default: assert(0 && "This action is not supported yet!"); 9128782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Expand: { 9138782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey unsigned Reg = TLI.getExceptionSelectorRegister(); 914b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Result = DAG.getCopyFromReg(Tmp2, Reg, VT); 9158782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey } 9168782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey break; 9178782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey case TargetLowering::Custom: 9188782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey Result = TLI.LowerOperation(Op, DAG); 9198782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey if (Result.Val) break; 9208782d481a3c720304540254a7b71d25bbe7cbf49Jim Laskey // Fall Thru 921eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner case TargetLowering::Legal: { 922eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner SDOperand Ops[] = { DAG.getConstant(0, VT), Tmp2 }; 923eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner Result = DAG.getNode(ISD::MERGE_VALUES, DAG.getVTList(VT, MVT::Other), 924b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Ops, 2); 9252bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey break; 9262bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 9272bc210d99f5a7322a1ae84775eba351d9ab6ea85Jim Laskey } 928eb7f34f2cb1584f155b9cefdb246b300fb2fc9c4Chris Lattner } 929b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands if (Result.Val->getNumValues() == 1) break; 930b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 931b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands assert(Result.Val->getNumValues() == 2 && 932b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands "Cannot return more than two values!"); 933b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands 934b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // Since we produced two values, make sure to remember that we 935b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands // legalized both of them. 936b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp1 = LegalizeOp(Result); 937b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); 938b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(0), Tmp1); 939b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands AddLegalizedOperand(Op.getValue(1), Tmp2); 940b027fa001f16660a231a54ecea6a79f5c7855d7cDuncan Sands return Op.ResNo ? Tmp2 : Tmp1; 9416d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky case ISD::EH_RETURN: { 9422365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 9432365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // The only "good" option for this node is to custom lower it. 9442365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 9452365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov default: assert(0 && "This action is not supported at all!"); 9462365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Custom: 9472365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 9482365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov if (Result.Val) break; 9492365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Fall Thru 9502365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov case TargetLowering::Legal: 9512365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov // Target does not know, how to lower this, lower to noop 9522365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov Result = LegalizeOp(Node->getOperand(0)); 9532365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 9542365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov } 9556d4b711e7f2e27d94d3c49dc9e7575dbe0f242e0Nick Lewycky } 9562365f51ed03afe6993bae962fdc2e5a956a64cd5Anton Korobeynikov break; 95708951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertSext: 95808951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner case ISD::AssertZext: 95908951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 960c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 96108951a32fbc1de3ec3746e14109a74ca506ca251Chris Lattner break; 962308575be66ec3870d27b19df044fda18448feb41Chris Lattner case ISD::MERGE_VALUES: 963c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner // Legalize eliminates MERGE_VALUES nodes. 964456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = Node->getOperand(Op.ResNo); 965456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 96669a52155d2eff066b49dbac385113002fd9dba14Chris Lattner case ISD::CopyFromReg: 96769a52155d2eff066b49dbac385113002fd9dba14Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 9687310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner Result = Op.getValue(0); 969f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 2) { 970c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 9717310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 972f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); 973c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 3) { 974f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 975c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 976c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 977c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 978c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } 9797310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); 9807310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 98113c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // Since CopyFromReg produces two values, make sure to remember that we 98213c184de29c09294ed63b01ac43e1b46c049278eChris Lattner // legalized both of them. 98313c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 98413c184de29c09294ed63b01ac43e1b46c049278eChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 98513c184de29c09294ed63b01ac43e1b46c049278eChris Lattner return Result.getValue(Op.ResNo); 986fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: { 987fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman MVT::ValueType VT = Op.getValueType(); 988fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman switch (TLI.getOperationAction(ISD::UNDEF, VT)) { 989ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman default: assert(0 && "This action is not supported yet!"); 990ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Expand: 991fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman if (MVT::isInteger(VT)) 992fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getConstant(0, VT); 993fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else if (MVT::isFloatingPoint(VT)) 994f41db2136fe50e1a92aabfcb3ba1ec1f70f5f0d5Dale Johannesen Result = DAG.getConstantFP(APFloat(APInt(MVT::getSizeInBits(VT), 0)), 995f41db2136fe50e1a92aabfcb3ba1ec1f70f5f0d5Dale Johannesen VT); 996fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman else 997fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman assert(0 && "Unknown value type!"); 998fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 999ea19cd51aaf87c5cc19e7cdc2c32ddbefcac7b8fNate Begeman case TargetLowering::Legal: 1000fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 1001fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 1002fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 1003fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman } 1004d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 100548b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_W_CHAIN: 100648b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_WO_CHAIN: 100748b61a729df6576c8833a83893d4086bddff69a5Chris Lattner case ISD::INTRINSIC_VOID: { 1008f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 1009d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1010d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1011f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 101210d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner 101310d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner // Allow the target to custom lower its intrinsics if it wants to. 101448b61a729df6576c8833a83893d4086bddff69a5Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == 101510d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner TargetLowering::Custom) { 101610d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 101710d7fa62fffbceed580c34a00bd30f16643f6607Chris Lattner if (Tmp3.Val) Result = Tmp3; 101813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner } 101913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 102013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner if (Result.Val->getNumValues() == 1) break; 102113fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 102213fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Must have return value and chain result. 102313fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner assert(Result.Val->getNumValues() == 2 && 102413fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner "Cannot return more than two values!"); 102513fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner 102613fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // Since loads produce two values, make sure to remember that we 102713fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner // legalized both of them. 102813fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 102913fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 103013fc2f1d270cdedffb72b33621369cee9a2cdaaaChris Lattner return Result.getValue(Op.ResNo); 1031d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner } 103236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 103336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case ISD::LOCATION: 103436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner assert(Node->getNumOperands() == 5 && "Invalid LOCATION node!"); 103536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. 103636ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 103736ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner switch (TLI.getOperationAction(ISD::LOCATION, MVT::Other)) { 103836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Promote: 103936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner default: assert(0 && "This action is not supported yet!"); 1040f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case TargetLowering::Expand: { 104144c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey MachineModuleInfo *MMI = DAG.getMachineModuleInfo(); 1042abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); 10431ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey bool useLABEL = TLI.isOperationLegal(ISD::LABEL, MVT::Other); 1044abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 104544c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey if (MMI && (useDEBUG_LOC || useLABEL)) { 1046abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &FName = 1047e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(3))->getValue(); 1048abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey const std::string &DirName = 1049e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey cast<StringSDNode>(Node->getOperand(4))->getValue(); 105044c3b9fdd416c79f4b67cde1aecfced5921efd81Jim Laskey unsigned SrcFile = MMI->RecordSource(DirName, FName); 1051abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 1052bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 1053abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(Tmp1); // chain 1054abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand LineOp = Node->getOperand(1); 1055abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey SDOperand ColOp = Node->getOperand(2); 1056abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 1057abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey if (useDEBUG_LOC) { 1058abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(LineOp); // line # 1059abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(ColOp); // col # 1060abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(SrcFile, MVT::i32)); // source file id 1061bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, &Ops[0], Ops.size()); 1062abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } else { 1063d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Line = cast<ConstantSDNode>(LineOp)->getValue(); 1064d0e58e36a9857c45ecdc910ec8db04c21e143db5Jim Laskey unsigned Col = cast<ConstantSDNode>(ColOp)->getValue(); 1065a647c92ec2b3c91e1e6de25cc5c7860912c7626bEvan Cheng unsigned ID = MMI->RecordSourceLine(Line, Col, SrcFile); 1066abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Ops.push_back(DAG.getConstant(ID, MVT::i32)); 1067bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng Ops.push_back(DAG.getConstant(0, MVT::i32)); // a debug label 1068bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng Result = DAG.getNode(ISD::LABEL, MVT::Other, &Ops[0], Ops.size()); 1069abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1070e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } else { 1071e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey Result = Tmp1; // chain 1072e81aecbae69d4b3bd24523ec87673632d3b0beecJim Laskey } 107336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1074e773673d8e0094bbff2f9ab2f2da9ecb5c4d0909Chris Lattner } 107536ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner case TargetLowering::Legal: 10769ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (Tmp1 != Node->getOperand(0) || 10779ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner getTypeAction(Node->getOperand(1).getValueType()) == Promote) { 1078f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 107936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Tmp1); 10809ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner if (getTypeAction(Node->getOperand(1).getValueType()) == Legal) { 10819ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(1)); // line # must be legal. 10829ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(Node->getOperand(2)); // col # must be legal. 10839ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } else { 10849ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner // Otherwise promote them. 10859ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(1))); 10869ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner Ops.push_back(PromoteOp(Node->getOperand(2))); 10879ad17c9c9abfd6e011751d2fd2b03448e1dccb71Chris Lattner } 108836ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(3)); // filename must be legal. 108936ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner Ops.push_back(Node->getOperand(4)); // working dir # must be legal. 1090f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 109136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 109236ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 109336ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner } 109436ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner break; 1095a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng 1096a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng case ISD::DECLARE: 1097a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng assert(Node->getNumOperands() == 3 && "Invalid DECLARE node!"); 1098a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng switch (TLI.getOperationAction(ISD::DECLARE, MVT::Other)) { 1099a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng default: assert(0 && "This action is not supported yet!"); 1100a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng case TargetLowering::Legal: 1101a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1102a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the address. 1103a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the variable. 1104a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1105a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng break; 1106e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner case TargetLowering::Expand: 1107e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 1108e07415d4006b923ed1d2057ffa5a493353e28f9eChris Lattner break; 1109a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng } 1110a844bdeab31ef04221e7ef59a8467893584cc14dEvan Cheng break; 1111f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey 1112f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey case ISD::DEBUG_LOC: 1113abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); 1114f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { 1115f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey default: assert(0 && "This action is not supported yet!"); 1116abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1117abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1118abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. 1119abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. 1120abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. 1121c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); 1122abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1123abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey } 1124abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey break; 1125abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey 11261ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey case ISD::LABEL: 1127bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng assert(Node->getNumOperands() == 3 && "Invalid LABEL node!"); 11281ee29257428960fede862fcfdbe80d5d007927e9Jim Laskey switch (TLI.getOperationAction(ISD::LABEL, MVT::Other)) { 1129abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey default: assert(0 && "This action is not supported yet!"); 1130abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey case TargetLowering::Legal: 1131abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1132abf6d1784b2d4bbcb7d20ab64881f77d755059f6Jim Laskey Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the label id. 1133bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the "flavor" operand. 1134bb81d97feb396a8bb21d074db1c57e9f66525f40Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1135f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey break; 1136a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner case TargetLowering::Expand: 1137a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner Result = LegalizeOp(Node->getOperand(0)); 1138a9569f10de686119ff34b89e102b5a3cbafdf195Chris Lattner break; 1139f5395cee6a24699a016b2e379cf4804b09ce5030Jim Laskey } 1140551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman break; 114136ce69195ed488034d0bb11180cc2ebd923679c8Chris Lattner 114222c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth case ISD::MEMBARRIER: { 114322c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth assert(Node->getNumOperands() == 6 && "Invalid MemBarrier node!"); 1144d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth switch (TLI.getOperationAction(ISD::MEMBARRIER, MVT::Other)) { 1145d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth default: assert(0 && "This action is not supported yet!"); 1146d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth case TargetLowering::Legal: { 1147d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth SDOperand Ops[6]; 1148d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Ops[0] = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1149e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands for (int x = 1; x < 6; ++x) { 1150e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands Ops[x] = Node->getOperand(x); 1151e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands if (!isTypeLegal(Ops[x].getValueType())) 1152e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands Ops[x] = PromoteOp(Ops[x]); 1153e90a615f37aaee2ad9259c0ef21586d5e4142147Duncan Sands } 1154d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Result = DAG.UpdateNodeOperands(Result, &Ops[0], 6); 1155d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth break; 1156d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth } 1157d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth case TargetLowering::Expand: 1158d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth //There is no libgcc call for this op 1159d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth Result = Node->getOperand(0); // Noop 1160d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth break; 1161d497d9fab6e90499c703f3e672ec001dbfa074f9Andrew Lenharth } 116222c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth break; 116322c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth } 116422c5c1b2dfcb1da6a7ebfebea903401fc77d56e6Andrew Lenharth 1165ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_LCS: 1166ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_LAS: 1167ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_SWAP: { 1168ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth assert(((Node->getNumOperands() == 4 && Node->getOpcode() == ISD::ATOMIC_LCS) || 1169ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth (Node->getNumOperands() == 3 && Node->getOpcode() == ISD::ATOMIC_LAS) || 1170ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth (Node->getNumOperands() == 3 && Node->getOpcode() == ISD::ATOMIC_SWAP)) && 117126ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth "Invalid Atomic node!"); 1172ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth int num = Node->getOpcode() == ISD::ATOMIC_LCS ? 4 : 3; 117326ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth SDOperand Ops[4]; 117426ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth for (int x = 0; x < num; ++x) 117526ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth Ops[x] = LegalizeOp(Node->getOperand(x)); 117626ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth Result = DAG.UpdateNodeOperands(Result, &Ops[0], num); 117726ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth 117826ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 1179ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth default: assert(0 && "This action is not supported yet!"); 118026ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth case TargetLowering::Custom: 118126ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth Result = TLI.LowerOperation(Result, DAG); 118226ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth break; 118326ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth case TargetLowering::Legal: 1184ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 1185ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 118626ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 118726ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 118826ed8697d4733f4ad588ef117ec4387560770ad0Andrew Lenharth return Result.getValue(Op.ResNo); 1189ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 1190ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth 1191c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel case ISD::Constant: { 1192c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel ConstantSDNode *CN = cast<ConstantSDNode>(Node); 1193c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel unsigned opAction = 1194c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel TLI.getOperationAction(ISD::Constant, CN->getValueType(0)); 1195c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel 11963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // We know we don't need to expand constants here, constants only have one 11973e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // value and we check that it is fine above. 11983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1199c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (opAction == TargetLowering::Custom) { 1200c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 1201c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel if (Tmp1.Val) 1202c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel Result = Tmp1; 1203c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 12043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1205c1513d24eab4b193c951f3cad450ef344e88e0a6Scott Michel } 12063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ConstantFP: { 12073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Spill FP immediates to the constant pool if the target cannot directly 12083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // codegen them. Targets often have some immediate values that can be 12093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // efficiently generated into an FP register without a load. We explicitly 12103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // leave these constants as ConstantFP nodes for the target to deal with. 12113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 12123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 12133181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { 12143181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner default: assert(0 && "This action is not supported yet!"); 1215e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman case TargetLowering::Legal: 1216e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 12173181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner case TargetLowering::Custom: 12183181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 12193181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner if (Tmp3.Val) { 12203181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner Result = Tmp3; 12213181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner break; 12223181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner } 12233181a771ff5b2090b7ed55f9b18a684ea8fe625aChris Lattner // FALLTHROUGH 1224e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman case TargetLowering::Expand: { 1225e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman // Check to see if this FP immediate is already legal. 1226e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman bool isLegal = false; 1227e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), 1228e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman E = TLI.legal_fpimm_end(); I != E; ++I) { 1229e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman if (CFP->isExactlyValue(*I)) { 1230e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman isLegal = true; 1231e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 1232e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 1233e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 1234e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman // If this is a legal constant, turn it into a TargetConstantFP node. 1235e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman if (isLegal) 1236e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman break; 1237279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Result = ExpandConstantFP(CFP, true, DAG, TLI); 12383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1239e179584f9b740cf3a36bde70f8cab40de59b8081Nate Begeman } 12403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 12413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1242040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner case ISD::TokenFactor: 1243040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner if (Node->getNumOperands() == 2) { 1244c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1245c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1246c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1247c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else if (Node->getNumOperands() == 3) { 1248c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 1249c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1250c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 1251c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1252040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner } else { 1253f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 1254040c11c24e9f6c172eaf680e135d9bb466c284b2Chris Lattner // Legalize the operands. 1255c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 1256c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 1257f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1258a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner } 1259a385e9b20fa7d37d3842ce15afd412f617d83a27Chris Lattner break; 1260fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 1261fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner case ISD::FORMAL_ARGUMENTS: 1262f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner case ISD::CALL: 1263fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner // The only option for this is to custom lower it. 1264b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); 1265b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner assert(Tmp3.Val && "Target didn't custom lower this node!"); 12660f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 12670f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // The number of incoming and outgoing values should match; unless the final 12680f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // outgoing value is a flag. 12690f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling assert((Tmp3.Val->getNumValues() == Result.Val->getNumValues() || 12700f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling (Tmp3.Val->getNumValues() == Result.Val->getNumValues() + 1 && 12710f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Tmp3.Val->getValueType(Tmp3.Val->getNumValues() - 1) == 12720f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling MVT::Flag)) && 1273b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner "Lowering call/formal_arguments produced unexpected # results!"); 1274e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner 1275f4ec817299a4187044a6162c2f520772b3ad69a0Chris Lattner // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to 1276e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner // remember that we legalized all of them, so it doesn't get relegalized. 1277b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner for (unsigned i = 0, e = Tmp3.Val->getNumValues(); i != e; ++i) { 12780f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling if (Tmp3.Val->getValueType(i) == MVT::Flag) 12790f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling continue; 1280b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp3.getValue(i)); 1281e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner if (Op.ResNo == i) 1282e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner Tmp2 = Tmp1; 1283e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner AddLegalizedOperand(SDOperand(Node, i), Tmp1); 1284e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner } 1285e2e41730ccfa9bebfabbd17ab3454aa2bb620b2aChris Lattner return Tmp2; 1286557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::EXTRACT_SUBREG: { 1287557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1288557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(1)); 1289557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1290557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1291557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 1292557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1293557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1294557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb case ISD::INSERT_SUBREG: { 1295557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp1 = LegalizeOp(Node->getOperand(0)); 1296557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp2 = LegalizeOp(Node->getOperand(1)); 1297557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(2)); 1298557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb assert(idx && "Operand must be a constant"); 1299557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Tmp3 = DAG.getTargetConstant(idx->getValue(), idx->getValueType(0)); 1300557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1301557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb } 1302557c3631d320c5731e55b6f818a1c7b2d4d97176Christopher Lamb break; 1303b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 1304b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 13052332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 13062332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 13072332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 13082332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner if (Tmp3.Val) { 13092332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 13102332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13112332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 13122332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 1313ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 1314ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = ExpandBUILD_VECTOR(Result.Val); 1315b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 13162332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 13172332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13182332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case ISD::INSERT_VECTOR_ELT: 13192332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec 13202332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo 13210325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 13220325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // The type of the value to insert may not be legal, even though the vector 13230325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // type is legal. Legalize/Promote accordingly. We do not handle Expand 13240325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // here. 13250325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 13260325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman default: assert(0 && "Cannot expand insert element operand"); 13270325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); break; 13280325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman case Promote: Tmp2 = PromoteOp(Node->getOperand(1)); break; 13290325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman } 13302332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 13312332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner 13322332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, 13332332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Node->getValueType(0))) { 13342332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: assert(0 && "This action is not supported yet!"); 13352332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Legal: 13362332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13372332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 13382281a991414f681c482157265461b29a923ef620Nate Begeman Tmp4 = TLI.LowerOperation(Result, DAG); 13392281a991414f681c482157265461b29a923ef620Nate Begeman if (Tmp4.Val) { 13402281a991414f681c482157265461b29a923ef620Nate Begeman Result = Tmp4; 13412332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 13422332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 13432332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 13442332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Expand: { 13458d5a894501b7546dee94df03118b90126c420820Chris Lattner // If the insert index is a constant, codegen this as a scalar_to_vector, 13468d5a894501b7546dee94df03118b90126c420820Chris Lattner // then a shuffle that inserts it into the right position in the vector. 13478d5a894501b7546dee94df03118b90126c420820Chris Lattner if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { 13480325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // SCALAR_TO_VECTOR requires that the type of the value being inserted 13490325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // match the element type of the vector being created. 13500325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman if (Tmp2.getValueType() == 13510325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman MVT::getVectorElementType(Op.getValueType())) { 13520325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman SDOperand ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, 13530325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Tmp1.getValueType(), Tmp2); 13540325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 13550325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman unsigned NumElts = MVT::getVectorNumElements(Tmp1.getValueType()); 13560325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman MVT::ValueType ShufMaskVT = MVT::getIntVectorWithNumElements(NumElts); 13570325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman MVT::ValueType ShufMaskEltVT = MVT::getVectorElementType(ShufMaskVT); 13580325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 13590325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // We generate a shuffle of InVec and ScVec, so the shuffle mask 13600325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // should be 0,1,2,3,4,5... with the appropriate element replaced with 13610325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman // elt 0 of the RHS. 13620325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman SmallVector<SDOperand, 8> ShufOps; 13630325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman for (unsigned i = 0; i != NumElts; ++i) { 13640325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman if (i != InsertPos->getValue()) 13650325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); 13660325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman else 13670325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); 13680325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman } 13690325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman SDOperand ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, 13700325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman &ShufOps[0], ShufOps.size()); 13710325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman 13720325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), 13730325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Tmp1, ScVec, ShufMask); 13740325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Result = LegalizeOp(Result); 13750325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman break; 13768d5a894501b7546dee94df03118b90126c420820Chris Lattner } 13778d5a894501b7546dee94df03118b90126c420820Chris Lattner } 13788d5a894501b7546dee94df03118b90126c420820Chris Lattner 13792332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // If the target doesn't support this, we have to spill the input vector 13802332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // to a temporary stack slot, update the element, then reload it. This is 13812332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // badness. We could also load the value into a vector register (either 13822332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // with a "move to register" or "extload into register" instruction, then 13832332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // permute it into place, if the idx is a constant and if the idx is 13842332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // supported by the target. 1385f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType VT = Tmp1.getValueType(); 13860325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 1387f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType IdxVT = Tmp3.getValueType(); 1388f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 138985dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(VT); 139069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 1391bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(StackPtr.Val); 139269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman int SPFI = StackPtrFI->getIndex(); 139369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 1394eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the vector. 139569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Tmp1, StackPtr, 13963069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 139769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SPFI); 1398eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng 1399eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Truncate or zero extend offset to target pointer type. 1400f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned CastOpc = (IdxVT > PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 1401f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); 1402eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Add the offset to the index. 1403f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng unsigned EltSize = MVT::getSizeInBits(EltVT)/8; 1404f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 1405f6bf87f2cc685d13d6a8fa37693425956b33a840Evan Cheng SDOperand StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); 1406eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Store the scalar value. 14070325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman Ch = DAG.getTruncStore(Ch, Tmp2, StackPtr2, 14080325d90348f33e8aa719cd70e4663e7b108297fdNate Begeman PseudoSourceValue::getFixedStack(), SPFI, EltVT); 1409eb0b461cf4884bf2c98e463663a298e5c4ae9883Evan Cheng // Load the updated vector. 141069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Result = DAG.getLoad(VT, Ch, StackPtr, 14113069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), SPFI); 14122332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 14132332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14142332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 14152332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 1416ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case ISD::SCALAR_TO_VECTOR: 14174352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { 14184352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 14194352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 14204352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 14214352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 1422ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal 1423ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 1424ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, 1425ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getValueType(0))) { 1426ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner default: assert(0 && "This action is not supported yet!"); 1427ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Legal: 1428ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 14294d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner case TargetLowering::Custom: 14304d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 14314d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner if (Tmp3.Val) { 14324d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner Result = Tmp3; 14334d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner break; 14344d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner } 14354d3abee6183f110c9db56b94b0a4b5f8c985002aChris Lattner // FALLTHROUGH 14364352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Expand: 14374352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); 1438ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 1439ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1440ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner break; 144187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner case ISD::VECTOR_SHUFFLE: 144287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, 144387100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. 144487100e0b83b808757bf44dabecd1d1048255d1adChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 144587100e0b83b808757bf44dabecd1d1048255d1adChris Lattner 144687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // Allow targets to custom lower the SHUFFLEs they support. 14474352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { 14484352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner default: assert(0 && "Unknown operation action!"); 14494352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Legal: 14504352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && 14514352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner "vector shuffle should not be created if not legal!"); 14524352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 14534352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Custom: 145418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Tmp3 = TLI.LowerOperation(Result, DAG); 145518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Tmp3.Val) { 145618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Result = Tmp3; 145718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng break; 145818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 145918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng // FALLTHROUGH 146018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng case TargetLowering::Expand: { 146118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType VT = Node->getValueType(0); 146251eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MVT::ValueType EltVT = MVT::getVectorElementType(VT); 146318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng MVT::ValueType PtrVT = TLI.getPointerTy(); 146418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Mask = Node->getOperand(2); 146518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned NumElems = Mask.getNumOperands(); 1466bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand,8> Ops; 146718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng for (unsigned i = 0; i != NumElems; ++i) { 146818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng SDOperand Arg = Mask.getOperand(i); 146918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Arg.getOpcode() == ISD::UNDEF) { 147018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); 147118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } else { 147218dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); 147318dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng unsigned Idx = cast<ConstantSDNode>(Arg)->getValue(); 147418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng if (Idx < NumElems) 147518dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, 147618dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx, PtrVT))); 147718dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng else 147818dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, 147918dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng DAG.getConstant(Idx - NumElems, PtrVT))); 148018dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 148118dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 1482bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); 14834352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 148418dd6d0a2aeb3b827391f46996a7b40c9b1f907aEvan Cheng } 14854352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner case TargetLowering::Promote: { 14864352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Change base type to a different vector type. 14874352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType OVT = Node->getValueType(0); 14884352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 14894352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 14904352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Cast the two input vectors. 14914352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 14924352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 14934352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 14944352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Convert the shuffle mask to the right # elements. 14954352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Tmp3 = SDOperand(isShuffleLegal(OVT, Node->getOperand(2)), 0); 14964352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner assert(Tmp3.Val && "Shuffle not legal?"); 14974352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); 14984352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 14994352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner break; 15004352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 150187100e0b83b808757bf44dabecd1d1048255d1adChris Lattner } 150287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner break; 1503384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 1504384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner case ISD::EXTRACT_VECTOR_ELT: 15057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 1506384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); 1507384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 15087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_VECTOR_ELT(Result); 1509384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner break; 1510384504cea6c392125a2318d8bbb7f25aa0bbff7eChris Lattner 15117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 15127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp1 = Node->getOperand(0); 15137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); 15147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 15157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ExpandEXTRACT_SUBVECTOR(Result); 15166595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 15176595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 15186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 15196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 15206831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15216831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 15226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 15236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 152400755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner {SmallPtrSet<SDNode*, 32> NodesLeadingTo; 15256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1526c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).Val, Node, 1527c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1528c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 15296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15306831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that we legalized all of the inputs (which may have inserted 15316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // libcalls) create the new CALLSEQ_START node. 15326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 15336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Merge in the last call, to ensure that this call start after the last 15356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1536c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1537b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 1538b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1539b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 15406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 15426831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1543f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 15446831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 1545f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 15466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 15476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 15494b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 15504b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 15514b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 15524b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 15536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 15546831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // sequence have been legalized, legalize the call itself. During this 15556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 15566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 15576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 15586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InCallSEQ = LastCALLSEQ_END; 15596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 15606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = SDOperand(CallEnd, 0); 15616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 15626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 15646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 15656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 15666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 15676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 156816cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 15696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 15706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 15716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (LastCALLSEQ_END.Val != Node) { 15726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(SDOperand(FindCallStartFromCallEnd(Node), 0)); 1573718071c476014cb0aaff9c7d018120d5a8930217Chris Lattner DenseMap<SDOperand, SDOperand>::iterator I = LegalizedNodes.find(Op); 15746831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 15756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 15766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 15776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 15786831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 15796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, the call start has been legalized and everything is going 15806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 15813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 158270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 158370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 158470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 158570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1586f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 158770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1588f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 158970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 159070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 159170814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 159270814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 159370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1594f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 159570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 159670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1597f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 159870814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 15996a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 16004b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 16016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 16026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 16034b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner 16044b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 16054b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 16064b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 16074b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 16084b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner return Result.getValue(Op.ResNo); 1609a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case ISD::DYNAMIC_STACKALLOC: { 161061bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1611fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 1612fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. 1613fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. 1614c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 1615fa404e8a76abfdafefb8806b35f596d288609496Chris Lattner 1616c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 16175f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp2 = Result.getValue(1); 161861bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1619a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng default: assert(0 && "This action is not supported yet!"); 1620903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Expand: { 1621903d278a9b7398d8905c90832e587e0556c52789Chris Lattner unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 1622903d278a9b7398d8905c90832e587e0556c52789Chris Lattner assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 1623903d278a9b7398d8905c90832e587e0556c52789Chris Lattner " not tell us which reg is the stack pointer!"); 1624903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Chain = Tmp1.getOperand(0); 16250f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 16260f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // Chain the dynamic stack allocation so that it doesn't modify the stack 16270f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling // pointer when other instructions are using the stack. 16280f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Chain = DAG.getCALLSEQ_START(Chain, 16290f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy())); 16300f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1631903d278a9b7398d8905c90832e587e0556c52789Chris Lattner SDOperand Size = Tmp2.getOperand(1); 163261bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng SDOperand SP = DAG.getCopyFromReg(Chain, SPReg, VT); 163361bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Chain = SP.getValue(1); 163461bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned Align = cast<ConstantSDNode>(Tmp3)->getValue(); 163561bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng unsigned StackAlign = 163661bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng TLI.getTargetMachine().getFrameInfo()->getStackAlignment(); 163761bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng if (Align > StackAlign) 16383e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng SP = DAG.getNode(ISD::AND, VT, SP, 16393e20bba5eb5df2fdd3e6655c8470084cf05032d4Evan Cheng DAG.getConstant(-(uint64_t)Align, VT)); 164061bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng Tmp1 = DAG.getNode(ISD::SUB, VT, SP, Size); // Value 16410f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Chain = DAG.getCopyToReg(Chain, SPReg, Tmp1); // Output chain 16420f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 16430f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling Tmp2 = 16440f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getCALLSEQ_END(Chain, 16450f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy()), 16460f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling DAG.getConstant(0, TLI.getPointerTy()), 16470f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling SDOperand()); 16480f8d9c04d9feef86cee35cf5fecfb348a6b3de50Bill Wendling 1649c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 1650c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 1651903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1652903d278a9b7398d8905c90832e587e0556c52789Chris Lattner } 1653903d278a9b7398d8905c90832e587e0556c52789Chris Lattner case TargetLowering::Custom: 16545f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner Tmp3 = TLI.LowerOperation(Tmp1, DAG); 16555f652295c27826f26547cf5eb4096a59d86b56b8Chris Lattner if (Tmp3.Val) { 1656c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 1657c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1658a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1659903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1660a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng case TargetLowering::Legal: 1661903d278a9b7398d8905c90832e587e0556c52789Chris Lattner break; 1662a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 1663903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // Since this op produce two values, make sure to remember that we 1664903d278a9b7398d8905c90832e587e0556c52789Chris Lattner // legalized both of them. 1665c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 1666c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 1667903d278a9b7398d8905c90832e587e0556c52789Chris Lattner return Op.ResNo ? Tmp2 : Tmp1; 1668a7dce3c6c29fb9513d215c1bc44b01865571b4c2Evan Cheng } 166925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner case ISD::INLINEASM: { 1670f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops(Node->op_begin(), Node->op_end()); 167125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool Changed = false; 167225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // Legalize all of the operands of the inline asm, in case they are nodes 167325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // that need to be expanded or something. Note we skip the asm string and 167425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner // all of the TargetConstant flags. 167525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[0]); 167625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = Op != Ops[0]; 167725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[0] = Op; 167825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 167925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner bool HasInFlag = Ops.back().getValueType() == MVT::Flag; 168025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { 168125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getValue() >> 3; 168225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner for (++i; NumVals; ++i, --NumVals) { 168325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner SDOperand Op = LegalizeOp(Ops[i]); 168425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Op != Ops[i]) { 168525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed = true; 168625a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops[i] = Op; 168725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 168825a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 168925a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 169025a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner 169125a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (HasInFlag) { 169225a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Op = LegalizeOp(Ops.back()); 169325a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Changed |= Op != Ops.back(); 169425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner Ops.back() = Op; 169525a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1696ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 169725a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner if (Changed) 1698f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 1699ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner 1700ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner // INLINE asm returns a chain and flag, make sure to add both to the map. 1701c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 1702ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 1703ce7518ce92f45568dc7d4cbb863284afb962fec5Chris Lattner return Result.getValue(Op.ResNo); 170425a022c7801b047b31d7610386e8a9ddca878cb1Chris Lattner } 1705c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner case ISD::BR: 1706c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17076831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 17086831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 17096831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 17106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 17116831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1712c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 1713c7af17923e3bb6053f529679ef0be5399d3519edChris Lattner break; 171437efe6764568a3829fee26aba532283131d1a104Nate Begeman case ISD::BRIND: 171537efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 171637efe6764568a3829fee26aba532283131d1a104Nate Begeman // Ensure that libcalls are emitted before a branch. 171737efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 171837efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp1 = LegalizeOp(Tmp1); 171937efe6764568a3829fee26aba532283131d1a104Nate Begeman LastCALLSEQ_END = DAG.getEntryNode(); 172037efe6764568a3829fee26aba532283131d1a104Nate Begeman 172137efe6764568a3829fee26aba532283131d1a104Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 172237efe6764568a3829fee26aba532283131d1a104Nate Begeman default: assert(0 && "Indirect target must be legal type (pointer)!"); 172337efe6764568a3829fee26aba532283131d1a104Nate Begeman case Legal: 172437efe6764568a3829fee26aba532283131d1a104Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 172537efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 172637efe6764568a3829fee26aba532283131d1a104Nate Begeman } 172737efe6764568a3829fee26aba532283131d1a104Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 172837efe6764568a3829fee26aba532283131d1a104Nate Begeman break; 17293d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case ISD::BR_JT: 17303d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17313d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // Ensure that libcalls are emitted before a branch. 17323d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 17333d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = LegalizeOp(Tmp1); 17343d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 17353d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 17363d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. 17373d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 17383d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 17393d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { 17403d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng default: assert(0 && "This action is not supported yet!"); 17413d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Legal: break; 17423d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Custom: 17433d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 17443d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng if (Tmp1.Val) Result = Tmp1; 17453d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 17463d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng case TargetLowering::Expand: { 17473d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Chain = Result.getOperand(0); 17483d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Table = Result.getOperand(1); 17493d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Index = Result.getOperand(2); 17503d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng 17513d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng MVT::ValueType PTy = TLI.getPointerTy(); 1752acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey MachineFunction &MF = DAG.getMachineFunction(); 1753acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); 17543d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); 17553d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng SDOperand Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); 1756acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1757acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey SDOperand LD; 1758acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey switch (EntrySize) { 1759acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey default: assert(0 && "Size of jump table not supported yet."); break; 176069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, 17613069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getJumpTable(), 0); break; 176269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, 17633069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getJumpTable(), 0); break; 1764acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey } 1765acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey 1766cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = LD; 1767acd80ac7bb19f8bdfa55336d567c9ecbe695c8b8Jim Laskey if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { 17683d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // For PIC, the sequence is: 17693d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng // BRIND(load(Jumptable + index) + RelocBase) 1770cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng // RelocBase can be JumpTable, GOT or some sort of global base. 1771cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng if (PTy != MVT::i32) 1772cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::SIGN_EXTEND, PTy, Addr); 1773cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Addr = DAG.getNode(ISD::ADD, PTy, Addr, 1774cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng TLI.getPICJumpTableRelocBase(Table, DAG)); 17753d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 1776cc41586b9d79532172b37e1f44a9077da4b73fc9Evan Cheng Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); 17773d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 17783d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng } 17793d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng break; 1780c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner case ISD::BRCOND: 1781c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 17826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 17836831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 17846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 17856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 17866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 178747e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 178847e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 178947e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 179047e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. 179147e9223e06390897c3834f8c527001df392570ffChris Lattner break; 17922e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman case Promote: { 179347e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. 1794f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner 1795f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // The top bits of the promoted condition are not necessarily zero, ensure 1796f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner // that the value is properly zero extended. 17972e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned BitWidth = Tmp2.getValueSizeInBits(); 1798ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp2, 17992e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(BitWidth, BitWidth-1))) 1800f9908172e980aab15a36bd110ccdbc5f7afa44f6Chris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); 180147e9223e06390897c3834f8c527001df392570ffChris Lattner break; 180247e9223e06390897c3834f8c527001df392570ffChris Lattner } 18032e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman } 1804456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1805456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Basic block destination (Op#2) is always legal. 1806c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 18077cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman 18087cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { 18097cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman default: assert(0 && "This action is not supported yet!"); 1810456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1811456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1812456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 1813456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 1814456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 18157cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case TargetLowering::Expand: 18167cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Expand brcond's setcc into its constituent parts and create a BR_CC 18177cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman // Node. 18187cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman if (Tmp2.getOpcode() == ISD::SETCC) { 18197cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), 18207cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp2.getOperand(0), Tmp2.getOperand(1), 18217cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 18227cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } else { 18237cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, 18247cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getCondCode(ISD::SETNE), Tmp2, 18257cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman DAG.getConstant(0, Tmp2.getValueType()), 18267cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Node->getOperand(2)); 18277cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 18287cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 18297cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 18307cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman break; 18317cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman case ISD::BR_CC: 18327cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 18336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a branch. 18346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 18356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1836750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(2); // LHS 1837750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(3); // RHS 1838750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = Node->getOperand(1); // CC 1839181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner 1840750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); 1841722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng LastCALLSEQ_END = DAG.getEntryNode(); 1842722cb360690e5d7742b01a9f497fdb65bf8079d5Evan Cheng 1843750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 1844750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 1845750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 1846750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp3.Val == 0) { 1847750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 1848750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp4 = DAG.getCondCode(ISD::SETNE); 1849750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 1850750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 1851750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, 1852750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Node->getOperand(4)); 1853456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1854181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { 1855181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner default: assert(0 && "Unexpected action for BR_CC!"); 1856456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 1857456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 1858456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp4 = TLI.LowerOperation(Result, DAG); 1859456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp4.Val) Result = Tmp4; 1860181b7a382fbdd3d03ce373a6ffac2204e763f9c3Chris Lattner break; 18617cbd525ba85ebe440d15fa359ec940e404d14906Nate Begeman } 1862c18ae4cb6a263cf31283c0ef51ace24350f8d72bChris Lattner break; 1863f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1864466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1865466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1866466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 18672d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1868466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1869466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 1870466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType VT = Node->getValueType(0); 1871466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 1872466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1873466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1874456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 1875466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 1876466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng default: assert(0 && "This action is not supported yet!"); 1877f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 1878f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1879f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1880f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 1881f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 1882b625f2f8960de32bc973092aaee8ac62863006feDan Gohman getABITypeAlignment(MVT::getTypeForValueType(LD->getMemoryVT())); 1883f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 1884f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 1885f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 1886f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp3 = Result.getOperand(0); 1887f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp4 = Result.getOperand(1); 1888907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp3 = LegalizeOp(Tmp3); 1889907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp4 = LegalizeOp(Tmp4); 1890f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1891f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1892f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 1893466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1894466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1895466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (Tmp1.Val) { 1896466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1897466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1898466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1899466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1900466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1901466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 1902466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng assert(MVT::isVector(VT) && "Cannot promote this load!"); 1903466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 1904466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1905466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1906466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), 1907d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getSrcValueOffset(), 1908d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), LD->getAlignment()); 1909466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); 191041f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1911466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1912f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1913466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1914466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we 1915466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1916466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp3); 1917466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp4); 1918466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp4 : Tmp3; 1919466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 1920b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType SrcVT = LD->getMemoryVT(); 1921f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned SrcWidth = MVT::getSizeInBits(SrcVT); 1922f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands int SVOffset = LD->getSrcValueOffset(); 1923f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned Alignment = LD->getAlignment(); 1924f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands bool isVolatile = LD->isVolatile(); 1925f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1926f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (SrcWidth != MVT::getStoreSizeInBits(SrcVT) && 1927f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Some targets pretend to have an i1 loading operation, and actually 1928f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // load an i8. This trick is correct for ZEXTLOAD because the top 7 1929f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bits are guaranteed to be zero; it helps the optimizers understand 1930f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // that these bits are zero. It is also useful for EXTLOAD, since it 1931f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // tells the optimizers that those bits are undefined. It would be 1932f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // nice to have an effective generic way of getting these benefits... 1933f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Until such a way is found, don't insist on promoting i1 here. 1934f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands (SrcVT != MVT::i1 || 1935f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands TLI.getLoadXAction(ExtType, MVT::i1) == TargetLowering::Promote)) { 1936f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Promote to a byte-sized load if not loading an integral number of 1937f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bytes. For example, promote EXTLOAD:i20 -> EXTLOAD:i24. 1938f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned NewWidth = MVT::getStoreSizeInBits(SrcVT); 1939f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MVT::ValueType NVT = MVT::getIntegerType(NewWidth); 1940f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Ch; 1941f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1942f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // The extra bits are guaranteed to be zero, since we stored them that 1943f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // way. A zext load from NVT thus automatically gives zext from SrcVT. 1944f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1945f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ISD::LoadExtType NewExtType = 1946f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtType == ISD::ZEXTLOAD ? ISD::ZEXTLOAD : ISD::EXTLOAD; 1947f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1948f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getExtLoad(NewExtType, Node->getValueType(0), 1949f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), SVOffset, 1950f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands NVT, isVolatile, Alignment); 1951f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1952f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = Result.getValue(1); // The chain. 1953f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1954f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 1955f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Having the top bits zero doesn't help when sign extending. 1956f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 1957f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 1958f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else if (ExtType == ISD::ZEXTLOAD || NVT == Result.getValueType()) 1959f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // All the top bits are guaranteed to be zero - inform the optimizers. 1960f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::AssertZext, Result.getValueType(), Result, 1961f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getValueType(SrcVT)); 1962f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1963f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 1964f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 1965f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else if (SrcWidth & (SrcWidth - 1)) { 1966f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If not loading a power-of-2 number of bits, expand as two loads. 1967f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(MVT::isExtendedVT(SrcVT) && !MVT::isVector(SrcVT) && 1968f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands "Unsupported extload!"); 1969f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned RoundWidth = 1 << Log2_32(SrcWidth); 1970f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(RoundWidth < SrcWidth); 1971f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned ExtraWidth = SrcWidth - RoundWidth; 1972f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(ExtraWidth < RoundWidth); 1973f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 1974f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands "Load size not an integral number of bytes!"); 1975f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MVT::ValueType RoundVT = MVT::getIntegerType(RoundWidth); 1976f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MVT::ValueType ExtraVT = MVT::getIntegerType(ExtraWidth); 1977f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Lo, Hi, Ch; 1978f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned IncrementSize; 1979f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1980f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (TLI.isLittleEndian()) { 1981f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> ZEXTLOAD:i16 | (shl EXTLOAD@+2:i8, 16) 1982f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the bottom RoundWidth bits. 1983f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, 1984f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 1985f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Alignment); 1986f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1987f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 1988f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 1989f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 1990f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 1991f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 1992f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 1993f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtraVT, isVolatile, 1994f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 1995f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1996f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Build a factor node to remember that this load is independent of the 1997f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // other one. 1998f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 1999f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 2000f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2001f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 2002f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, 2003f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 2004f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2005f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 2006f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); 2007f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 2008f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Big endian - avoid unaligned loads. 2009f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> (shl EXTLOAD:i16, 8) | ZEXTLOAD@+2:i8 2010f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the top RoundWidth bits. 2011f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, 2012f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 2013f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Alignment); 2014f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2015f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 2016f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 2017f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 2018f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 2019f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, 2020f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 2021f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtraVT, isVolatile, 2022f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 2023f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2024f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Build a factor node to remember that this load is independent of the 2025f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // other one. 2026f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 2027f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 2028f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2029f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 2030f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, 2031f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 2032f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2033f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 2034f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); 2035f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2036f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2037f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 2038f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 2039f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 2040f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands switch (TLI.getLoadXAction(ExtType, SrcVT)) { 2041f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands default: assert(0 && "This action is not supported yet!"); 2042f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Custom: 2043f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands isCustom = true; 2044f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // FALLTHROUGH 2045f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Legal: 2046f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); 2047f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getValue(0); 2048f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getValue(1); 2049f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2050f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (isCustom) { 2051f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp3 = TLI.LowerOperation(Result, DAG); 2052f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (Tmp3.Val) { 2053f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp3); 2054f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2055f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2056f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 2057f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If this is an unaligned load and the target doesn't support it, 2058f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // expand it. 2059f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (!TLI.allowsUnalignedMemoryAccesses()) { 2060f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned ABIAlignment = TLI.getTargetData()-> 2061b625f2f8960de32bc973092aaee8ac62863006feDan Gohman getABITypeAlignment(MVT::getTypeForValueType(LD->getMemoryVT())); 2062f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (LD->getAlignment() < ABIAlignment){ 2063f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.Val), DAG, 2064f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands TLI); 2065f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getOperand(0); 2066f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getOperand(1); 2067f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp1); 2068f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp2); 2069f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2070f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2071f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2072f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 2073f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Expand: 2074f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 2075f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { 2076f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), 2077f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValueOffset(), 2078f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->isVolatile(), LD->getAlignment()); 2079f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); 2080f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 2081f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Load.getValue(1)); 2082f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 2083f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 2084f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(ExtType != ISD::EXTLOAD &&"EXTLOAD should always be supported!"); 2085f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Turn the unsupported load into an EXTLOAD followed by an explicit 2086f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // zero/sign extend inreg. 2087f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), 2088f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), 2089f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValueOffset(), SrcVT, 2090f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->isVolatile(), LD->getAlignment()); 2091f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands SDOperand ValRes; 2092f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 2093f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 2094f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 2095f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else 2096f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ValRes = DAG.getZeroExtendInReg(Result, SrcVT); 2097f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 2098f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 2099466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 2100466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 21019d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 2102f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 2103466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 2104466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 2105466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 2106466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2107466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return Op.ResNo ? Tmp2 : Tmp1; 210801ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 210901ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 21105dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case ISD::EXTRACT_ELEMENT: { 21115dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman MVT::ValueType OpTy = Node->getOperand(0).getValueType(); 21125dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman switch (getTypeAction(OpTy)) { 2113c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); 21145dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Legal: 21155dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) { 21165dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 1 -> Hi 21175dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), 21185dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman DAG.getConstant(MVT::getSizeInBits(OpTy)/2, 21195dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman TLI.getShiftAmountTy())); 21205dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); 21215dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } else { 21225dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // 0 -> Lo 21235dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), 21245dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Node->getOperand(0)); 21255dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 21265dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 21275dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman case Expand: 21285dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman // Get both the low and high parts. 21295dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 21305dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 21315dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp2; // 1 -> Hi 21325dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman else 21335dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman Result = Tmp1; // 0 -> Lo 21345dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman break; 21355dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 21363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 21375dc897b0e4e5eb4513adc2f161412ce23f6bf2e0Nate Begeman } 21383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 21393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::CopyToReg: 21403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2141edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 2142c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(Node->getOperand(2).getValueType()) && 2143d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner "Register type must be legal!"); 21447310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Legalize the incoming value (must be a legal type). 2145d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner Tmp2 = LegalizeOp(Node->getOperand(2)); 2146f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner if (Node->getNumValues() == 1) { 2147c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); 21487310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } else { 2149f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); 2150c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Node->getNumOperands() == 4) { 2151f1a47c3371ecd5bb449f39736a36ebbebd4e9e14Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(3)); 2152c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, 2153c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3); 2154c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner } else { 2155c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); 21567310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 21577310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner 21587310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // Since this produces two values, make sure to remember that we legalized 21597310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner // both of them. 2160c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 21617310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 2162c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 21637310fb11f2a074069bf9ec3fc169c742ac48d32bChris Lattner } 21643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 21653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 21663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::RET: 21673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 21686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 21696831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Ensure that libcalls are emitted before a return. 21706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); 21716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Tmp1); 21726831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 2173f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 21743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getNumOperands()) { 21758e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng case 3: // ret val 217698f8aeb45fc1e54437cbb8f2a7445c609deab832Evan Cheng Tmp2 = Node->getOperand(1); 21778e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Tmp3 = Node->getOperand(2); // Signness 2178f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner switch (getTypeAction(Tmp2.getValueType())) { 21793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 21808e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); 21813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2182f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner case Expand: 21837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (!MVT::isVector(Tmp2.getValueType())) { 2184f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 2185f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner ExpandOp(Tmp2, Lo, Hi); 2186edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 2187edf2e8da256496c19390cfd46da80746373e9989Chris Lattner // Big endian systems want the hi reg first. 21880753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 2189edf2e8da256496c19390cfd46da80746373e9989Chris Lattner std::swap(Lo, Hi); 2190edf2e8da256496c19390cfd46da80746373e9989Chris Lattner 219113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 219213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 219313acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng else 219413acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); 2195f921a518912df706a8edf1f867f52e8afc6e2b55Chris Lattner Result = LegalizeOp(Result); 2196f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 2197f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDNode *InVal = Tmp2.Val; 2198e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Tmp2.ResNo; 2199e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(InIx)); 2200e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(InIx)); 2201f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner 22027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2203ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 2204f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 22057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2206ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a return of the vector type. 22077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 22088e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2209f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else if (NumElems == 1) { 2210f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // Turn this into a return of the scalar type. 22117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = ScalarizeVectorOp(Tmp2); 22127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Tmp2 = LegalizeOp(Tmp2); 22138e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2214b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 2215b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors smaller than a legal type 2216b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // should be returned in integer registers! 2217b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner 2218f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // The scalarized value type may not be legal, e.g. it might require 2219f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner // promotion or expansion. Relegalize the return. 2220f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 2221f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } else { 2222b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // FIXME: Returns of gcc generic vectors larger than a legal vector 2223b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner // type should be returned by reference! 2224f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SDOperand Lo, Hi; 2225f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner SplitVectorOp(Tmp2, Lo, Hi); 2226fea997aac5773e936754de5436029c2a4fa1e930Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); 2227f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner Result = LegalizeOp(Result); 2228f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 2229f87324e44de88da5b3d57d6aeda5bc9d30f86374Chris Lattner } 2230edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 22313e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 22328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 22338e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2234c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 22358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 22363e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 22373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case 1: // ret void 2239c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 22403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: { // ret <values> 2242f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> NewValues; 22433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Tmp1); 22448e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) 22453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(i).getValueType())) { 22463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 22474e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner NewValues.push_back(LegalizeOp(Node->getOperand(i))); 22488e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 22493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Expand: { 22513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand Lo, Hi; 22526595cb3000d7f5f8e9a76d556aa8609db91b7887Dan Gohman assert(!MVT::isExtendedVT(Node->getOperand(i).getValueType()) && 2253b49e52c7e2d828c45583f862c0f7e1a4a2649acaChris Lattner "FIXME: TODO: implement returning non-legal vector types!"); 22543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(i), Lo, Hi); 22553e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner NewValues.push_back(Lo); 22568e7d056bc5c0688501f6721994c8f4074d699c69Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 225713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) { 225813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Hi); 225913acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng NewValues.push_back(Node->getOperand(i+1)); 226013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng } 2261edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman break; 22623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 22633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Promote: 22648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Can't promote multiple return value yet!"); 22653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2266c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 2267c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (NewValues.size() == Node->getNumOperands()) 2268f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); 2269c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner else 2270f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.getNode(ISD::RET, MVT::Other, 2271f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner &NewValues[0], NewValues.size()); 22723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 22733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 22743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 227517c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng 22766862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Result.getOpcode() == ISD::RET) { 22776862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { 22786862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner default: assert(0 && "This action is not supported yet!"); 22796862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Legal: break; 22806862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner case TargetLowering::Custom: 22816862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 22826862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner if (Tmp1.Val) Result = Tmp1; 22836862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner break; 22846862dbc446f2f633f6f4905d07a3bafd96741da2Chris Lattner } 228517c428e23dbeac1f985d725905ce6be1c725491fEvan Cheng } 22863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2287f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 22888b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 22898b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 22908b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 2291d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = ST->getSrcValueOffset(); 2292d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = ST->getAlignment(); 2293d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = ST->isVolatile(); 22948b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 22958b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 2296d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 2297d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: We shouldn't do this for TargetConstantFP's. 2298d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // FIXME: move this to the DAG Combiner! Note that we can't regress due 2299d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // to phase ordering between legalized code and the dag combiner. This 2300d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // probably means that we need to integrate dag combiner and legalizer 2301d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner // together. 23029e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen // We generally can't do this one for long doubles. 23032b4c279a8e203fa8b13adf7ba3a5d4c8bef70df3Chris Lattner if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(ST->getValue())) { 23043cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (CFP->getValueType(0) == MVT::f32 && 23053cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner getTypeAction(MVT::i32) == Legal) { 23069d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen Tmp3 = DAG.getConstant((uint32_t)CFP->getValueAPF(). 23079d5f45607793052bf5b4436d1b43013fab9999acDale Johannesen convertToAPInt().getZExtValue(), 23083f6eb7419de437436265831fce92f62498556e08Dale Johannesen MVT::i32); 23099e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 23109e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen SVOffset, isVolatile, Alignment); 23119e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen break; 23129e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen } else if (CFP->getValueType(0) == MVT::f64) { 23133cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // If this target supports 64-bit registers, do a single 64-bit store. 23143cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner if (getTypeAction(MVT::i64) == Legal) { 23153cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp3 = DAG.getConstant(CFP->getValueAPF().convertToAPInt(). 23163cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner getZExtValue(), MVT::i64); 23173cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 23183cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 23193cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 23203cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner } else if (getTypeAction(MVT::i32) == Legal) { 23213cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // Otherwise, if the target supports 32-bit registers, use 2 32-bit 23223cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // stores. If the target supports neither 32- nor 64-bits, this 23233cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner // xform is certainly not worth it. 23243cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner uint64_t IntVal =CFP->getValueAPF().convertToAPInt().getZExtValue(); 23253cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SDOperand Lo = DAG.getConstant(uint32_t(IntVal), MVT::i32); 23263cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SDOperand Hi = DAG.getConstant(uint32_t(IntVal >>32), MVT::i32); 23270753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) std::swap(Lo, Hi); 23283cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 23293cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 23303cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner SVOffset, isVolatile, Alignment); 23313cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 23320bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(4)); 23333cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset+4, 2334dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands isVolatile, MinAlign(Alignment, 4U)); 23353cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner 23363cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 23373cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner break; 23383cb9351e8a3691ee8cad6960601c6e3d4b293352Chris Lattner } 2339d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2340d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 2341d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner 2342b625f2f8960de32bc973092aaee8ac62863006feDan Gohman switch (getTypeAction(ST->getMemoryVT())) { 23438b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Legal: { 23448b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 23452efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 23468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng ST->getOffset()); 23478b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 23488b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType VT = Tmp3.getValueType(); 23498b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 23508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng default: assert(0 && "This action is not supported yet!"); 2351f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 2352f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 2353f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 2354f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (!TLI.allowsUnalignedMemoryAccesses()) { 2355f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio unsigned ABIAlignment = TLI.getTargetData()-> 2356b625f2f8960de32bc973092aaee8ac62863006feDan Gohman getABITypeAlignment(MVT::getTypeForValueType(ST->getMemoryVT())); 2357f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 2358f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 2359f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio TLI); 2360f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 2361f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 23628b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 23638b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 23648b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (Tmp1.Val) Result = Tmp1; 23658b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 23668b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 23678b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(MVT::isVector(VT) && "Unknown legal promote case!"); 23688b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = DAG.getNode(ISD::BIT_CONVERT, 23698b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 23708b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, 2371d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman ST->getSrcValue(), SVOffset, isVolatile, 2372d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 23738b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 23748b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 23752efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 2376f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 23778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Promote: 23788b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Truncate the value and store the result. 23798b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = PromoteOp(ST->getValue()); 23808b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2381b625f2f8960de32bc973092aaee8ac62863006feDan Gohman SVOffset, ST->getMemoryVT(), 2382d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 23838b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 238403c8546ec57523970874917854a2fb77b1ff598eChris Lattner 23858b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case Expand: 23868b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng unsigned IncrementSize = 0; 23878b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Lo, Hi; 2388c7029805ef35ce9805931067b841e6af11db382eChris Lattner 23898b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // If this is a vector type, then we have to calculate the increment as 23908b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // the product of the element size in bytes, and the number of elements 23918b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // in the high half of the vector. 23927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (MVT::isVector(ST->getValue().getValueType())) { 23938b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDNode *InVal = ST->getValue().Val; 2394e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = ST->getValue().ResNo; 23950bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType InVT = InVal->getValueType(InIx); 23960bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner unsigned NumElems = MVT::getVectorNumElements(InVT); 23970bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType EVT = MVT::getVectorElementType(InVT); 23988b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 23997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 2400ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // type. If so, convert to the vector type. 24018b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 24027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 2403ac9dcb94dde5f166ee29372385c0e3b695227ab4Reid Spencer // Turn this into a normal store of the vector type. 240421be3849aef47e6d8c26f31b11def57d59167863Dan Gohman Tmp3 = LegalizeOp(ST->getValue()); 24058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2406d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24078b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 24088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else if (NumElems == 1) { 24108b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // Turn this into a normal store of the scalar type. 241121be3849aef47e6d8c26f31b11def57d59167863Dan Gohman Tmp3 = ScalarizeVectorOp(ST->getValue()); 24128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2413d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24148b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // The scalarized value type may not be legal, e.g. it might require 24158b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng // promotion or expansion. Relegalize the scalar store. 24168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = LegalizeOp(Result); 24178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24188b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 241921be3849aef47e6d8c26f31b11def57d59167863Dan Gohman SplitVectorOp(ST->getValue(), Lo, Hi); 24205db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman IncrementSize = MVT::getVectorNumElements(Lo.Val->getValueType(0)) * 24215db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman MVT::getSizeInBits(EVT)/8; 24228b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 2423c7029805ef35ce9805931067b841e6af11db382eChris Lattner } else { 242421be3849aef47e6d8c26f31b11def57d59167863Dan Gohman ExpandOp(ST->getValue(), Lo, Hi); 24257b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng IncrementSize = Hi.Val ? MVT::getSizeInBits(Hi.getValueType())/8 : 0; 24268b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 24270753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 24288b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng std::swap(Lo, Hi); 2429c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 2430c7029805ef35ce9805931067b841e6af11db382eChris Lattner 24318b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), 2432d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24337b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 24347b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (Hi.Val == NULL) { 24357b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // Must be int <-> float one-to-one expansion. 24367b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng Result = Lo; 24377b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 24387b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 24397b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 24408b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 24410bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 24428b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng assert(isTypeLegal(Tmp2.getValueType()) && 24438b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng "Pointers must be legal!"); 2444d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset += IncrementSize; 2445dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 24468b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 2447d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 24488b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 24498b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 24508b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 24518b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 2452ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner switch (getTypeAction(ST->getValue().getValueType())) { 2453ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Legal: 2454ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner Tmp3 = LegalizeOp(ST->getValue()); 2455ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner break; 2456ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Promote: 2457ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // We can promote the value, the truncstore will still take care of it. 2458ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner Tmp3 = PromoteOp(ST->getValue()); 2459ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner break; 2460ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner case Expand: 2461ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // Just store the low part. This may become a non-trunc store, so make 2462ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner // sure to use getTruncStore, not UpdateNodeOperands below. 2463ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner ExpandOp(ST->getValue(), Tmp3, Tmp4); 2464ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner return DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 2465ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner SVOffset, MVT::i8, isVolatile, Alignment); 2466ddf89566a93081cb230bb9406a72ab2d3eada4a7Chris Lattner } 24677e857201f387d004571e6058e2ea709163500f38Duncan Sands 2468b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType StVT = ST->getMemoryVT(); 24697e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned StWidth = MVT::getSizeInBits(StVT); 24707e857201f387d004571e6058e2ea709163500f38Duncan Sands 24717e857201f387d004571e6058e2ea709163500f38Duncan Sands if (StWidth != MVT::getStoreSizeInBits(StVT)) { 24727e857201f387d004571e6058e2ea709163500f38Duncan Sands // Promote to a byte-sized store with upper bits zero if not 24737e857201f387d004571e6058e2ea709163500f38Duncan Sands // storing an integral number of bytes. For example, promote 24747e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i1 X -> TRUNCSTORE:i8 (and X, 1) 24757e857201f387d004571e6058e2ea709163500f38Duncan Sands MVT::ValueType NVT = MVT::getIntegerType(MVT::getStoreSizeInBits(StVT)); 24767e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp3 = DAG.getZeroExtendInReg(Tmp3, StVT); 24778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 24787e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset, NVT, isVolatile, Alignment); 24797e857201f387d004571e6058e2ea709163500f38Duncan Sands } else if (StWidth & (StWidth - 1)) { 24807e857201f387d004571e6058e2ea709163500f38Duncan Sands // If not storing a power-of-2 number of bits, expand as two stores. 24817e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(MVT::isExtendedVT(StVT) && !MVT::isVector(StVT) && 24827e857201f387d004571e6058e2ea709163500f38Duncan Sands "Unsupported truncstore!"); 24837e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned RoundWidth = 1 << Log2_32(StWidth); 24847e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(RoundWidth < StWidth); 24857e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned ExtraWidth = StWidth - RoundWidth; 24867e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(ExtraWidth < RoundWidth); 24877e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 24887e857201f387d004571e6058e2ea709163500f38Duncan Sands "Store size not an integral number of bytes!"); 24897e857201f387d004571e6058e2ea709163500f38Duncan Sands MVT::ValueType RoundVT = MVT::getIntegerType(RoundWidth); 24907e857201f387d004571e6058e2ea709163500f38Duncan Sands MVT::ValueType ExtraVT = MVT::getIntegerType(ExtraWidth); 24917e857201f387d004571e6058e2ea709163500f38Duncan Sands SDOperand Lo, Hi; 24927e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned IncrementSize; 24937e857201f387d004571e6058e2ea709163500f38Duncan Sands 24947e857201f387d004571e6058e2ea709163500f38Duncan Sands if (TLI.isLittleEndian()) { 24957e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 X, TRUNCSTORE@+2:i8 (srl X, 16) 24967e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the bottom RoundWidth bits. 24977e857201f387d004571e6058e2ea709163500f38Duncan Sands Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 24987e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset, RoundVT, 24997e857201f387d004571e6058e2ea709163500f38Duncan Sands isVolatile, Alignment); 25007e857201f387d004571e6058e2ea709163500f38Duncan Sands 25017e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 25027e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 25037e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 25047e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 25057e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, 25067e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 25077e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), 25087e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 25097e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 25107e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 25117e857201f387d004571e6058e2ea709163500f38Duncan Sands // Big endian - avoid unaligned stores. 25127e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 (srl X, 8), TRUNCSTORE@+2:i8 X 25137e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the top RoundWidth bits. 25147e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, 25157e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 25167e857201f387d004571e6058e2ea709163500f38Duncan Sands Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset, 25177e857201f387d004571e6058e2ea709163500f38Duncan Sands RoundVT, isVolatile, Alignment); 25187e857201f387d004571e6058e2ea709163500f38Duncan Sands 25197e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 25207e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 25217e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, 25227e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 25237e857201f387d004571e6058e2ea709163500f38Duncan Sands Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), 25247e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 25257e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 25267e857201f387d004571e6058e2ea709163500f38Duncan Sands } 2527c7029805ef35ce9805931067b841e6af11db382eChris Lattner 25287e857201f387d004571e6058e2ea709163500f38Duncan Sands // The order of the stores doesn't matter. 25297e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); 25307e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 25317e857201f387d004571e6058e2ea709163500f38Duncan Sands if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 25327e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 != ST->getBasePtr()) 25337e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, 25347e857201f387d004571e6058e2ea709163500f38Duncan Sands ST->getOffset()); 25357e857201f387d004571e6058e2ea709163500f38Duncan Sands 25367e857201f387d004571e6058e2ea709163500f38Duncan Sands switch (TLI.getTruncStoreAction(ST->getValue().getValueType(), StVT)) { 25377e857201f387d004571e6058e2ea709163500f38Duncan Sands default: assert(0 && "This action is not supported yet!"); 25387e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Legal: 25397e857201f387d004571e6058e2ea709163500f38Duncan Sands // If this is an unaligned store and the target doesn't support it, 25407e857201f387d004571e6058e2ea709163500f38Duncan Sands // expand it. 25417e857201f387d004571e6058e2ea709163500f38Duncan Sands if (!TLI.allowsUnalignedMemoryAccesses()) { 25427e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned ABIAlignment = TLI.getTargetData()-> 2543b625f2f8960de32bc973092aaee8ac62863006feDan Gohman getABITypeAlignment(MVT::getTypeForValueType(ST->getMemoryVT())); 25447e857201f387d004571e6058e2ea709163500f38Duncan Sands if (ST->getAlignment() < ABIAlignment) 25457e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.Val), DAG, 25467e857201f387d004571e6058e2ea709163500f38Duncan Sands TLI); 25477e857201f387d004571e6058e2ea709163500f38Duncan Sands } 25487e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 25497e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Custom: 25507e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = TLI.LowerOperation(Result, DAG); 25517e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 25527e857201f387d004571e6058e2ea709163500f38Duncan Sands case Expand: 25537e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i16 i32 -> STORE i16 25547e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(isTypeLegal(StVT) && "Do not know how to expand this store!"); 25557e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp3 = DAG.getNode(ISD::TRUNCATE, StVT, Tmp3); 25567e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), SVOffset, 25577e857201f387d004571e6058e2ea709163500f38Duncan Sands isVolatile, Alignment); 25587e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 2559f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 25608b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 25613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 25623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2563f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 256495762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth case ISD::PCMARKER: 256595762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2566c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 256795762124a1d781cc0f8cbc4c22e9c5c1358d7ea0Andrew Lenharth break; 2568140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKSAVE: 2569140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2570c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2571c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = Result.getValue(0); 2572c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Result.getValue(1); 2573456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2574140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { 2575140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2576456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2577456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2578c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 2579c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Tmp3.Val) { 2580c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp3); 2581c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp3.getValue(1)); 2582140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2583456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2584140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 25854f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyFromReg if the target set 25864f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 25874f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 2588c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, 25894f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Node->getValueType(0)); 2590c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Tmp1.getValue(1); 25914f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 2592c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 2593c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = Node->getOperand(0); 25944f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2595456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2596140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2597456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2598456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Since stacksave produce two values, make sure to remember that we 2599456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // legalized both of them. 2600c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 2601c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2602c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Op.ResNo ? Tmp2 : Tmp1; 2603456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2604140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case ISD::STACKRESTORE: 2605140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 2606140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 2607c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 2608140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 2609140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { 2610140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner default: assert(0 && "This action is not supported yet!"); 2611456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2612456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2613456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2614456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2615140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2616140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner case TargetLowering::Expand: 26174f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // Expand to CopyToReg if the target set 26184f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner // StackPointerRegisterToSaveRestore. 26194f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 26204f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); 26214f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } else { 26224f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner Result = Tmp1; 26234f0d8e4018d50c5796660a4fa167763f46259646Chris Lattner } 2624140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2625140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner } 2626140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner break; 2627140d53c99c3a70b9d3858a3c87f8ecb098994748Chris Lattner 262851b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth case ISD::READCYCLECOUNTER: 262951b8d54922350b7e1c2cd5a5183ef2c5f5d1b1d5Andrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain 2630c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 2631f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, 2632f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Node->getValueType(0))) { 2633f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng default: assert(0 && "This action is not supported yet!"); 26346a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng case TargetLowering::Legal: 26356a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = Result.getValue(0); 26366a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = Result.getValue(1); 26376a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng break; 2638f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng case TargetLowering::Custom: 2639f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng Result = TLI.LowerOperation(Result, DAG); 26406a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp1 = LegalizeOp(Result.getValue(0)); 26416a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng Tmp2 = LegalizeOp(Result.getValue(1)); 2642f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng break; 2643f0b3ba6752a49a8868d423ddc2704a52b7101571Evan Cheng } 264449c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth 264549c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // Since rdcc produce two values, make sure to remember that we legalized 264649c709f891a3e49db58b56ca94eafa98cbb12c4dAndrew Lenharth // both of them. 26476a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 0), Tmp1); 26486a16c5ab2d7786583d3c9a79646dc85fbda6cd41Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), Tmp2); 2649c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner return Result; 2650f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 26512ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner case ISD::SELECT: 265247e9223e06390897c3834f8c527001df392570ffChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 265347e9223e06390897c3834f8c527001df392570ffChris Lattner case Expand: assert(0 && "It's impossible to expand bools"); 265447e9223e06390897c3834f8c527001df392570ffChris Lattner case Legal: 265547e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. 265647e9223e06390897c3834f8c527001df392570ffChris Lattner break; 26572e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman case Promote: { 265847e9223e06390897c3834f8c527001df392570ffChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. 2659b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner // Make sure the condition is either zero or one. 26602e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned BitWidth = Tmp1.getValueSizeInBits(); 2661ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman if (!DAG.MaskedValueIsZero(Tmp1, 26622e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(BitWidth, BitWidth-1))) 2663b6c806045bbd4a650f90f613a96cee01a1584412Chris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); 266447e9223e06390897c3834f8c527001df392570ffChris Lattner break; 266547e9223e06390897c3834f8c527001df392570ffChris Lattner } 26662e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman } 26673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal 26682ee743ff9be43c350075a2fa15d11a79bff36775Chris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal 266955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 2670c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2671456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 2672b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { 267355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action is not supported yet!"); 2674456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2675456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: { 2676456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2677456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2678456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 2679456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 26809373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case TargetLowering::Expand: 26819373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman if (Tmp1.getOpcode() == ISD::SETCC) { 26829373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), 26839373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, 26849373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 26859373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } else { 26869373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getSelectCC(Tmp1, 26879373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman DAG.getConstant(0, Tmp1.getValueType()), 26889373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2, Tmp3, ISD::SETNE); 26899373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 269055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 269155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Promote: { 269255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner MVT::ValueType NVT = 269355ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); 269455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner unsigned ExtOp, TruncOp; 269541f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng if (MVT::isVector(Tmp2.getValueType())) { 269641f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng ExtOp = ISD::BIT_CONVERT; 269741f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng TruncOp = ISD::BIT_CONVERT; 269841f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng } else if (MVT::isInteger(Tmp2.getValueType())) { 2699456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::ANY_EXTEND; 2700456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::TRUNCATE; 270155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } else { 2702456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner ExtOp = ISD::FP_EXTEND; 2703456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner TruncOp = ISD::FP_ROUND; 270455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 270555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Promote each of the values to the new type. 270655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); 270755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); 270855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner // Perform the larger operation, then round down. 270955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); 27100bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TruncOp != ISD::FP_ROUND) 27110bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); 27120bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner else 27130bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(TruncOp, Node->getValueType(0), Result, 27140bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(0)); 271555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 271655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 271755ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 27183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2719750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SELECT_CC: { 2720750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); // LHS 2721750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); // RHS 27229373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // True 27239373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp4 = LegalizeOp(Node->getOperand(3)); // False 2724750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand CC = Node->getOperand(4); 27259373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman 2726750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, CC); 2727750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2728750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, 2729750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the LHS is a legal SETCC itself. In this case, we need to compare 2730750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the result against zero to select between true and false values. 2731750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2732750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 2733750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CC = DAG.getCondCode(ISD::SETNE); 2734750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 2735750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); 2736750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2737750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Everything is legal, see if we should expand this op or something. 2738750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { 2739750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "This action is not supported yet!"); 2740750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Legal: break; 2741750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case TargetLowering::Custom: 2742750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = TLI.LowerOperation(Result, DAG); 2743750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp1.Val) Result = Tmp1; 27449373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 27459373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 27469373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 2747750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 27483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SETCC: 2749750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = Node->getOperand(0); 2750750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = Node->getOperand(1); 2751750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp3 = Node->getOperand(2); 2752750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); 2753750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 2754750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If we had to Expand the SetCC operands into a SELECT node, then it may 2755750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // not always be possible to return a true LHS & RHS. In this case, just 2756750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // return the value we legalized, returned in the LHS 2757750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (Tmp2.Val == 0) { 2758750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Result = Tmp1; 27593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 27603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 2761b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman 276273e142f2b6a3b5223de2d557d646f319ca8168cfChris Lattner switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { 2763456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Cannot handle this action for SETCC yet!"); 2764456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2765456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2766456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH. 2767456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 27682b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2769456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 27702b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp4 = TLI.LowerOperation(Result, DAG); 27712b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (Tmp4.Val) Result = Tmp4; 2772456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 2773b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2774ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth case TargetLowering::Promote: { 2775ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // First step, figure out the appropriate operation to use. 2776ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Allow SETCC to not be supported for all legal data types 2777ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Mostly this targets FP 2778ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth MVT::ValueType NewInTy = Node->getOperand(0).getValueType(); 277900755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner MVT::ValueType OldVT = NewInTy; OldVT = OldVT; 2780ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2781ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // Scan for the appropriate larger type to use. 2782ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth while (1) { 2783ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth NewInTy = (MVT::ValueType)(NewInTy+1); 2784ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2785ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isInteger(NewInTy) == MVT::isInteger(OldVT) && 2786ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the integer world"); 2787ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(MVT::isFloatingPoint(NewInTy) == MVT::isFloatingPoint(OldVT) && 2788ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth "Fell off of the edge of the floating point world"); 2789ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth 2790ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth // If the target supports SETCC of this type, use it. 27911ccf26a6392034a11827aeaa0d58d025ecb2b85aChris Lattner if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) 2792ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth break; 2793ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2794ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth if (MVT::isInteger(NewInTy)) 2795ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth assert(0 && "Cannot promote Legal Integer SETCC yet"); 2796ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth else { 2797ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); 2798ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); 2799ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2800c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = LegalizeOp(Tmp1); 2801c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp2 = LegalizeOp(Tmp2); 28022b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 2803433f8acefb78f1c8a2cf79c12b101ce7c4b20202Evan Cheng Result = LegalizeOp(Result); 28045e3efbc2ca459621400211f7370d7f121d4827d9Andrew Lenharth break; 2805ae35575957a3ab446e2766aa05d03020ced27d14Andrew Lenharth } 2806b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman case TargetLowering::Expand: 2807b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // Expand a setcc node into a select_cc of the same condition, lhs, and 2808b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman // rhs that selects between const 1 (true) and const 0 (false). 2809b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman MVT::ValueType VT = Node->getValueType(0); 2810b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, 2811b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman DAG.getConstant(1, VT), DAG.getConstant(0, VT), 28122b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp3); 2813b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman break; 2814b942a3dd5f9318b2c57f137d2991440c2f0262adNate Begeman } 28153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 2816e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMSET: 2817e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMCPY: 2818e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner case ISD::MEMMOVE: { 2819deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Chain 2820e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Pointer 2821e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner 2822e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { // memset = ubyte 2823e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner switch (getTypeAction(Node->getOperand(2).getValueType())) { 2824e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Expand: assert(0 && "Cannot expand a byte!"); 2825e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2826deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = LegalizeOp(Node->getOperand(2)); 2827e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2828e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2829deb692e756cd3826e4ecc6eaec3397177c8b89ceChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); 2830e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2831e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2832e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } else { 2833edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Tmp3 = LegalizeOp(Node->getOperand(2)); // memcpy/move = pointer, 2834e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 2835272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2836272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp4; 2837272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(3).getValueType())) { 28386814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner case Expand: { 28396814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner // Length is too big, just take the lo-part of the length. 28406814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner SDOperand HiPart; 2841fa9aa2b424d0a7d9f7201f8fdcf5ccfa05db3a80Chris Lattner ExpandOp(Node->getOperand(3), Tmp4, HiPart); 28426814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner break; 28436814f1522dd7cdeb4674a9ad199f482a2e7aaea1Chris Lattner } 2844e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Legal: 2845e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = LegalizeOp(Node->getOperand(3)); 2846e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2847e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner case Promote: 2848e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp4 = PromoteOp(Node->getOperand(3)); 2849272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2850272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner } 2851272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner 2852272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner SDOperand Tmp5; 2853272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner switch (getTypeAction(Node->getOperand(4).getValueType())) { // uint 2854272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Expand: assert(0 && "Cannot expand this yet!"); 2855272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Legal: 2856272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner Tmp5 = LegalizeOp(Node->getOperand(4)); 2857272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner break; 2858272455b404eabe70ce9e033ba19ec1b6cfe603a5Chris Lattner case Promote: 2859e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner Tmp5 = PromoteOp(Node->getOperand(4)); 2860e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner break; 2861e560521f1af300a10717ca5c73d42df9ffb1b121Chris Lattner } 286255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner 28635c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola SDOperand Tmp6; 28645c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola switch (getTypeAction(Node->getOperand(5).getValueType())) { // bool 28655c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case Expand: assert(0 && "Cannot expand this yet!"); 28665c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case Legal: 28675c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola Tmp6 = LegalizeOp(Node->getOperand(5)); 28685c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola break; 28695c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case Promote: 28705c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola Tmp6 = PromoteOp(Node->getOperand(5)); 28715c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola break; 28725c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola } 28735c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola 287455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 287555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not implemented for this operation!"); 2876456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2877456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 2878456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 28795c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola case TargetLowering::Legal: { 28805c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola SDOperand Ops[] = { Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6 }; 28815c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola Result = DAG.UpdateNodeOperands(Result, Ops, 6); 2882456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 2883456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2884456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 2885456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 288655ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 28875c0d6ed325417baa5d119af9c2b6790231d8565fRafael Espindola } 288855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: { 2889e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // Otherwise, the target does not support this operation. Lower the 2890e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner // operation to an explicit libcall as appropriate. 2891e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner MVT::ValueType IntPtr = TLI.getPointerTy(); 2892a69571c7991813c93cba64e88eced6899ce93d81Owen Anderson const Type *IntPtrTy = TLI.getTargetData()->getIntPtrType(); 289347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListTy Args; 289447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 2895e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 28963bfbf4ea990930d153e58e153f319408341a94feReid Spencer const char *FnName = 0; 2897e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (Node->getOpcode() == ISD::MEMSET) { 2898d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp2; Entry.Ty = IntPtrTy; 289947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2900dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // Extend the (previously legalized) ubyte argument to be an int value 2901dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner // for the call. 2902dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner if (Tmp3.getValueType() > MVT::i32) 2903dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::TRUNCATE, MVT::i32, Tmp3); 2904dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner else 2905dca7abed918c8191de6e258ddf394cf11de240f2Chris Lattner Tmp3 = DAG.getNode(ISD::ZERO_EXTEND, MVT::i32, Tmp3); 2906d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp3; Entry.Ty = Type::Int32Ty; Entry.isSExt = true; 290747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2908d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.Node = Tmp4; Entry.Ty = IntPtrTy; Entry.isSExt = false; 290947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 2910e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner 2911e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = "memset"; 2912e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else if (Node->getOpcode() == ISD::MEMCPY || 2913e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner Node->getOpcode() == ISD::MEMMOVE) { 2914b25fe8267182662750dcb76a70a20f4b14a5568dAnton Korobeynikov Entry.Ty = IntPtrTy; 2915b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp2; Args.push_back(Entry); 2916b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp3; Args.push_back(Entry); 2917b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer Entry.Node = Tmp4; Args.push_back(Entry); 2918e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner FnName = Node->getOpcode() == ISD::MEMMOVE ? "memmove" : "memcpy"; 2919e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } else { 2920e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner assert(0 && "Unknown op!"); 2921e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 292245982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 2923e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner std::pair<SDOperand,SDOperand> CallResult = 292400fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands TLI.LowerCallTo(Tmp1, Type::VoidTy, 292500fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands false, false, false, CallingConv::C, false, 2926e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner DAG.getExternalSymbol(FnName, IntPtr), Args, DAG); 2927456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallResult.second; 292855ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 292955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner } 2930e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 2931e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner break; 2932e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner } 293352d08bd9d8a8dcc06148525c7fad6f2ebcad0a42Chris Lattner 29345b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SHL_PARTS: 29355b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRA_PARTS: 29365b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner case ISD::SRL_PARTS: { 2937f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner SmallVector<SDOperand, 8> Ops; 293884f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner bool Changed = false; 293984f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 294084f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Ops.push_back(LegalizeOp(Node->getOperand(i))); 294184f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner Changed |= Ops.back() != Node->getOperand(i); 294284f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 2943c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner if (Changed) 2944f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); 29452c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 294605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), 294705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Node->getValueType(0))) { 294805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng default: assert(0 && "This action is not supported yet!"); 2949456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 2950456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 2951456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 2952456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) { 2953456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand Tmp2, RetVal(0, 0); 295405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 2955456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = LegalizeOp(Tmp1.getValue(i)); 295605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng AddLegalizedOperand(SDOperand(Node, i), Tmp2); 295705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if (i == Op.ResNo) 295812f2274ba8c6af21e8b6c71ef872afe43a64b6d7Evan Cheng RetVal = Tmp2; 295905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 2960269f8c069105e13f3845a8dbc7796ac9a15dc882Chris Lattner assert(RetVal.Val && "Illegal result number"); 296105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng return RetVal; 296205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 296305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng break; 296405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 296505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 29662c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Since these produce multiple values, make sure to remember that we 29672c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // legalized all of them. 29682c8086f4b9916b2d02842be5e375276023225fbaChris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 29692c8086f4b9916b2d02842be5e375276023225fbaChris Lattner AddLegalizedOperand(SDOperand(Node, i), Result.getValue(i)); 29702c8086f4b9916b2d02842be5e375276023225fbaChris Lattner return Result.getValue(Op.ResNo); 297184f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner } 29722c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 29732c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Binary operators 29743e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ADD: 29753e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SUB: 29763e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::MUL: 2977c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHS: 2978c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MULHU: 29793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::UDIV: 29803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SDIV: 29813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 29823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 29833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: 298403c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SHL: 298503c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRL: 298603c0cf822e9a57109d1b4e6a2705d68852c93e1dChris Lattner case ISD::SRA: 298701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 298801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 298901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 299001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 2991826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 29923e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 2993f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth switch (getTypeAction(Node->getOperand(1).getValueType())) { 2994f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Expand: assert(0 && "Not possible"); 2995f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Legal: 2996f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 2997f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 2998f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth case Promote: 2999f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 3000f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth break; 3001f2eb1396b8fe7b5b1c4bd5f27903209cfa4d20aeAndrew Lenharth } 3002c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 3003c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3004456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3005e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3006bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner default: assert(0 && "BinOp legalize operation not supported"); 3007456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 3008456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3009456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3010456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 301157030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 3012bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner case TargetLowering::Expand: { 3013525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman MVT::ValueType VT = Op.getValueType(); 3014525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3015525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if multiply or divide can be lowered using two-result operations. 3016525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 3017525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MUL) { 3018525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We just need the low half of the multiply; try both the signed 3019525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // and unsigned forms. If the target supports both SMUL_LOHI and 3020525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // UMUL_LOHI, form a preference by checking which forms of plain 3021525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // MULH it supports. 3022525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, VT); 3023525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, VT); 3024525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, VT); 3025525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, VT); 3026525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned OpToUse = 0; 3027525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI && !HasMULHS) { 3028525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 3029525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI && !HasMULHU) { 3030525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 3031525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasSMUL_LOHI) { 3032525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::SMUL_LOHI; 3033525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } else if (HasUMUL_LOHI) { 3034525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman OpToUse = ISD::UMUL_LOHI; 3035525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3036525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (OpToUse) { 3037525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(OpToUse, VTs, Tmp1, Tmp2).Val, 0); 3038525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3039525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3040525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3041525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHS && 3042525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SMUL_LOHI, VT)) { 3043525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 3044525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3045525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3046525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::MULHU && 3047525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UMUL_LOHI, VT)) { 3048525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UMUL_LOHI, VTs, Tmp1, Tmp2).Val, 1); 3049525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3050525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3051525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SDIV && 3052525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 3053525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 0); 3054525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3055525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3056525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UDIV && 3057525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 3058525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 0); 3059525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3060525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3061525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3062826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Check to see if we have a libcall for this operator. 3063826695281344e3a4c4d44d73dd155107aafd689bDan Gohman RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 3064826695281344e3a4c4d44d73dd155107aafd689bDan Gohman bool isSigned = false; 3065826695281344e3a4c4d44d73dd155107aafd689bDan Gohman switch (Node->getOpcode()) { 3066826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::UDIV: 3067826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::SDIV: 3068826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (VT == MVT::i32) { 3069826695281344e3a4c4d44d73dd155107aafd689bDan Gohman LC = Node->getOpcode() == ISD::UDIV 307056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UDIV_I32 : RTLIB::SDIV_I32; 3071826695281344e3a4c4d44d73dd155107aafd689bDan Gohman isSigned = Node->getOpcode() == ISD::SDIV; 3072826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3073826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3074826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 3075007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::POW_F32, RTLIB::POW_F64, RTLIB::POW_F80, 3076007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POW_PPCF128); 3077826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3078826695281344e3a4c4d44d73dd155107aafd689bDan Gohman default: break; 3079826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3080826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (LC != RTLIB::UNKNOWN_LIBCALL) { 3081826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand Dummy; 3082826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 308352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng break; 308452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 308552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng 3086bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner assert(MVT::isVector(Node->getValueType(0)) && 3087bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner "Cannot expand this binary operator!"); 3088bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner // Expand the operation into a bunch of nasty scalar code. 3089826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3090bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner break; 3091bc70cf8be95f33f9aa30c8c3d0fd79e3fa636360Chris Lattner } 3092cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case TargetLowering::Promote: { 3093cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng switch (Node->getOpcode()) { 3094cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng default: assert(0 && "Do not know how to promote this BinOp!"); 3095cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::AND: 3096cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::OR: 3097cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng case ISD::XOR: { 3098cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType OVT = Node->getValueType(0); 3099cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3100cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng assert(MVT::isVector(OVT) && "Cannot promote this BinOp!"); 3101cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert each of the values to the new type. 3102cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); 3103cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); 3104cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 3105cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng // Bit convert the result back the original type. 3106cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); 3107cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng break; 3108cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3109cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3110cc9876124e7096d050e6750dd075758320f2cdceEvan Cheng } 3111e8f65f1e62ea1d4f2ca9fd0137ae2e0ce20e26e1Andrew Lenharth } 31123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 3113a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3114e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SMUL_LOHI: 3115e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UMUL_LOHI: 3116e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::SDIVREM: 3117e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman case ISD::UDIVREM: 3118e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // These nodes will only be produced by target-specific lowering, so 3119e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman // they shouldn't be here if they aren't legal. 3120a7c97a7f5b82778ca5abfc3791c6b7f96b82a5faDuncan Sands assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && 3121e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman "This must be legal!"); 3122525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3123525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3124525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3125525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3126e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman break; 3127e14ea867449cffa9a5835bc62c9c557ab0bc6618Dan Gohman 3128a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! 3129a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3130a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (getTypeAction(Node->getOperand(1).getValueType())) { 3131a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Expand: assert(0 && "Not possible"); 3132a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Legal: 3133a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. 3134a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3135a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case Promote: 3136a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. 3137a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3138a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 3139a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3140a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3141a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3142a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3143a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner default: assert(0 && "Operation not supported"); 3144a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Custom: 3145a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3146a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (Tmp1.Val) Result = Tmp1; 31478f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 3148a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case TargetLowering::Legal: break; 3149912095becac923ff614d7b07728eb345ada67765Evan Cheng case TargetLowering::Expand: { 3150636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // If this target supports fabs/fneg natively and select is cheap, 3151636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng // do this efficiently. 3152636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng if (!TLI.isSelectExpensive() && 3153636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TLI.getOperationAction(ISD::FABS, Tmp1.getValueType()) == 3154636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal && 3155912095becac923ff614d7b07728eb345ada67765Evan Cheng TLI.getOperationAction(ISD::FNEG, Tmp1.getValueType()) == 3156636c753b6ba2418ed707ef0efb31444ec70a46f2Evan Cheng TargetLowering::Legal) { 31578f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the sign bit of the RHS. 31588f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner MVT::ValueType IVT = 31598f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; 31608f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); 31618f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit = DAG.getSetCC(TLI.getSetCCResultTy(), 31628f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SignBit, DAG.getConstant(0, IVT), ISD::SETLT); 31638f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Get the absolute value of the result. 31648f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner SDOperand AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); 31658f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Select between the nabs and abs value based on the sign bit of 31668f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // the input. 31678f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, 31688f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner DAG.getNode(ISD::FNEG, AbsVal.getValueType(), 31698f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal), 31708f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner AbsVal); 31718f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner Result = LegalizeOp(Result); 31728f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner break; 31738f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner } 31748f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner 31758f4191d61978529e9e9d7ddc24dbcd528ef7dd4cChris Lattner // Otherwise, do bitwise ops! 3176912095becac923ff614d7b07728eb345ada67765Evan Cheng MVT::ValueType NVT = 3177912095becac923ff614d7b07728eb345ada67765Evan Cheng Node->getValueType(0) == MVT::f32 ? MVT::i32 : MVT::i64; 3178912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 3179912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), Result); 3180912095becac923ff614d7b07728eb345ada67765Evan Cheng Result = LegalizeOp(Result); 3181a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3182a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner } 3183912095becac923ff614d7b07728eb345ada67765Evan Cheng } 3184a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner break; 3185a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner 3186551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDC: 3187551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBC: 3188551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3189551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3190551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3191551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 3192551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 3193551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 3194551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 3195551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 3196edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 3197551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::ADDE: 3198551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman case ISD::SUBE: 3199551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); 3200551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); 3201551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); 3202551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); 3203551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // Since this produces two values, make sure to remember that we legalized 3204551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman // both of them. 3205551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result.getValue(0)); 3206551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 1), Result.getValue(1)); 3207551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman return Result; 3208551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman 3209419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case ISD::BUILD_PAIR: { 3210419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman MVT::ValueType PairTy = Node->getValueType(0); 3211419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman // TODO: handle the case where the Lo and Hi operands are not of legal type 3212419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo 3213419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi 3214419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { 3215456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3216456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3217456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot promote/custom this yet!"); 3218419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Legal: 3219419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) 3220419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); 3221419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3222419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman case TargetLowering::Expand: 3223419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); 3224419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); 3225419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, 3226419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman DAG.getConstant(MVT::getSizeInBits(PairTy)/2, 3227419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman TLI.getShiftAmountTy())); 3228456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); 3229419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3230419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 3231419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman break; 3232419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman } 3233419f8b62f73541dd783aa98c9eda6e483a487d51Nate Begeman 3234c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::UREM: 3235c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman case ISD::SREM: 323601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 3237c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 3238c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3239456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3240c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3241456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); 3242456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3243456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3244456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 324557030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth case TargetLowering::Legal: 3246c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3247456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3248456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3249456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3250456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 325157030e36e41ebd982a24632e7cea5b584b2d49fcAndrew Lenharth break; 3252525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman case TargetLowering::Expand: { 32536b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; 325447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned = DivOpc == ISD::SDIV; 3255525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman MVT::ValueType VT = Node->getValueType(0); 3256525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3257525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // See if remainder can be lowered using two-result operations. 3258525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDVTList VTs = DAG.getVTList(VT, VT); 3259525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::SREM && 3260525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::SDIVREM, VT)) { 3261525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).Val, 1); 3262525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3263525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3264525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (Node->getOpcode() == ISD::UREM && 3265525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman TLI.isOperationLegal(ISD::UDIVREM, VT)) { 3266525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Result = SDOperand(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).Val, 1); 3267525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 3268525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3269525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman 3270525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (MVT::isInteger(VT)) { 3271525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (TLI.getOperationAction(DivOpc, VT) == 327252cc1ea2a1a374b58801398460a6289723089d91Evan Cheng TargetLowering::Legal) { 327352cc1ea2a1a374b58801398460a6289723089d91Evan Cheng // X % Y -> X-X/Y*Y 32746b5578f052c2405c0d622192ccacfd47563c99a8Evan Cheng Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); 327552cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); 327652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); 327780176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } else if (MVT::isVector(VT)) { 327880176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 327952cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } else { 3280525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman assert(VT == MVT::i32 && 328152cc1ea2a1a374b58801398460a6289723089d91Evan Cheng "Cannot expand this binary operator!"); 328256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = Node->getOpcode() == ISD::UREM 328356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::UREM_I32 : RTLIB::SREM_I32; 328452cc1ea2a1a374b58801398460a6289723089d91Evan Cheng SDOperand Dummy; 328556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Dummy); 328652cc1ea2a1a374b58801398460a6289723089d91Evan Cheng } 32870d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman } else { 32880d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman assert(MVT::isFloatingPoint(VT) && 32890d97426b7b3d57cc3ff651a400b758733f2058a8Dan Gohman "remainder op must have integer or floating-point type"); 329080176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman if (MVT::isVector(VT)) { 329180176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 329280176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } else { 329380176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman // Floating point mod -> fmod libcall. 3294007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::REM_F32, RTLIB::REM_F64, 3295007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::REM_F80, RTLIB::REM_PPCF128); 329680176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman SDOperand Dummy; 329780176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 329880176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman false/*sign irrelevant*/, Dummy); 329980176319f3ea5d3d943aa540e76381e8567f5dcbDan Gohman } 3300c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 3301c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 3302c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman } 3303525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 3304c105e19864f2792c52bc6bb765d365308f38f461Nate Begeman break; 3305acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 3306acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3307acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3308acc398c195a697795bff3245943d104eb19192b9Nate Begeman 33095c62f337fe846247f5e72acb32844e24b4f18b71Chris Lattner MVT::ValueType VT = Node->getValueType(0); 3310acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { 3311acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3312456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3313456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3314456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3315acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3316c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3317c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = Result.getValue(0); 3318456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Result.getValue(1); 3319456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3320456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3321456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = TLI.LowerOperation(Result, DAG); 3322456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp2.Val) { 3323456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Tmp2); 3324456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Tmp2.getValue(1)); 3325456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3326456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3327acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3328acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: { 332969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); 333069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, V, 0); 3331acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Increment the pointer, VAList, to the next vaarg 3332acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 3333acc398c195a697795bff3245943d104eb19192b9Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 3334acc398c195a697795bff3245943d104eb19192b9Nate Begeman TLI.getPointerTy())); 3335acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Store the incremented VAList to the legalized pointer 333669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, V, 0); 3337acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Load the actual argument out of the pointer VAList 3338466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); 3339456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Result.getValue(1)); 3340acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = LegalizeOp(Result); 3341acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3342acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3343acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3344acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Since VAARG produces two values, make sure to remember that we 3345acc398c195a697795bff3245943d104eb19192b9Nate Begeman // legalized both of them. 3346acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(SDOperand(Node, 0), Result); 3347456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 3348456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner return Op.ResNo ? Tmp1 : Result; 3349acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3350acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3351acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VACOPY: 3352acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3353acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. 3354acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. 3355acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3356acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { 3357acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3358456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3359456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3360456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3361acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3362c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, 3363c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(3), Node->getOperand(4)); 3364456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3365456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3366456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3367456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3368acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3369acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3370acc398c195a697795bff3245943d104eb19192b9Nate Begeman // This defaults to loading a pointer from the input and storing it to the 3371acc398c195a697795bff3245943d104eb19192b9Nate Begeman // output, returning the chain. 337269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *VD = cast<SrcValueSDNode>(Node->getOperand(3))->getValue(); 337369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *VS = cast<SrcValueSDNode>(Node->getOperand(4))->getValue(); 337469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, VD, 0); 337569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, VS, 0); 3376acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3377acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3378acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3379acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3380acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAEND: 3381acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3382acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3383acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3384acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { 3385acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3386456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3387456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3388456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3389acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Legal: 3390c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3391456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3392456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Tmp1, DAG); 3393456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3394456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3395acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3396acc398c195a697795bff3245943d104eb19192b9Nate Begeman case TargetLowering::Expand: 3397acc398c195a697795bff3245943d104eb19192b9Nate Begeman Result = Tmp1; // Default to a no-op, return the chain 3398acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3399acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3400acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3401acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3402acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VASTART: 3403acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 3404acc398c195a697795bff3245943d104eb19192b9Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. 3405acc398c195a697795bff3245943d104eb19192b9Nate Begeman 3406c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); 3407c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner 3408acc398c195a697795bff3245943d104eb19192b9Nate Begeman switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { 3409acc398c195a697795bff3245943d104eb19192b9Nate Begeman default: assert(0 && "This action is not supported yet!"); 3410456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: break; 3411456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3412456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3413456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3414acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3415acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 3416acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 3417acc398c195a697795bff3245943d104eb19192b9Nate Begeman 341835ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTL: 341935ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman case ISD::ROTR: 342035ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS 342135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS 3422c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); 3423c9dc11457809b6641de853af2261721a97ad1f26Scott Michel switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3424c9dc11457809b6641de853af2261721a97ad1f26Scott Michel default: 3425c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "ROTL/ROTR legalize operation not supported"); 3426c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3427c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Legal: 3428c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3429c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Custom: 3430c9dc11457809b6641de853af2261721a97ad1f26Scott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3431c9dc11457809b6641de853af2261721a97ad1f26Scott Michel if (Tmp1.Val) Result = Tmp1; 3432c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3433c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Promote: 3434c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to promote ROTL/ROTR"); 3435c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3436c9dc11457809b6641de853af2261721a97ad1f26Scott Michel case TargetLowering::Expand: 3437c9dc11457809b6641de853af2261721a97ad1f26Scott Michel assert(0 && "Do not know how to expand ROTL/ROTR"); 3438c9dc11457809b6641de853af2261721a97ad1f26Scott Michel break; 3439c9dc11457809b6641de853af2261721a97ad1f26Scott Michel } 344035ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman break; 344135ef913ec21de0f4f1b39c811b4335438717a9b8Nate Begeman 3442d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 3443d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3444d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3445456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3446456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner assert(0 && "Cannot custom legalize this yet!"); 3447456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3448c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3449456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3450456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: { 3451456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType OVT = Tmp1.getValueType(); 3452456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3453b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned DiffBits = MVT::getSizeInBits(NVT) - MVT::getSizeInBits(OVT); 3454456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 3455456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3456456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 3457456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 3458456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 3459456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3460456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3461456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Expand: 3462456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBSWAP(Tmp1); 3463456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3464d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 3465d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 3466d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 3467691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3468691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3469691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3470691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = LegalizeOp(Node->getOperand(0)); // Op 3471691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3472910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel case TargetLowering::Custom: 3473691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Legal: 3474c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3475910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 3476335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel TargetLowering::Custom) { 3477335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Tmp1 = TLI.LowerOperation(Result, DAG); 3478335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel if (Tmp1.Val) { 3479335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel Result = Tmp1; 3480335f4f77882ace48bcdfb7a6019367bf9f4857cdScott Michel } 3481910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel } 3482691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3483691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Promote: { 3484691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType OVT = Tmp1.getValueType(); 3485691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth MVT::ValueType NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 3486edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 3487edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner // Zero extend the argument. 3488691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 3489691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth // Perform the larger operation, then subtract if needed. 3490691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); 3491456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3492691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTPOP: 3493691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth Result = Tmp1; 3494691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3495691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTTZ: 3496691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 34977cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 3498b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 34997cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETEQ); 350000b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 3501910b66d8d6fd8a27dcdea74431e3ea20c69b7db5Scott Michel DAG.getConstant(MVT::getSizeInBits(OVT),NVT), Tmp1); 3502691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3503691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case ISD::CTLZ: 3504456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 350500b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 3506b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 3507b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(OVT), NVT)); 3508691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3509691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3510691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3511691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3512691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth case TargetLowering::Expand: 3513456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = ExpandBitCount(Node->getOpcode(), Tmp1); 3514691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 3515691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth } 3516691ef2ba066dda14ae4ac0ad645054fbc967785aAndrew Lenharth break; 351700b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen 35182c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Unary operators 35192c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 35202c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 3521da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 3522da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 3523da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 35242c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 35252c8086f4b9916b2d02842be5e375276023225fbaChris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { 3526456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3527456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 352859ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng isCustom = true; 352959ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng // FALLTHROUGH 35302c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Legal: 3531c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 353259ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (isCustom) { 353359ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 353459ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng if (Tmp1.Val) Result = Tmp1; 353559ad781e0118021d1ca7dfbc9f8db2ed828745e0Evan Cheng } 35362c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35372c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case TargetLowering::Expand: 3538456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch (Node->getOpcode()) { 3539456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner default: assert(0 && "Unreachable!"); 3540456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case ISD::FNEG: 35412c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Expand Y = FNEG(X) -> Y = SUB -0.0, X 35422c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 3543456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); 3544f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3545f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FABS: { 35464af6e0d7836126630f579b0a34f054321187f00bChris Lattner // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 35474af6e0d7836126630f579b0a34f054321187f00bChris Lattner MVT::ValueType VT = Node->getValueType(0); 35484af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp2 = DAG.getConstantFP(0.0, VT); 35497cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, Tmp2, ISD::SETUGT); 35504af6e0d7836126630f579b0a34f054321187f00bChris Lattner Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); 35514af6e0d7836126630f579b0a34f054321187f00bChris Lattner Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); 3552f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3553f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 3554f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSQRT: 3555f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FSIN: 3556f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner case ISD::FCOS: { 3557f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner MVT::ValueType VT = Node->getValueType(0); 3558826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3559826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 3560826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(VT)) { 3561826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3562826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3563826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3564826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 356556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 3566f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner switch(Node->getOpcode()) { 356756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 3568007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, 3569007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); 357056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 357156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 3572007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, 3573007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SIN_F80, RTLIB::SIN_PPCF128); 357456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 357556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 3576007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, 3577007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::COS_F80, RTLIB::COS_PPCF128); 357856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 3579f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner default: assert(0 && "Unreachable!"); 3580f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 35812ac4fc032050ff1e0f06bd8e27126e979406effbNate Begeman SDOperand Dummy; 358256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 358356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 3584f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner break; 3585f76e7dc8d8ac1855ef59698e82c757548ef4ca65Chris Lattner } 35862c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 35872c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35882c8086f4b9916b2d02842be5e375276023225fbaChris Lattner } 35892c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 35906ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner case ISD::FPOWI: { 3591826695281344e3a4c4d44d73dd155107aafd689bDan Gohman MVT::ValueType VT = Node->getValueType(0); 3592826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3593826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // Expand unsupported unary vector operators by unrolling them. 3594826695281344e3a4c4d44d73dd155107aafd689bDan Gohman if (MVT::isVector(VT)) { 3595826695281344e3a4c4d44d73dd155107aafd689bDan Gohman Result = LegalizeOp(UnrollVectorOp(Op)); 3596826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 3597826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 3598826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 3599826695281344e3a4c4d44d73dd155107aafd689bDan Gohman // We always lower FPOWI into a libcall. No target support for it yet. 3600007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::POWI_F32, RTLIB::POWI_F64, 3601007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_F80, RTLIB::POWI_PPCF128); 36026ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner SDOperand Dummy; 360356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 360456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 36056ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner break; 36066ddf8ed6fe2d0aa5e15f7b9ad7e5049e2223bbd1Chris Lattner } 360735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 360867993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner if (!isTypeLegal(Node->getOperand(0).getValueType())) { 36091401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 36101401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 36117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (MVT::isVector(Op.getOperand(0).getValueType())) { 36127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // The input has to be a vector type, we have to either scalarize it, pack 36137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // it, or convert it based on whether the input vector type is legal. 36147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDNode *InVal = Node->getOperand(0).Val; 3615e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen int InIx = Node->getOperand(0).ResNo; 3616e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen unsigned NumElems = MVT::getVectorNumElements(InVal->getValueType(InIx)); 3617e526962fc59d38b4b0f671717df7657b8e0d8baaDale Johannesen MVT::ValueType EVT = MVT::getVectorElementType(InVal->getValueType(InIx)); 36187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 36197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if there is a simple type corresponding to this Vector 36207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // type. If so, convert to the vector type. 36217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType TVT = MVT::getVectorType(EVT, NumElems); 36227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (TLI.isTypeLegal(TVT)) { 362307a96765daedf180a7102d39fe56c499878312b7Dan Gohman // Turn this into a bit convert of the vector input. 36247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 36257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LegalizeOp(Node->getOperand(0))); 36267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 36277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (NumElems == 1) { 36287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Turn this into a bit convert of the scalar input. 36297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), 36307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 36317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 36327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 36337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // FIXME: UNIMP! Store then reload 36347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Cast from unsupported vector type not implemented yet!"); 36357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 363667993f7b974cd17e4372a6b7b9f9cad5ed174df1Chris Lattner } else { 363735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner switch (TLI.getOperationAction(ISD::BIT_CONVERT, 363835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Node->getOperand(0).getValueType())) { 363935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner default: assert(0 && "Unknown operation action!"); 364035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Expand: 36411401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 36421401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 364335481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 364435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case TargetLowering::Legal: 364535481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3646c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 364735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 364835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 364935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 365035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 3651d1f04d40a078d6ca7c876b16a178992a109af774Chris Lattner 36522c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // Conversion operators. The source and destination have different types. 3653fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::SINT_TO_FP: 3654fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::UINT_TO_FP: { 3655fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 3656fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3657fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3658d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen switch (TLI.getOperationAction(Node->getOpcode(), 3659fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getOperand(0).getValueType())) { 3660fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner default: assert(0 && "Unknown operation action!"); 3661456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3662456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3663456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3664456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3665456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3666c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3667456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3668456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3669456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3670456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3671456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3672fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Expand: 36736269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Result = ExpandLegalINT_TO_FP(isSigned, 36746269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey LegalizeOp(Node->getOperand(0)), 36756269ed125fc492d81dc5e3f48482816fc9d47f49Jim Laskey Node->getValueType(0)); 3676456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3677fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case TargetLowering::Promote: 3678fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteLegalINT_TO_FP(LegalizeOp(Node->getOperand(0)), 3679fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), 3680fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner isSigned); 3681fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 36825b5b8c27556e5dc8792e37436e4ddd7ab157192dAndrew Lenharth } 3683fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3684fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3685fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, 3686fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Node->getValueType(0), Node->getOperand(0)); 3687fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3688fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3689c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3690fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner if (isSigned) { 3691c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), 3692c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1, DAG.getValueType(Node->getOperand(0).getValueType())); 3693fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } else { 3694c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, 3695c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Node->getOperand(0).getValueType()); 3696fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3697c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3698c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); // The 'op' is not necessarily legal! 3699fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3700fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3701fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3702fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3703fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::TRUNCATE: 3704fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3705fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3706fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3707c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3708fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3709fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Expand: 3710fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 3711fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner 3712fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // Since the result is legal, we should just be able to truncate the low 3713fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner // part of the source. 3714fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); 3715fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3716fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3717fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = PromoteOp(Node->getOperand(0)); 3718fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); 3719fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3720fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3721fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3722d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3723fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_SINT: 3724fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case ISD::FP_TO_UINT: 3725fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3726fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Legal: 3727f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3728f1fa74ee0d30dfdb854f7d3f5ee67437cc82e250Chris Lattner 37291618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ 37301618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner default: assert(0 && "Unknown operation action!"); 3731456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Custom: 3732456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner isCustom = true; 3733456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // FALLTHROUGH 3734456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Legal: 3735c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3736456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (isCustom) { 3737456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = TLI.LowerOperation(Result, DAG); 3738456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Tmp1.Val) Result = Tmp1; 3739456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner } 3740456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3741456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case TargetLowering::Promote: 3742456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), 3743456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOpcode() == ISD::FP_TO_SINT); 3744456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 37451618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner case TargetLowering::Expand: 3746d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT) { 3747d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman SDOperand True, False; 3748d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType VT = Node->getOperand(0).getValueType(); 3749d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman MVT::ValueType NVT = Node->getValueType(0); 375073328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen const uint64_t zero[] = {0, 0}; 375173328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen APFloat apf = APFloat(APInt(MVT::getSizeInBits(VT), 2, zero)); 3752c7773bf90ee4398ccdeb847db6330cf4507b832bDan Gohman APInt x = APInt::getSignBit(MVT::getSizeInBits(NVT)); 3753c7773bf90ee4398ccdeb847db6330cf4507b832bDan Gohman (void)apf.convertFromAPInt(x, false, APFloat::rmNearestTiesToEven); 375473328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen Tmp2 = DAG.getConstantFP(apf, VT); 3755d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp3 = DAG.getSetCC(TLI.getSetCCResultTy(), 3756d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Node->getOperand(0), Tmp2, ISD::SETLT); 3757d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); 3758d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::FP_TO_SINT, NVT, 375901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), 3760d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2)); 3761d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman False = DAG.getNode(ISD::XOR, NVT, False, 3762c7773bf90ee4398ccdeb847db6330cf4507b832bDan Gohman DAG.getConstant(x, NVT)); 3763456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); 3764456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner break; 3765d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 3766d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman assert(0 && "Do not know how to expand FP_TO_SINT yet!"); 3767d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 3768d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman break; 37691618bebcf6f9cd19c4e05de3bfffda28c246bb12Chris Lattner } 3770fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 37716af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng case Expand: { 37726af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng MVT::ValueType VT = Op.getValueType(); 37736eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen MVT::ValueType OVT = Node->getOperand(0).getValueType(); 3774fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // Convert ppcf128 to i32 37756eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (OVT == MVT::ppcf128 && VT == MVT::i32) { 37760bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (Node->getOpcode() == ISD::FP_TO_SINT) { 37770bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, MVT::ppcf128, 37780bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(0), DAG.getValueType(MVT::f64)); 37790bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, MVT::f64, Result, 37800bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(1)); 37810bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_TO_SINT, VT, Result); 37820bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } else { 3783fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen const uint64_t TwoE31[] = {0x41e0000000000000LL, 0}; 3784fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen APFloat apf = APFloat(APInt(128, 2, TwoE31)); 3785fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Tmp2 = DAG.getConstantFP(apf, OVT); 3786fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // X>=2^31 ? (int)(X-2^31)+0x80000000 : (int)X 3787fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // FIXME: generated code sucks. 3788fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Result = DAG.getNode(ISD::SELECT_CC, VT, Node->getOperand(0), Tmp2, 3789fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::ADD, MVT::i32, 3790fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3791fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FSUB, OVT, 3792fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0), Tmp2)), 3793fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getConstant(0x80000000, MVT::i32)), 3794fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_TO_SINT, VT, 3795fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Node->getOperand(0)), 3796fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getCondCode(ISD::SETGE)); 3797fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen } 37986eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 37996eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 3800fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen // Convert f32 / f64 to i32 / i64. 380156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 38026af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng switch (Node->getOpcode()) { 380373328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen case ISD::FP_TO_SINT: { 380473328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen if (OVT == MVT::f32) 380556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 380656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 380773328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (OVT == MVT::f64) 380856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 380956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOSINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 3810161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::f80) { 381173328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen assert(VT == MVT::i64); 3812161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_F80_I64; 3813161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen } 3814161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::ppcf128) { 3815161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen assert(VT == MVT::i64); 3816161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_PPCF128_I64; 381773328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 38186af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 381973328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 382073328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen case ISD::FP_TO_UINT: { 382173328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen if (OVT == MVT::f32) 382256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 382356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F32_I32 : RTLIB::FPTOSINT_F32_I64; 382473328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (OVT == MVT::f64) 382556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = (VT == MVT::i32) 382656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng ? RTLIB::FPTOUINT_F64_I32 : RTLIB::FPTOSINT_F64_I64; 3827161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::f80) { 382873328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen LC = (VT == MVT::i32) 3829161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen ? RTLIB::FPTOUINT_F80_I32 : RTLIB::FPTOUINT_F80_I64; 3830161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen } 3831161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (OVT == MVT::ppcf128) { 3832161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen assert(VT == MVT::i64); 3833161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOUINT_PPCF128_I64; 383473328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 38356af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 383673328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 38376af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng default: assert(0 && "Unreachable!"); 38386af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 38396af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng SDOperand Dummy; 384056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Result = ExpandLibCall(TLI.getLibcallName(LC), Node, 384156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Dummy); 38426af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng break; 38436af00d588c1b353d9d7a3dd8f58927056eccd6c1Evan Cheng } 3844fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner case Promote: 3845c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3846c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); 3847c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = LegalizeOp(Result); 3848fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3849fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner } 3850fa9c801a6b42609dc2a934afb6535e3d51d61a3eChris Lattner break; 3851d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 3852f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case ISD::FP_EXTEND: { 38530bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType DstVT = Op.getValueType(); 38540bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType SrcVT = Op.getOperand(0).getValueType(); 38550bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { 38560bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // The only other way we can lower this is to turn it into a STORE, 38570bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // LOAD pair, targetting a temporary location (a stack slot). 38580bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = EmitStackConvert(Node->getOperand(0), SrcVT, DstVT); 38590bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 3860f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3861f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3862f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 3863f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Legal: 3864f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 3865f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 3866f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3867f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Promote: 3868f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3869f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Tmp1); 3870f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3871f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3872f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 38730bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 38745411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen case ISD::FP_ROUND: { 38750bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType DstVT = Op.getValueType(); 38760bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner MVT::ValueType SrcVT = Op.getOperand(0).getValueType(); 38770bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { 38780bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (SrcVT == MVT::ppcf128) { 3879713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen SDOperand Lo; 3880713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen ExpandOp(Node->getOperand(0), Lo, Result); 38810bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Round it the rest of the way (e.g. to f32) if needed. 3882713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen if (DstVT!=MVT::f64) 3883713ed3f7c0cb788f74af0697fce3c4eafda4178eDale Johannesen Result = DAG.getNode(ISD::FP_ROUND, DstVT, Result, Op.getOperand(1)); 38840bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 38855411a3937f4303f9c3fc50be92f985a4532d95e6Dale Johannesen } 38860bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // The only other way we can lower this is to turn it into a STORE, 38870bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // LOAD pair, targetting a temporary location (a stack slot). 38880bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = EmitStackConvert(Node->getOperand(0), DstVT, DstVT); 38890bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner break; 3890849f214a4e3676e41168b0c5398165c4d4fb99f8Dale Johannesen } 3891f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3892f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 3893f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Legal: 3894f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 38950bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 3896f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3897f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner case Promote: 3898f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 38990bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, Op.getValueType(), Tmp1, 39000bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(1)); 3901f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 3902f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner } 3903f2670a89a7c5e29e7f71ab63e06e75dbf482c55bChris Lattner break; 39040bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 390513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 39063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::ZERO_EXTEND: 39073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: 39083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 3909456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner case Expand: assert(0 && "Shouldn't need to expand other operators here!"); 39103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case Legal: 39113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 39120123b7dcfa9be97588926407163deb8d603487ceScott Michel if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == 39130123b7dcfa9be97588926407163deb8d603487ceScott Michel TargetLowering::Custom) { 39140123b7dcfa9be97588926407163deb8d603487ceScott Michel Tmp2 = TLI.LowerOperation(Result, DAG); 39150123b7dcfa9be97588926407163deb8d603487ceScott Michel if (Tmp2.Val) { 39160123b7dcfa9be97588926407163deb8d603487ceScott Michel Tmp1 = Tmp2; 39170123b7dcfa9be97588926407163deb8d603487ceScott Michel } 39180123b7dcfa9be97588926407163deb8d603487ceScott Michel } 3919c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 39203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 392103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Promote: 392203c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 392313c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 3924c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 3925c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); 392613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 39271713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner case ISD::ZERO_EXTEND: 39281713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 392913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 393023993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 393123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 393203c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 393303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SIGN_EXTEND: 39341713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = PromoteOp(Node->getOperand(0)); 393513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); 39361713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 393715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 393815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 39391713e73b8ac53f045150cb2a7d7ba9781dc35ef8Chris Lattner break; 394003c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 39413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 39423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 39430f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::FP_ROUND_INREG: 394423993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner case ISD::SIGN_EXTEND_INREG: { 39450f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 394615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner MVT::ValueType ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 394745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 394845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this operation is not supported, convert it to a shl/shr or load/store 394945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // pair. 395055ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { 395155ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner default: assert(0 && "This action not supported for this op yet!"); 395255ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Legal: 3953c52ad4f04ea5f51a1b4c67e585acea5c0525fc3dChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); 395455ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 395555ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner case TargetLowering::Expand: 395645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // If this is an integer extend and shifts are supported, do that. 395723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { 395845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: we could fall back on load/store here too for targets without 395945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // SAR. However, it is doubtful that any exist. 396045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner unsigned BitsDiff = MVT::getSizeInBits(Node->getValueType(0)) - 396145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner MVT::getSizeInBits(ExtraVT); 396227ff112948d059524e5f4ebe249a1da0b7c710e8Chris Lattner SDOperand ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); 396345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SHL, Node->getValueType(0), 396445b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Node->getOperand(0), ShiftCst); 396545b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result = DAG.getNode(ISD::SRA, Node->getValueType(0), 396645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner Result, ShiftCst); 396745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { 39682d84c4c7b314242346dea1a7f48563333476a4d5Jim Laskey // The only way we can lower this is to turn it into a TRUNCSTORE, 396945b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // EXTLOAD pair, targetting a temporary location (a stack slot). 397045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner 397145b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // NOTE: there is a choice here between constantly creating new stack 397245b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // slots and always reusing the same one. We currently always create 397345b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner // new ones, as reuse may inhibit scheduling. 3974a66bb39e9779ce17b7d16e311f4b73fddb2ede2fChris Lattner Result = EmitStackConvert(Node->getOperand(0), ExtraVT, 3975a66bb39e9779ce17b7d16e311f4b73fddb2ede2fChris Lattner Node->getValueType(0)); 397645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } else { 397745b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner assert(0 && "Unknown op"); 397845b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 397955ba8fba750ee0a51a9d74fa33b7242d24a4ff35Chris Lattner break; 398045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 39810f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 39823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 398336397f50343639ce9a25996f2d790c656791ab92Duncan Sands case ISD::TRAMPOLINE: { 398436397f50343639ce9a25996f2d790c656791ab92Duncan Sands SDOperand Ops[6]; 398536397f50343639ce9a25996f2d790c656791ab92Duncan Sands for (unsigned i = 0; i != 6; ++i) 398636397f50343639ce9a25996f2d790c656791ab92Duncan Sands Ops[i] = LegalizeOp(Node->getOperand(i)); 398736397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = DAG.UpdateNodeOperands(Result, Ops, 6); 398836397f50343639ce9a25996f2d790c656791ab92Duncan Sands // The only option for this node is to custom lower it. 398936397f50343639ce9a25996f2d790c656791ab92Duncan Sands Result = TLI.LowerOperation(Result, DAG); 399036397f50343639ce9a25996f2d790c656791ab92Duncan Sands assert(Result.Val && "Should always custom lower!"); 3991f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands 3992f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // Since trampoline produces two values, make sure to remember that we 3993f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands // legalized both of them. 3994f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Tmp1 = LegalizeOp(Result.getValue(1)); 3995f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands Result = LegalizeOp(Result); 3996f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 0), Result); 3997f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands AddLegalizedOperand(SDOperand(Node, 1), Tmp1); 3998f7331b3dd72409e644833ecaf62a0f6db03c97eeDuncan Sands return Op.ResNo ? Tmp1 : Result; 399936397f50343639ce9a25996f2d790c656791ab92Duncan Sands } 40001a0248690aaa9f7baaf1247e5f65a1c0c9e3783cDan Gohman case ISD::FLT_ROUNDS_: { 4001917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 4002917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 4003917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov default: assert(0 && "This action not supported for this op yet!"); 4004917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Custom: 4005917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 4006917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov if (Result.Val) break; 4007917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // Fall Thru 4008917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov case TargetLowering::Legal: 4009917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov // If this operation is not supported, lower it to constant 1 4010917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov Result = DAG.getConstant(1, VT); 4011917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov break; 4012917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 4013917c2a6ff2cfcd1263a5dd80c54336754c553aceAnton Korobeynikov } 401441bab0beac2600701af99f63e23a6b65f71468acChris Lattner case ISD::TRAP: { 401566fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov MVT::ValueType VT = Node->getValueType(0); 401666fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 401766fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov default: assert(0 && "This action not supported for this op yet!"); 401841bab0beac2600701af99f63e23a6b65f71468acChris Lattner case TargetLowering::Legal: 401941bab0beac2600701af99f63e23a6b65f71468acChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 402041bab0beac2600701af99f63e23a6b65f71468acChris Lattner Result = DAG.UpdateNodeOperands(Result, Tmp1); 402141bab0beac2600701af99f63e23a6b65f71468acChris Lattner break; 402266fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov case TargetLowering::Custom: 402366fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov Result = TLI.LowerOperation(Op, DAG); 402466fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov if (Result.Val) break; 402566fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov // Fall Thru 402641bab0beac2600701af99f63e23a6b65f71468acChris Lattner case TargetLowering::Expand: 402766fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov // If this operation is not supported, lower it to 'abort()' call 402841bab0beac2600701af99f63e23a6b65f71468acChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); 402966fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov TargetLowering::ArgListTy Args; 403066fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov std::pair<SDOperand,SDOperand> CallResult = 403100fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands TLI.LowerCallTo(Tmp1, Type::VoidTy, 403200fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands false, false, false, CallingConv::C, false, 4033034f12ea0864a9cca0a74715d6fb06a8bf1dc775Chris Lattner DAG.getExternalSymbol("abort", TLI.getPointerTy()), 4034034f12ea0864a9cca0a74715d6fb06a8bf1dc775Chris Lattner Args, DAG); 403566fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov Result = CallResult.second; 403666fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov break; 403766fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov } 403841bab0beac2600701af99f63e23a6b65f71468acChris Lattner break; 403966fac79b899904ddd82e5ee354a6d370d80230f6Anton Korobeynikov } 404045b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 4041456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 40424ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 40434ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 40444ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner 4045456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 4046456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 4047456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 40483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 404945982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 405045982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 405145982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 40523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 40533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 40543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 40558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// PromoteOp - Given an operation that produces a value in an invalid type, 40568b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// promote it to compute the value into a larger type. The produced value will 40578b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// have the correct bits for the low portion of the register, but no guarantee 40588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner/// is made about the top bits: it may be zero, sign-extended, or garbage. 405903c8546ec57523970874917854a2fb77b1ff598eChris LattnerSDOperand SelectionDAGLegalize::PromoteOp(SDOperand Op) { 406003c8546ec57523970874917854a2fb77b1ff598eChris Lattner MVT::ValueType VT = Op.getValueType(); 406171c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 406203c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(getTypeAction(VT) == Promote && 406303c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Caller should expand or legalize operands that are not promotable!"); 406403c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(NVT > VT && MVT::isInteger(NVT) == MVT::isInteger(VT) && 406503c8546ec57523970874917854a2fb77b1ff598eChris Lattner "Cannot promote to smaller type!"); 406603c8546ec57523970874917854a2fb77b1ff598eChris Lattner 406703c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Tmp1, Tmp2, Tmp3; 406803c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDOperand Result; 406903c8546ec57523970874917854a2fb77b1ff598eChris Lattner SDNode *Node = Op.Val; 407003c8546ec57523970874917854a2fb77b1ff598eChris Lattner 407140030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, SDOperand>::iterator I = PromotedNodes.find(Op); 40726fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != PromotedNodes.end()) return I->second; 407345982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner 407403c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (Node->getOpcode()) { 4075d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner case ISD::CopyFromReg: 4076d5d0f9bd20d9df07d6b4d41b7e8ed6d33b6a649dChris Lattner assert(0 && "CopyFromReg must be legal!"); 407703c8546ec57523970874917854a2fb77b1ff598eChris Lattner default: 4078e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 407939833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 4080e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 408103c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(0 && "Do not know how to promote this operator!"); 408203c8546ec57523970874917854a2fb77b1ff598eChris Lattner abort(); 4083fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 4084fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Result = DAG.getNode(ISD::UNDEF, NVT); 4085fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 408603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::Constant: 4087ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner if (VT != MVT::i1) 4088ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); 4089ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner else 4090ec176e30d655f96d75b49e620a849008bf0f63a2Chris Lattner Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); 409103c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); 409203c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 409303c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::ConstantFP: 409403c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); 409503c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); 409603c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 4097ef5cd1d3cf7d0b20987a545fcd2d0af2bfe6c422Chris Lattner 409882fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner case ISD::SETCC: 4099c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner assert(isTypeLegal(TLI.getSetCCResultTy()) && "SetCC type is not legal??"); 41007cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(),Node->getOperand(0), 41017cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner Node->getOperand(1), Node->getOperand(2)); 410282fbfb6984c1feb7d44a077ac2dc031f4a950005Chris Lattner break; 4103fdfded55888e35b76bb70231a5bb2f60877c2f6aChris Lattner 410403c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::TRUNCATE: 410503c8546ec57523970874917854a2fb77b1ff598eChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 410603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Legal: 410703c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = LegalizeOp(Node->getOperand(0)); 410803c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.getValueType() >= NVT && 410903c8546ec57523970874917854a2fb77b1ff598eChris Lattner "This truncation doesn't make sense!"); 411003c8546ec57523970874917854a2fb77b1ff598eChris Lattner if (Result.getValueType() > NVT) // Truncate to NVT instead of VT 411103c8546ec57523970874917854a2fb77b1ff598eChris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); 411203c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 4113e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner case Promote: 4114e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // The truncation is not required, because we don't guarantee anything 4115e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner // about high bits anyway. 4116e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner Result = PromoteOp(Node->getOperand(0)); 4117e76ad6de40b5e4c0399257b0438914c8c85ceaa1Chris Lattner break; 411803c8546ec57523970874917854a2fb77b1ff598eChris Lattner case Expand: 411979e46acd35df36477029e9f534ab1a366a98df56Nate Begeman ExpandOp(Node->getOperand(0), Tmp1, Tmp2); 412079e46acd35df36477029e9f534ab1a366a98df56Nate Begeman // Truncate the low part of the expanded value to the result type 4121e21c305ed85b2be4a27784ba52471f6b68fdd255Chris Lattner Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); 412203c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 412303c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 41248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SIGN_EXTEND: 41258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::ZERO_EXTEND: 412613c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner case ISD::ANY_EXTEND: 41278b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41288b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); 41298b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 41308b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Input is legal? Just do extend all the way to the larger type. 4131456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 41328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 41348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Promote the reg if it's smaller. 41358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 41368b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The high bits are not guaranteed to be anything. Insert an extend. 41378b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SIGN_EXTEND) 4138595dc5408ad809b9a9a417db275c43242e54b8dcChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 413915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 414013c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner else if (Node->getOpcode() == ISD::ZERO_EXTEND) 414123993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 414223993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 41438b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41448b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 41458b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 414635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: 41471401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 41481401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Node->getValueType(0)); 414935481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner Result = PromoteOp(Result); 415035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 415135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 41528b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_EXTEND: 41538b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); 41548b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_ROUND: 41558b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41568b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: assert(0 && "BUG: Cannot expand FP regs!"); 41578b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: assert(0 && "Unreachable with 2 FP types!"); 41588b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 41590bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner if (Node->getConstantOperandVal(1) == 0) { 41600bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Input is legal? Do an FP_ROUND_INREG. 41610bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), 41620bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getValueType(VT)); 41630bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } else { 41640bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner // Just remove the truncate, it isn't affecting the value. 41650bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, NVT, Node->getOperand(0), 41660bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Node->getOperand(1)); 41670bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner } 41688b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 41708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SINT_TO_FP: 41728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UINT_TO_FP: 41738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 41748b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 417577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 4176456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); 41778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 41798b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 41808b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = PromoteOp(Node->getOperand(0)); 41818b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (Node->getOpcode() == ISD::SINT_TO_FP) 41828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), 418315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result, 418415e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(Node->getOperand(0).getValueType())); 41858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner else 418623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Result = DAG.getZeroExtendInReg(Result, 418723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Node->getOperand(0).getValueType()); 418877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // No extra round required here. 418977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Result); 41908b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 41918b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Expand: 419277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, 419377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner Node->getOperand(0)); 419477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner // Round if we cannot tolerate excess precision. 419577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner if (NoExcessFPPrecision) 419615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 419715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 419877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner break; 41998b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 42008b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42018b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 42025e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner case ISD::SIGN_EXTEND_INREG: 42035e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = PromoteOp(Node->getOperand(0)); 42045e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, 42055e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner Node->getOperand(1)); 42065e3c5b4e13d45d631cddf42176b380f64fde918fChris Lattner break; 42078b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_SINT: 42088b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::FP_TO_UINT: 42098b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 42108b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Legal: 42110b1b9dcf22745b533562134c2f0472098fe085fdEvan Cheng case Expand: 4212456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); 42138b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case Promote: 42158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input result is prerounded, so we don't have to do anything 42168b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // special. 42178b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42188b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42198b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 4220d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // If we're promoting a UINT to a larger size, check to see if the new node 4221d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 4222d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // we can use that instead. This allows us to generate better code for 4223d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 4224d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman // legal, such as PowerPC. 4225d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman if (Node->getOpcode() == ISD::FP_TO_UINT && 4226c9c60f6429416d362c2131b14d097ce0a9ac9599Chris Lattner !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 4227b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || 4228b7f6ef12f682c7068ca7513e088177a0d1046b35Nate Begeman TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ 4229d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); 4230d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } else { 4231d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4232d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman } 42338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 42348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 42352c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FABS: 42362c8086f4b9916b2d02842be5e375276023225fbaChris Lattner case ISD::FNEG: 42372c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42382c8086f4b9916b2d02842be5e375276023225fbaChris Lattner assert(Tmp1.getValueType() == NVT); 42392c8086f4b9916b2d02842be5e375276023225fbaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 42402c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NOTE: we do not have to do any extra rounding here for 42412c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // NoExcessFPPrecision, because we know the input will have the appropriate 42422c8086f4b9916b2d02842be5e375276023225fbaChris Lattner // precision, and these operations don't modify precision at all. 42432c8086f4b9916b2d02842be5e375276023225fbaChris Lattner break; 42442c8086f4b9916b2d02842be5e375276023225fbaChris Lattner 4245da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSQRT: 4246da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FSIN: 4247da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner case ISD::FCOS: 4248da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 4249da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner assert(Tmp1.getValueType() == NVT); 4250da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4251456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (NoExcessFPPrecision) 425215e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 425315e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 4254da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner break; 4255da6ba87d234a934409e8d8d5b131b7341ab4bf97Chris Lattner 42568b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner case ISD::FPOWI: { 42578b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // Promote f32 powi to f64 powi. Note that this could insert a libcall 42588b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner // directly as well, which may be better. 42598b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42608b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner assert(Tmp1.getValueType() == NVT); 42618b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FPOWI, NVT, Tmp1, Node->getOperand(1)); 42628b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner if (NoExcessFPPrecision) 42638b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 42648b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner DAG.getValueType(VT)); 42658b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner break; 42668b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner } 42678b2d42c9494a42c8b5b9e5c2e46c8001b89e75b5Chris Lattner 4268ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_LCS: { 4269ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp2 = PromoteOp(Node->getOperand(2)); 4270ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp3 = PromoteOp(Node->getOperand(3)); 4271ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Result = DAG.getAtomic(Node->getOpcode(), Node->getOperand(0), 4272ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Node->getOperand(1), Tmp2, Tmp3, 4273ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth cast<AtomicSDNode>(Node)->getVT()); 4274ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth // Remember that we legalized the chain. 4275ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 4276ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 4277ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 4278ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_LAS: 4279ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth case ISD::ATOMIC_SWAP: { 4280ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Tmp2 = PromoteOp(Node->getOperand(2)); 4281ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Result = DAG.getAtomic(Node->getOpcode(), Node->getOperand(0), 4282ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth Node->getOperand(1), Tmp2, 4283ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth cast<AtomicSDNode>(Node)->getVT()); 4284ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth // Remember that we legalized the chain. 4285ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 4286ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth break; 4287ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth } 4288ab0b949e0e9de452f3b052b11634ab761e008b23Andrew Lenharth 428903c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::AND: 429003c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::OR: 429103c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::XOR: 42920f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::ADD: 42938b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SUB: 42940f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner case ISD::MUL: 42950f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // The input may have strange things in the top bits of the registers, but 429601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // these operations don't care. They may have weird bits going out, but 42970f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner // that too is okay if they are integer operations. 42980f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 42990f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 43000f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 43010f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 430201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 430301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FADD: 430401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FSUB: 430501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FMUL: 430601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 430701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 430801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); 430901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 431001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 431101b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Floating point operations will give excess precision that we may not be 431201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // able to tolerate. If we DO allow excess precision, just leave it, 431301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // otherwise excise it. 43148b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // FIXME: Why would we need to round FP ops more than integer ones? 43158b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) 431601b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner if (NoExcessFPPrecision) 431715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 431815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 43190f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner break; 43200f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner 43218b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SDIV: 43228b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SREM: 43238b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be sign extended. 43248b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 43258b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 43268b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isInteger(NVT)) { 432715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 432815e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 432915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 433015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 43318b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner } 43328b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 43338b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 43348b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 43358b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner if (MVT::isFloatingPoint(NVT) && NoExcessFPPrecision) 433615e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 433715e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 43388b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 433901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FDIV: 434001b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner case ISD::FREM: 4341a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner case ISD::FCOPYSIGN: 434201b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // These operators require that their input be fp extended. 4343ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(0).getValueType())) { 43440bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Expand: assert(0 && "not implemented"); 43450bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Legal: Tmp1 = LegalizeOp(Node->getOperand(0)); break; 43460bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Promote: Tmp1 = PromoteOp(Node->getOperand(0)); break; 4347ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 4348ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman switch (getTypeAction(Node->getOperand(1).getValueType())) { 43490bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Expand: assert(0 && "not implemented"); 43500bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); break; 43510bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner case Promote: Tmp2 = PromoteOp(Node->getOperand(1)); break; 4352ec57fd91af6be26a29535e7dd3dcb63beb71d898Nate Begeman } 435301b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 435401b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner 435501b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner // Perform FP_ROUND: this is probably overly pessimistic. 4356a09f848c11c9db3c2614e0275a3256310ac26653Chris Lattner if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) 435701b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, 435801b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner DAG.getValueType(VT)); 435901b3d73c20f5afb8265ae943a8ba23c2238c5eeaChris Lattner break; 43608b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 43618b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UDIV: 43628b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::UREM: 43638b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // These operators require that their input be zero extended. 43648b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 43658b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); 43668b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner assert(MVT::isInteger(NVT) && "Operators don't apply to FP!"); 436723993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 436823993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 43698b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); 43708b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43718b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner 43728b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SHL: 43738b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 4374456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); 43758b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43768b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRA: 43778b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly sign extended. 43788b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 437915e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 438015e4b01920d6a0ffbe35d3e5aa88a4b42970b6a7Chris Lattner DAG.getValueType(VT)); 4381456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); 43828b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43838b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner case ISD::SRL: 43848b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner // The input value must be properly zero extended. 43858b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner Tmp1 = PromoteOp(Node->getOperand(0)); 438623993561e24b2a6eaf0e036062522ab825c30d3fChris Lattner Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4387456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); 43888b6fa22e722e1de7522aae51d6cdd0f552d489daChris Lattner break; 43890aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 43900aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman case ISD::VAARG: 4391456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = Node->getOperand(0); // Get the chain. 4392456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp2 = Node->getOperand(1); // Get the pointer. 43930aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { 43940aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); 43950aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Result = TLI.CustomPromoteOperation(Tmp3, DAG); 43960aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } else { 439769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); 439869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SDOperand VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, V, 0); 43990aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Increment the pointer, VAList, to the next vaarg 44000aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, 44010aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman DAG.getConstant(MVT::getSizeInBits(VT)/8, 44020aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman TLI.getPointerTy())); 44030aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Store the incremented VAList to the legalized pointer 440469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, V, 0); 44050aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Load the actual argument out of the pointer VAList 4406466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); 44070aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman } 44080aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman // Remember that we legalized the chain. 4409456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 44100aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman break; 44110aed7840ec8cc85f91b4aa6e69318bba0cbd1f03Nate Begeman 4412466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case ISD::LOAD: { 4413466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 441462f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) 441562f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng ? ISD::EXTLOAD : LD->getExtensionType(); 441662f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng Result = DAG.getExtLoad(ExtType, NVT, 441762f2a3c7aa0eba3e7bc5e2d59e268c5e1f48fb46Evan Cheng LD->getChain(), LD->getBasePtr(), 441855b5708b6bbffc79cf133c31faa51d144bfc5d4aChris Lattner LD->getSrcValue(), LD->getSrcValueOffset(), 4419b625f2f8960de32bc973092aaee8ac62863006feDan Gohman LD->getMemoryVT(), 4420d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->isVolatile(), 4421d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman LD->getAlignment()); 44224c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner // Remember that we legalized the chain. 4423456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 44244c8f8f0481b26818d7810a6a585e7ecf52973e93Chris Lattner break; 4425466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 442603c8546ec57523970874917854a2fb77b1ff598eChris Lattner case ISD::SELECT: 442703c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 442803c8546ec57523970874917854a2fb77b1ff598eChris Lattner Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 4429456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), Tmp2, Tmp3); 443003c8546ec57523970874917854a2fb77b1ff598eChris Lattner break; 44319373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: 44329373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp2 = PromoteOp(Node->getOperand(2)); // True 44339373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Tmp3 = PromoteOp(Node->getOperand(3)); // False 44349373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 4435456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); 44369373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 4437d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: 4438d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = Node->getOperand(0); 4439d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); 4440d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); 4441d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Result = DAG.getNode(ISD::SRL, NVT, Tmp1, 4442b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 4443b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), 4444d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman TLI.getShiftAmountTy())); 4445d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 4446fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4447fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4448fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4449456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Zero extend the argument 4450456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 4451fecf095292991bdf9396fec474011446107f9813Andrew Lenharth // Perform the larger operation, then subtract if needed. 4452fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); 4453456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner switch(Node->getOpcode()) { 4454fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTPOP: 4455fecf095292991bdf9396fec474011446107f9813Andrew Lenharth Result = Tmp1; 4456fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4457fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTTZ: 4458456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 4459d2558e3e4af2930730e2314868afd09ba005e282Nate Begeman Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), Tmp1, 4460b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT), NVT), 4461b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman ISD::SETEQ); 446200b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, 4463b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), NVT), Tmp1); 4464fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4465fecf095292991bdf9396fec474011446107f9813Andrew Lenharth case ISD::CTLZ: 4466fecf095292991bdf9396fec474011446107f9813Andrew Lenharth //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 446700b16889ab461b7ecef1c91ade101186b7f1fce2Jeff Cohen Result = DAG.getNode(ISD::SUB, NVT, Tmp1, 4468b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(NVT) - 4469b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman MVT::getSizeInBits(VT), NVT)); 4470fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 4471fecf095292991bdf9396fec474011446107f9813Andrew Lenharth } 4472fecf095292991bdf9396fec474011446107f9813Andrew Lenharth break; 44737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 44747f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = PromoteOp(ExpandEXTRACT_SUBVECTOR(Op)); 44756595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 44764aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner case ISD::EXTRACT_VECTOR_ELT: 44774aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); 44784aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner break; 447903c8546ec57523970874917854a2fb77b1ff598eChris Lattner } 448003c8546ec57523970874917854a2fb77b1ff598eChris Lattner 448103c8546ec57523970874917854a2fb77b1ff598eChris Lattner assert(Result.Val && "Didn't set a result!"); 4482456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4483456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure the result is itself legal. 4484456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 4485456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner 4486456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Remember that we promoted this! 448703c8546ec57523970874917854a2fb77b1ff598eChris Lattner AddPromotedOperand(Op, Result); 448803c8546ec57523970874917854a2fb77b1ff598eChris Lattner return Result; 448903c8546ec57523970874917854a2fb77b1ff598eChris Lattner} 44903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 44917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into 44927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// a legal EXTRACT_VECTOR_ELT operation, scalar code, or memory traffic, 44937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// based on the vector type. The return type of this matches the element type 44947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// of the vector, which may not be legal for the target. 44957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDOperand Op) { 44961597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // We know that operand #0 is the Vec vector. If the index is a constant 44971597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // or if the invec is a supported hardware type, we can use it. Otherwise, 44981597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // lower to a store then an indexed load. 44991597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Vec = Op.getOperand(0); 45007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Idx = Op.getOperand(1); 45011597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 4502e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman MVT::ValueType TVT = Vec.getValueType(); 45037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(TVT); 45041597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 45057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, TVT)) { 45067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman default: assert(0 && "This action is not supported yet!"); 45077f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Custom: { 45087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 45097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 45107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Tmp3 = TLI.LowerOperation(Op, DAG); 45117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (Tmp3.Val) 45127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Tmp3; 45137f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 45147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 45157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Legal: 45167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (isTypeLegal(TVT)) { 45177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Vec = LegalizeOp(Vec); 45187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 4519844228a631f47bb39f71f617063831fb83c3843bChristopher Lamb return Op; 45207f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 45217f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 45227f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case TargetLowering::Expand: 45237f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 45247f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 45257f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45267f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NumElems == 1) { 45271597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // This must be an access of the only element. Return it. 45287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ScalarizeVectorOp(Vec); 45297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else if (!TLI.isTypeLegal(TVT) && isa<ConstantSDNode>(Idx)) { 453055030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman unsigned NumLoElts = 1 << Log2_32(NumElems-1); 45317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 45321597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SDOperand Lo, Hi; 45331597221eace1c53ce5f84a7018397497d11a8393Chris Lattner SplitVectorOp(Vec, Lo, Hi); 453455030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman if (CIdx->getValue() < NumLoElts) { 45351597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Lo; 45361597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 45371597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Vec = Hi; 453855030dc460ff43f382abcc977b3e45bab7d87826Nate Begeman Idx = DAG.getConstant(CIdx->getValue() - NumLoElts, 45397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx.getValueType()); 45401597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 45417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45421597221eace1c53ce5f84a7018397497d11a8393Chris Lattner // It's now an extract from the appropriate high or low part. Recurse. 45431597221eace1c53ce5f84a7018397497d11a8393Chris Lattner Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 45447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = ExpandEXTRACT_VECTOR_ELT(Op); 45451597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } else { 45467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Store the value to a temporary stack slot, then LOAD the scalar 45477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // element back out. 454885dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(Vec.getValueType()); 45497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Vec, StackPtr, NULL, 0); 45507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Add the offset to the index. 45527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned EltSize = MVT::getSizeInBits(Op.getValueType())/8; 45537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, 45547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman DAG.getConstant(EltSize, Idx.getValueType())); 455590bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 455690bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling if (MVT::getSizeInBits(Idx.getValueType()) > 455790bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling MVT::getSizeInBits(TLI.getPointerTy())) 4558f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::TRUNCATE, TLI.getPointerTy(), Idx); 455990bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling else 4560f185e67844e6229e2b0fe9080a5f66fb01fb7f5aChris Lattner Idx = DAG.getNode(ISD::ZERO_EXTEND, TLI.getPointerTy(), Idx); 456190bfc2d10520f9621309436c1c6928a59cd33616Bill Wendling 45627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); 45637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 45647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Op = DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); 45651597221eace1c53ce5f84a7018397497d11a8393Chris Lattner } 45667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Op; 45671597221eace1c53ce5f84a7018397497d11a8393Chris Lattner} 45681597221eace1c53ce5f84a7018397497d11a8393Chris Lattner 45697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// ExpandEXTRACT_SUBVECTOR - Expand a EXTRACT_SUBVECTOR operation. For now 45706595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman/// we assume the operation can be split if it is not already legal. 45717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ExpandEXTRACT_SUBVECTOR(SDOperand Op) { 45726595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // We know that operand #0 is the Vec vector. For now we assume the index 45736595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // is a constant and that the extracted result is a supported hardware type. 45746595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Vec = Op.getOperand(0); 45756595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Idx = LegalizeOp(Op.getOperand(1)); 45766595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 45777f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NumElems = MVT::getVectorNumElements(Vec.getValueType()); 45786595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 45796595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (NumElems == MVT::getVectorNumElements(Op.getValueType())) { 45806595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // This must be an access of the desired vector length. Return it. 45817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return Vec; 45826595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 45836595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 45846595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); 45856595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SDOperand Lo, Hi; 45866595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman SplitVectorOp(Vec, Lo, Hi); 45876595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman if (CIdx->getValue() < NumElems/2) { 45886595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Lo; 45896595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } else { 45906595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Vec = Hi; 45916595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Idx = DAG.getConstant(CIdx->getValue() - NumElems/2, Idx.getValueType()); 45926595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 45936595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 45946595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman // It's now an extract from the appropriate high or low part. Recurse. 45956595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Op = DAG.UpdateNodeOperands(Op, Vec, Idx); 45967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman return ExpandEXTRACT_SUBVECTOR(Op); 45974aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner} 45984aab2f4ab50d2b04dc559c7b197f1de7612c896bChris Lattner 4599750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC 4600750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// with condition CC on the current target. This usually involves legalizing 4601750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// or promoting the arguments. In the case where LHS and RHS must be expanded, 4602750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// there may be no choice but to create a new SetCC node to represent the 4603750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// legalized value of setcc lhs, rhs. In this case, the value is returned in 4604750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman/// LHS, and the SDOperand returned in RHS has a nil SDNode value. 4605750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begemanvoid SelectionDAGLegalize::LegalizeSetCCOperands(SDOperand &LHS, 4606750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &RHS, 4607750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand &CC) { 4608638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen SDOperand Tmp1, Tmp2, Tmp3, Result; 4609750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4610750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (getTypeAction(LHS.getValueType())) { 4611750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Legal: 4612750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LegalizeOp(LHS); // LHS 4613750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = LegalizeOp(RHS); // RHS 4614750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4615750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case Promote: 4616750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = PromoteOp(LHS); // LHS 4617750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = PromoteOp(RHS); // RHS 4618750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4619750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is an FP compare, the operands have already been extended. 4620750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (MVT::isInteger(LHS.getValueType())) { 4621750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType VT = LHS.getValueType(); 4622750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 4623750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4624750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Otherwise, we have to insert explicit sign or zero extends. Note 4625750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // that we could insert sign extends for ALL conditions, but zero extend 4626750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // is cheaper on many machines (an AND instead of two shifts), so prefer 4627750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // it. 4628750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman switch (cast<CondCodeSDNode>(CC)->get()) { 4629750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer comparison!"); 4630750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4631750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4632750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: 4633750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: 4634750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: 4635750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: 4636750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // ALL of these operations will work if we either sign or zero extend 4637750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // the operands (including the unsigned comparisons!). Zero extend is 4638750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // usually a simpler/cheaper operation, so prefer it. 4639750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); 4640750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); 4641750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4642750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4643750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4644750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4645750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4646750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, 4647750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4648750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, 4649750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman DAG.getValueType(VT)); 4650750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4651750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4652750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4653750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 46542b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case Expand: { 46552b49c500838666dd0186d021389d4dd70ffda240Evan Cheng MVT::ValueType VT = LHS.getValueType(); 46562b49c500838666dd0186d021389d4dd70ffda240Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 46572b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Expand into one or more soft-fp libcall(s). 465856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC1, LC2 = RTLIB::UNKNOWN_LIBCALL; 46592b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 46602b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETEQ: 46612b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOEQ: 466256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 46632b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46642b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETNE: 46652b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUNE: 466656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64; 46672b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46682b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGE: 46692b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGE: 467056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 46712b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46722b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLT: 46732b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLT: 467456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 46752b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46762b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETLE: 46772b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOLE: 467856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 46792b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46802b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETGT: 46812b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETOGT: 468256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 46832b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46842b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUO: 4685d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 4686d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng break; 46872b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETO: 46885efdecc030f1a71cdb5b49d97c6c1c45e68ff731Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64; 46892b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 46902b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: 469156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; 46922b49c500838666dd0186d021389d4dd70ffda240Evan Cheng switch (cast<CondCodeSDNode>(CC)->get()) { 46932b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETONE: 46942b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // SETONE = SETOLT | SETOGT 469556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 46962b49c500838666dd0186d021389d4dd70ffda240Evan Cheng // Fallthrough 46972b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGT: 469856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; 46992b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47002b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETUGE: 470156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; 47022b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47032b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULT: 470456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; 47052b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 47062b49c500838666dd0186d021389d4dd70ffda240Evan Cheng case ISD::SETULE: 470756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; 47082b49c500838666dd0186d021389d4dd70ffda240Evan Cheng break; 470956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SETUEQ: 471056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; 471156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 47122b49c500838666dd0186d021389d4dd70ffda240Evan Cheng default: assert(0 && "Unsupported FP setcc!"); 47132b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 47142b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 47152b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 47162b49c500838666dd0186d021389d4dd70ffda240Evan Cheng SDOperand Dummy; 471756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Tmp1 = ExpandLibCall(TLI.getLibcallName(LC1), 471847857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4719b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 47202b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getConstant(0, MVT::i32); 4721d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng CC = DAG.getCondCode(TLI.getCmpLibcallCC(LC1)); 472256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng if (LC2 != RTLIB::UNKNOWN_LIBCALL) { 47232b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), Tmp1, Tmp2, CC); 472456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LHS = ExpandLibCall(TLI.getLibcallName(LC2), 472547857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer DAG.getNode(ISD::MERGE_VALUES, VT, LHS, RHS).Val, 4726b47b25cfda5aee910e128c89d08c630722eb480bReid Spencer false /*sign irrelevant*/, Dummy); 47272b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHS, Tmp2, 4728d385fd62cb43435b3ad70d789198d34bf148e579Evan Cheng DAG.getCondCode(TLI.getCmpLibcallCC(LC2))); 47292b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 47302b49c500838666dd0186d021389d4dd70ffda240Evan Cheng Tmp2 = SDOperand(); 47312b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 47322b49c500838666dd0186d021389d4dd70ffda240Evan Cheng LHS = Tmp1; 47332b49c500838666dd0186d021389d4dd70ffda240Evan Cheng RHS = Tmp2; 47342b49c500838666dd0186d021389d4dd70ffda240Evan Cheng return; 47352b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 47362b49c500838666dd0186d021389d4dd70ffda240Evan Cheng 4737750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman SDOperand LHSLo, LHSHi, RHSLo, RHSHi; 4738750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ExpandOp(LHS, LHSLo, LHSHi); 4739638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ExpandOp(RHS, RHSLo, RHSHi); 4740638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); 4741638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4742638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen if (VT==MVT::ppcf128) { 4743638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FIXME: This generated code sucks. We want to generate 4744638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, hi1, hi2 4745638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // BNE crN, L: 4746638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // FCMP crN, lo1, lo2 4747638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen // The following can be improved, but not that much. 4748638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 4749638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, CCCode); 4750638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp3 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 4751638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETNE); 4752638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, CCCode); 4753638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); 4754638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp3); 4755638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen Tmp2 = SDOperand(); 4756638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen break; 4757638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen } 4758638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen 4759638ccd52b9fa2d1d03a1e85992c09e2bf6800fc6Dale Johannesen switch (CCCode) { 4760750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETEQ: 4761750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETNE: 4762750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSLo == RHSHi) 4763750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) 4764750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (RHSCST->isAllOnesValue()) { 4765750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Comparison to -1. 4766750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); 4767750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSLo; 4768750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4769750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4770750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4771750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); 4772750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); 4773750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); 4774750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 4775750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4776750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: 4777750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // If this is a comparison of the sign bit, just look at the top part. 4778750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // X > -1, x < 0 4779750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) 4780750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && 4781750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->getValue() == 0) || // X < 0 4782750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && 4783750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman CST->isAllOnesValue())) { // X > -1 4784750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp1 = LHSHi; 4785750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman Tmp2 = RHSHi; 4786750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman break; 4787750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4788750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4789750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // FIXME: This generated code sucks. 4790750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman ISD::CondCode LowCC; 47912e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng switch (CCCode) { 4792750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman default: assert(0 && "Unknown integer setcc!"); 4793750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLT: 4794750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULT: LowCC = ISD::SETULT; break; 4795750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGT: 4796750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGT: LowCC = ISD::SETUGT; break; 4797750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETLE: 4798750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETULE: LowCC = ISD::SETULE; break; 4799750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETGE: 4800750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman case ISD::SETUGE: LowCC = ISD::SETUGE; break; 4801750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4802750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4803750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 4804750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 4805750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 4806750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 4807750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // NOTE: on targets without efficient SELECT of bools, we can always use 4808750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 48092e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 48102e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC, 48112e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng false, DagCombineInfo); 48122e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp1.Val) 48132e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = DAG.getSetCC(TLI.getSetCCResultTy(), LHSLo, RHSLo, LowCC); 48142e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 48152e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode, false, DagCombineInfo); 48162e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Tmp2.Val) 481785dd3be7354f848231362bd70f6517c0e667f95dChris Lattner Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultTy(), LHSHi, RHSHi,CC); 48182e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng 48192e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.Val); 48202e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.Val); 48212e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if ((Tmp1C && Tmp1C->getValue() == 0) || 48222e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 0 && 48232e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 48242e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 48252e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (Tmp2C && Tmp2C->getValue() == 1 && 48262e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 48272e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 48282e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // low part is known false, returns high part. 48292e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LE / GE, if high part is known false, ignore the low part. 48302e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng // For LT / GT, if high part is known true, ignore the low part. 48312e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Tmp2; 48322e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 48332e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } else { 48342e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = TLI.SimplifySetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, 48352e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng ISD::SETEQ, false, DagCombineInfo); 48362e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng if (!Result.Val) 48372e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result=DAG.getSetCC(TLI.getSetCCResultTy(), LHSHi, RHSHi, ISD::SETEQ); 48382e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), 48392e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Result, Tmp1, Tmp2)); 48402e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp1 = Result; 48412e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng Tmp2 = SDOperand(); 48422e67781ef571f5daffd7e6c2f71750be122e0ac9Evan Cheng } 4843750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 4844750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman } 48452b49c500838666dd0186d021389d4dd70ffda240Evan Cheng } 4846750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman LHS = Tmp1; 4847750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman RHS = Tmp2; 4848750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman} 4849750ac1bdfa6f09bddfd9efce1d6360dde8fa74c0Nate Begeman 48501401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// EmitStackConvert - Emit a store/load combination to the stack. This stores 48511401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// SrcOp to a stack slot of type SlotVT, truncating it if needed. It then does 48521401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// a load from the stack slot to DestVT, extending it if needed. 48531401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// The resultant code need not be legal. 48541401d15c99b284ead81b8476a6db95328c5f28fdChris LattnerSDOperand SelectionDAGLegalize::EmitStackConvert(SDOperand SrcOp, 48551401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner MVT::ValueType SlotVT, 48561401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner MVT::ValueType DestVT) { 485735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 48581401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner SDOperand FIPtr = DAG.CreateStackTemporary(SlotVT); 48591401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 4860bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(FIPtr); 486169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman int SPFI = StackPtrFI->getIndex(); 486269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 48631401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner unsigned SrcSize = MVT::getSizeInBits(SrcOp.getValueType()); 48641401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner unsigned SlotSize = MVT::getSizeInBits(SlotVT); 48651401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner unsigned DestSize = MVT::getSizeInBits(DestVT); 48661401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 48671401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // Emit a store to the stack slot. Use a truncstore if the input value is 48681401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // later than DestVT. 48691401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner SDOperand Store; 48701401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SrcSize > SlotSize) 487169de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Store = DAG.getTruncStore(DAG.getEntryNode(), SrcOp, FIPtr, 48723069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 487369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SPFI, SlotVT); 48741401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner else { 48751401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SrcSize == SlotSize && "Invalid store"); 487669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, 48773069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 487869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman SPFI, SlotVT); 48791401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner } 488035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 488135481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 48821401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SlotSize == DestSize) 48831401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0); 48841401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner 48851401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SlotSize < DestSize && "Unknown extension!"); 48861401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner return DAG.getExtLoad(ISD::EXTLOAD, DestVT, Store, FIPtr, NULL, 0, SlotVT); 488735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 488835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 48894352cc9e217e4482ad53f5a7b92c3543f569eb6eChris LattnerSDOperand SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 48904352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 48914352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 489285dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand StackPtr = DAG.CreateStackTemporary(Node->getValueType(0)); 489369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 4894bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(StackPtr); 489569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman int SPFI = StackPtrFI->getIndex(); 489669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 4897786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, 48983069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), SPFI); 489969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, 49003069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), SPFI); 49014352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 49024352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 49034352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 4904ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 490507a96765daedf180a7102d39fe56c499878312b7Dan Gohman/// support the operation, but do support the resultant vector type. 4906ce87215131efcc68dcf7fca61055ad783a7aeb0eChris LattnerSDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 4907ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4908ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the only non-undef value is the low element, turn this into a 490987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 4910033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned NumElems = Node->getNumOperands(); 4911ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 491287100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SDOperand SplatValue = Node->getOperand(0); 4913033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::map<SDOperand, std::vector<unsigned> > Values; 4914033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Values[SplatValue].push_back(0); 49152eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 49162eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && 49172eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatValue.getOpcode() != ISD::UNDEF) 49182eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 49192eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4920033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 1; i < NumElems; ++i) { 4921033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand V = Node->getOperand(i); 492289a1b380a475cbe477e50ff4b94335596b37f21aChris Lattner Values[V].push_back(i); 4923033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (V.getOpcode() != ISD::UNDEF) 4924ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 4925033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (SplatValue != V) 492687100e0b83b808757bf44dabecd1d1048255d1adChris Lattner SplatValue = SDOperand(0,0); 49272eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 49282eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If this isn't a constant element or an undef, we can't use a constant 49292eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // pool load. 49302eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && 49312eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner V.getOpcode() != ISD::UNDEF) 49322eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 4933ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4934ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 4935ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isOnlyLowElement) { 4936ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // If the low element is an undef too, then this whole things is an undef. 4937ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(0).getOpcode() == ISD::UNDEF) 4938ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); 4939ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, turn this into a scalar_to_vector node. 4940ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 4941ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Node->getOperand(0)); 4942ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4943ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 49442eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 4945ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 4946ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 4947ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner const Type *OpNTy = 4948ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getTypeForValueType(Node->getOperand(0).getValueType()); 4949ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 4950033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 4951ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (ConstantFPSDNode *V = 4952ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 4953f04afdbb48568ef09f11fd10ac03426101f2dbf8Dale Johannesen CV.push_back(ConstantFP::get(OpNTy, V->getValueAPF())); 4954ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else if (ConstantSDNode *V = 4955ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 4956b83eb6447ba155342598f0fabe1f08f5baa9164aReid Spencer CV.push_back(ConstantInt::get(OpNTy, V->getValue())); 4957ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 4958ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 4959ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner CV.push_back(UndefValue::get(OpNTy)); 4960ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 4961ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 49629d6565a5b1fbc4286d6ee638d8f47a3171a9ed7eReid Spencer Constant *CP = ConstantVector::get(CV); 4963ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 496469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, 49653069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 4966ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 49672eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 49682eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner if (SplatValue.Val) { // Splat of one value? 49692eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Build the shuffle constant vector: <0, 0, 0, 0> 49702eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::ValueType MaskVT = 49712eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner MVT::getIntVectorWithNumElements(NumElems); 497251eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman SDOperand Zero = DAG.getConstant(0, MVT::getVectorElementType(MaskVT)); 49732eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner std::vector<SDOperand> ZeroVec(NumElems, Zero); 4974bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 4975bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &ZeroVec[0], ZeroVec.size()); 4976033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 49772eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 49784352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (isShuffleLegal(Node->getValueType(0), SplatMask)) { 49792eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 49802eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SDOperand LowValVec = 49812eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); 49822eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 49832eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 49842eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, 49852eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner DAG.getNode(ISD::UNDEF, Node->getValueType(0)), 49862eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner SplatMask); 49872eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 49882eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner } 49892eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner 4990033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If there are only two unique elements, we may be able to turn this into a 4991033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // vector shuffle. 4992033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng if (Values.size() == 2) { 4993033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Build the shuffle constant vector: e.g. <0, 4, 0, 4> 4994033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::ValueType MaskVT = 4995033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng MVT::getIntVectorWithNumElements(NumElems); 4996033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng std::vector<SDOperand> MaskVec(NumElems); 4997033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng unsigned i = 0; 4998033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 4999033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 5000033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (std::vector<unsigned>::iterator II = I->second.begin(), 5001033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng EE = I->second.end(); II != EE; ++II) 500251eaa86758338d5935c0eff0469c418b1256aba7Dan Gohman MaskVec[*II] = DAG.getConstant(i, MVT::getVectorElementType(MaskVT)); 5003033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng i += NumElems; 5004033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 5005bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, 5006bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &MaskVec[0], MaskVec.size()); 5007033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 5008033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. 50094352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && 50104352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner isShuffleLegal(Node->getValueType(0), ShuffleMask)) { 5011bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Ops; 5012033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for(std::map<SDOperand,std::vector<unsigned> >::iterator I=Values.begin(), 5013033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng E = Values.end(); I != E; ++I) { 5014033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng SDOperand Op = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), 5015033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng I->first); 5016033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(Op); 5017033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 5018033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng Ops.push_back(ShuffleMask); 5019033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng 5020033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) 5021bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), 5022bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Ops[0], Ops.size()); 5023033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 5024033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 5025ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5026ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Otherwise, we can't handle this case efficiently. Allocate a sufficiently 5027ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // aligned object on the stack, store each element into it, then load 5028ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // the result as a vector. 5029ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::ValueType VT = Node->getValueType(0); 5030ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Create the stack frame object. 503185dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand FIPtr = DAG.CreateStackTemporary(VT); 5032ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5033ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Emit a store of each element to the stack slot. 5034bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> Stores; 5035ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner unsigned TypeByteSize = 5036ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner MVT::getSizeInBits(Node->getOperand(0).getValueType())/8; 5037ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Store (in the right endianness) the elements to memory. 5038ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 5039ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Ignore undef elements. 5040ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 5041ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5042841c882f5dae8c953ea99b5824108313549cfaf8Chris Lattner unsigned Offset = TypeByteSize*i; 5043ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5044ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 5045ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); 5046ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5047786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, 50488b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng NULL, 0)); 5049ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 5050ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5051ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner SDOperand StoreChain; 5052ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (!Stores.empty()) // Not all undef elements? 5053bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, 5054bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner &Stores[0], Stores.size()); 5055ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner else 5056ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner StoreChain = DAG.getEntryNode(); 5057ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 5058ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner // Result is a load from the stack slot. 5059466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); 5060ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 5061ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 50625b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattnervoid SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, 50635b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand Op, SDOperand Amt, 50645b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand &Lo, SDOperand &Hi) { 50655b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner // Expand the subcomponents. 50665b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner SDOperand LHSL, LHSH; 50675b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner ExpandOp(Op, LHSL, LHSH); 50685b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 5069bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SDOperand Ops[] = { LHSL, LHSH, Amt }; 5070f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner MVT::ValueType VT = LHSL.getValueType(); 5071f9f37fc52c444e34bad7846729ae5481a65e0a53Chris Lattner Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 50725b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner Hi = Lo.getValue(1); 50735b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner} 50745b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 50755b359c6c4f052e41579ad7da9af37db4f54207d9Chris Lattner 5076e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// ExpandShift - Try to find a clever way to expand this shift operation out to 5077e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// smaller elements. If we can't find a way that is more efficient than a 5078e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// libcall on this target, return false. Otherwise, return true with the 5079e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner/// low-parts expanded into Lo and Hi. 5080e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattnerbool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDOperand Op,SDOperand Amt, 5081e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner SDOperand &Lo, SDOperand &Hi) { 5082e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && 5083e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner "This is not a shift!"); 5084f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 5085e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(Op.getValueType()); 5086f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand ShAmt = LegalizeOp(Amt); 5087f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman MVT::ValueType ShTy = ShAmt.getValueType(); 508891dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman unsigned ShBits = MVT::getSizeInBits(ShTy); 5089f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned VTBits = MVT::getSizeInBits(Op.getValueType()); 5090f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned NVTBits = MVT::getSizeInBits(NVT); 5091f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman 50927a3c85583d523edb90aa957a02385254957c6e37Chris Lattner // Handle the case when Amt is an immediate. 5093f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.Val)) { 5094f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman unsigned Cst = CN->getValue(); 5095f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman // Expand the incoming operand to be shifted, so that we have its parts 5096f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman SDOperand InL, InH; 5097f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman ExpandOp(Op, InL, InH); 5098f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman switch(Opc) { 5099f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SHL: 5100f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5101f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5102f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5103f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5104f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5105f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); 5106ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5107ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = DAG.getConstant(0, NVT); 5108ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = InL; 5109f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5110f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); 5111f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::OR, NVT, 5112f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), 5113f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); 5114f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5115f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5116f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRL: 5117f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5118f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getConstant(0, NVT); 5119f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5120f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5121f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); 5122f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getConstant(0, NVT); 5123ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5124ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 5125ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Hi = DAG.getConstant(0, NVT); 5126f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5127f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 5128f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 5129f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 5130f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); 5131f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5132f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5133f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman case ISD::SRA: 5134f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman if (Cst > VTBits) { 5135edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, 5136f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 5137f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else if (Cst > NVTBits) { 5138edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Lo = DAG.getNode(ISD::SRA, NVT, InH, 5139f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(Cst-NVTBits, ShTy)); 5140edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 5141f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getConstant(NVTBits-1, ShTy)); 5142ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner } else if (Cst == NVTBits) { 5143ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner Lo = InH; 5144edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman Hi = DAG.getNode(ISD::SRA, NVT, InH, 5145ee27f57a6a4dd7fa9259b3604f563907da1f65efChris Lattner DAG.getConstant(NVTBits-1, ShTy)); 5146f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } else { 5147f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Lo = DAG.getNode(ISD::OR, NVT, 5148f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), 5149f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); 5150f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); 5151f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5152f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return true; 5153f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 5154f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman } 51550ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51560ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Okay, the shift amount isn't constant. However, if we can tell that it is 51570ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // >= 32 or < 32, we can still simplify it, without knowing the actual value. 515891dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman APInt Mask = APInt::getHighBitsSet(ShBits, ShBits - Log2_32(NVTBits)); 515991dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman APInt KnownZero, KnownOne; 5160ea859be53ca13a1547c4675549946b74dc3c6f41Dan Gohman DAG.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); 51610ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51629e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // If we know that if any of the high bits of the shift amount are one, then 51639e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // we can do this as a couple of simple shifts. 516491dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman if (KnownOne.intersects(Mask)) { 51650ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Mask out the high bit, which we know is set. 51660ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, 516791dc17ba4991e971c7e89e07642b10817aa28055Dan Gohman DAG.getConstant(~Mask, Amt.getValueType())); 51680ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51690ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 51700ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 51710ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 51720ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 51730ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 51740ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getConstant(0, NVT); // Low part is zero. 51750ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. 51760ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51770ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 51780ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getConstant(0, NVT); // Hi part is zero. 51790ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. 51800ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51810ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 51820ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. 51830ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits-1, Amt.getValueType())); 51840ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. 51850ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 51860ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 51870ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 51880ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51899e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // If we know that the high bits of the shift amount are all zero, then we can 51909e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman // do this as a couple of simple shifts. 51919e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman if ((KnownZero & Mask) == Mask) { 51920ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Compute 32-amt. 51930ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), 51940ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getConstant(NVTBits, Amt.getValueType()), 51950ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Amt); 51960ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 51970ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner // Expand the incoming operand to be shifted, so that we have its parts 51980ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner SDOperand InL, InH; 51990ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner ExpandOp(Op, InL, InH); 52000ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner switch(Opc) { 52010ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SHL: 52020ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); 52030ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::OR, NVT, 52040ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt), 52050ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt2)); 52060ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52070ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRL: 52080ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); 52090ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 52100ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 52110ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 52120ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52130ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner case ISD::SRA: 52140ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); 52150ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner Lo = DAG.getNode(ISD::OR, NVT, 52160ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SRL, NVT, InL, Amt), 52170ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner DAG.getNode(ISD::SHL, NVT, InH, Amt2)); 52180ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner return true; 52190ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 52200ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner } 52210ea26ca45b56b2b4cc1839cdbccc13a38b066969Chris Lattner 5222f1fe32e337cf825a27a57bb3e9fb847bc91a26ceNate Begeman return false; 5223e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner} 522477e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 52259c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 522677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 522777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 522877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 522977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 523077e77a6aa0ab25a812947aed477220dd11220a18Chris LattnerSDOperand SelectionDAGLegalize::ExpandLibCall(const char *Name, SDNode *Node, 523147857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer bool isSigned, SDOperand &Hi) { 52326831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 52336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The input chain to this libcall is the entry node of the function. 52346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 52356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 52366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand InChain = DAG.getEntryNode(); 52376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 523877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 523947857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 524077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 524177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner MVT::ValueType ArgVT = Node->getOperand(i).getValueType(); 524277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *ArgTy = MVT::getTypeForValueType(ArgVT); 524347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; 5244d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.isSExt = isSigned; 524500fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands Entry.isZExt = !isSigned; 524647857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 524777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 524877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner SDOperand Callee = DAG.getExternalSymbol(Name, TLI.getPointerTy()); 5249edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 52500d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 525177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner const Type *RetTy = MVT::getTypeForValueType(Node->getValueType(0)); 52520d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner std::pair<SDOperand,SDOperand> CallInfo = 525300fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands TLI.LowerCallTo(InChain, RetTy, isSigned, !isSigned, false, CallingConv::C, 525400fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands false, Callee, Args, DAG); 52550d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 52566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 52576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 52586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 52596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 526099c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner SDOperand Result; 52610d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner switch (getTypeAction(CallInfo.first.getValueType())) { 526277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner default: assert(0 && "Unknown thing"); 526377e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Legal: 5264456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = CallInfo.first; 526599c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 526677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner case Expand: 526799c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner ExpandOp(CallInfo.first, Result, Hi); 526899c25b86aa85b0093f24b2394a5aa37f66294b2bChris Lattner break; 526977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 527022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 527122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 527222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 527322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 52744c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// ExpandIntToFP - Expand a [US]INT_TO_FP operation. 52754c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng/// 527622cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize:: 527722cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerExpandIntToFP(bool isSigned, MVT::ValueType DestTy, SDOperand Source) { 527822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(getTypeAction(Source.getValueType()) == Expand && 527922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This is not an expansion!"); 528022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && "Only handle expand from i64!"); 528122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 528222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!isSigned) { 528322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(Source.getValueType() == MVT::i64 && 528422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner "This only works for 64-bit -> FP"); 528522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // The 64-bit value loaded will be incorrectly if the 'sign bit' of the 528622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // incoming integer is set. To handle this, we dynamically test to see if 528722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // it is set, and, if so, add a fudge factor. 528822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Lo, Hi; 528922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, Lo, Hi); 529022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 529122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If this is unsigned, and not supported, first perform the conversion to 529222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // signed, then adjust the result if the sign bit is set. 529322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignedConv = ExpandIntToFP(true, DestTy, 529422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), Lo, Hi)); 529522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 529622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Hi, 529722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Hi.getValueType()), 529822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 52990bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner SDOperand Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); 530022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 530122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 530222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF = 0x5f800000ULL; 530322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 530447857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 530522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 530622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 530722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 530822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 530922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 531069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 53113069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 5312118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen else if (MVT::getSizeInBits(DestTy) > MVT::getSizeInBits(MVT::f32)) 53134c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // FIXME: Avoid the extend by construction the right constantpool? 5314118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, DestTy, DAG.getEntryNode(), 531569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman CPIdx, 53163069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0, 531769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman MVT::f32); 53189e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen else 53199e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen assert(0 && "Unexpected conversion"); 53209e3d3abd937c9bb79d56d25ec0e0724c7cbba67cDale Johannesen 53214c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng MVT::ValueType SCVT = SignedConv.getValueType(); 53224c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (SCVT != DestTy) { 53234c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // Destination type needs to be expanded as well. The FADD now we are 53244c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng // constructing will be expanded into a libcall. 53254c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (MVT::getSizeInBits(SCVT) != MVT::getSizeInBits(DestTy)) { 53264c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(SCVT == MVT::i32 && DestTy == MVT::f64); 53274c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BUILD_PAIR, MVT::i64, 53284c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv, SignedConv.getValue(1)); 53294c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 53304c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng SignedConv = DAG.getNode(ISD::BIT_CONVERT, DestTy, SignedConv); 53314c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 533222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); 533322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 533422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 533522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Check to see if the target has a custom way to lower this. If so, use it. 533622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, Source.getValueType())) { 533722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "This action not implemented for this operation!"); 533822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 533922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Expand: 534022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // This case is handled below. 534122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: { 534222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, 534322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source), DAG); 534422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (NV.Val) 534522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return LegalizeOp(NV); 534622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // The target decided this was legal after all 534722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 534822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 534922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 535022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Expand the source, then glue it back together for the call. We must expand 535122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // the source in case it is shared (this pass of legalize must traverse it). 535222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SrcLo, SrcHi; 535322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ExpandOp(Source, SrcLo, SrcHi); 535422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Source = DAG.getNode(ISD::BUILD_PAIR, Source.getValueType(), SrcLo, SrcHi); 535522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 535656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC; 535722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestTy == MVT::f32) 535856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F32; 535922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 536022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(DestTy == MVT::f64 && "Unknown fp value type!"); 536156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::SINTTOFP_I64_F64; 536222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 53636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 53644c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng assert(TLI.getLibcallName(LC) && "Don't know how to expand this SINT_TO_FP!"); 53656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); 53666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDOperand UnusedHiPart; 536756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng return ExpandLibCall(TLI.getLibcallName(LC), Source.Val, isSigned, 536856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng UnusedHiPart); 536922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 537022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 537122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 537222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 537322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 537422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 537522cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 537622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0, 537722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT) { 537822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (Op0.getValueType() == MVT::i32) { 537922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 538022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 538123594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner // Get the stack frame index of a 8 byte buffer. 538223594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner SDOperand StackSlot = DAG.CreateStackTemporary(MVT::f64); 538323594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner 538422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 538522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 538622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 5387408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Hi = StackSlot; 5388408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner SDOperand Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); 5389408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 5390408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 5391408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner 539222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 539322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Op0Mapped; 539422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 539522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 539622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignBit = DAG.getConstant(0x80000000u, MVT::i32); 539722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); 539822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 539922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 540022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 540122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 5402786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand Store1 = DAG.getStore(DAG.getEntryNode(), 54038b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Op0Mapped, Lo, NULL, 0); 540422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 540522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 540622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 54078b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng SDOperand Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); 540822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 5409466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); 541022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 541122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Bias = DAG.getConstantFP(isSigned ? 541222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner BitsToDouble(0x4330000080000000ULL) 541322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner : BitsToDouble(0x4330000000000000ULL), 541422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::f64); 541522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 541622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); 541722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 541822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Result; 541922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 542022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f64) { 542122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 542222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 5423118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen } else if (MVT::getSizeInBits(DestVT) < MVT::getSizeInBits(MVT::f64)) { 54240bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner Result = DAG.getNode(ISD::FP_ROUND, DestVT, Sub, 54250bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(0)); 5426118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen } else if (MVT::getSizeInBits(DestVT) > MVT::getSizeInBits(MVT::f64)) { 5427118cd9dbbad3a47f37dc1b1529ef920e4d5e13f6Dale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, DestVT, Sub); 542822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 542922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 543022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 543122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 543222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); 543322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 543422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand SignSet = DAG.getSetCC(TLI.getSetCCResultTy(), Op0, 543522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getConstant(0, Op0.getValueType()), 543622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner ISD::SETLT); 54370bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner SDOperand Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); 543822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), 543922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SignSet, Four, Zero); 544022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 544122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the sign bit of the integer is set, the large number will be treated 544222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // as a negative number. To counteract this, the dynamic code adds an 544322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // offset depending on the data type. 544422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner uint64_t FF; 544522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Op0.getValueType()) { 544622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unsupported integer type!"); 544722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 544822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 544922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 545022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 545122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 545222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (TLI.isLittleEndian()) FF <<= 32; 545347857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); 545422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 545522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 545622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); 545722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand FudgeInReg; 545822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (DestVT == MVT::f32) 545969de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, 54603069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0); 546122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner else { 546269de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FudgeInReg = 546369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, DestVT, 546469de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman DAG.getEntryNode(), CPIdx, 54653069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getConstantPool(), 0, 546669de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman MVT::f32)); 546722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 546822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 546922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); 547022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 547122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 547222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 547322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 547422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 547522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 547622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 547722cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDOperand LegalOp, 547822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 547922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 548022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 548122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewInTy = LegalOp.getValueType(); 548222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 548322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 548422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 548522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 548622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 548722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy = (MVT::ValueType)(NewInTy+1); 548822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewInTy) && "Ran out of possibilities!"); 548922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 549022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 549122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { 549222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 549322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 549422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 549522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 549622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 549722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 549822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::SINT_TO_FP; 549922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 550022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 550122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 550222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 550322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 550422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 550522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { 550622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 550722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 550822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewInTy)) 550922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 551022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 551122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 551222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::UINT_TO_FP; 551322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 551422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 551522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 551622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 551722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 551822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 551922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 552022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 552122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 552222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(OpToUse, DestVT, 552322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 552422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewInTy, LegalOp)); 552577e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 552677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 552722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 552822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 552922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 553022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 553122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 553222cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDOperand LegalOp, 553322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType DestVT, 553422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner bool isSigned) { 553522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 553622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType NewOutTy = DestVT; 55379c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 553822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 5539e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 554022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 554122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 554222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner NewOutTy = (MVT::ValueType)(NewOutTy+1); 554322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(MVT::isInteger(NewOutTy) && "Ran out of possibilities!"); 554466de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 554522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_SINT returning this type, use it. 554622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { 554722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 554822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 554922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 555022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 555122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 555222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 555322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 555422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 555522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 555622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 5557e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 555822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports FP_TO_UINT of this type, use it. 555922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { 556022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: break; 556122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Legal: 556222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isTypeLegal(NewOutTy)) 556322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; // Can't use this datatype. 556422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FALL THROUGH. 556522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case TargetLowering::Custom: 556622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 556722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 5568e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 556922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (OpToUse) break; 55700d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 557122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 5572a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 5573a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 557427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 557527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Okay, we found the operation and type to use. 557627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner SDOperand Operation = DAG.getNode(OpToUse, NewOutTy, LegalOp); 557727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 557827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // If the operation produces an invalid type, it must be custom lowered. Use 557927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // the target lowering hooks to expand it. Just keep the low part of the 558027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // expanded operation, we know that we're truncating anyway. 558127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner if (getTypeAction(NewOutTy) == Expand) { 558227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner Operation = SDOperand(TLI.ExpandOperationResult(Operation.Val, DAG), 0); 558327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Operation.Val && "Didn't return anything"); 558427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 558527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 558627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Truncate the result of the extended FP_TO_*INT operation to the desired 558727a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // size. 558827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner return DAG.getNode(ISD::TRUNCATE, DestVT, Operation); 558922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 559013689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 559122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 559222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 559322cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBSWAP(SDOperand Op) { 559422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 559522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType SHVT = TLI.getShiftAmountTy(); 559622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 559722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (VT) { 559822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); 559922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i16: 560022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 560122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 560222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); 560322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i32: 560422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 560522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 560622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 560722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 560822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 560922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 561022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 561122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 561222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 561322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case MVT::i64: 561422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); 561522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); 561622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); 561722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); 561822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); 561922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); 562022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); 562122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); 562222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 562322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 562422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 562522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 562622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 562722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 562822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); 562922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); 563022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); 563122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); 563222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); 563322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); 563422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); 56350d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 563677e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 5637edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 563822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 563922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 564022cde6a518782cafc2115ad8d8233f79c9e9d52eChris LattnerSDOperand SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDOperand Op) { 564122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 564222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner default: assert(0 && "Cannot expand this yet!"); 564322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 564422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 564522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 564622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 564722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 564822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 564922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 565022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 5651b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 565222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 565322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 565422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(mask[i], VT); 565522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 565622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), 565722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::AND, VT, 565822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); 565922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 566022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 566122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 566222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 566322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 566422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 566522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 566622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 566722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 566822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 566922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 567022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 567122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 567222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 567322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType ShVT = TLI.getShiftAmountTy(); 5674b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman unsigned len = MVT::getSizeInBits(VT); 567522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 567622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getConstant(1ULL << i, ShVT); 567722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); 567822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 567922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); 568022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Op); 568122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 568222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 568322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 568422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 568522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 568622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 568722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner MVT::ValueType VT = Op.getValueType(); 568822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp2 = DAG.getConstant(~0ULL, VT); 568922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner SDOperand Tmp3 = DAG.getNode(ISD::AND, VT, 569022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::XOR, VT, Op, Tmp2), 569122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); 569222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 569322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (!TLI.isOperationLegal(ISD::CTPOP, VT) && 569422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner TLI.isOperationLegal(ISD::CTLZ, VT)) 569522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::SUB, VT, 5696b55757ec5f6f0218342a8910e1bbd9f018adc7d7Dan Gohman DAG.getConstant(MVT::getSizeInBits(VT), VT), 569722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(ISD::CTLZ, VT, Tmp3)); 569822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return DAG.getNode(ISD::CTPOP, VT, Tmp3); 569922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 570022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 570122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 5702e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 57033e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandOp - Expand the specified SDOperand into its two component pieces 57043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the 57053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// LegalizeNodes map is filled in for any results that are not expanded, the 57063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// ExpandedNodes map is filled in for any results that are expanded, and the 57073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// Lo/Hi values are returned. 57083e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::ExpandOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi){ 57093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner MVT::ValueType VT = Op.getValueType(); 571071c42a0190300a8903aaea80467b88f15f327ea9Chris Lattner MVT::ValueType NVT = TLI.getTypeToTransformTo(VT); 57113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDNode *Node = Op.Val; 57123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(getTypeAction(VT) == Expand && "Not an expanded type!"); 57131a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng assert(((MVT::isInteger(NVT) && NVT < VT) || MVT::isFloatingPoint(VT) || 57147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::isVector(VT)) && 57153e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Cannot expand to FP value or to larger int value!"); 57163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 57176fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner // See if we already expanded it. 571840030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner DenseMap<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 57196fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner = ExpandedNodes.find(Op); 57206fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner if (I != ExpandedNodes.end()) { 57216fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Lo = I->second.first; 57226fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner Hi = I->second.second; 57236fdcb250d5692235813b30274cdfcd0e76377f00Chris Lattner return; 57243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 57253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 57263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 5727348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner case ISD::CopyFromReg: 5728348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner assert(0 && "CopyFromReg must be legal!"); 57296eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen case ISD::FP_ROUND_INREG: 57306eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen if (VT == MVT::ppcf128 && 57316eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TLI.getOperationAction(ISD::FP_ROUND_INREG, VT) == 57326eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen TargetLowering::Custom) { 5733fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen SDOperand SrcLo, SrcHi, Src; 5734fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen ExpandOp(Op.getOperand(0), SrcLo, SrcHi); 5735fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen Src = DAG.getNode(ISD::BUILD_PAIR, VT, SrcLo, SrcHi); 5736fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen SDOperand Result = TLI.LowerOperation( 5737fcf4d24ffbba0935de3e8371cfd52fc3d6980789Dale Johannesen DAG.getNode(ISD::FP_ROUND_INREG, VT, Src, Op.getOperand(1)), DAG); 57386eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen assert(Result.Val->getOpcode() == ISD::BUILD_PAIR); 57396eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Lo = Result.Val->getOperand(0); 57406eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen Hi = Result.Val->getOperand(1); 57416eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen break; 57426eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen } 57436eaeff29b8a6990107735f7e5f5e49da38f56223Dale Johannesen // fall through 5744348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner default: 5745e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 574639833585556a69de12053ca1e104fe7edfd86cbdDan Gohman cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; 5747e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 57483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner assert(0 && "Do not know how to expand this operator!"); 57493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner abort(); 57501953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman case ISD::EXTRACT_ELEMENT: 57511953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman ExpandOp(Node->getOperand(0), Lo, Hi); 57521953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman if (cast<ConstantSDNode>(Node->getOperand(1))->getValue()) 57531953ecb0a6fc8520b34b52fd04f7476a7eb4613fDan Gohman return ExpandOp(Hi, Lo, Hi); 575418714aeaed2a74bfc85dc5abe24a9193882406c5Dan Gohman return ExpandOp(Lo, Lo, Hi); 575525f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen case ISD::EXTRACT_VECTOR_ELT: 575625f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen assert(VT==MVT::i64 && "Do not know how to expand this operator!"); 575725f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen // ExpandEXTRACT_VECTOR_ELT tolerates invalid result types. 575825f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen Lo = ExpandEXTRACT_VECTOR_ELT(Op); 575925f1d08619720b82e7c944b18eee488fc07ba153Dale Johannesen return ExpandOp(Lo, Lo, Hi); 5760fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman case ISD::UNDEF: 5761aa975c1c4785a1d7930f2cd1026cb40ce54d21e4Evan Cheng NVT = TLI.getTypeToExpandTo(VT); 5762fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Lo = DAG.getNode(ISD::UNDEF, NVT); 5763fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman Hi = DAG.getNode(ISD::UNDEF, NVT); 5764fc1b1dad88a256ab5ab16dd548ad82df8efa2ca9Nate Begeman break; 57653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::Constant: { 5766050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman unsigned NVTBits = MVT::getSizeInBits(NVT); 5767050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman const APInt &Cst = cast<ConstantSDNode>(Node)->getAPIntValue(); 5768050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman Lo = DAG.getConstant(APInt(Cst).trunc(NVTBits), NVT); 5769050f550aeb3938d8e202156473fac5eabf0fa703Dan Gohman Hi = DAG.getConstant(Cst.lshr(NVTBits).trunc(NVTBits), NVT); 57703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 57713e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 5772004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng case ISD::ConstantFP: { 5773004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 5774a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen if (CFP->getValueType(0) == MVT::ppcf128) { 5775a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen APInt api = CFP->getValueAPF().convertToAPInt(); 5776a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[1])), 5777a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5778a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen Hi = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[0])), 5779a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen MVT::f64); 5780a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen break; 5781a471c2ecda37cd1bae0d94e832f002caa7b63216Dale Johannesen } 5782279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng Lo = ExpandConstantFP(CFP, false, DAG, TLI); 57839f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 57849f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5785004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5786004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5787d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner case ISD::BUILD_PAIR: 57888137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Return the operands. 57898137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = Node->getOperand(0); 57908137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = Node->getOperand(1); 5791d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner break; 579227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner 579327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::MERGE_VALUES: 5794c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner if (Node->getNumValues() == 1) { 5795c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 5796c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner break; 5797c58d558a79c3638c23d8fd09d89accff33285653Chris Lattner } 579827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // FIXME: For now only expand i64,chain = MERGE_VALUES (x, y) 579927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Op.ResNo == 0 && Node->getNumValues() == 2 && 580027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner Op.getValue(1).getValueType() == MVT::Other && 580127a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner "unhandled MERGE_VALUES"); 580227a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Op.getOperand(0), Lo, Hi); 580327a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Remember that we legalized the chain. 580427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Op.getOperand(1))); 580527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner break; 580658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner 580758f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner case ISD::SIGN_EXTEND_INREG: 580858f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 58094bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // sext_inreg the low part if needed. 58104bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); 58114bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner 58124bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // The high part gets the sign extension from the lo-part. This handles 58134bdd2753db4a9d92b64c68b042c8b38f7223238dChris Lattner // things like sextinreg V:i64 from i8. 581458f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 581558f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner DAG.getConstant(MVT::getSizeInBits(NVT)-1, 581658f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner TLI.getShiftAmountTy())); 581758f7963b8b3cb8894623a7d7663cc54005fea8f9Chris Lattner break; 5818d4e50bb2e23b8f9ddde629a28dab3bcdaf0633e4Chris Lattner 5819d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman case ISD::BSWAP: { 5820d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman ExpandOp(Node->getOperand(0), Lo, Hi); 5821d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman SDOperand TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); 5822d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); 5823d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman Lo = TempLo; 5824d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman break; 5825d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman } 5826d88fc03602947b5baa35c8b09fe8bcfa2b4a03c1Nate Begeman 5827edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner case ISD::CTPOP: 5828edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 58299b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) 58309b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Lo), 58319b583b49103f21888ac3de3f7941a98a63a23aeaChris Lattner DAG.getNode(ISD::CTPOP, NVT, Hi)); 5832edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner Hi = DAG.getConstant(0, NVT); 5833edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner break; 5834edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 583539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTLZ: { 583639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) 58373becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 583839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 583939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); 58407cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand TopNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), HLZ, BitsC, 58417cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 584239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); 584339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); 584439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 584539a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); 584639a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 584739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 584839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 584939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 585039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner case ISD::CTTZ: { 585139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) 58523becf2026bec881a60cbbe0031d8c51f4d6d4e28Chris Lattner ExpandOp(Node->getOperand(0), Lo, Hi); 585339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand BitsC = DAG.getConstant(MVT::getSizeInBits(NVT), NVT); 585439a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); 58557cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner SDOperand BotNotZero = DAG.getSetCC(TLI.getSetCCResultTy(), LTZ, BitsC, 58567cf7e3f33f25544d08492d47cc8a1cbba25dc8d7Chris Lattner ISD::SETNE); 585739a8f336305a492fc6d2625f39f08968185616d2Chris Lattner SDOperand HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); 585839a8f336305a492fc6d2625f39f08968185616d2Chris Lattner HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); 585939a8f336305a492fc6d2625f39f08968185616d2Chris Lattner 586039a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); 586139a8f336305a492fc6d2625f39f08968185616d2Chris Lattner Hi = DAG.getConstant(0, NVT); 586239a8f336305a492fc6d2625f39f08968185616d2Chris Lattner break; 586339a8f336305a492fc6d2625f39f08968185616d2Chris Lattner } 5864edb1add9a093efa266c94b6d0a34c26f5b2d5d7bChris Lattner 5865acc398c195a697795bff3245943d104eb19192b9Nate Begeman case ISD::VAARG: { 58668137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ch = Node->getOperand(0); // Legalize the chain. 58678137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Ptr = Node->getOperand(1); // Legalize the pointer. 5868acc398c195a697795bff3245943d104eb19192b9Nate Begeman Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); 5869acc398c195a697795bff3245943d104eb19192b9Nate Begeman Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); 5870acc398c195a697795bff3245943d104eb19192b9Nate Begeman 5871acc398c195a697795bff3245943d104eb19192b9Nate Begeman // Remember that we legalized the chain. 58728137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = LegalizeOp(Hi); 5873acc398c195a697795bff3245943d104eb19192b9Nate Begeman AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); 58740753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 5875acc398c195a697795bff3245943d104eb19192b9Nate Begeman std::swap(Lo, Hi); 5876acc398c195a697795bff3245943d104eb19192b9Nate Begeman break; 5877acc398c195a697795bff3245943d104eb19192b9Nate Begeman } 5878acc398c195a697795bff3245943d104eb19192b9Nate Begeman 58793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::LOAD: { 5880466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 5881466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ch = LD->getChain(); // Legalize the chain. 5882466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand Ptr = LD->getBasePtr(); // Legalize the pointer. 5883466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 5884d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = LD->getSrcValueOffset(); 5885d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = LD->getAlignment(); 5886d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = LD->isVolatile(); 5887466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5888466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 5889d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5890d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5891004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 5892004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // f32->i32 or f64->i64 one to one expansion. 5893004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // Remember that we legalized the chain. 5894004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 58959f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng // Recursively expand the new load. 58969f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (getTypeAction(NVT) == Expand) 58979f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng ExpandOp(Lo, Lo, Hi); 5898004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng break; 5899004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 5900466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5901466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Increment the pointer to the other half. 5902466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned IncrementSize = MVT::getSizeInBits(Lo.getValueType())/8; 5903466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 59040bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 59057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 5906dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 5907d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Hi = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), SVOffset, 5908d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman isVolatile, Alignment); 5909466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5910466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Build a factor node to remember that this load is independent of the 5911466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // other one. 5912466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 5913466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi.getValue(1)); 5914466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5915466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5916466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 59170753fc1850a1ca4d17acca854d830d67737fd623Duncan Sands if (TLI.isBigEndian()) 5918466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng std::swap(Lo, Hi); 5919466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 5920b625f2f8960de32bc973092aaee8ac62863006feDan Gohman MVT::ValueType EVT = LD->getMemoryVT(); 5921548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng 5922b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen if ((VT == MVT::f64 && EVT == MVT::f32) || 5923b6210fc92b643a5440d8373b5f36b6e579b5feb8Dale Johannesen (VT == MVT::ppcf128 && (EVT==MVT::f64 || EVT==MVT::f32))) { 5924548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND 5925548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng SDOperand Load = DAG.getLoad(EVT, Ch, Ptr, LD->getSrcValue(), 5926d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5927548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng // Remember that we legalized the chain. 5928548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Load.getValue(1))); 5929548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); 5930548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng break; 5931548f611baeb53e821e7e80f97722b048ab6b09b2Evan Cheng } 5932466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5933466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (EVT == NVT) 5934466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getLoad(NVT, Ch, Ptr, LD->getSrcValue(), 5935d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, isVolatile, Alignment); 5936466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng else 5937466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, LD->getSrcValue(), 5938d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman SVOffset, EVT, isVolatile, 5939d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman Alignment); 5940466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5941466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Remember that we legalized the chain. 5942466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng AddLegalizedOperand(SDOperand(Node, 1), LegalizeOp(Lo.getValue(1))); 5943466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 5944466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::SEXTLOAD) { 5945466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is obtained by SRA'ing all but one of the bits of the 5946466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // lo part. 5947466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 5948466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::SRA, NVT, Lo, 5949466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 5950466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else if (ExtType == ISD::ZEXTLOAD) { 5951466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is just a zero. 5952466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getConstant(0, NVT); 5953466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else /* if (ExtType == ISD::EXTLOAD) */ { 5954466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // The high part is undefined. 5955466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Hi = DAG.getNode(ISD::UNDEF, NVT); 5956466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 5957466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 59583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 59593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 59603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::AND: 59613e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::OR: 59623e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::XOR: { // Simple logical operators -> two trivial pieces. 59633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SDOperand LL, LH, RL, RH; 59643e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(0), LL, LH); 59653e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), RL, RH); 59663e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); 59673e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); 59683e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 59693e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 59703e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SELECT: { 5971456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SDOperand LL, LH, RL, RH; 59723e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(1), LL, LH); 59733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner ExpandOp(Node->getOperand(2), RL, RH); 597419103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 597519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 5976456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); 597719103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 597819103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); 59793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 59803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 59819373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman case ISD::SELECT_CC: { 59829373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman SDOperand TL, TH, FL, FH; 59839373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(2), TL, TH); 59849373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman ExpandOp(Node->getOperand(3), FL, FH); 598519103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 598619103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng NVT = TLI.getTypeToExpandTo(NVT); 59879373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 59889373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman Node->getOperand(1), TL, FL, Node->getOperand(4)); 598919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (VT != MVT::f32) 599019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), 599119103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng Node->getOperand(1), TH, FH, Node->getOperand(4)); 59929373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman break; 59939373a81e53ce5f9f2c06c4209b8b886605aece08Nate Begeman } 59948137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ANY_EXTEND: 599513c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The low part is any extension of the input (which degenerates to a copy). 59968137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); 599713c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner // The high part is undefined. 599813c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner Hi = DAG.getNode(ISD::UNDEF, NVT); 599913c78e2e5f158e9008b279b43b685ff02bb3cbeaChris Lattner break; 60003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner case ISD::SIGN_EXTEND: { 60013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a sign extension of the input (which degenerates to 60023e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 60038137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); 6004edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 60053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is obtained by SRA'ing all but one of the bits of the lo 60063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // part. 60072dad454af674cb41a14a85ad6ce5c85c43959acdChris Lattner unsigned LoSize = MVT::getSizeInBits(Lo.getValueType()); 60088137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Hi = DAG.getNode(ISD::SRA, NVT, Lo, 60098137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); 60103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 60113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 60128137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::ZERO_EXTEND: 60133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The low part is just a zero extension of the input (which degenerates to 60143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // a copy). 60158137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); 6016edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 60173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // The high part is just a zero. 60183e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Hi = DAG.getConstant(0, NVT); 60193e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 602035481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 60214c948eb373779718e5be36d7674382b52114bf65Chris Lattner case ISD::TRUNCATE: { 60224c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The input value must be larger than this value. Expand *it*. 60234c948eb373779718e5be36d7674382b52114bf65Chris Lattner SDOperand NewLo; 60244c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(Node->getOperand(0), NewLo, Hi); 60254c948eb373779718e5be36d7674382b52114bf65Chris Lattner 60264c948eb373779718e5be36d7674382b52114bf65Chris Lattner // The low part is now either the right size, or it is closer. If not the 60274c948eb373779718e5be36d7674382b52114bf65Chris Lattner // right size, make an illegal truncate so we recursively expand it. 60284c948eb373779718e5be36d7674382b52114bf65Chris Lattner if (NewLo.getValueType() != Node->getValueType(0)) 60294c948eb373779718e5be36d7674382b52114bf65Chris Lattner NewLo = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), NewLo); 60304c948eb373779718e5be36d7674382b52114bf65Chris Lattner ExpandOp(NewLo, Lo, Hi); 60314c948eb373779718e5be36d7674382b52114bf65Chris Lattner break; 60324c948eb373779718e5be36d7674382b52114bf65Chris Lattner } 60334c948eb373779718e5be36d7674382b52114bf65Chris Lattner 603435481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner case ISD::BIT_CONVERT: { 6035f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner SDOperand Tmp; 6036f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ 6037f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // If the target wants to, allow it to lower this itself. 6038f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 6039f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 6040f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; 6041f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; 6042f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 6043f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); 6044f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner } 6045f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 60461a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng // f32 / f64 must be expanded to i32 / i64. 604713acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (VT == MVT::f32 || VT == MVT::f64) { 604813acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 604919103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng if (getTypeAction(NVT) == Expand) 605019103b11ecbd5153537a1c64ffefa922fe591addEvan Cheng ExpandOp(Lo, Lo, Hi); 60517b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng break; 60527b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng } 60537b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng 60547b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // If source operand will be expanded to the same type as VT, i.e. 60557b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng // i64 <- f64, i32 <- f32, expand the source operand instead. 60567b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng MVT::ValueType VT0 = Node->getOperand(0).getValueType(); 60577b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { 60587b2b5c846c371f58db73f453a007e52eda62da89Evan Cheng ExpandOp(Node->getOperand(0), Lo, Hi); 60591a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 60601a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng } 60611a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng 6062f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner // Turn this into a load/store pair by default. 6063f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner if (Tmp.Val == 0) 60641401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner Tmp = EmitStackConvert(Node->getOperand(0), VT, VT); 6065f3f333dbd67afde147165bb5ba87889d76a6f436Chris Lattner 606635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner ExpandOp(Tmp, Lo, Hi); 606735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner break; 606835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner } 6069f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 607027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner case ISD::READCYCLECOUNTER: { 6071308575be66ec3870d27b19df044fda18448feb41Chris Lattner assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == 6072308575be66ec3870d27b19df044fda18448feb41Chris Lattner TargetLowering::Custom && 6073308575be66ec3870d27b19df044fda18448feb41Chris Lattner "Must custom expand ReadCycleCounter"); 607427a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner SDOperand Tmp = TLI.LowerOperation(Op, DAG); 607527a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner assert(Tmp.Val && "Node must be custom expanded!"); 607627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner ExpandOp(Tmp.getValue(0), Lo, Hi); 6077308575be66ec3870d27b19df044fda18448feb41Chris Lattner AddLegalizedOperand(SDOperand(Node, 1), // Remember we legalized the chain. 607827a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner LegalizeOp(Tmp.getValue(1))); 6079f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth break; 608027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner } 6081f70e30b41dc6a92733681dcea2c06d8b3dd488dbAndrew Lenharth 60824e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // These operators cannot be expanded directly, emit them as calls to 60834e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner // library functions. 608456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_SINT: { 608580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { 6086f20d183c2268553c738fefb014959ea924dd0555Chris Lattner SDOperand Op; 6087f20d183c2268553c738fefb014959ea924dd0555Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 6088f20d183c2268553c738fefb014959ea924dd0555Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 60898137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 60908137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 6091f20d183c2268553c738fefb014959ea924dd0555Chris Lattner } 6092d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6093f20d183c2268553c738fefb014959ea924dd0555Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); 6094f20d183c2268553c738fefb014959ea924dd0555Chris Lattner 609580a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // Now that the custom expander is done, expand the result, which is still 609680a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner // VT. 609707dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 609807dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 609907dffd6af673c73352150583150b242a93694f00Chris Lattner break; 610007dffd6af673c73352150583150b242a93694f00Chris Lattner } 610180a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 6102d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6103161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 61044e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 610556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F32_I64; 610673328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f64) 610756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOSINT_F64_I64; 6108161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f80) 6109161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_F80_I64; 6110161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 6111161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOSINT_PPCF128_I64; 611256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 611356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 61144e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 611556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 6116d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 611756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FP_TO_UINT: { 611880a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { 61198137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op; 61208137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner switch (getTypeAction(Node->getOperand(0).getValueType())) { 61218137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Expand: assert(0 && "cannot expand FP!"); 61228137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Legal: Op = LegalizeOp(Node->getOperand(0)); break; 61238137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case Promote: Op = PromoteOp (Node->getOperand(0)); break; 61248137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 61258137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 61268137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); 61278137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 61288137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Now that the custom expander is done, expand the result. 612907dffd6af673c73352150583150b242a93694f00Chris Lattner if (Op.Val) { 613007dffd6af673c73352150583150b242a93694f00Chris Lattner ExpandOp(Op, Lo, Hi); 613107dffd6af673c73352150583150b242a93694f00Chris Lattner break; 613207dffd6af673c73352150583150b242a93694f00Chris Lattner } 613380a3e94653574c69ac805d9684a23a94ed3e4b5dChris Lattner } 6134d29b6aa608d69f19b57ebd2ae630b040b1c4951dJeff Cohen 6135daccea18ca8357b4193ac3ba42a168e650b807e0Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 61364e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner if (Node->getOperand(0).getValueType() == MVT::f32) 613756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F32_I64; 613872292f07122de9c8bd41b85e94cb2d3235eca0c9Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f64) 613956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = RTLIB::FPTOUINT_F64_I64; 6140161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::f80) 6141161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOUINT_F80_I64; 6142161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (Node->getOperand(0).getValueType() == MVT::ppcf128) 6143161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::FPTOUINT_PPCF128_I64; 614456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, 614556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 61464e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner break; 614756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng } 61484e6c74689944be1de80c99dc0688ec0bcbd743aaChris Lattner 614905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SHL: { 615050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6151348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 615250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { 61538137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); 615450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 615550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 615650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 615750ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 615850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 615950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 616050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 616150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 616250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 616379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit 616479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner // this X << 1 as X+X. 616579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { 616679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner if (ShAmt->getValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && 616779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner TLI.isOperationLegal(ISD::ADDE, NVT)) { 616879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 616979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); 617079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); 617179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner LoOps[1] = LoOps[0]; 617279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 617379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 617479980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[1] = HiOps[0]; 617579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner HiOps[2] = Lo.getValue(1); 617679980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 617779980b07dab50da1a8f572f9504674bfa853d484Chris Lattner break; 617879980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 617979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner } 618079980b07dab50da1a8f572f9504674bfa853d484Chris Lattner 6181e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6182348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6183e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 61844759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 61854759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SHL_PARTS, use it. 618605a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 618705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SHL_PARTS, NVT); 618805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 618905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6190348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 61914759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 61924759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 61934759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6194e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 619556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SHL_I64), Node, 619656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*left shift=unsigned*/, Hi); 6197e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 619805a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 6199e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 620005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRA: { 620150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6202348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 620350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { 62048137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRA, 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 6214e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6215348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6216e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 62174759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 62184759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRA_PARTS, use it. 621905a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 622005a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRA_PARTS, NVT); 622105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 622205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6223348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 62244759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 62254759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 62264759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6227e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 622856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRA_I64), Node, 622956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng true/*ashr is signed*/, Hi); 6230e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 623105a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 623205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 623305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng case ISD::SRL: { 623450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // If the target wants custom lowering, do so. 6235348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner SDOperand ShiftAmt = LegalizeOp(Node->getOperand(1)); 623650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { 62378137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); 623850ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner Op = TLI.LowerOperation(Op, DAG); 623950ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner if (Op.Val) { 624050ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // Now that the custom expander is done, expand the result, which is 624150ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner // still VT. 624250ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner ExpandOp(Op, Lo, Hi); 624350ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner break; 624450ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 624550ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner } 624650ec8979047065bd0ff41fac4ffd44f744b77723Chris Lattner 6247e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // If we can emit an efficient shift operation, do so now. 6248348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) 6249e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 62504759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 62514759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner // If this target supports SRL_PARTS, use it. 625205a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TargetLowering::LegalizeAction Action = 625305a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng TLI.getOperationAction(ISD::SRL_PARTS, NVT); 625405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 625505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng Action == TargetLowering::Custom) { 6256348e93c8f7132c6ecbaf5866048e087feb7520e2Chris Lattner ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); 62574759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner break; 62584759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner } 62594759982a2d4ab597fb69d4a1113d0f35e673a4e1Chris Lattner 6260e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner // Otherwise, emit a libcall. 626156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SRL_I64), Node, 626256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*lshr is unsigned*/, Hi); 6263e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner break; 626405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng } 6265e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 6266edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman case ISD::ADD: 62678137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner case ISD::SUB: { 62688137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // If the target wants to custom expand this, let them. 62698137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (TLI.getOperationAction(Node->getOpcode(), VT) == 62708137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner TargetLowering::Custom) { 62718137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner Op = TLI.LowerOperation(Op, DAG); 62728137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner if (Op.Val) { 62738137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Op, Lo, Hi); 62748137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner break; 62758137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 62768137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 62778137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner 62788137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner // Expand the subcomponents. 62798137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 62808137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 62818137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 628279980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 628379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner SDOperand LoOps[2], HiOps[3]; 6284bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[0] = LHSL; 6285bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner LoOps[1] = RHSL; 6286bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[0] = LHSH; 6287bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[1] = RHSH; 6288551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman if (Node->getOpcode() == ISD::ADD) { 628979980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 6290bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 629179980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 6292551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } else { 629379980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 6294bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner HiOps[2] = Lo.getValue(1); 629579980b07dab50da1a8f572f9504674bfa853d484Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 6296551bf3f80058a026b6a128dffd5530019e1df1b9Nate Begeman } 629784f6788044f9b1b47945e98ce23a6cf4d7d32579Chris Lattner break; 62988137c9e41d69943ac84066e6c7a95390b84e29f2Chris Lattner } 6299b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6300b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDC: 6301b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBC: { 6302b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 6303b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 6304b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 6305b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 6306b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6307b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[2] = { LHSL, RHSL }; 6308b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 6309b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6310b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner if (Node->getOpcode() == ISD::ADDC) { 6311b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); 6312b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6313b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); 6314b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } else { 6315b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); 6316b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6317b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); 6318b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6319b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 6320b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 6321b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 6322b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6323b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::ADDE: 6324b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner case ISD::SUBE: { 6325b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Expand the subcomponents. 6326b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LHSL, LHSH, RHSL, RHSH; 6327b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(0), LHSL, LHSH); 6328b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner ExpandOp(Node->getOperand(1), RHSL, RHSH); 6329b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 6330b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand LoOps[3] = { LHSL, RHSL, Node->getOperand(2) }; 6331b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner SDOperand HiOps[3] = { LHSH, RHSH }; 6332b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6333b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Lo = DAG.getNode(Node->getOpcode(), VTList, LoOps, 3); 6334b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner HiOps[2] = Lo.getValue(1); 6335b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner Hi = DAG.getNode(Node->getOpcode(), VTList, HiOps, 3); 6336b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner 6337b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner // Remember that we legalized the flag. 6338b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); 6339b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner break; 6340b429f7303eecc6fe0218d86e2f1321f70473deb4Chris Lattner } 6341c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman case ISD::MUL: { 63427d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner // If the target wants to custom expand this, let them. 63437d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { 63448829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner SDOperand New = TLI.LowerOperation(Op, DAG); 63458829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner if (New.Val) { 63468829dc88a8637fe588e299d96de394afc3ecc528Chris Lattner ExpandOp(New, Lo, Hi); 63477d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner break; 63487d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 63497d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner } 63507d7bffe157c0896cc850ed384dd748aae1a00c7bChris Lattner 63513f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); 63523f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); 6353525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, NVT); 6354525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, NVT); 6355525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 6356c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman SDOperand LL, LH, RL, RH; 6357c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(0), LL, LH); 6358c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman ExpandOp(Node->getOperand(1), RL, RH); 63592e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned OuterBitSize = Op.getValueSizeInBits(); 63602e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman unsigned InnerBitSize = RH.getValueSizeInBits(); 6361525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned LHSSB = DAG.ComputeNumSignBits(Op.getOperand(0)); 6362525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman unsigned RHSSB = DAG.ComputeNumSignBits(Op.getOperand(1)); 63632e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman if (DAG.MaskedValueIsZero(Op.getOperand(0), 63642e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(OuterBitSize, LHSSB)) && 63652e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman DAG.MaskedValueIsZero(Op.getOperand(1), 63662e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman APInt::getHighBitsSet(OuterBitSize, RHSSB))) { 6367525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The inputs are both zero-extended. 6368525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 6369525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a umul_lohi. 6370525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::UMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 6371525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = SDOperand(Lo.Val, 1); 6372525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6373525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6374525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHU) { 6375525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhu+mul. 6376525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 6377525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 6378525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6379525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6380525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 63812e68b6f52d0979575b2f02ed29717d907ba0684cDan Gohman if (LHSSB > InnerBitSize && RHSSB > InnerBitSize) { 6382525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // The input values are both sign-extended. 6383525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasSMUL_LOHI) { 6384525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a smul_lohi. 6385525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::SMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); 6386525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = SDOperand(Lo.Val, 1); 6387525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6388525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6389525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasMULHS) { 6390525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // We can emit a mulhs+mul. 6391525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 6392525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); 6393525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman break; 6394525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6395525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman } 6396525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman if (HasUMUL_LOHI) { 6397525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // Lo,Hi = umul LHS, RHS. 6398525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman SDOperand UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, 6399525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman DAG.getVTList(NVT, NVT), LL, RL); 6400525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Lo = UMulLOHI; 6401525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman Hi = UMulLOHI.getValue(1); 640256eb86806d5d178d42108f17d11098b3e640b996Nate Begeman RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 640356eb86806d5d178d42108f17d11098b3e640b996Nate Begeman LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 640456eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 640556eb86806d5d178d42108f17d11098b3e640b996Nate Begeman Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 6406a89654b1a17478a272af33221e325b7feb9aec1bChris Lattner break; 640756eb86806d5d178d42108f17d11098b3e640b996Nate Begeman } 64088eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen if (HasMULHU) { 64098eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); 64108eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); 64118eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen RH = DAG.getNode(ISD::MUL, NVT, LL, RH); 64128eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen LH = DAG.getNode(ISD::MUL, NVT, LH, RL); 64138eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); 64148eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); 64158eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen break; 64168eadd5a6db79da067c773d1bd1cc13edc07788ccDale Johannesen } 6417c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 64183f4fd0fd644faec87330ef17ebcb93acb74da9c6Evan Cheng 6419525178cdbf00720ea8bce297a7d65b0cca0ab439Dan Gohman // If nothing else, we can make a libcall. 642056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::MUL_I64), Node, 642156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng false/*sign irrelevant*/, Hi); 6422c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman break; 6423c7c16575fea9aeffe8a63ddabe7c3c25f81ed799Nate Begeman } 642456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SDIV: 642556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SDIV_I64), Node, true, Hi); 642656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 642756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UDIV: 642856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UDIV_I64), Node, true, Hi); 642956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 643056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::SREM: 643156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::SREM_I64), Node, true, Hi); 643256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 643356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::UREM: 643456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::UREM_I64), Node, true, Hi); 643556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 64365c9ce1893a4bee65bc05c7c48f11734f55405692Evan Cheng 64371a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FADD: 6438007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::ADD_F32, 6439007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::ADD_F64, 6440007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::ADD_F80, 6441007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::ADD_PPCF128)), 644256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 64431a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 64441a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FSUB: 6445007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::SUB_F32, 6446007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SUB_F64, 6447007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SUB_F80, 6448007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SUB_PPCF128)), 644956966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 64501a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 64511a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FMUL: 6452007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::MUL_F32, 6453007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::MUL_F64, 6454007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::MUL_F80, 6455007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::MUL_PPCF128)), 645656966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 64571a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 64581a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FDIV: 6459007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::DIV_F32, 6460007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::DIV_F64, 6461007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::DIV_F80, 6462007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::DIV_PPCF128)), 646356966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Node, false, Hi); 64641a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 64651a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_EXTEND: 6466ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (VT == MVT::ppcf128) { 6467ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen assert(Node->getOperand(0).getValueType()==MVT::f32 || 6468ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0).getValueType()==MVT::f64); 6469ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen const uint64_t zero = 0; 6470ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (Node->getOperand(0).getValueType()==MVT::f32) 6471ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::FP_EXTEND, MVT::f64, Node->getOperand(0)); 6472ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen else 6473ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = Node->getOperand(0); 6474ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6475ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6476ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 647756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPEXT_F32_F64), Node, true,Hi); 64781a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 64791a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng case ISD::FP_ROUND: 648056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(RTLIB::FPROUND_F64_F32),Node,true,Hi); 64811a8f1fe676f1d83e0da7336e744ebcdcc14a88c4Evan Cheng break; 6482c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio case ISD::FPOWI: 6483007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands Lo = ExpandLibCall(TLI.getLibcallName(GetFPLibCall(VT, RTLIB::POWI_F32, 6484007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_F64, 6485007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_F80, 6486007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::POWI_PPCF128)), 6487c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio Node, false, Hi); 6488c90f08936d717ac6aa767c28cee7af4366eb6921Lauro Ramos Venancio break; 648998ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSQRT: 649098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FSIN: 649198ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng case ISD::FCOS: { 649256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 649398ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng switch(Node->getOpcode()) { 649456966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSQRT: 6495007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, 6496007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); 649756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 649856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FSIN: 6499007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, 6500007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::SIN_F80, RTLIB::SIN_PPCF128); 650156966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 650256966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng case ISD::FCOS: 6503007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, 6504007f9847c44ddbe7fd04cba362b4ec0f0f40964bDuncan Sands RTLIB::COS_F80, RTLIB::COS_PPCF128); 650556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng break; 650698ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng default: assert(0 && "Unreachable!"); 650798ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 650856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, false, Hi); 650998ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng break; 651098ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 6511966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FABS: { 6512f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6513f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen SDOperand Tmp; 6514f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Tmp); 6515f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FABS, NVT, Tmp); 6516f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen // lo = hi==fabs(hi) ? lo : -lo; 6517f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::SELECT_CC, NVT, Hi, Tmp, 6518f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo, DAG.getNode(ISD::FNEG, NVT, Lo), 6519f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen DAG.getCondCode(ISD::SETEQ)); 6520f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6521f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6522966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 6523966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) 6524966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); 6525966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6526966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6527966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); 6528966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6529966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6530966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6531966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6532966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng case ISD::FNEG: { 6533f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen if (VT == MVT::ppcf128) { 6534f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen ExpandOp(Node->getOperand(0), Lo, Hi); 6535f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Lo = DAG.getNode(ISD::FNEG, MVT::f64, Lo); 6536f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen Hi = DAG.getNode(ISD::FNEG, MVT::f64, Hi); 6537f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen break; 6538f646774edd2588f6aa866ceb5e1b921f924a246fDale Johannesen } 6539966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng SDOperand Mask = (VT == MVT::f64) 6540966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) 6541966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng : DAG.getConstantFP(BitsToFloat(1U << 31), VT); 6542966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); 6543966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); 6544966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); 6545966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng if (getTypeAction(NVT) == Expand) 6546966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng ExpandOp(Lo, Lo, Hi); 6547966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng break; 6548966bf24491f7e53238fc4127bb9fcf43e6739586Evan Cheng } 6549912095becac923ff614d7b07728eb345ada67765Evan Cheng case ISD::FCOPYSIGN: { 6550912095becac923ff614d7b07728eb345ada67765Evan Cheng Lo = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); 6551912095becac923ff614d7b07728eb345ada67765Evan Cheng if (getTypeAction(NVT) == Expand) 6552912095becac923ff614d7b07728eb345ada67765Evan Cheng ExpandOp(Lo, Lo, Hi); 6553912095becac923ff614d7b07728eb345ada67765Evan Cheng break; 6554912095becac923ff614d7b07728eb345ada67765Evan Cheng } 65557df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::SINT_TO_FP: 65567df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng case ISD::UINT_TO_FP: { 65577df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; 65587df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng MVT::ValueType SrcVT = Node->getOperand(0).getValueType(); 65596e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen if (VT == MVT::ppcf128 && SrcVT != MVT::i64) { 6560f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t zero = 0; 6561ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen if (isSigned) { 6562ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6563ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6564ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6565ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } else { 6566f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t TwoE32[] = { 0x41f0000000000000LL, 0 }; 6567ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, 6568ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Node->getOperand(0))); 6569ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); 6570ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 65716e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // X>=0 ? {(f64)x, 0} : {(f64)x, 0} + 2^32 6572ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 6573ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstant(0, MVT::i32), 6574ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 6575ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getConstantFP( 6576ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen APFloat(APInt(128, 2, TwoE32)), 6577ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen MVT::ppcf128)), 6578ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Hi, 6579ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen DAG.getCondCode(ISD::SETLT)), 6580ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen Lo, Hi); 6581ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 6582ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen break; 6583ca68aaa0e50c4037c0faa9bfbe7e091087837259Dale Johannesen } 65846e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen if (VT == MVT::ppcf128 && SrcVT == MVT::i64 && !isSigned) { 65856e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // si64->ppcf128 done by libcall, below 6586f6283fd27be06021fbe262341be56331bc67786cDan Gohman static const uint64_t TwoE64[] = { 0x43f0000000000000LL, 0 }; 65876e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SINT_TO_FP, MVT::ppcf128, Node->getOperand(0)), 65886e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 65896e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); 65906e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen // x>=0 ? (ppcf128)(i64)x : (ppcf128)(i64)x + 2^64 65916e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), 65926e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstant(0, MVT::i64), 65936e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, 65946e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getConstantFP( 65956e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen APFloat(APInt(128, 2, TwoE64)), 65966e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen MVT::ppcf128)), 65976e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Hi, 65986e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen DAG.getCondCode(ISD::SETLT)), 65996e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen Lo, Hi); 66006e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen break; 66016e63e092365b763b65cc97a4d2c634443046c15aDale Johannesen } 660264f638df568f2849b485cc50836efc734e367fc7Evan Cheng RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 66037df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (Node->getOperand(0).getValueType() == MVT::i64) { 66047df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 660556966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F32 : RTLIB::UINTTOFP_I64_F32; 660673328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen else if (VT == MVT::f64) 660756966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I64_F64 : RTLIB::UINTTOFP_I64_F64; 6608161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (VT == MVT::f80) { 6609161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen assert(isSigned); 6610161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::SINTTOFP_I64_F80; 6611161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen } 6612161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen else if (VT == MVT::ppcf128) { 661373328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen assert(isSigned); 6614161e897b0fb35d156b2fe720fadabd975b0d6723Dale Johannesen LC = RTLIB::SINTTOFP_I64_PPCF128; 661573328d14acba0144f121b557ce0e1539c6a21a18Dale Johannesen } 66167df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } else { 66177df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (VT == MVT::f32) 661856966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F32 : RTLIB::UINTTOFP_I32_F32; 66197df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng else 662056966225d1eed9f9a6951d2167bfbbec9628c8d6Evan Cheng LC = isSigned ? RTLIB::SINTTOFP_I32_F64 : RTLIB::UINTTOFP_I32_F64; 66217df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 66227df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng 66237df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng // Promote the operand if needed. 66247df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng if (getTypeAction(SrcVT) == Promote) { 66257df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng SDOperand Tmp = PromoteOp(Node->getOperand(0)); 66267df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Tmp = isSigned 66277df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp, 66287df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng DAG.getValueType(SrcVT)) 66297df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng : DAG.getZeroExtendInReg(Tmp, SrcVT); 66307df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng Node = DAG.UpdateNodeOperands(Op, Tmp).Val; 66317df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 66324c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng 66334c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng const char *LibCall = TLI.getLibcallName(LC); 66344c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (LibCall) 66354c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandLibCall(TLI.getLibcallName(LC), Node, isSigned, Hi); 66364c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng else { 66374c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT, 66384c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng Node->getOperand(0)); 66394c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng if (getTypeAction(Lo.getValueType()) == Expand) 66404c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng ExpandOp(Lo, Lo, Hi); 66414c6cfad85e63e2dbe273431bdf20533b495c955dEvan Cheng } 66427df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng break; 66437df28dc9d7160772c3c0aabd72c32830c1bb5e57Evan Cheng } 664498ff3b979af4916ba8a82eda7d77a66cdad31842Evan Cheng } 66453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 664683397363348662e9352455ea1e6e88e7026300a4Chris Lattner // Make sure the resultant values have been legalized themselves, unless this 664783397363348662e9352455ea1e6e88e7026300a4Chris Lattner // is a type that requires multi-step expansion. 664883397363348662e9352455ea1e6e88e7026300a4Chris Lattner if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { 664983397363348662e9352455ea1e6e88e7026300a4Chris Lattner Lo = LegalizeOp(Lo); 665013acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng if (Hi.Val) 665113acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng // Don't legalize the high part if it is expanded to a single node. 665213acce3ef03d29679c2b241bdba6ca015644e8b6Evan Cheng Hi = LegalizeOp(Hi); 665383397363348662e9352455ea1e6e88e7026300a4Chris Lattner } 665405a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng 665505a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng // Remember in a map if the values will be reused later. 665640030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))); 665705a2d568c60b8d547a5ac78f99107c476e6612b5Evan Cheng assert(isNew && "Value already expanded?!?"); 66583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 66593e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 66607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// SplitVectorOp - Given an operand of vector type, break it down into 66617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman/// two smaller values, still of vector type. 6662c7029805ef35ce9805931067b841e6af11db382eChris Lattnervoid SelectionDAGLegalize::SplitVectorOp(SDOperand Op, SDOperand &Lo, 6663c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand &Hi) { 66647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && "Cannot split non-vector type!"); 6665c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 6666e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman unsigned NumElements = MVT::getVectorNumElements(Op.getValueType()); 6667c7029805ef35ce9805931067b841e6af11db382eChris Lattner assert(NumElements > 1 && "Cannot split a single element vector!"); 66685db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 6669e40c7b097354974ebd42c7e5d54440b07b57cc33Dan Gohman MVT::ValueType NewEltVT = MVT::getVectorElementType(Op.getValueType()); 66705db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 66715db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Lo = 1 << Log2_32(NumElements-1); 66725db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned NewNumElts_Hi = NumElements - NewNumElts_Lo; 66735db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 66745db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman MVT::ValueType NewVT_Lo = MVT::getVectorType(NewEltVT, NewNumElts_Lo); 66755db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman MVT::ValueType NewVT_Hi = MVT::getVectorType(NewEltVT, NewNumElts_Hi); 66765db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman 6677c7029805ef35ce9805931067b841e6af11db382eChris Lattner // See if we already split it. 6678c7029805ef35ce9805931067b841e6af11db382eChris Lattner std::map<SDOperand, std::pair<SDOperand, SDOperand> >::iterator I 6679c7029805ef35ce9805931067b841e6af11db382eChris Lattner = SplitNodes.find(Op); 6680c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (I != SplitNodes.end()) { 6681c7029805ef35ce9805931067b841e6af11db382eChris Lattner Lo = I->second.first; 6682c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi = I->second.second; 6683c7029805ef35ce9805931067b841e6af11db382eChris Lattner return; 6684c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6685c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6686c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 6687e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey default: 6688e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 668939833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); 6690e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 6691e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey assert(0 && "Unhandled operation in SplitVectorOp!"); 6692daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner case ISD::UNDEF: 6693daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Lo = DAG.getNode(ISD::UNDEF, NewVT_Lo); 6694daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner Hi = DAG.getNode(ISD::UNDEF, NewVT_Hi); 6695daf9bc8eee3eb1bc992480921f50ef1b760f4159Chris Lattner break; 66967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_PAIR: 66977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 66987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 66997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 67009fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman case ISD::INSERT_VECTOR_ELT: { 67019fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman SplitVectorOp(Node->getOperand(0), Lo, Hi); 67029fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman unsigned Index = cast<ConstantSDNode>(Node->getOperand(2))->getValue(); 67039fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman SDOperand ScalarOp = Node->getOperand(1); 67045db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman if (Index < NewNumElts_Lo) 67055db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Lo, Lo, ScalarOp, 67069fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman DAG.getConstant(Index, TLI.getPointerTy())); 67079fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman else 67085db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Hi, Hi, ScalarOp, 67095db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman DAG.getConstant(Index - NewNumElts_Lo, 67105db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman TLI.getPointerTy())); 67119fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman break; 67129fe4662d9a9e5b346dc053b6a53bc3d096adb77bDan Gohman } 67136c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner case ISD::VECTOR_SHUFFLE: { 67146c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Build the low part. 67156c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand Mask = Node->getOperand(2); 67166c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SmallVector<SDOperand, 8> Ops; 67176c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner MVT::ValueType PtrVT = TLI.getPointerTy(); 67186c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 67196c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // Insert all of the elements from the input that are needed. We use 67206c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // buildvector of extractelement here because the input vectors will have 67216c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner // to be legalized, so this makes the code simpler. 67226c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = 0; i != NewNumElts_Lo; ++i) { 67236c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner unsigned Idx = cast<ConstantSDNode>(Mask.getOperand(i))->getValue(); 67246c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand InVec = Node->getOperand(0); 67256c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 67266c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 67276c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 67286c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67296c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 67306c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 67316c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67326c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &Ops[0], Ops.size()); 67336c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.clear(); 67346c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner 67356c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner for (unsigned i = NewNumElts_Lo; i != NumElements; ++i) { 67366c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner unsigned Idx = cast<ConstantSDNode>(Mask.getOperand(i))->getValue(); 67376c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner SDOperand InVec = Node->getOperand(0); 67386c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner if (Idx >= NumElements) { 67396c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner InVec = Node->getOperand(1); 67406c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Idx -= NumElements; 67416c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67426c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, 67436c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner DAG.getConstant(Idx, PtrVT))); 67446c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67456c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &Ops[0], Ops.size()); 67466c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner break; 67476c9c6800b844771117943c400d0a9a47460a46b9Chris Lattner } 67487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: { 6749bd564bfc63163e31f320c3da9749db70992dc35eChris Lattner SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 67505db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Node->op_begin()+NewNumElts_Lo); 67515db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &LoOps[0], LoOps.size()); 6752c7029805ef35ce9805931067b841e6af11db382eChris Lattner 67535db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumElts_Lo, 67547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 67555db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Hi, &HiOps[0], HiOps.size()); 6756c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6757c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 67587f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: { 67595db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman // FIXME: Handle non-power-of-two vectors? 67607f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned NewNumSubvectors = Node->getNumOperands() / 2; 67617f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (NewNumSubvectors == 1) { 67627f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Lo = Node->getOperand(0); 67637f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Hi = Node->getOperand(1); 67647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } else { 67657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> LoOps(Node->op_begin(), 67667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_begin()+NewNumSubvectors); 67675db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Lo, &LoOps[0], LoOps.size()); 67686595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman 67697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SmallVector<SDOperand, 8> HiOps(Node->op_begin()+NewNumSubvectors, 67707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Node->op_end()); 67715db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Hi, &HiOps[0], HiOps.size()); 67727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 67736595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 67746595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman } 6775c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman case ISD::SELECT: { 6776c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand Cond = Node->getOperand(0); 6777c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 6778c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand LL, LH, RL, RH; 6779c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(1), LL, LH); 6780c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Node->getOperand(2), RL, RH); 6781c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman 6782c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman if (MVT::isVector(Cond.getValueType())) { 6783c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a vector merge. 6784c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SDOperand CL, CH; 6785c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman SplitVectorOp(Cond, CL, CH); 67865db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, CL, LL, RL); 67875db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, CH, LH, RH); 6788c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } else { 6789c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman // Handle a simple select with vector operands. 67905db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, Cond, LL, RL); 67915db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, Cond, LH, RH); 6792c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 6793c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman break; 6794c623096fe227a7705ccac5a5db514b64ccdfe6b2Dan Gohman } 67957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 67967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 67977f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 67987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 67997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 68007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 68017f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 68027f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 68037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 6804826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 68057f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 68067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 6807089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::XOR: 6808089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::UREM: 6809089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::SREM: 6810089617d9e3acc242151a007e7a051ed2fb200b1fDan Gohman case ISD::FREM: { 6811c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand LL, LH, RL, RH; 6812c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(0), LL, LH); 6813c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitVectorOp(Node->getOperand(1), RL, RH); 6814c7029805ef35ce9805931067b841e6af11db382eChris Lattner 68155db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, LL, RL); 68165db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, LH, RH); 6817c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6818c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6819826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOWI: { 6820826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand L, H; 6821826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6822826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 68235db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L, Node->getOperand(1)); 68245db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H, Node->getOperand(1)); 6825826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6826826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 6827826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTTZ: 6828826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTLZ: 6829826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::CTPOP: 6830826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FNEG: 6831826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FABS: 6832826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSQRT: 6833826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FSIN: 6834b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FCOS: 6835b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_SINT: 6836b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::FP_TO_UINT: 6837b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::SINT_TO_FP: 6838b348d18caf834bc26a80e60aa7a2c9b1748734e8Nate Begeman case ISD::UINT_TO_FP: { 6839826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SDOperand L, H; 6840826695281344e3a4c4d44d73dd155107aafd689bDan Gohman SplitVectorOp(Node->getOperand(0), L, H); 6841826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 68425db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L); 68435db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H); 6844826695281344e3a4c4d44d73dd155107aafd689bDan Gohman break; 6845826695281344e3a4c4d44d73dd155107aafd689bDan Gohman } 68467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 68477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 68487f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LD->getChain(); 68497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LD->getBasePtr(); 68507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 68517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 68527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman unsigned Alignment = LD->getAlignment(); 68537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isVolatile = LD->isVolatile(); 68547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 68555db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getLoad(NewVT_Lo, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 68565db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman unsigned IncrementSize = NewNumElts_Lo * MVT::getSizeInBits(NewEltVT)/8; 6857c7029805ef35ce9805931067b841e6af11db382eChris Lattner Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, 68580bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 68597f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SVOffset += IncrementSize; 6860dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 68615db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getLoad(NewVT_Hi, Ch, Ptr, SV, SVOffset, isVolatile, Alignment); 6862c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6863c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Build a factor node to remember that this load is independent of the 6864c7029805ef35ce9805931067b841e6af11db382eChris Lattner // other one. 6865c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), 6866c7029805ef35ce9805931067b841e6af11db382eChris Lattner Hi.getValue(1)); 6867c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6868c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 6869c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); 6870c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6871c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 68727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: { 68737692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // We know the result is a vector. The input may be either a vector or a 68747692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner // scalar value. 687510a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SDOperand InOp = Node->getOperand(0); 687610a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman if (!MVT::isVector(InOp.getValueType()) || 687710a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman MVT::getVectorNumElements(InOp.getValueType()) == 1) { 687810a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // The input is a scalar or single-element vector. 687910a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Lower to a store/load so that it can be split. 688010a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // FIXME: this could be improved probably. 688185dd3be7354f848231362bd70f6517c0e667f95dChris Lattner SDOperand Ptr = DAG.CreateStackTemporary(InOp.getValueType()); 6882bbbbb9c3dd4160990f856854d16a3beaead1f354Dan Gohman FrameIndexSDNode *FI = cast<FrameIndexSDNode>(Ptr.Val); 68837692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner 6884786225adf09e606c795ef68a1f789c12f37869f2Evan Cheng SDOperand St = DAG.getStore(DAG.getEntryNode(), 688569de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman InOp, Ptr, 68863069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 688769de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FI->getIndex()); 688869de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman InOp = DAG.getLoad(Op.getValueType(), St, Ptr, 68893069b8743769527ce7af6cfb6591a2f0fc2faee4Dan Gohman PseudoSourceValue::getFixedStack(), 689069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman FI->getIndex()); 68917692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 689210a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman // Split the vector and convert each of the pieces now. 689310a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman SplitVectorOp(InOp, Lo, Hi); 68945db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Lo = DAG.getNode(ISD::BIT_CONVERT, NewVT_Lo, Lo); 68955db1afb462b048bc10e0003db5a770ed960b2ddfNate Begeman Hi = DAG.getNode(ISD::BIT_CONVERT, NewVT_Hi, Hi); 689610a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman break; 68977692eb4201e2071fb2afddcdaa6ba93b5e6abad4Chris Lattner } 6898c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 6899c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6900c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember in a map if the values will be reused later. 690140030bfa75ae6d72702bc60e964ae2fce8c0f3edChris Lattner bool isNew = 6902c7029805ef35ce9805931067b841e6af11db382eChris Lattner SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; 690310a7aa6dea8d862feda05098d82a7630c80c30d8Dan Gohman assert(isNew && "Value already split?!?"); 6904c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 6905c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6906c7029805ef35ce9805931067b841e6af11db382eChris Lattner 690789b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// ScalarizeVectorOp - Given an operand of single-element vector type 690889b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// (e.g. v1f32), convert it into the equivalent operation that returns a 690989b20c07e9f9539b141c5251ac67cc38afa637d5Dan Gohman/// scalar (e.g. f32) value. 69107f32156bb9c017b71971c52fac892fa7b9b06dd2Dan GohmanSDOperand SelectionDAGLegalize::ScalarizeVectorOp(SDOperand Op) { 69117f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::isVector(Op.getValueType()) && 69127f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman "Bad ScalarizeVectorOp invocation!"); 6913c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDNode *Node = Op.Val; 69147f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman MVT::ValueType NewVT = MVT::getVectorElementType(Op.getValueType()); 69157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(MVT::getVectorNumElements(Op.getValueType()) == 1); 6916c7029805ef35ce9805931067b841e6af11db382eChris Lattner 69177f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // See if we already scalarized it. 69187f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman std::map<SDOperand, SDOperand>::iterator I = ScalarizedNodes.find(Op); 69197f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (I != ScalarizedNodes.end()) return I->second; 6920c7029805ef35ce9805931067b841e6af11db382eChris Lattner 6921c7029805ef35ce9805931067b841e6af11db382eChris Lattner SDOperand Result; 6922c7029805ef35ce9805931067b841e6af11db382eChris Lattner switch (Node->getOpcode()) { 69232332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner default: 6924e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 692539833585556a69de12053ca1e104fe7edfd86cbdDan Gohman Node->dump(&DAG); cerr << "\n"; 6926e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 69277f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(0 && "Unknown vector operation in ScalarizeVectorOp!"); 69287f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::ADD: 69297f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FADD: 69307f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SUB: 69317f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSUB: 69327f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::MUL: 69337f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FMUL: 69347f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SDIV: 69357f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UDIV: 69367f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FDIV: 69377f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SREM: 69387f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::UREM: 69397f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FREM: 6940826695281344e3a4c4d44d73dd155107aafd689bDan Gohman case ISD::FPOW: 69417f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::AND: 69427f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::OR: 69437f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::XOR: 69447f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 6945c7029805ef35ce9805931067b841e6af11db382eChris Lattner NewVT, 69467f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 69477f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(1))); 6948c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 69497f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FNEG: 69507f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FABS: 69517f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSQRT: 69527f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FSIN: 69537f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::FCOS: 69547f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(Node->getOpcode(), 69557f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman NewVT, 69567f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Node->getOperand(0))); 69577f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 69589e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman case ISD::FPOWI: 69599e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Result = DAG.getNode(Node->getOpcode(), 69609e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman NewVT, 69619e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman ScalarizeVectorOp(Node->getOperand(0)), 69629e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman Node->getOperand(1)); 69639e04c82c0ec7c94d82168c07177ff9d1fea5b9d5Dan Gohman break; 69647f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::LOAD: { 69657f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LoadSDNode *LD = cast<LoadSDNode>(Node); 69667f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ch = LegalizeOp(LD->getChain()); // Legalize the chain. 69677f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand Ptr = LegalizeOp(LD->getBasePtr()); // Legalize the pointer. 6968c7029805ef35ce9805931067b841e6af11db382eChris Lattner 69697f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman const Value *SV = LD->getSrcValue(); 69707f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman int SVOffset = LD->getSrcValueOffset(); 69717f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getLoad(NewVT, Ch, Ptr, SV, SVOffset, 69727f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman LD->isVolatile(), LD->getAlignment()); 69737f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman 6974c7029805ef35ce9805931067b841e6af11db382eChris Lattner // Remember that we legalized the chain. 6975c7029805ef35ce9805931067b841e6af11db382eChris Lattner AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); 6976c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 6977c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 69787f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BUILD_VECTOR: 69797f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 69807f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman break; 69817f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::INSERT_VECTOR_ELT: 69827f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Returning the inserted scalar element. 69837f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(1); 6984c7029805ef35ce9805931067b841e6af11db382eChris Lattner break; 69857f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::CONCAT_VECTORS: 69866595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Node->getOperand(0).getValueType() == NewVT && 69876595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman "Concat of non-legal vectors not yet supported!"); 69886595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman Result = Node->getOperand(0); 69896595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 69907f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::VECTOR_SHUFFLE: { 69917f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman // Figure out if the scalar is the LHS or RHS and return it. 69927f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman SDOperand EltNum = Node->getOperand(2).getOperand(0); 69937f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman if (cast<ConstantSDNode>(EltNum)->getValue()) 69947f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(1)); 69957f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman else 69967f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = ScalarizeVectorOp(Node->getOperand(0)); 69972332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 69987f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman } 69997f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::EXTRACT_SUBVECTOR: 70007f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = Node->getOperand(0); 70016595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman assert(Result.getValueType() == NewVT); 70026595635175764f402e7a5e53216c8d46bdce8c28Dan Gohman break; 70037f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::BIT_CONVERT: 70047f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op.getOperand(0)); 7005db3c626eb9e85e9192dbee59ff0c4d143c37c94dEvan Cheng break; 70067f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman case ISD::SELECT: 7007b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), 70087f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(1)), 70097f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman ScalarizeVectorOp(Op.getOperand(2))); 7010b22e35a3c3bec07f5559c1476b3143e0d6d64269Chris Lattner break; 7011c7029805ef35ce9805931067b841e6af11db382eChris Lattner } 7012c7029805ef35ce9805931067b841e6af11db382eChris Lattner 7013c7029805ef35ce9805931067b841e6af11db382eChris Lattner if (TLI.isTypeLegal(NewVT)) 7014c7029805ef35ce9805931067b841e6af11db382eChris Lattner Result = LegalizeOp(Result); 70157f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman bool isNew = ScalarizedNodes.insert(std::make_pair(Op, Result)).second; 70167f32156bb9c017b71971c52fac892fa7b9b06dd2Dan Gohman assert(isNew && "Value already scalarized?"); 7017c7029805ef35ce9805931067b841e6af11db382eChris Lattner return Result; 7018c7029805ef35ce9805931067b841e6af11db382eChris Lattner} 7019c7029805ef35ce9805931067b841e6af11db382eChris Lattner 70203e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 70213e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 70223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 70239c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattnervoid SelectionDAG::Legalize() { 70245e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner if (ViewLegalizeDAGs) viewGraph(); 70255e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner 70263e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 70273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 7028456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner SelectionDAGLegalize(*this).LegalizeDAG(); 70293e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 70303e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 7031