LegalizeDAG.cpp revision ecf42c4720aba6ee315d0166045c54187ac2de4d
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" 1983489bb7700c69b7a4a8da59365c42d3f5c8129bDevang Patel#include "llvm/Analysis/DebugInfo.h" 2069de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman#include "llvm/CodeGen/PseudoSourceValue.h" 2161bbbabe3da27479cc9a3a36e49091a1141ba7a3Evan Cheng#include "llvm/Target/TargetFrameInfo.h" 223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Target/TargetLowering.h" 23e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner#include "llvm/Target/TargetData.h" 243d4ce1108520a4dcf31cb01523e145d286ee64c1Evan Cheng#include "llvm/Target/TargetMachine.h" 250f69b2910810b7c0971a739f18b37fae2a20eca5Chris Lattner#include "llvm/Target/TargetOptions.h" 26adf6a965a321372c640845407195594835921eb4Chris Lattner#include "llvm/CallingConv.h" 273e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner#include "llvm/Constants.h" 28c10305743c313558405079452138f03124e87581Reid Spencer#include "llvm/DerivedTypes.h" 2986e6cb924b85e7a288a4d8bfde5d1a8fb9810c88Bill Wendling#include "llvm/Function.h" 3083489bb7700c69b7a4a8da59365c42d3f5c8129bDevang Patel#include "llvm/GlobalVariable.h" 319adc0abad3c3ed40a268ccbcee0c74cb9e1359feOwen Anderson#include "llvm/LLVMContext.h" 325e46a19ec848cd4fc9649bd5170c43d9e657668cChris Lattner#include "llvm/Support/CommandLine.h" 33993aacedfdc3f156f667b4efa280ee79eab3b898David Greene#include "llvm/Support/Debug.h" 34e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach#include "llvm/Support/ErrorHandling.h" 35dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands#include "llvm/Support/MathExtras.h" 3645cfe545ec8177262dabc70580ce05feaa1c3880Chris Lattner#include "llvm/Support/raw_ostream.h" 377971514755a08ec156a1b9c0f7f05d67919c56b7Chris Lattner#include "llvm/ADT/DenseMap.h" 38f06f35e30b4c4d7db304f717a3d4dc6595fbd078Chris Lattner#include "llvm/ADT/SmallVector.h" 3900755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner#include "llvm/ADT/SmallPtrSet.h" 403e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerusing namespace llvm; 413e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 423e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner//===----------------------------------------------------------------------===// 433e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// SelectionDAGLegalize - This takes an arbitrary SelectionDAG as input and 443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// hacks on it until the target machine can handle it. This involves 453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating value sizes the machine cannot handle (promoting small sizes to 463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// large sizes or splitting up large values into small values) as well as 473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// eliminating operations the machine cannot handle. 483e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// This code also does a small amount of optimization and recognition of idioms 503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// as part of its processing. For example, if a target does not support a 513e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 'setcc' instruction efficiently, but does support 'brcc' instruction, this 523e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// will attempt merge setcc and brc instructions into brcc's. 533e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner/// 543e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnernamespace { 556726b6d75a8b679068a58cb954ba97cf9d1690baNick Lewyckyclass SelectionDAGLegalize { 5655e59c186303ff02c0be7429da3b1b36c347f164Dan Gohman const TargetMachine &TM; 57d858e90f039f5fcdc2fa93035e911a5a9505cc50Dan Gohman const TargetLowering &TLI; 583e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner SelectionDAG &DAG; 5998a366d547772010e94609e4584489b3e5ce0043Bill Wendling CodeGenOpt::Level OptLevel; 603e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Libcall insertion helpers. 62fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// LastCALLSEQ_END - This keeps track of the CALLSEQ_END node that has been 646831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// legalized. We use this to ensure that calls are properly serialized 656831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// against each other, including inserted libcalls. 66475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LastCALLSEQ_END; 67fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 686831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// IsLegalizingCall - This member is used *only* for purposes of providing 69fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel /// helpful assertions that a libcall isn't created while another call is 706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner /// being legalized (which could lead to non-serialized call sequences). 716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool IsLegalizingCall; 72fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 733e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner enum LegalizeAction { 7468a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Legal, // The target natively supports this operation. 7568a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner Promote, // This operation should be executed in a larger type. 76d74ea2bbd8bb630331f35ead42d385249bd42af8Chris Lattner Expand // Try to expand this to other ops, otherwise use a libcall. 773e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner }; 78fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 793e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// ValueTypeActions - This is a bitvector that contains two bits for each 803e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// value type, where the two bits correspond to the LegalizeAction enum. 813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// This can be queried with "getTypeAction(VT)". 8268a17febc70d9beb5353454e0c6d136ca1e87605Chris Lattner TargetLowering::ValueTypeActionImpl ValueTypeActions; 833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 843e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// LegalizedNodes - For nodes that are of legal width, and that have more 853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// than one use, this map indicates what regularized operand to use. This 863e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// allows us to avoid legalizing the same thing more than once. 87475871a144eb604ddaf37503397ba0941442e5fbDan Gohman DenseMap<SDValue, SDValue> LegalizedNodes; 883e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 89475871a144eb604ddaf37503397ba0941442e5fbDan Gohman void AddLegalizedOperand(SDValue From, SDValue To) { 9069a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(From, To)); 9169a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner // If someone requests legalization of the new node, return itself. 9269a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner if (From != To) 9369a889eb35d59a10e78a07cc26d41cbab31eddceChris Lattner LegalizedNodes.insert(std::make_pair(To, To)); 948afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner } 958afc48e44ad8868c1d41511db645e2ba1a4b894eChris Lattner 963e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnerpublic: 971fde9c5f771922f12fefc903850c4eca303297d9Eli Friedman SelectionDAGLegalize(SelectionDAG &DAG, CodeGenOpt::Level ol); 983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 993e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// getTypeAction - Return how we should legalize values of this type, either 1003e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// it is already legal or we need to expand it into multiple registers of 1013e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// smaller integer type, or we need to promote it to a larger type. 102e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson LegalizeAction getTypeAction(EVT VT) const { 103aafe626c7fa9f99150cccd27d0151a2cf7c8c00bChris Lattner return (LegalizeAction)ValueTypeActions.getTypeAction(VT); 1043e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1053e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1063e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// isTypeLegal - Return true if this type is legal on this target. 1073e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 108e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson bool isTypeLegal(EVT VT) const { 1093e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return getTypeAction(VT) == Legal; 1103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 1113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1123e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner void LegalizeDAG(); 1133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 114456a93afcec7740c45cafa8354317f7b17987a6dChris Lattnerprivate: 115c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// LegalizeOp - We know that the specified value has a legal type. 116c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// Recursively ensure that the operands have legal types, then return the 117c7029805ef35ce9805931067b841e6af11db382eChris Lattner /// result. 118475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LegalizeOp(SDValue O); 119fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 1207ef3d178660b82d1571757e49f44b004d772a116Eli Friedman SDValue OptimizeFloatStore(StoreSDNode *ST); 1217ef3d178660b82d1571757e49f44b004d772a116Eli Friedman 1226867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman /// PerformInsertVectorEltInMemory - Some target cannot handle a variable 1236867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman /// insertion index for the INSERT_VECTOR_ELT instruction. In this case, it 1246867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman /// is necessary to spill the vector being inserted into to memory, perform 1256867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman /// the insert there, and then read the result back. 126475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue PerformInsertVectorEltInMemory(SDValue Vec, SDValue Val, 1273f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman SDValue Idx, DebugLoc dl); 1283f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman SDValue ExpandINSERT_VECTOR_ELT(SDValue Vec, SDValue Val, 1293f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman SDValue Idx, DebugLoc dl); 130826695281344e3a4c4d44d73dd155107aafd689bDan Gohman 1315a5ca1519e04310f585197c20e7ae584b7f2d11fNate Begeman /// ShuffleWithNarrowerEltType - Return a vector shuffle operation which 1325a5ca1519e04310f585197c20e7ae584b7f2d11fNate Begeman /// performs the same shuffe in terms of order or result bytes, but on a type 1335a5ca1519e04310f585197c20e7ae584b7f2d11fNate Begeman /// whose vector element type is narrower than the original shuffle type. 1345a5ca1519e04310f585197c20e7ae584b7f2d11fNate Begeman /// e.g. <v4i32> <0, 1, 0, 1> -> v8i16 <0, 1, 2, 3, 0, 1, 2, 3> 135e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue ShuffleWithNarrowerEltType(EVT NVT, EVT VT, DebugLoc dl, 1366e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach SDValue N1, SDValue N2, 1375a5ca1519e04310f585197c20e7ae584b7f2d11fNate Begeman SmallVectorImpl<int> &Mask) const; 138fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 139c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner bool LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 14000755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo); 1416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 142e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson void LegalizeSetCCCondCode(EVT VT, SDValue &LHS, SDValue &RHS, SDValue &CC, 143775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling DebugLoc dl); 144fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 14547b41f7e20b6af7aaaf0e050200102d55d038b9dEli Friedman SDValue ExpandLibCall(RTLIB::Libcall LC, SDNode *Node, bool isSigned); 146e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach std::pair<SDValue, SDValue> ExpandChainLibCall(RTLIB::Libcall LC, 147e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach SDNode *Node, bool isSigned); 148f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman SDValue ExpandFPLibCall(SDNode *Node, RTLIB::Libcall Call_F32, 149f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman RTLIB::Libcall Call_F64, RTLIB::Libcall Call_F80, 150f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman RTLIB::Libcall Call_PPCF128); 1518983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov SDValue ExpandIntLibCall(SDNode *Node, bool isSigned, 1528983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov RTLIB::Libcall Call_I8, 1538983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov RTLIB::Libcall Call_I16, 1548983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov RTLIB::Libcall Call_I32, 1558983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov RTLIB::Libcall Call_I64, 156f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman RTLIB::Libcall Call_I128); 157475871a144eb604ddaf37503397ba0941442e5fbDan Gohman 158e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue EmitStackConvert(SDValue SrcOp, EVT SlotVT, EVT DestVT, DebugLoc dl); 159475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ExpandBUILD_VECTOR(SDNode *Node); 160475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ExpandSCALAR_TO_VECTOR(SDNode *Node); 1614bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman void ExpandDYNAMIC_STACKALLOC(SDNode *Node, 1624bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SmallVectorImpl<SDValue> &Results); 1634bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue ExpandFCOPYSIGN(SDNode *Node); 164e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue ExpandLegalINT_TO_FP(bool isSigned, SDValue LegalOp, EVT DestVT, 165af435274e56af687b51f33b5bc6f005fe99ad46fDale Johannesen DebugLoc dl); 166e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue PromoteLegalINT_TO_FP(SDValue LegalOp, EVT DestVT, bool isSigned, 167af435274e56af687b51f33b5bc6f005fe99ad46fDale Johannesen DebugLoc dl); 168e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson SDValue PromoteLegalFP_TO_INT(SDValue LegalOp, EVT DestVT, bool isSigned, 169af435274e56af687b51f33b5bc6f005fe99ad46fDale Johannesen DebugLoc dl); 170475871a144eb604ddaf37503397ba0941442e5fbDan Gohman 1718a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen SDValue ExpandBSWAP(SDValue Op, DebugLoc dl); 1728a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen SDValue ExpandBitCount(unsigned Opc, SDValue Op, DebugLoc dl); 173475871a144eb604ddaf37503397ba0941442e5fbDan Gohman 1743d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman SDValue ExpandExtractFromVectorThroughStack(SDValue Op); 1757ef3d178660b82d1571757e49f44b004d772a116Eli Friedman SDValue ExpandVectorBuildThroughStack(SDNode* Node); 1768c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman 177e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach std::pair<SDValue, SDValue> ExpandAtomic(SDNode *Node); 178e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach 1798c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman void ExpandNode(SDNode *Node, SmallVectorImpl<SDValue> &Results); 1808c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman void PromoteNode(SDNode *Node, SmallVectorImpl<SDValue> &Results); 1813e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner}; 1823e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 1833e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 1845a5ca1519e04310f585197c20e7ae584b7f2d11fNate Begeman/// ShuffleWithNarrowerEltType - Return a vector shuffle operation which 1855a5ca1519e04310f585197c20e7ae584b7f2d11fNate Begeman/// performs the same shuffe in terms of order or result bytes, but on a type 1865a5ca1519e04310f585197c20e7ae584b7f2d11fNate Begeman/// whose vector element type is narrower than the original shuffle type. 1879008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman/// e.g. <v4i32> <0, 1, 0, 1> -> v8i16 <0, 1, 2, 3, 0, 1, 2, 3> 1886e9926108a69efbc11f1cadf947e98500e4d4228Jim GrosbachSDValue 1896e9926108a69efbc11f1cadf947e98500e4d4228Jim GrosbachSelectionDAGLegalize::ShuffleWithNarrowerEltType(EVT NVT, EVT VT, DebugLoc dl, 1905a5ca1519e04310f585197c20e7ae584b7f2d11fNate Begeman SDValue N1, SDValue N2, 1919008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman SmallVectorImpl<int> &Mask) const { 1925a5ca1519e04310f585197c20e7ae584b7f2d11fNate Begeman unsigned NumMaskElts = VT.getVectorNumElements(); 1935a5ca1519e04310f585197c20e7ae584b7f2d11fNate Begeman unsigned NumDestElts = NVT.getVectorNumElements(); 1949008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman unsigned NumEltsGrowth = NumDestElts / NumMaskElts; 1959008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman 1969008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman assert(NumEltsGrowth && "Cannot promote to vector type with fewer elts!"); 1979008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman 1989008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman if (NumEltsGrowth == 1) 1999008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman return DAG.getVectorShuffle(NVT, dl, N1, N2, &Mask[0]); 2006e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach 2019008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman SmallVector<int, 8> NewMask; 2025a5ca1519e04310f585197c20e7ae584b7f2d11fNate Begeman for (unsigned i = 0; i != NumMaskElts; ++i) { 2039008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman int Idx = Mask[i]; 2049008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman for (unsigned j = 0; j != NumEltsGrowth; ++j) { 2056e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach if (Idx < 0) 2069008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman NewMask.push_back(-1); 2079008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman else 2089008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman NewMask.push_back(Idx * NumEltsGrowth + j); 2094352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner } 21015684b29552393553524171bff1913e750f390f8Rafael Espindola } 2115a5ca1519e04310f585197c20e7ae584b7f2d11fNate Begeman assert(NewMask.size() == NumDestElts && "Non-integer NumEltsGrowth?"); 2129008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman assert(TLI.isShuffleMaskLegal(NewMask, NVT) && "Shuffle not legal?"); 2139008ca6b6b4f638cfafccb593cbc5b1d3f5ab877Nate Begeman return DAG.getVectorShuffle(NVT, dl, N1, N2, &NewMask[0]); 2144352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 2154352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 2165aa4977fba97e816b5735f0bc53f16a46b24de63Bill WendlingSelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag, 2171fde9c5f771922f12fefc903850c4eca303297d9Eli Friedman CodeGenOpt::Level ol) 21855e59c186303ff02c0be7429da3b1b36c347f164Dan Gohman : TM(dag.getTarget()), TLI(dag.getTargetLoweringInfo()), 21955e59c186303ff02c0be7429da3b1b36c347f164Dan Gohman DAG(dag), OptLevel(ol), 2201fde9c5f771922f12fefc903850c4eca303297d9Eli Friedman ValueTypeActions(TLI.getValueTypeActions()) { 221825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson assert(MVT::LAST_VALUETYPE <= MVT::MAX_ALLOWED_VALUETYPE && 2223e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner "Too many value types for ValueTypeActions to hold!"); 2233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2253e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattnervoid SelectionDAGLegalize::LegalizeDAG() { 2266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LastCALLSEQ_END = DAG.getEntryNode(); 2276831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 228e5ab34e05d701da042619bf540046efc3c7bc41fMon P Wang 229ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // The legalize process is inherently a bottom-up recursive process (users 230ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // legalize their uses before themselves). Given infinite stack space, we 231ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // could just start legalizing on the root and traverse the whole graph. In 232ab510a76d6fed412f2dbbb29b3e123eef34f9c0aChris Lattner // practice however, this causes us to run out of stack space on large basic 23332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // blocks. To avoid this problem, compute an ordering of the nodes where each 23432fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // node is only legalized after all of its operands are legalized. 235f06c835f769aa1cf67801ed1f6bd366a447c18b1Dan Gohman DAG.AssignTopologicalOrder(); 236f06c835f769aa1cf67801ed1f6bd366a447c18b1Dan Gohman for (SelectionDAG::allnodes_iterator I = DAG.allnodes_begin(), 2377896c9f436a4eda5ec15e882a7505ba482a2fcd0Chris Lattner E = prior(DAG.allnodes_end()); I != llvm::next(E); ++I) 238b5da3f6f98b28afc0c62572c164ffccb4004827fEli Friedman LegalizeOp(SDValue(I, 0)); 23932fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner 24032fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner // Finally, it's possible the root changed. Get the new root. 241475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue OldRoot = DAG.getRoot(); 24232fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); 24332fca00a23a9872c31999d054b4dd7c724276d9dChris Lattner DAG.setRoot(LegalizedNodes[OldRoot]); 2443e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2453e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner LegalizedNodes.clear(); 2463e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2473e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner // Remove dead nodes now. 248190a418bf6b49a4ef1c1980229a2f0d516e8a2cdChris Lattner DAG.RemoveDeadNodes(); 2493e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 2503e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 2516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 2526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// FindCallEndFromCallStart - Given a chained node that is part of a call 2536831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_END node that terminates the call sequence. 2546831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallEndFromCallStart(SDNode *Node) { 2556831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_END) 2566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Node; 2576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->use_empty()) 2586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; // No CallSeqEnd 259fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 2606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // The chain is usually at the end. 261475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue TheChain(Node, Node->getNumValues()-1); 262825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (TheChain.getValueType() != MVT::Other) { 2636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Sometimes it's at the beginning. 264475871a144eb604ddaf37503397ba0941442e5fbDan Gohman TheChain = SDValue(Node, 0); 265825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (TheChain.getValueType() != MVT::Other) { 2666831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Otherwise, hunt for it. 2676831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) 268825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (Node->getValueType(i) == MVT::Other) { 269475871a144eb604ddaf37503397ba0941442e5fbDan Gohman TheChain = SDValue(Node, i); 2706831a815999dde4cf801e2076e66b4943964daf2Chris Lattner break; 2716831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 272fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 273fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel // Otherwise, we walked into a node without a chain. 274825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (TheChain.getValueType() != MVT::Other) 2756831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 2766831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 2776831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 278fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 2796831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (SDNode::use_iterator UI = Node->use_begin(), 2806831a815999dde4cf801e2076e66b4943964daf2Chris Lattner E = Node->use_end(); UI != E; ++UI) { 281fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 2826831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Make sure to only follow users of our token chain. 2838968450305c28444edc3c272d8752a8db0c2f34aDan Gohman SDNode *User = *UI; 2846831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) 2856831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (User->getOperand(i) == TheChain) 2866831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (SDNode *Result = FindCallEndFromCallStart(User)) 2876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 2886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 2896831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return 0; 2906831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 2916831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 292fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel/// FindCallStartFromCallEnd - Given a chained node that is part of a call 2936831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// sequence, find the CALLSEQ_START node that initiates the call sequence. 2946831a815999dde4cf801e2076e66b4943964daf2Chris Lattnerstatic SDNode *FindCallStartFromCallEnd(SDNode *Node) { 2956831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(Node && "Didn't find callseq_start for a call??"); 2966831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; 297fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 298825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson assert(Node->getOperand(0).getValueType() == MVT::Other && 2996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Node doesn't have a token chain argument!"); 300ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif return FindCallStartFromCallEnd(Node->getOperand(0).getNode()); 3016831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to 304fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel/// see if any uses can reach Dest. If no dest operands can get to dest, 3056831a815999dde4cf801e2076e66b4943964daf2Chris Lattner/// legalize them, legalize ourself, and return false, otherwise, return true. 306c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 307c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// Keep track of the nodes we fine that actually do lead to Dest in 308c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// NodesLeadingTo. This avoids retraversing them exponential number of times. 309c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner/// 310c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattnerbool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, 31100755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner SmallPtrSet<SDNode*, 32> &NodesLeadingTo) { 3126831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (N == Dest) return true; // N certainly leads to Dest :) 313fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 314c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // If we've already processed this node and it does lead to Dest, there is no 315c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner // need to reprocess it. 316c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (NodesLeadingTo.count(N)) return true; 317fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 3186831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the first result of this node has been already legalized, then it cannot 3196831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // reach N. 32074807f2520715056be399a2bc59dfc8b6f8f3eb2Eli Friedman if (LegalizedNodes.count(SDValue(N, 0))) return false; 321fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 3226831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node has not already been legalized. Check and legalize all 3236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // operands. If none lead to Dest, then we can legalize this node. 3246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner bool OperandsLeadToDest = false; 3256831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) 3266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner OperandsLeadToDest |= // If an operand leads to Dest, so do we. 3276e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach LegalizeAllNodesNotLeadingTo(N->getOperand(i).getNode(), Dest, 3286e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach NodesLeadingTo); 3296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 330c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner if (OperandsLeadToDest) { 331c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo.insert(N); 332c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner return true; 333c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 3346831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Okay, this node looks safe, legalize it and return false. 336b5da3f6f98b28afc0c62572c164ffccb4004827fEli Friedman LegalizeOp(SDValue(N, 0)); 3376831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return false; 3386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner} 3396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 3409f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// ExpandConstantFP - Expands the ConstantFP node to an integer constant or 3419f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng/// a load from the constant pool. 342475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanstatic SDValue ExpandConstantFP(ConstantFPSDNode *CFP, bool UseCP, 3430d137d7f35fba98f668098b3badf644efacf0e08Dan Gohman SelectionDAG &DAG, const TargetLowering &TLI) { 344004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng bool Extend = false; 34533c960f523f2308482d5b2816af46a7ec90a6d3dDale Johannesen DebugLoc dl = CFP->getDebugLoc(); 346004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 347004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // If a FP immediate is precise when represented as a float and if the 348004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // target can do an extending load from float to double, we put it into 349004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng // the constant pool as a float, even if it's is statically typed as a 350aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner // double. This shrinks FP constants and canonicalizes them for targets where 351aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner // an FP extending load is the same cost as a normal load (such as on the x87 352aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner // fp stack or PPC FP unit). 353e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = CFP->getValueType(0); 3544fbd796a1251a27e6590765a0a34876f436a0af9Dan Gohman ConstantFP *LLVMC = const_cast<ConstantFP*>(CFP->getConstantFPValue()); 3559f87788040786b1bc6530763e4cf7e105bfb2924Evan Cheng if (!UseCP) { 356825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson assert((VT == MVT::f64 || VT == MVT::f32) && "Invalid type expansion"); 3577111b02c734c992b8c97d9918118768026dad79eDale Johannesen return DAG.getConstant(LLVMC->getValueAPF().bitcastToAPInt(), 358825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson (VT == MVT::f64) ? MVT::i64 : MVT::i32); 359279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng } 360279101eb1ac61e2d5b83d5bdcc5be56e710d2cd7Evan Cheng 361e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OrigVT = VT; 362e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SVT = VT; 363825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson while (SVT != MVT::f32) { 364825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson SVT = (MVT::SimpleValueType)(SVT.getSimpleVT().SimpleTy - 1); 3657720cb3823d5b5868f9b88b0127277820edcb562Dan Gohman if (ConstantFPSDNode::isValueValidForType(SVT, CFP->getValueAPF()) && 366ef12057737229452c17983faa20857dba441ef05Evan Cheng // Only do this if the target has a native EXTLOAD instruction from 367ef12057737229452c17983faa20857dba441ef05Evan Cheng // smaller type. 3680329466b6b4927f4e6f5d144891fef06a027fec5Evan Cheng TLI.isLoadExtLegal(ISD::EXTLOAD, SVT) && 369aa2acbbbf06348f20274f4eeb77f9761c654a589Chris Lattner TLI.ShouldShrinkFPConstant(OrigVT)) { 37023b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson const Type *SType = SVT.getTypeForEVT(*DAG.getContext()); 371baf3c404409d5e47b13984a7f95bfbd6d1f2e79eOwen Anderson LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC, SType)); 372ef12057737229452c17983faa20857dba441ef05Evan Cheng VT = SVT; 373ef12057737229452c17983faa20857dba441ef05Evan Cheng Extend = true; 374ef12057737229452c17983faa20857dba441ef05Evan Cheng } 375004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng } 376004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 377475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); 3781606e8e4cd937e6de6681f686c266cf61722d972Evan Cheng unsigned Alignment = cast<ConstantPoolSDNode>(CPIdx)->getAlignment(); 379ef12057737229452c17983faa20857dba441ef05Evan Cheng if (Extend) 380bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng return DAG.getExtLoad(ISD::EXTLOAD, OrigVT, dl, 381bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng DAG.getEntryNode(), 38285ca1066328639119f94c47a83b698c48b84ebb0Chris Lattner CPIdx, MachinePointerInfo::getConstantPool(), 38385ca1066328639119f94c47a83b698c48b84ebb0Chris Lattner VT, false, false, Alignment); 38433c960f523f2308482d5b2816af46a7ec90a6d3dDale Johannesen return DAG.getLoad(OrigVT, dl, DAG.getEntryNode(), CPIdx, 38585ca1066328639119f94c47a83b698c48b84ebb0Chris Lattner MachinePointerInfo::getConstantPool(), false, false, 3861e559443a17d1b335f697551c6263ba60d5dd827David Greene Alignment); 387004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng} 388004952140f3cf92ee098c2c5b8cdee1449bdc2edEvan Cheng 389f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedStore - Expands an unaligned store to 2 half-size stores. 390f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 391475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue ExpandUnalignedStore(StoreSDNode *ST, SelectionDAG &DAG, 3920d137d7f35fba98f668098b3badf644efacf0e08Dan Gohman const TargetLowering &TLI) { 393475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Chain = ST->getChain(); 394475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = ST->getBasePtr(); 395475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Val = ST->getValue(); 396e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Val.getValueType(); 397907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int Alignment = ST->getAlignment(); 398907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen int SVOffset = ST->getSrcValueOffset(); 399bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen DebugLoc dl = ST->getDebugLoc(); 40083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ST->getMemoryVT().isFloatingPoint() || 40183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands ST->getMemoryVT().isVector()) { 40223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT intVT = EVT::getIntegerVT(*DAG.getContext(), VT.getSizeInBits()); 40305e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands if (TLI.isTypeLegal(intVT)) { 40405e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands // Expand to a bitconvert of the value to the integer type of the 40505e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands // same size, then a (misaligned) int store. 40605e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands // FIXME: Does not handle truncating floating point stores! 407bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen SDValue Result = DAG.getNode(ISD::BIT_CONVERT, dl, intVT, Val); 408bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen return DAG.getStore(Chain, dl, Result, Ptr, ST->getSrcValue(), 4091e559443a17d1b335f697551c6263ba60d5dd827David Greene SVOffset, ST->isVolatile(), ST->isNonTemporal(), 4101e559443a17d1b335f697551c6263ba60d5dd827David Greene Alignment); 41105e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands } else { 41205e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands // Do a (aligned) store to a stack slot, then copy from the stack slot 41305e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands // to the final destination using (unaligned) integer loads and stores. 414e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT StoredVT = ST->getMemoryVT(); 415e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT RegVT = 416adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng TLI.getRegisterType(*DAG.getContext(), 417adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng EVT::getIntegerVT(*DAG.getContext(), 418adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng StoredVT.getSizeInBits())); 41905e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands unsigned StoredBytes = StoredVT.getSizeInBits() / 8; 42005e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands unsigned RegBytes = RegVT.getSizeInBits() / 8; 42105e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands unsigned NumRegs = (StoredBytes + RegBytes - 1) / RegBytes; 42205e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands 423fd6673cf7fd5c0c1e6817e5fcf460a289712ee57Duncan Sands // Make sure the stack slot is also aligned for the register type. 424fd6673cf7fd5c0c1e6817e5fcf460a289712ee57Duncan Sands SDValue StackPtr = DAG.CreateStackTemporary(StoredVT, RegVT); 425fd6673cf7fd5c0c1e6817e5fcf460a289712ee57Duncan Sands 426fd6673cf7fd5c0c1e6817e5fcf460a289712ee57Duncan Sands // Perform the original store, only redirected to the stack slot. 427fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel SDValue Store = DAG.getTruncStore(Chain, dl, 428ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Val, StackPtr, MachinePointerInfo(), 429ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner StoredVT, false, false, 0); 43005e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands SDValue Increment = DAG.getConstant(RegBytes, TLI.getPointerTy()); 43105e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands SmallVector<SDValue, 8> Stores; 43205e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands unsigned Offset = 0; 43305e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands 43405e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands // Do all but one copies using the full register width. 43505e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands for (unsigned i = 1; i < NumRegs; i++) { 43605e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands // Load one integer register's worth from the stack slot. 437ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner SDValue Load = DAG.getLoad(RegVT, dl, Store, StackPtr, 438ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MachinePointerInfo(), 4391e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, 0); 44005e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands // Store it to the final location. Remember the store. 441bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen Stores.push_back(DAG.getStore(Load.getValue(1), dl, Load, Ptr, 442ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner ST->getPointerInfo().getWithOffset(Offset), 4431e559443a17d1b335f697551c6263ba60d5dd827David Greene ST->isVolatile(), ST->isNonTemporal(), 44405e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands MinAlign(ST->getAlignment(), Offset))); 44505e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands // Increment the pointers. 44605e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands Offset += RegBytes; 447bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen StackPtr = DAG.getNode(ISD::ADD, dl, StackPtr.getValueType(), StackPtr, 44805e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands Increment); 449bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, Increment); 45005e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands } 45105e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands 452fd6673cf7fd5c0c1e6817e5fcf460a289712ee57Duncan Sands // The last store may be partial. Do a truncating store. On big-endian 453fd6673cf7fd5c0c1e6817e5fcf460a289712ee57Duncan Sands // machines this requires an extending load from the stack slot to ensure 454fd6673cf7fd5c0c1e6817e5fcf460a289712ee57Duncan Sands // that the bits are in the right place. 455adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng EVT MemVT = EVT::getIntegerVT(*DAG.getContext(), 456adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng 8 * (StoredBytes - Offset)); 457fd6673cf7fd5c0c1e6817e5fcf460a289712ee57Duncan Sands 458fd6673cf7fd5c0c1e6817e5fcf460a289712ee57Duncan Sands // Load from the stack slot. 459bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng SDValue Load = DAG.getExtLoad(ISD::EXTLOAD, RegVT, dl, Store, StackPtr, 4601e559443a17d1b335f697551c6263ba60d5dd827David Greene NULL, 0, MemVT, false, false, 0); 46105e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands 462bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen Stores.push_back(DAG.getTruncStore(Load.getValue(1), dl, Load, Ptr, 46305e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands ST->getSrcValue(), SVOffset + Offset, 464fd6673cf7fd5c0c1e6817e5fcf460a289712ee57Duncan Sands MemVT, ST->isVolatile(), 4651e559443a17d1b335f697551c6263ba60d5dd827David Greene ST->isNonTemporal(), 46605e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands MinAlign(ST->getAlignment(), Offset))); 46705e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands // The order of the stores doesn't matter - say it with a TokenFactor. 468825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, &Stores[0], 46905e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands Stores.size()); 47005e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands } 471907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 47283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(ST->getMemoryVT().isInteger() && 47383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands !ST->getMemoryVT().isVector() && 474907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen "Unaligned store of unknown type."); 475f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Get the half-size VT 476bceddbdc919fc2ca7bc8c3911586ba93367686f0Ken Dyck EVT NewStoredVT = ST->getMemoryVT().getHalfSizedIntegerVT(*DAG.getContext()); 47783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands int NumBits = NewStoredVT.getSizeInBits(); 478f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio int IncrementSize = NumBits / 8; 479f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 480f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Divide the stored value in two parts. 481475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 482475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo = Val; 483bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen SDValue Hi = DAG.getNode(ISD::SRL, dl, VT, Val, ShiftAmount); 484f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 485f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Store the two parts 486475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Store1, Store2; 487bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen Store1 = DAG.getTruncStore(Chain, dl, TLI.isLittleEndian()?Lo:Hi, Ptr, 488f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset, NewStoredVT, 4891e559443a17d1b335f697551c6263ba60d5dd827David Greene ST->isVolatile(), ST->isNonTemporal(), Alignment); 490bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 491f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 492dc84650679b6330e0fcdd4cf8bc2a351387db7caDuncan Sands Alignment = MinAlign(Alignment, IncrementSize); 493bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen Store2 = DAG.getTruncStore(Chain, dl, TLI.isLittleEndian()?Hi:Lo, Ptr, 494f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ST->getSrcValue(), SVOffset + IncrementSize, 4951e559443a17d1b335f697551c6263ba60d5dd827David Greene NewStoredVT, ST->isVolatile(), ST->isNonTemporal(), 4961e559443a17d1b335f697551c6263ba60d5dd827David Greene Alignment); 497f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 498825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Store1, Store2); 499f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 500f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 501f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio/// ExpandUnalignedLoad - Expands an unaligned load to 2 half-size loads. 502f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venanciostatic 503475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue ExpandUnalignedLoad(LoadSDNode *LD, SelectionDAG &DAG, 504e9530ecae4897fe8157bd4d7616043bd8c0484e2Dan Gohman const TargetLowering &TLI) { 505475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Chain = LD->getChain(); 506475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = LD->getBasePtr(); 507e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = LD->getValueType(0); 508e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT LoadedVT = LD->getMemoryVT(); 509bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen DebugLoc dl = LD->getDebugLoc(); 51083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (VT.isFloatingPoint() || VT.isVector()) { 51123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT intVT = EVT::getIntegerVT(*DAG.getContext(), LoadedVT.getSizeInBits()); 51205e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands if (TLI.isTypeLegal(intVT)) { 51305e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands // Expand to a (misaligned) integer load of the same size, 51405e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands // then bitconvert to floating point or vector. 515ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner SDValue newLoad = DAG.getLoad(intVT, dl, Chain, Ptr, LD->getPointerInfo(), 516ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner LD->isVolatile(), 5171e559443a17d1b335f697551c6263ba60d5dd827David Greene LD->isNonTemporal(), LD->getAlignment()); 518bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen SDValue Result = DAG.getNode(ISD::BIT_CONVERT, dl, LoadedVT, newLoad); 51905e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands if (VT.isFloatingPoint() && LoadedVT != VT) 520bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, dl, VT, Result); 521907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen 52205e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands SDValue Ops[] = { Result, Chain }; 523bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen return DAG.getMergeValues(Ops, 2, dl); 524ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner } 525ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 526ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Copy the value to a (aligned) stack slot using (unaligned) integer 527ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // loads and stores, then do a (aligned) load from the stack slot. 528ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT RegVT = TLI.getRegisterType(*DAG.getContext(), intVT); 529ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned LoadedBytes = LoadedVT.getSizeInBits() / 8; 530ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned RegBytes = RegVT.getSizeInBits() / 8; 531ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned NumRegs = (LoadedBytes + RegBytes - 1) / RegBytes; 532ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 533ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Make sure the stack slot is also aligned for the register type. 534ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner SDValue StackBase = DAG.CreateStackTemporary(LoadedVT, RegVT); 535ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 536ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner SDValue Increment = DAG.getConstant(RegBytes, TLI.getPointerTy()); 537ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner SmallVector<SDValue, 8> Stores; 538ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner SDValue StackPtr = StackBase; 539ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned Offset = 0; 540ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 541ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Do all but one copies using the full register width. 542ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner for (unsigned i = 1; i < NumRegs; i++) { 543ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Load one integer register's worth from the original location. 544ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner SDValue Load = DAG.getLoad(RegVT, dl, Chain, Ptr, 545ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner LD->getPointerInfo().getWithOffset(Offset), 546ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner LD->isVolatile(), LD->isNonTemporal(), 547ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MinAlign(LD->getAlignment(), Offset)); 54805e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands // Follow the load with a store to the stack slot. Remember the store. 549ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Stores.push_back(DAG.getStore(Load.getValue(1), dl, Load, StackPtr, 550ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner NULL, 0, false, false, 0)); 551ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Increment the pointers. 552ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Offset += RegBytes; 553ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, Increment); 554ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner StackPtr = DAG.getNode(ISD::ADD, dl, StackPtr.getValueType(), StackPtr, 555ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Increment); 55605e11fab87102a230551327bfc8434ffad7a88d4Duncan Sands } 557ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 558ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // The last copy may be partial. Do an extending load. 559ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT MemVT = EVT::getIntegerVT(*DAG.getContext(), 560ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 8 * (LoadedBytes - Offset)); 561ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner SDValue Load = DAG.getExtLoad(ISD::EXTLOAD, RegVT, dl, Chain, Ptr, 562ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner LD->getPointerInfo().getWithOffset(Offset), 563ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MemVT, LD->isVolatile(), 564ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner LD->isNonTemporal(), 565ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MinAlign(LD->getAlignment(), Offset)); 566ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Follow the load with a store to the stack slot. Remember the store. 567ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // On big-endian machines this requires a truncating store to ensure 568ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // that the bits end up in the right place. 569ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Stores.push_back(DAG.getTruncStore(Load.getValue(1), dl, Load, StackPtr, 570ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MachinePointerInfo(), MemVT, 571ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner false, false, 0)); 572ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 573ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // The order of the stores doesn't matter - say it with a TokenFactor. 574ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner SDValue TF = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, &Stores[0], 575ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Stores.size()); 576ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 577ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Finally, perform the original load only redirected to the stack slot. 578ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Load = DAG.getExtLoad(LD->getExtensionType(), VT, dl, TF, StackBase, 579ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MachinePointerInfo(), LoadedVT, false, false, 0); 580ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 581ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Callers expect a MERGE_VALUES node. 582ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner SDValue Ops[] = { Load, TF }; 583ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getMergeValues(Ops, 2, dl); 584907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen } 58583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(LoadedVT.isInteger() && !LoadedVT.isVector() && 586e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner "Unaligned load of unsupported type."); 587e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner 5888155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // Compute the new VT that is half the size of the old one. This is an 5898155d64c2ffab8b17e0fd8e3b7a66fcef6a8ec9dDale Johannesen // integer MVT. 59083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NumBits = LoadedVT.getSizeInBits(); 591e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NewLoadedVT; 59223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson NewLoadedVT = EVT::getIntegerVT(*DAG.getContext(), NumBits/2); 593e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner NumBits >>= 1; 594fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 595e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned Alignment = LD->getAlignment(); 596e400af83b3f8b69407a8963f1d2e2c82fa766f33Chris Lattner unsigned IncrementSize = NumBits / 8; 597f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio ISD::LoadExtType HiExtType = LD->getExtensionType(); 598f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 599f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If the original load is NON_EXTLOAD, the hi part load must be ZEXTLOAD. 600f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (HiExtType == ISD::NON_EXTLOAD) 601f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio HiExtType = ISD::ZEXTLOAD; 602f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 603f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // Load the value in two parts 604475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 605f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (TLI.isLittleEndian()) { 606ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, dl, Chain, Ptr, LD->getPointerInfo(), 607ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner NewLoadedVT, LD->isVolatile(), 6081e559443a17d1b335f697551c6263ba60d5dd827David Greene LD->isNonTemporal(), Alignment); 609bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 610f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 611ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getExtLoad(HiExtType, VT, dl, Chain, Ptr, 612ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner LD->getPointerInfo().getWithOffset(IncrementSize), 613ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner NewLoadedVT, LD->isVolatile(), 6146e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach LD->isNonTemporal(), MinAlign(Alignment,IncrementSize)); 615f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 616ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getExtLoad(HiExtType, VT, dl, Chain, Ptr, LD->getPointerInfo(), 617ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner NewLoadedVT, LD->isVolatile(), 6181e559443a17d1b335f697551c6263ba60d5dd827David Greene LD->isNonTemporal(), Alignment); 619bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 620f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio DAG.getConstant(IncrementSize, TLI.getPointerTy())); 621ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, dl, Chain, Ptr, 622ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner LD->getPointerInfo().getWithOffset(IncrementSize), 623ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner NewLoadedVT, LD->isVolatile(), 6246e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach LD->isNonTemporal(), MinAlign(Alignment,IncrementSize)); 625f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 626f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 627f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // aggregate the two parts 628475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); 629bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen SDValue Result = DAG.getNode(ISD::SHL, dl, VT, Hi, ShiftAmount); 630bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen Result = DAG.getNode(ISD::OR, dl, VT, Result, Lo); 631f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 632825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson SDValue TF = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 633f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Hi.getValue(1)); 634f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio 635475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { Result, TF }; 636bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen return DAG.getMergeValues(Ops, 2, dl); 637f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio} 638912095becac923ff614d7b07728eb345ada67765Evan Cheng 6396867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman/// PerformInsertVectorEltInMemory - Some target cannot handle a variable 6406867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman/// insertion index for the INSERT_VECTOR_ELT instruction. In this case, it 6416867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman/// is necessary to spill the vector being inserted into to memory, perform 6426867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman/// the insert there, and then read the result back. 643475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize:: 644bb5da918545efb54857a09c983a5a7f22a7e04d4Dale JohannesenPerformInsertVectorEltInMemory(SDValue Vec, SDValue Val, SDValue Idx, 645bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen DebugLoc dl) { 646475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1 = Vec; 647475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp2 = Val; 648475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp3 = Idx; 649fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 6506867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // If the target doesn't support this, we have to spill the input vector 6516867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // to a temporary stack slot, update the element, then reload it. This is 6526867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // badness. We could also load the value into a vector register (either 6536867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // with a "move to register" or "extload into register" instruction, then 6546867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // permute it into place, if the idx is a constant and if the idx is 6556867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // supported by the target. 656e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Tmp1.getValueType(); 657e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EltVT = VT.getVectorElementType(); 658e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT IdxVT = Tmp3.getValueType(); 659e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT PtrVT = TLI.getPointerTy(); 660475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue StackPtr = DAG.CreateStackTemporary(VT); 6616867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 662ff89dcb06fbd103373436e2d0ae85f252fae2254Evan Cheng int SPFI = cast<FrameIndexSDNode>(StackPtr.getNode())->getIndex(); 663ff89dcb06fbd103373436e2d0ae85f252fae2254Evan Cheng 6646867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Store the vector. 665bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen SDValue Ch = DAG.getStore(DAG.getEntryNode(), dl, Tmp1, StackPtr, 66685ca1066328639119f94c47a83b698c48b84ebb0Chris Lattner MachinePointerInfo::getFixedStack(SPFI), 6671e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, 0); 6686867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 6696867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Truncate or zero extend offset to target pointer type. 6708e4eb09b1e3571965f49edcdfb56b1375b1b7551Duncan Sands unsigned CastOpc = IdxVT.bitsGT(PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; 671bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen Tmp3 = DAG.getNode(CastOpc, dl, PtrVT, Tmp3); 6726867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Add the offset to the index. 673aa9d854b334cab2f29ca6d95413a0946b8a38429Dan Gohman unsigned EltSize = EltVT.getSizeInBits()/8; 674bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen Tmp3 = DAG.getNode(ISD::MUL, dl, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); 675bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen SDValue StackPtr2 = DAG.getNode(ISD::ADD, dl, IdxVT, Tmp3, StackPtr); 6766867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Store the scalar value. 67785ca1066328639119f94c47a83b698c48b84ebb0Chris Lattner Ch = DAG.getTruncStore(Ch, dl, Tmp2, StackPtr2, MachinePointerInfo(), EltVT, 6781e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, 0); 6796867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman // Load the updated vector. 680bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen return DAG.getLoad(VT, dl, Ch, StackPtr, 68185ca1066328639119f94c47a83b698c48b84ebb0Chris Lattner MachinePointerInfo::getFixedStack(SPFI), false, false, 0); 6826867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman} 6836867991d541d08ca95d86841eca5f7c1d5096864Nate Begeman 684e9f1015d1f184a51aaadfd03be0846bd5e7d08a2Mon P Wang 6853f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli FriedmanSDValue SelectionDAGLegalize:: 6863f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli FriedmanExpandINSERT_VECTOR_ELT(SDValue Vec, SDValue Val, SDValue Idx, DebugLoc dl) { 6873f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Idx)) { 6883f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman // SCALAR_TO_VECTOR requires that the type of the value being inserted 6893f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman // match the element type of the vector being created, except for 6903f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman // integers in which case the inserted value can be over width. 691e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EltVT = Vec.getValueType().getVectorElementType(); 6923f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman if (Val.getValueType() == EltVT || 6933f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman (EltVT.isInteger() && Val.getValueType().bitsGE(EltVT))) { 6943f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman SDValue ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, 6953f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman Vec.getValueType(), Val); 6963f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman 6973f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman unsigned NumElts = Vec.getValueType().getVectorNumElements(); 6983f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman // We generate a shuffle of InVec and ScVec, so the shuffle mask 6993f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman // should be 0,1,2,3,4,5... with the appropriate element replaced with 7003f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman // elt 0 of the RHS. 7013f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman SmallVector<int, 8> ShufOps; 7023f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman for (unsigned i = 0; i != NumElts; ++i) 7033f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman ShufOps.push_back(i != InsertPos->getZExtValue() ? i : NumElts); 7043f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman 7053f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman return DAG.getVectorShuffle(Vec.getValueType(), dl, Vec, ScVec, 7063f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman &ShufOps[0]); 7073f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman } 7083f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman } 7093f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman return PerformInsertVectorEltInMemory(Vec, Val, Idx, dl); 7103f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman} 7113f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman 7127ef3d178660b82d1571757e49f44b004d772a116Eli FriedmanSDValue SelectionDAGLegalize::OptimizeFloatStore(StoreSDNode* ST) { 7137ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' 7147ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // FIXME: We shouldn't do this for TargetConstantFP's. 7157ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // FIXME: move this to the DAG Combiner! Note that we can't regress due 7167ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // to phase ordering between legalized code and the dag combiner. This 7177ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // probably means that we need to integrate dag combiner and legalizer 7187ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // together. 7197ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // We generally can't do this one for long doubles. 7207ef3d178660b82d1571757e49f44b004d772a116Eli Friedman SDValue Tmp1 = ST->getChain(); 7217ef3d178660b82d1571757e49f44b004d772a116Eli Friedman SDValue Tmp2 = ST->getBasePtr(); 7227ef3d178660b82d1571757e49f44b004d772a116Eli Friedman SDValue Tmp3; 7237ef3d178660b82d1571757e49f44b004d772a116Eli Friedman int SVOffset = ST->getSrcValueOffset(); 7247ef3d178660b82d1571757e49f44b004d772a116Eli Friedman unsigned Alignment = ST->getAlignment(); 7257ef3d178660b82d1571757e49f44b004d772a116Eli Friedman bool isVolatile = ST->isVolatile(); 7261e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = ST->isNonTemporal(); 7277ef3d178660b82d1571757e49f44b004d772a116Eli Friedman DebugLoc dl = ST->getDebugLoc(); 7287ef3d178660b82d1571757e49f44b004d772a116Eli Friedman if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(ST->getValue())) { 729825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (CFP->getValueType(0) == MVT::f32 && 730825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson getTypeAction(MVT::i32) == Legal) { 7317ef3d178660b82d1571757e49f44b004d772a116Eli Friedman Tmp3 = DAG.getConstant(CFP->getValueAPF(). 7327ef3d178660b82d1571757e49f44b004d772a116Eli Friedman bitcastToAPInt().zextOrTrunc(32), 733825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson MVT::i32); 7347ef3d178660b82d1571757e49f44b004d772a116Eli Friedman return DAG.getStore(Tmp1, dl, Tmp3, Tmp2, ST->getSrcValue(), 7351e559443a17d1b335f697551c6263ba60d5dd827David Greene SVOffset, isVolatile, isNonTemporal, Alignment); 736825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson } else if (CFP->getValueType(0) == MVT::f64) { 7377ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // If this target supports 64-bit registers, do a single 64-bit store. 738825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (getTypeAction(MVT::i64) == Legal) { 7397ef3d178660b82d1571757e49f44b004d772a116Eli Friedman Tmp3 = DAG.getConstant(CFP->getValueAPF().bitcastToAPInt(). 740825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson zextOrTrunc(64), MVT::i64); 7417ef3d178660b82d1571757e49f44b004d772a116Eli Friedman return DAG.getStore(Tmp1, dl, Tmp3, Tmp2, ST->getSrcValue(), 7421e559443a17d1b335f697551c6263ba60d5dd827David Greene SVOffset, isVolatile, isNonTemporal, Alignment); 743825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson } else if (getTypeAction(MVT::i32) == Legal && !ST->isVolatile()) { 7447ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // Otherwise, if the target supports 32-bit registers, use 2 32-bit 7457ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // stores. If the target supports neither 32- nor 64-bits, this 7467ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // xform is certainly not worth it. 7477ef3d178660b82d1571757e49f44b004d772a116Eli Friedman const APInt &IntVal =CFP->getValueAPF().bitcastToAPInt(); 748825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson SDValue Lo = DAG.getConstant(APInt(IntVal).trunc(32), MVT::i32); 749825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson SDValue Hi = DAG.getConstant(IntVal.lshr(32).trunc(32), MVT::i32); 7507ef3d178660b82d1571757e49f44b004d772a116Eli Friedman if (TLI.isBigEndian()) std::swap(Lo, Hi); 7517ef3d178660b82d1571757e49f44b004d772a116Eli Friedman 7527ef3d178660b82d1571757e49f44b004d772a116Eli Friedman Lo = DAG.getStore(Tmp1, dl, Lo, Tmp2, ST->getSrcValue(), 7531e559443a17d1b335f697551c6263ba60d5dd827David Greene SVOffset, isVolatile, isNonTemporal, Alignment); 7547ef3d178660b82d1571757e49f44b004d772a116Eli Friedman Tmp2 = DAG.getNode(ISD::ADD, dl, Tmp2.getValueType(), Tmp2, 7557ef3d178660b82d1571757e49f44b004d772a116Eli Friedman DAG.getIntPtrConstant(4)); 7567ef3d178660b82d1571757e49f44b004d772a116Eli Friedman Hi = DAG.getStore(Tmp1, dl, Hi, Tmp2, ST->getSrcValue(), SVOffset+4, 7571e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, MinAlign(Alignment, 4U)); 7587ef3d178660b82d1571757e49f44b004d772a116Eli Friedman 759825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 7607ef3d178660b82d1571757e49f44b004d772a116Eli Friedman } 7617ef3d178660b82d1571757e49f44b004d772a116Eli Friedman } 7627ef3d178660b82d1571757e49f44b004d772a116Eli Friedman } 7637ef3d178660b82d1571757e49f44b004d772a116Eli Friedman return SDValue(); 7647ef3d178660b82d1571757e49f44b004d772a116Eli Friedman} 7657ef3d178660b82d1571757e49f44b004d772a116Eli Friedman 766a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// LegalizeOp - We know that the specified value has a legal type, and 767a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// that its operands are legal. Now ensure that the operation itself 768a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// is legal, recursively ensuring that the operands' operations remain 769a346615d11f0a560c6e7280c1e614301d9f93051Dan Gohman/// legal. 770475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) { 77109ec1b058331aadb29a348091611d23892b5c492Chris Lattner if (Op.getOpcode() == ISD::TargetConstant) // Allow illegal target nodes. 77209ec1b058331aadb29a348091611d23892b5c492Chris Lattner return Op; 773fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 774ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif SDNode *Node = Op.getNode(); 7757d2ad624fa749a6d3edac0d94e9c107989c16304Dale Johannesen DebugLoc dl = Node->getDebugLoc(); 776e3304a3d24afc952d3cb415d1b504d973573c5c5Chris Lattner 7771fde9c5f771922f12fefc903850c4eca303297d9Eli Friedman for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 7781fde9c5f771922f12fefc903850c4eca303297d9Eli Friedman assert(getTypeAction(Node->getValueType(i)) == Legal && 7791fde9c5f771922f12fefc903850c4eca303297d9Eli Friedman "Unexpected illegal type!"); 7801fde9c5f771922f12fefc903850c4eca303297d9Eli Friedman 7811fde9c5f771922f12fefc903850c4eca303297d9Eli Friedman for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 7826e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach assert((isTypeLegal(Node->getOperand(i).getValueType()) || 7831fde9c5f771922f12fefc903850c4eca303297d9Eli Friedman Node->getOperand(i).getOpcode() == ISD::TargetConstant) && 7841fde9c5f771922f12fefc903850c4eca303297d9Eli Friedman "Unexpected illegal type!"); 7853e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 78645982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 78745982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 788475871a144eb604ddaf37503397ba0941442e5fbDan Gohman DenseMap<SDValue, SDValue>::iterator I = LegalizedNodes.find(Op); 789e1bd822ddb0099406d9f280535461033dfeeb190Chris Lattner if (I != LegalizedNodes.end()) return I->second; 7903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 791475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1, Tmp2, Tmp3, Tmp4; 792475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result = Op; 793456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner bool isCustom = false; 794fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 7958c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // Figure out the correct action; the way to query this varies by opcode 7968c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman TargetLowering::LegalizeAction Action; 7978c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman bool SimpleFinishLegalizing = true; 7983e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner switch (Node->getOpcode()) { 7998c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::INTRINSIC_W_CHAIN: 8008c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::INTRINSIC_WO_CHAIN: 8018c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::INTRINSIC_VOID: 8028c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::VAARG: 8038c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::STACKSAVE: 804825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Action = TLI.getOperationAction(Node->getOpcode(), MVT::Other); 8058c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 8068c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::SINT_TO_FP: 8078c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::UINT_TO_FP: 8088c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::EXTRACT_VECTOR_ELT: 8098c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Action = TLI.getOperationAction(Node->getOpcode(), 8108c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Node->getOperand(0).getValueType()); 8118c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 8128c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::FP_ROUND_INREG: 8138c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::SIGN_EXTEND_INREG: { 814e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT InnerType = cast<VTSDNode>(Node->getOperand(1))->getVT(); 8158c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Action = TLI.getOperationAction(Node->getOpcode(), InnerType); 8168c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 8178c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 8183be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman case ISD::SELECT_CC: 8193be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman case ISD::SETCC: 8203be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman case ISD::BR_CC: { 8213be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman unsigned CCOperand = Node->getOpcode() == ISD::SELECT_CC ? 4 : 8223be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman Node->getOpcode() == ISD::SETCC ? 2 : 1; 8233be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman unsigned CompareOperand = Node->getOpcode() == ISD::BR_CC ? 2 : 0; 824e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OpVT = Node->getOperand(CompareOperand).getValueType(); 8253be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman ISD::CondCode CCCode = 8263be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman cast<CondCodeSDNode>(Node->getOperand(CCOperand))->get(); 8273be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman Action = TLI.getCondCodeAction(CCCode, OpVT); 8283be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman if (Action == TargetLowering::Legal) { 8293be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman if (Node->getOpcode() == ISD::SELECT_CC) 8303be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman Action = TLI.getOperationAction(Node->getOpcode(), 8313be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman Node->getValueType(0)); 8323be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman else 8333be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman Action = TLI.getOperationAction(Node->getOpcode(), OpVT); 8343be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman } 8353be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman break; 8363be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman } 8378c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::LOAD: 8388c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::STORE: 839ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman // FIXME: Model these properly. LOAD and STORE are complicated, and 840ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman // STORE expects the unlegalized operand in some cases. 841ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman SimpleFinishLegalizing = false; 842ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman break; 8438c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::CALLSEQ_START: 8448c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::CALLSEQ_END: 845ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman // FIXME: This shouldn't be necessary. These nodes have special properties 846ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman // dealing with the recursive nature of legalization. Removing this 847ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman // special case should be done as part of making LegalizeDAG non-recursive. 848ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman SimpleFinishLegalizing = false; 849ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman break; 8508c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::EXTRACT_ELEMENT: 8518c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::FLT_ROUNDS_: 8528c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::SADDO: 8538c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::SSUBO: 8548c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::UADDO: 8558c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::USUBO: 8568c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::SMULO: 8578c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::UMULO: 8588c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::FPOWI: 8598c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::MERGE_VALUES: 8608c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::EH_RETURN: 8618c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::FRAME_TO_ARGS_OFFSET: 862c66e150b2cb1f2f8e2f4eb124b9177ffc6ef3a74Jim Grosbach case ISD::EH_SJLJ_SETJMP: 863c66e150b2cb1f2f8e2f4eb124b9177ffc6ef3a74Jim Grosbach case ISD::EH_SJLJ_LONGJMP: 864f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman // These operations lie about being legal: when they claim to be legal, 865f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman // they should actually be expanded. 8668c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Action = TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)); 8678c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman if (Action == TargetLowering::Legal) 8688c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Action = TargetLowering::Expand; 8698c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 8708c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::TRAMPOLINE: 8718c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::FRAMEADDR: 8728c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::RETURNADDR: 8734bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // These operations lie about being legal: when they claim to be legal, 8744bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // they should actually be custom-lowered. 8754bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman Action = TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)); 8764bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman if (Action == TargetLowering::Legal) 8774bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman Action = TargetLowering::Custom; 8788c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 8798c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::BUILD_VECTOR: 880b5da3f6f98b28afc0c62572c164ffccb4004827fEli Friedman // A weird case: legalization for BUILD_VECTOR never legalizes the 881b5da3f6f98b28afc0c62572c164ffccb4004827fEli Friedman // operands! 882b5da3f6f98b28afc0c62572c164ffccb4004827fEli Friedman // FIXME: This really sucks... changing it isn't semantically incorrect, 883b5da3f6f98b28afc0c62572c164ffccb4004827fEli Friedman // but it massively pessimizes the code for floating-point BUILD_VECTORs 884b5da3f6f98b28afc0c62572c164ffccb4004827fEli Friedman // because ConstantFP operands get legalized into constant pool loads 885b5da3f6f98b28afc0c62572c164ffccb4004827fEli Friedman // before the BUILD_VECTOR code can see them. It doesn't usually bite, 886b5da3f6f98b28afc0c62572c164ffccb4004827fEli Friedman // though, because BUILD_VECTORS usually get lowered into other nodes 887b5da3f6f98b28afc0c62572c164ffccb4004827fEli Friedman // which get legalized properly. 8888c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman SimpleFinishLegalizing = false; 889948c1b1cda280c6428dbeaa03a6c2c559dbb93f4Chris Lattner break; 8903e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner default: 891d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { 8928c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Action = TargetLowering::Legal; 8938c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } else { 8948c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Action = TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)); 8958c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 8968c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 8978c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 898d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner 8998c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman if (SimpleFinishLegalizing) { 9008c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman SmallVector<SDValue, 8> Ops, ResultVals; 9018c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) 9028c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Ops.push_back(LegalizeOp(Node->getOperand(i))); 9038c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman switch (Node->getOpcode()) { 9048c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman default: break; 9058c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::BR: 9068c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::BRIND: 9078c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::BR_JT: 9088c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::BR_CC: 9098c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::BRCOND: 9108c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // Branches tweak the chain to include LastCALLSEQ_END 911825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Ops[0] = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Ops[0], 9128c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman LastCALLSEQ_END); 9138c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Ops[0] = LegalizeOp(Ops[0]); 9148c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman LastCALLSEQ_END = DAG.getEntryNode(); 9158c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 9168c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::SHL: 9178c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::SRL: 9188c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::SRA: 9198c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::ROTL: 9208c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::ROTR: 9218c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // Legalizing shifts/rotates requires adjusting the shift amount 9228c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // to the appropriate width. 9238c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman if (!Ops[1].getValueType().isVector()) 9248c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Ops[1] = LegalizeOp(DAG.getShiftAmountOperand(Ops[1])); 9258c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 926db8dc2b9faf346fbfa04c07f501981250948f5e2Dan Gohman case ISD::SRL_PARTS: 927db8dc2b9faf346fbfa04c07f501981250948f5e2Dan Gohman case ISD::SRA_PARTS: 928db8dc2b9faf346fbfa04c07f501981250948f5e2Dan Gohman case ISD::SHL_PARTS: 929db8dc2b9faf346fbfa04c07f501981250948f5e2Dan Gohman // Legalizing shifts/rotates requires adjusting the shift amount 930db8dc2b9faf346fbfa04c07f501981250948f5e2Dan Gohman // to the appropriate width. 931db8dc2b9faf346fbfa04c07f501981250948f5e2Dan Gohman if (!Ops[2].getValueType().isVector()) 932db8dc2b9faf346fbfa04c07f501981250948f5e2Dan Gohman Ops[2] = LegalizeOp(DAG.getShiftAmountOperand(Ops[2])); 9332c9489d6e96d99f77b6c31919805b5e61954deb2Dan Gohman break; 9348c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 9358c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman 936027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Result = SDValue(DAG.UpdateNodeOperands(Result.getNode(), Ops.data(), 937027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Ops.size()), 0); 9388c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman switch (Action) { 9398c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case TargetLowering::Legal: 940d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 9418c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman ResultVals.push_back(Result.getValue(i)); 9428c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 9438c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case TargetLowering::Custom: 9448c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // FIXME: The handling for custom lowering with multiple results is 9458c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // a complete mess. 9468c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = TLI.LowerOperation(Result, DAG); 9478c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman if (Tmp1.getNode()) { 9488c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { 9498c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman if (e == 1) 9508c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman ResultVals.push_back(Tmp1); 9518c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman else 9528c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman ResultVals.push_back(Tmp1.getValue(i)); 9538c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 9548c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 9558c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 9568c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman 9578c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // FALL THROUGH 9588c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case TargetLowering::Expand: 9598c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman ExpandNode(Result.getNode(), ResultVals); 9608c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 9618c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case TargetLowering::Promote: 9628c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman PromoteNode(Result.getNode(), ResultVals); 9638c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 9648c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 9658c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman if (!ResultVals.empty()) { 9668c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman for (unsigned i = 0, e = ResultVals.size(); i != e; ++i) { 9678c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman if (ResultVals[i] != SDValue(Node, i)) 9688c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman ResultVals[i] = LegalizeOp(ResultVals[i]); 9698c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman AddLegalizedOperand(SDValue(Node, i), ResultVals[i]); 9708c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 9718c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman return ResultVals[Op.getResNo()]; 972d73cc5d0585e86bf6d350ab9fd9caf85bdfc8b52Chris Lattner } 9738c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 9748c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman 9758c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman switch (Node->getOpcode()) { 9768c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman default: 977e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#ifndef NDEBUG 978993aacedfdc3f156f667b4efa280ee79eab3b898David Greene dbgs() << "NODE: "; 979993aacedfdc3f156f667b4efa280ee79eab3b898David Greene Node->dump( &DAG); 980993aacedfdc3f156f667b4efa280ee79eab3b898David Greene dbgs() << "\n"; 981e37fe9b3a1cadceb42ac27fa0718f5a10ea2f0e6Jim Laskey#endif 98235a389344d21178ee280c2410401b2060b5b879cChris Lattner assert(0 && "Do not know how to legalize this operator!"); 98398ca4f2a325f72374a477f9deba7d09e8999c29bDan Gohman 984b2827b0901162169bb2692b77a839c9767849134Chris Lattner case ISD::BUILD_VECTOR: 985b2827b0901162169bb2692b77a839c9767849134Chris Lattner switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { 98635a389344d21178ee280c2410401b2060b5b879cChris Lattner default: assert(0 && "This action is not supported yet!"); 9872332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner case TargetLowering::Custom: 9882332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Tmp3 = TLI.LowerOperation(Result, DAG); 989ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp3.getNode()) { 9902332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner Result = Tmp3; 9912332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 9922332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 9932332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner // FALLTHROUGH 994ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner case TargetLowering::Expand: 995ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Result = ExpandBUILD_VECTOR(Result.getNode()); 996b2827b0901162169bb2692b77a839c9767849134Chris Lattner break; 9972332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner } 9982332b9f16fe17d1886566729b2241b8cd90f9916Chris Lattner break; 9996831a815999dde4cf801e2076e66b4943964daf2Chris Lattner case ISD::CALLSEQ_START: { 10006831a815999dde4cf801e2076e66b4943964daf2Chris Lattner SDNode *CallEnd = FindCallEndFromCallStart(Node); 1001fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 10026831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Recursively Legalize all of the inputs of the call end that do not lead 10036831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // to this call start. This ensures that any libcalls that need be inserted 10046831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // are inserted *before* the CALLSEQ_START. 100500755df36c1448ac4728a74d907aa09e3d8b2d49Chris Lattner {SmallPtrSet<SDNode*, 32> NodesLeadingTo; 10066831a815999dde4cf801e2076e66b4943964daf2Chris Lattner for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) 1007ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).getNode(), Node, 1008c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner NodesLeadingTo); 1009c9cf4f1a7573ac7e379efd6ad15d7bd0a84a097cChris Lattner } 10106831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1011ee7f8b5f058174a55372159bc23088198e5f5991Jim Grosbach // Now that we have legalized all of the inputs (which may have inserted 1012ee7f8b5f058174a55372159bc23088198e5f5991Jim Grosbach // libcalls), create the new CALLSEQ_START node. 10136831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 10146831a815999dde4cf801e2076e66b4943964daf2Chris Lattner 1015ee7f8b5f058174a55372159bc23088198e5f5991Jim Grosbach // Merge in the last call to ensure that this call starts after the last 10166831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // call ended. 1017c5d7d7c715f7b7a4eeea1ceaafefc3d1d6df2addChris Lattner if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { 1018825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Tmp1 = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, 1019ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Tmp1, LastCALLSEQ_END); 1020b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner Tmp1 = LegalizeOp(Tmp1); 1021b248e16afd105fd8c01e08d8bf997b08ff08d127Chris Lattner } 1022fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 10236831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Do not try to legalize the target-specific arguments (#1+). 10246831a815999dde4cf801e2076e66b4943964daf2Chris Lattner if (Tmp1 != Node->getOperand(0)) { 1025475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops(Node->op_begin(), Node->op_end()); 10266831a815999dde4cf801e2076e66b4943964daf2Chris Lattner Ops[0] = Tmp1; 10276e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach Result = SDValue(DAG.UpdateNodeOperands(Result.getNode(), &Ops[0], 10286e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach Ops.size()), Result.getResNo()); 10296831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 1030fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 10316831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Remember that the CALLSEQ_START is legalized. 10324b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(0), Result); 10334b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) // If this has a flag result, remember it. 10344b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); 1035fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 10366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Now that the callseq_start and all of the non-call nodes above this call 1037fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel // sequence have been legalized, legalize the call itself. During this 10386831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // process, no libcalls can/will be inserted, guaranteeing that no calls 10396831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // can overlap. 10406831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); 10416831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Note that we are selecting this call! 1042475871a144eb604ddaf37503397ba0941442e5fbDan Gohman LastCALLSEQ_END = SDValue(CallEnd, 0); 10436831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = true; 1044fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 10456831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call, starting from the CALLSEQ_END. 10466831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(LastCALLSEQ_END); 10476831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); 10486831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return Result; 10496831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 105016cd04d26c53c6f81313cafb85f6c0e7a07cdff6Chris Lattner case ISD::CALLSEQ_END: 10516831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // If the CALLSEQ_START node hasn't been legalized first, legalize it. This 10526831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // will cause this node to be legalized as well as handling libcalls right. 1053ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (LastCALLSEQ_END.getNode() != Node) { 1054475871a144eb604ddaf37503397ba0941442e5fbDan Gohman LegalizeOp(SDValue(FindCallStartFromCallEnd(Node), 0)); 1055475871a144eb604ddaf37503397ba0941442e5fbDan Gohman DenseMap<SDValue, SDValue>::iterator I = LegalizedNodes.find(Op); 10566831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(I != LegalizedNodes.end() && 10576831a815999dde4cf801e2076e66b4943964daf2Chris Lattner "Legalizing the call start should have legalized this node!"); 10586831a815999dde4cf801e2076e66b4943964daf2Chris Lattner return I->second; 10596831a815999dde4cf801e2076e66b4943964daf2Chris Lattner } 1060fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 1061fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel // Otherwise, the call start has been legalized and everything is going 10626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // according to plan. Just legalize ourselves normally here. 10633e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. 106470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // Do not try to legalize the target-specific arguments (#1+), except for 106570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner // an optional flag input. 1066825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ 106770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0)) { 1068475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops(Node->op_begin(), Node->op_end()); 106970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 1070027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Result = SDValue(DAG.UpdateNodeOperands(Result.getNode(), 1071027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman &Ops[0], Ops.size()), 1072027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Result.getResNo()); 107370814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 107470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } else { 107570814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); 107670814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner if (Tmp1 != Node->getOperand(0) || 107770814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { 1078475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SmallVector<SDValue, 8> Ops(Node->op_begin(), Node->op_end()); 107970814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops[0] = Tmp1; 108070814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner Ops.back() = Tmp2; 1081027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Result = SDValue(DAG.UpdateNodeOperands(Result.getNode(), 1082027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman &Ops[0], Ops.size()), 1083027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Result.getResNo()); 108470814bc38435d61a8c7cc32f2375c09e21f12a8aChris Lattner } 10856a5428934ba6159c1acc541944332e51a6cfa59aChris Lattner } 10864b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); 10876831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // This finishes up call legalization. 10886831a815999dde4cf801e2076e66b4943964daf2Chris Lattner IsLegalizingCall = false; 1089fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 10904b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner // If the CALLSEQ_END node has a flag, remember that we legalized it. 1091475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); 10924b653a0405bb16b555334d134c1eb8a97366ec3dChris Lattner if (Node->getNumValues() == 2) 1093475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); 109499a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Result.getValue(Op.getResNo()); 1095f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::LOAD: { 1096466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng LoadSDNode *LD = cast<LoadSDNode>(Node); 1097466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. 1098466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. 10992d86ea21dd76647cb054fd5d27df9e49efc672b6Andrew Lenharth 1100466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng ISD::LoadExtType ExtType = LD->getExtensionType(); 1101466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng if (ExtType == ISD::NON_EXTLOAD) { 1102e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Node->getValueType(0); 1103027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Result = SDValue(DAG.UpdateNodeOperands(Result.getNode(), 1104027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Tmp1, Tmp2, LD->getOffset()), 1105027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Result.getResNo()); 1106466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = Result.getValue(0); 1107466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = Result.getValue(1); 1108fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 1109466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng switch (TLI.getOperationAction(Node->getOpcode(), VT)) { 111035a389344d21178ee280c2410401b2060b5b879cChris Lattner default: assert(0 && "This action is not supported yet!"); 1111f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 1112f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned load and the target doesn't support it, 1113f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1114bc037cfcdef8e88274d7dd167fb9d8ba545f2229Benjamin Kramer if (!TLI.allowsUnalignedMemoryAccesses(LD->getMemoryVT())) { 1115e96507c73111d88743a15db6d6329f4fbdde7decEvan Cheng const Type *Ty = LD->getMemoryVT().getTypeForEVT(*DAG.getContext()); 1116e96507c73111d88743a15db6d6329f4fbdde7decEvan Cheng unsigned ABIAlignment = TLI.getTargetData()->getABITypeAlignment(Ty); 1117f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (LD->getAlignment() < ABIAlignment){ 11186e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.getNode()), 1119debcb01b0f0a15f568ca69e8f288fade4bfc7297Owen Anderson DAG, TLI); 1120f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp3 = Result.getOperand(0); 1121f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio Tmp4 = Result.getOperand(1); 1122907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp3 = LegalizeOp(Tmp3); 1123907f28ce3032e67c02a50095659e901de867dd3cDale Johannesen Tmp4 = LegalizeOp(Tmp4); 1124f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1125f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1126f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 1127466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Custom: 1128466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp1 = TLI.LowerOperation(Tmp3, DAG); 1129ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) { 1130466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp3 = LegalizeOp(Tmp1); 1131466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1132466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1133466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1134466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng case TargetLowering::Promote: { 1135466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Only promote a load of vector type to another. 113683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(VT.isVector() && "Cannot promote this load!"); 1137466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Change base type to a different vector type. 1138e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); 1139466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng 1140ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Tmp1 = DAG.getLoad(NVT, dl, Tmp1, Tmp2, LD->getPointerInfo(), 11411e559443a17d1b335f697551c6263ba60d5dd827David Greene LD->isVolatile(), LD->isNonTemporal(), 11421e559443a17d1b335f697551c6263ba60d5dd827David Greene LD->getAlignment()); 1143b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, dl, VT, Tmp1)); 114441f6cbbeb21d7d4376b8c0302b9766c3e43be5f2Evan Cheng Tmp4 = LegalizeOp(Tmp1.getValue(1)); 1145466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1146f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 1147466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 1148fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel // Since loads produce two values, make sure to remember that we 1149466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // legalized both of them. 1150475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Tmp3); 1151475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Tmp4); 115299a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Op.getResNo() ? Tmp4 : Tmp3; 1153466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } else { 1154e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SrcVT = LD->getMemoryVT(); 115583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned SrcWidth = SrcVT.getSizeInBits(); 1156f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands int SVOffset = LD->getSrcValueOffset(); 1157f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned Alignment = LD->getAlignment(); 1158f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands bool isVolatile = LD->isVolatile(); 11591e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = LD->isNonTemporal(); 1160f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 116183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (SrcWidth != SrcVT.getStoreSizeInBits() && 1162f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Some targets pretend to have an i1 loading operation, and actually 1163f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // load an i8. This trick is correct for ZEXTLOAD because the top 7 1164f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bits are guaranteed to be zero; it helps the optimizers understand 1165f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // that these bits are zero. It is also useful for EXTLOAD, since it 1166f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // tells the optimizers that those bits are undefined. It would be 1167f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // nice to have an effective generic way of getting these benefits... 1168f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Until such a way is found, don't insist on promoting i1 here. 1169825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson (SrcVT != MVT::i1 || 1170825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson TLI.getLoadExtAction(ExtType, MVT::i1) == TargetLowering::Promote)) { 1171f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Promote to a byte-sized load if not loading an integral number of 1172f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // bytes. For example, promote EXTLOAD:i20 -> EXTLOAD:i24. 117383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned NewWidth = SrcVT.getStoreSizeInBits(); 117423b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = EVT::getIntegerVT(*DAG.getContext(), NewWidth); 1175475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch; 1176f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1177f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // The extra bits are guaranteed to be zero, since we stored them that 1178f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // way. A zext load from NVT thus automatically gives zext from SrcVT. 1179f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1180f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ISD::LoadExtType NewExtType = 1181f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands ExtType == ISD::ZEXTLOAD ? ISD::ZEXTLOAD : ISD::EXTLOAD; 1182f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1183bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng Result = DAG.getExtLoad(NewExtType, Node->getValueType(0), dl, 1184f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), SVOffset, 11851e559443a17d1b335f697551c6263ba60d5dd827David Greene NVT, isVolatile, isNonTemporal, Alignment); 1186f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1187f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Ch = Result.getValue(1); // The chain. 1188f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1189f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 1190f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Having the top bits zero doesn't help when sign extending. 1191fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, 1192ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Result.getValueType(), 1193f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 1194f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else if (ExtType == ISD::ZEXTLOAD || NVT == Result.getValueType()) 1195f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // All the top bits are guaranteed to be zero - inform the optimizers. 1196fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel Result = DAG.getNode(ISD::AssertZext, dl, 1197ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Result.getValueType(), Result, 1198f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getValueType(SrcVT)); 1199f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1200f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 1201f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 1202f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else if (SrcWidth & (SrcWidth - 1)) { 1203f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If not loading a power-of-2 number of bits, expand as two loads. 1204bceddbdc919fc2ca7bc8c3911586ba93367686f0Ken Dyck assert(!SrcVT.isVector() && "Unsupported extload!"); 1205f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned RoundWidth = 1 << Log2_32(SrcWidth); 1206f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(RoundWidth < SrcWidth); 1207f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned ExtraWidth = SrcWidth - RoundWidth; 1208f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(ExtraWidth < RoundWidth); 1209f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 1210f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands "Load size not an integral number of bytes!"); 121123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT RoundVT = EVT::getIntegerVT(*DAG.getContext(), RoundWidth); 121223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT ExtraVT = EVT::getIntegerVT(*DAG.getContext(), ExtraWidth); 1213475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi, Ch; 1214f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands unsigned IncrementSize; 1215f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1216f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (TLI.isLittleEndian()) { 1217f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> ZEXTLOAD:i16 | (shl EXTLOAD@+2:i8, 16) 1218f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the bottom RoundWidth bits. 1219bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), dl, 1220bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng Tmp1, Tmp2, 1221f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 12221e559443a17d1b335f697551c6263ba60d5dd827David Greene isNonTemporal, Alignment); 1223f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1224f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 1225f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 1226ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Tmp2 = DAG.getNode(ISD::ADD, dl, Tmp2.getValueType(), Tmp2, 1227f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 1228bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), dl, Tmp1, Tmp2, 1229f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 12301e559443a17d1b335f697551c6263ba60d5dd827David Greene ExtraVT, isVolatile, isNonTemporal, 1231f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 1232f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 12336e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach // Build a factor node to remember that this load is independent of 12346e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach // the other one. 1235825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1236f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 1237f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1238f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 1239ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Hi = DAG.getNode(ISD::SHL, dl, Hi.getValueType(), Hi, 1240f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 1241f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1242f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 1243ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Result = DAG.getNode(ISD::OR, dl, Node->getValueType(0), Lo, Hi); 1244f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } else { 1245f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Big endian - avoid unaligned loads. 1246f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // EXTLOAD:i24 -> (shl EXTLOAD:i16, 8) | ZEXTLOAD@+2:i8 1247f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the top RoundWidth bits. 1248bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), dl, Tmp1, Tmp2, 1249f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset, RoundVT, isVolatile, 12501e559443a17d1b335f697551c6263ba60d5dd827David Greene isNonTemporal, Alignment); 1251f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1252f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Load the remaining ExtraWidth bits. 1253f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands IncrementSize = RoundWidth / 8; 1254ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Tmp2 = DAG.getNode(ISD::ADD, dl, Tmp2.getValueType(), Tmp2, 1255f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getIntPtrConstant(IncrementSize)); 1256bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng Lo = DAG.getExtLoad(ISD::ZEXTLOAD, 1257bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng Node->getValueType(0), dl, Tmp1, Tmp2, 1258f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValue(), SVOffset + IncrementSize, 12591e559443a17d1b335f697551c6263ba60d5dd827David Greene ExtraVT, isVolatile, isNonTemporal, 1260f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands MinAlign(Alignment, IncrementSize)); 1261f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 12626e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach // Build a factor node to remember that this load is independent of 12636e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach // the other one. 1264825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1265f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Hi.getValue(1)); 1266f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1267f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Move the top bits to the right place. 1268ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Hi = DAG.getNode(ISD::SHL, dl, Hi.getValueType(), Hi, 1269f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 1270f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1271f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Join the hi and lo parts. 1272ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Result = DAG.getNode(ISD::OR, dl, Node->getValueType(0), Lo, Hi); 1273f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 1274f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1275f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); 1276f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Ch); 1277f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 12780329466b6b4927f4e6f5d144891fef06a027fec5Evan Cheng switch (TLI.getLoadExtAction(ExtType, SrcVT)) { 127935a389344d21178ee280c2410401b2060b5b879cChris Lattner default: assert(0 && "This action is not supported yet!"); 1280f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Custom: 1281f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands isCustom = true; 1282f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // FALLTHROUGH 1283f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Legal: 1284027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Result = SDValue(DAG.UpdateNodeOperands(Result.getNode(), 1285027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Tmp1, Tmp2, LD->getOffset()), 1286027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Result.getResNo()); 1287f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getValue(0); 1288f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getValue(1); 1289f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1290f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (isCustom) { 1291f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp3 = TLI.LowerOperation(Result, DAG); 1292ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp3.getNode()) { 1293f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp3); 1294f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp3.getValue(1)); 1295f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 1296f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } else { 1297f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // If this is an unaligned load and the target doesn't support it, 1298f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // expand it. 1299bc037cfcdef8e88274d7dd167fb9d8ba545f2229Benjamin Kramer if (!TLI.allowsUnalignedMemoryAccesses(LD->getMemoryVT())) { 13006e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach const Type *Ty = 13016e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach LD->getMemoryVT().getTypeForEVT(*DAG.getContext()); 13026e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach unsigned ABIAlignment = 13036e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach TLI.getTargetData()->getABITypeAlignment(Ty); 1304f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (LD->getAlignment() < ABIAlignment){ 13056e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.getNode()), 1306debcb01b0f0a15f568ca69e8f288fade4bfc7297Owen Anderson DAG, TLI); 1307f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = Result.getOperand(0); 1308f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = Result.getOperand(1); 1309f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Tmp1); 1310f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Tmp2); 1311f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 1312f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1313f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1314f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 1315f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands case TargetLowering::Expand: 1316ef134d02e0036ef981983d4b5e40c678dd241583Bob Wilson if (!TLI.isLoadExtLegal(ISD::EXTLOAD, SrcVT) && isTypeLegal(SrcVT)) { 1317ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner SDValue Load = DAG.getLoad(SrcVT, dl, Tmp1, Tmp2, 1318ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner LD->getPointerInfo(), 13191e559443a17d1b335f697551c6263ba60d5dd827David Greene LD->isVolatile(), LD->isNonTemporal(), 13201e559443a17d1b335f697551c6263ba60d5dd827David Greene LD->getAlignment()); 132163241f79e667feafb10936b7c2cf03c33f55dd01Bob Wilson unsigned ExtendOp; 132263241f79e667feafb10936b7c2cf03c33f55dd01Bob Wilson switch (ExtType) { 132363241f79e667feafb10936b7c2cf03c33f55dd01Bob Wilson case ISD::EXTLOAD: 132463241f79e667feafb10936b7c2cf03c33f55dd01Bob Wilson ExtendOp = (SrcVT.isFloatingPoint() ? 132563241f79e667feafb10936b7c2cf03c33f55dd01Bob Wilson ISD::FP_EXTEND : ISD::ANY_EXTEND); 132663241f79e667feafb10936b7c2cf03c33f55dd01Bob Wilson break; 132763241f79e667feafb10936b7c2cf03c33f55dd01Bob Wilson case ISD::SEXTLOAD: ExtendOp = ISD::SIGN_EXTEND; break; 132863241f79e667feafb10936b7c2cf03c33f55dd01Bob Wilson case ISD::ZEXTLOAD: ExtendOp = ISD::ZERO_EXTEND; break; 132954f616304240fcbc41ca9b9b2af38eeb1171e8a8Chandler Carruth default: llvm_unreachable("Unexpected extend load type!"); 133063241f79e667feafb10936b7c2cf03c33f55dd01Bob Wilson } 133163241f79e667feafb10936b7c2cf03c33f55dd01Bob Wilson Result = DAG.getNode(ExtendOp, dl, Node->getValueType(0), Load); 1332f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(Result); // Relegalize new nodes. 1333f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Load.getValue(1)); 1334f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands break; 1335f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands } 1336ef134d02e0036ef981983d4b5e40c678dd241583Bob Wilson // FIXME: This does not work for vectors on most targets. Sign- and 1337ef134d02e0036ef981983d4b5e40c678dd241583Bob Wilson // zero-extend operations are currently folded into extending loads, 1338ef134d02e0036ef981983d4b5e40c678dd241583Bob Wilson // whether they are legal or not, and then we end up here without any 1339ef134d02e0036ef981983d4b5e40c678dd241583Bob Wilson // support for legalizing them. 13406e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach assert(ExtType != ISD::EXTLOAD && 13416e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach "EXTLOAD should always be supported!"); 1342f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // Turn the unsupported load into an EXTLOAD followed by an explicit 1343f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands // zero/sign extend inreg. 1344bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), dl, 1345f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1, Tmp2, LD->getSrcValue(), 1346f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands LD->getSrcValueOffset(), SrcVT, 13471e559443a17d1b335f697551c6263ba60d5dd827David Greene LD->isVolatile(), LD->isNonTemporal(), 13481e559443a17d1b335f697551c6263ba60d5dd827David Greene LD->getAlignment()); 1349475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue ValRes; 1350f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands if (ExtType == ISD::SEXTLOAD) 1351ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, 1352ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Result.getValueType(), 1353f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Result, DAG.getValueType(SrcVT)); 1354f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands else 1355ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen ValRes = DAG.getZeroExtendInReg(Result, dl, SrcVT); 1356f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. 1357f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. 1358466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng break; 1359466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng } 13609d416f713e8b9e4f0c0c2b3f6f57ce2dd8993209Andrew Lenharth } 1361f9c98e650d2795b8edfae8e1560c221029df218bDuncan Sands 1362466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // Since loads produce two values, make sure to remember that we legalized 1363466685d41a9ea4905b9486fea38e83802e46f196Evan Cheng // both of them. 1364475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 0), Tmp1); 1365475871a144eb604ddaf37503397ba0941442e5fbDan Gohman AddLegalizedOperand(SDValue(Node, 1), Tmp2); 136699a6cb92d173c142073416c81efe6d3daeb80b49Gabor Greif return Op.getResNo() ? Tmp2 : Tmp1; 136701ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 136801ff7216dd7829d4094754086baf28aa2d7149acChris Lattner } 1369f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng case ISD::STORE: { 13708b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng StoreSDNode *ST = cast<StoreSDNode>(Node); 13718b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. 13728b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. 1373d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman int SVOffset = ST->getSrcValueOffset(); 1374d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman unsigned Alignment = ST->getAlignment(); 1375d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman bool isVolatile = ST->isVolatile(); 13761e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = ST->isNonTemporal(); 13778b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 13788b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng if (!ST->isTruncatingStore()) { 13797ef3d178660b82d1571757e49f44b004d772a116Eli Friedman if (SDNode *OptStore = OptimizeFloatStore(ST).getNode()) { 13807ef3d178660b82d1571757e49f44b004d772a116Eli Friedman Result = SDValue(OptStore, 0); 13817ef3d178660b82d1571757e49f44b004d772a116Eli Friedman break; 1382d93d46ee7e0a0e539d42139b85c71b2b8c3968feChris Lattner } 1383fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 1384957bffaeca6a0e2ccc684d753df1d87e8e053fe2Eli Friedman { 13858b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp3 = LegalizeOp(ST->getValue()); 1386027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Result = SDValue(DAG.UpdateNodeOperands(Result.getNode(), 1387027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Tmp1, Tmp3, Tmp2, 1388027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman ST->getOffset()), 1389027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Result.getResNo()); 13908b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng 1391e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Tmp3.getValueType(); 13928b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng switch (TLI.getOperationAction(ISD::STORE, VT)) { 139335a389344d21178ee280c2410401b2060b5b879cChris Lattner default: assert(0 && "This action is not supported yet!"); 1394f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio case TargetLowering::Legal: 1395f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // If this is an unaligned store and the target doesn't support it, 1396f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio // expand it. 1397bc037cfcdef8e88274d7dd167fb9d8ba545f2229Benjamin Kramer if (!TLI.allowsUnalignedMemoryAccesses(ST->getMemoryVT())) { 1398e96507c73111d88743a15db6d6329f4fbdde7decEvan Cheng const Type *Ty = ST->getMemoryVT().getTypeForEVT(*DAG.getContext()); 13996e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach unsigned ABIAlignment= TLI.getTargetData()->getABITypeAlignment(Ty); 1400f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio if (ST->getAlignment() < ABIAlignment) 1401e96507c73111d88743a15db6d6329f4fbdde7decEvan Cheng Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.getNode()), 1402e96507c73111d88743a15db6d6329f4fbdde7decEvan Cheng DAG, TLI); 1403f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 1404f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio break; 14058b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Custom: 14068b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng Tmp1 = TLI.LowerOperation(Result, DAG); 1407ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Tmp1.getNode()) Result = Tmp1; 14088b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 14098b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng case TargetLowering::Promote: 141083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(VT.isVector() && "Unknown legal promote case!"); 1411fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel Tmp3 = DAG.getNode(ISD::BIT_CONVERT, dl, 14128b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); 1413ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Result = DAG.getStore(Tmp1, dl, Tmp3, Tmp2, 1414d6fd1bc122ba791c698255d8be158b8ec424e248Dan Gohman ST->getSrcValue(), SVOffset, isVolatile, 14151e559443a17d1b335f697551c6263ba60d5dd827David Greene isNonTemporal, Alignment); 14168b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng break; 14178b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 14182efce0a589e2a688a1a06b5dc2ed0db32ae79924Chris Lattner break; 1419f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 14208b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } else { 1421957bffaeca6a0e2ccc684d753df1d87e8e053fe2Eli Friedman Tmp3 = LegalizeOp(ST->getValue()); 14227e857201f387d004571e6058e2ea709163500f38Duncan Sands 1423e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT StVT = ST->getMemoryVT(); 142483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned StWidth = StVT.getSizeInBits(); 14257e857201f387d004571e6058e2ea709163500f38Duncan Sands 142683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (StWidth != StVT.getStoreSizeInBits()) { 14277e857201f387d004571e6058e2ea709163500f38Duncan Sands // Promote to a byte-sized store with upper bits zero if not 14287e857201f387d004571e6058e2ea709163500f38Duncan Sands // storing an integral number of bytes. For example, promote 14297e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i1 X -> TRUNCSTORE:i8 (and X, 1) 1430adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng EVT NVT = EVT::getIntegerVT(*DAG.getContext(), 1431adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng StVT.getStoreSizeInBits()); 1432ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Tmp3 = DAG.getZeroExtendInReg(Tmp3, dl, StVT); 1433ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Result = DAG.getTruncStore(Tmp1, dl, Tmp3, Tmp2, ST->getSrcValue(), 14341e559443a17d1b335f697551c6263ba60d5dd827David Greene SVOffset, NVT, isVolatile, isNonTemporal, 14351e559443a17d1b335f697551c6263ba60d5dd827David Greene Alignment); 14367e857201f387d004571e6058e2ea709163500f38Duncan Sands } else if (StWidth & (StWidth - 1)) { 14377e857201f387d004571e6058e2ea709163500f38Duncan Sands // If not storing a power-of-2 number of bits, expand as two stores. 1438bceddbdc919fc2ca7bc8c3911586ba93367686f0Ken Dyck assert(!StVT.isVector() && "Unsupported truncstore!"); 14397e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned RoundWidth = 1 << Log2_32(StWidth); 14407e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(RoundWidth < StWidth); 14417e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned ExtraWidth = StWidth - RoundWidth; 14427e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(ExtraWidth < RoundWidth); 14437e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && 14447e857201f387d004571e6058e2ea709163500f38Duncan Sands "Store size not an integral number of bytes!"); 144523b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT RoundVT = EVT::getIntegerVT(*DAG.getContext(), RoundWidth); 144623b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT ExtraVT = EVT::getIntegerVT(*DAG.getContext(), ExtraWidth); 1447475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 14487e857201f387d004571e6058e2ea709163500f38Duncan Sands unsigned IncrementSize; 14497e857201f387d004571e6058e2ea709163500f38Duncan Sands 14507e857201f387d004571e6058e2ea709163500f38Duncan Sands if (TLI.isLittleEndian()) { 14517e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 X, TRUNCSTORE@+2:i8 (srl X, 16) 14527e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the bottom RoundWidth bits. 1453ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Lo = DAG.getTruncStore(Tmp1, dl, Tmp3, Tmp2, ST->getSrcValue(), 14547e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset, RoundVT, 14551e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 14567e857201f387d004571e6058e2ea709163500f38Duncan Sands 14577e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 14587e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 1459ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Tmp2 = DAG.getNode(ISD::ADD, dl, Tmp2.getValueType(), Tmp2, 14607e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 1461ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Hi = DAG.getNode(ISD::SRL, dl, Tmp3.getValueType(), Tmp3, 14627e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); 1463ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Hi = DAG.getTruncStore(Tmp1, dl, Hi, Tmp2, ST->getSrcValue(), 14647e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 14651e559443a17d1b335f697551c6263ba60d5dd827David Greene isNonTemporal, 14667e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 14677e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 14687e857201f387d004571e6058e2ea709163500f38Duncan Sands // Big endian - avoid unaligned stores. 14697e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 (srl X, 8), TRUNCSTORE@+2:i8 X 14707e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the top RoundWidth bits. 1471ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Hi = DAG.getNode(ISD::SRL, dl, Tmp3.getValueType(), Tmp3, 14727e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); 1473ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Hi = DAG.getTruncStore(Tmp1, dl, Hi, Tmp2, ST->getSrcValue(), 14741e559443a17d1b335f697551c6263ba60d5dd827David Greene SVOffset, RoundVT, isVolatile, isNonTemporal, 14751e559443a17d1b335f697551c6263ba60d5dd827David Greene Alignment); 14767e857201f387d004571e6058e2ea709163500f38Duncan Sands 14777e857201f387d004571e6058e2ea709163500f38Duncan Sands // Store the remaining ExtraWidth bits. 14787e857201f387d004571e6058e2ea709163500f38Duncan Sands IncrementSize = RoundWidth / 8; 1479ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Tmp2 = DAG.getNode(ISD::ADD, dl, Tmp2.getValueType(), Tmp2, 14807e857201f387d004571e6058e2ea709163500f38Duncan Sands DAG.getIntPtrConstant(IncrementSize)); 1481ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Lo = DAG.getTruncStore(Tmp1, dl, Tmp3, Tmp2, ST->getSrcValue(), 14827e857201f387d004571e6058e2ea709163500f38Duncan Sands SVOffset + IncrementSize, ExtraVT, isVolatile, 14831e559443a17d1b335f697551c6263ba60d5dd827David Greene isNonTemporal, 14847e857201f387d004571e6058e2ea709163500f38Duncan Sands MinAlign(Alignment, IncrementSize)); 14857e857201f387d004571e6058e2ea709163500f38Duncan Sands } 1486c7029805ef35ce9805931067b841e6af11db382eChris Lattner 14877e857201f387d004571e6058e2ea709163500f38Duncan Sands // The order of the stores doesn't matter. 1488825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Result = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 14897e857201f387d004571e6058e2ea709163500f38Duncan Sands } else { 14907e857201f387d004571e6058e2ea709163500f38Duncan Sands if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || 14917e857201f387d004571e6058e2ea709163500f38Duncan Sands Tmp2 != ST->getBasePtr()) 1492027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Result = SDValue(DAG.UpdateNodeOperands(Result.getNode(), 1493027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Tmp1, Tmp3, Tmp2, 1494027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman ST->getOffset()), 1495027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman Result.getResNo()); 14967e857201f387d004571e6058e2ea709163500f38Duncan Sands 14977e857201f387d004571e6058e2ea709163500f38Duncan Sands switch (TLI.getTruncStoreAction(ST->getValue().getValueType(), StVT)) { 149835a389344d21178ee280c2410401b2060b5b879cChris Lattner default: assert(0 && "This action is not supported yet!"); 14997e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Legal: 15007e857201f387d004571e6058e2ea709163500f38Duncan Sands // If this is an unaligned store and the target doesn't support it, 15017e857201f387d004571e6058e2ea709163500f38Duncan Sands // expand it. 1502bc037cfcdef8e88274d7dd167fb9d8ba545f2229Benjamin Kramer if (!TLI.allowsUnalignedMemoryAccesses(ST->getMemoryVT())) { 1503e96507c73111d88743a15db6d6329f4fbdde7decEvan Cheng const Type *Ty = ST->getMemoryVT().getTypeForEVT(*DAG.getContext()); 15046e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach unsigned ABIAlignment= TLI.getTargetData()->getABITypeAlignment(Ty); 15057e857201f387d004571e6058e2ea709163500f38Duncan Sands if (ST->getAlignment() < ABIAlignment) 1506e96507c73111d88743a15db6d6329f4fbdde7decEvan Cheng Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.getNode()), 1507e96507c73111d88743a15db6d6329f4fbdde7decEvan Cheng DAG, TLI); 15087e857201f387d004571e6058e2ea709163500f38Duncan Sands } 15097e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 15107e857201f387d004571e6058e2ea709163500f38Duncan Sands case TargetLowering::Custom: 15117e857201f387d004571e6058e2ea709163500f38Duncan Sands Result = TLI.LowerOperation(Result, DAG); 15127e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 15137e857201f387d004571e6058e2ea709163500f38Duncan Sands case Expand: 15147e857201f387d004571e6058e2ea709163500f38Duncan Sands // TRUNCSTORE:i16 i32 -> STORE i16 15157e857201f387d004571e6058e2ea709163500f38Duncan Sands assert(isTypeLegal(StVT) && "Do not know how to expand this store!"); 1516ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Tmp3 = DAG.getNode(ISD::TRUNCATE, dl, StVT, Tmp3); 1517ca57b84729303d6f0c5abf951563efcde97010cdDale Johannesen Result = DAG.getStore(Tmp1, dl, Tmp3, Tmp2, ST->getSrcValue(), 15181e559443a17d1b335f697551c6263ba60d5dd827David Greene SVOffset, isVolatile, isNonTemporal, 15191e559443a17d1b335f697551c6263ba60d5dd827David Greene Alignment); 15207e857201f387d004571e6058e2ea709163500f38Duncan Sands break; 1521f3c13c82e34b8e90f1080cfe06c6f1328a2d44e1Lauro Ramos Venancio } 15228b2794aeff151be8cdbd44786c1d0f94f8f2e427Evan Cheng } 15233e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner } 15243e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner break; 1525f3fd9fe20dbcb40f3dffc1518ab955a0b5d6fa23Evan Cheng } 152645b8caf1c5a1fd8337038d64c6da8fba2d299fdfChris Lattner } 15274ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner assert(Result.getValueType() == Op.getValueType() && 15284ddd283f6928fc337c1bf3277566d7b31526e8d9Chris Lattner "Bad legalization!"); 1529fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 1530456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner // Make sure that the generated code is itself legal. 1531456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner if (Result != Op) 1532456a93afcec7740c45cafa8354317f7b17987a6dChris Lattner Result = LegalizeOp(Result); 15333e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 153445982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // Note that LegalizeOp may be reentered even from single-use nodes, which 153545982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner // means that we always must cache transformed nodes. 153645982dad53cd184fe8947a1b0206b0b16964f359Chris Lattner AddLegalizedOperand(Op, Result); 15373e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner return Result; 15383e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 15393e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 15403d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli FriedmanSDValue SelectionDAGLegalize::ExpandExtractFromVectorThroughStack(SDValue Op) { 15413d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman SDValue Vec = Op.getOperand(0); 15423d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman SDValue Idx = Op.getOperand(1); 15433d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman DebugLoc dl = Op.getDebugLoc(); 15443d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman // Store the value to a temporary stack slot, then LOAD the returned part. 15453d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman SDValue StackPtr = DAG.CreateStackTemporary(Vec.getValueType()); 15461e559443a17d1b335f697551c6263ba60d5dd827David Greene SDValue Ch = DAG.getStore(DAG.getEntryNode(), dl, Vec, StackPtr, NULL, 0, 15471e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, 0); 15483d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman 15493d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman // Add the offset to the index. 1550aa9d854b334cab2f29ca6d95413a0946b8a38429Dan Gohman unsigned EltSize = 1551aa9d854b334cab2f29ca6d95413a0946b8a38429Dan Gohman Vec.getValueType().getVectorElementType().getSizeInBits()/8; 15523d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman Idx = DAG.getNode(ISD::MUL, dl, Idx.getValueType(), Idx, 15533d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman DAG.getConstant(EltSize, Idx.getValueType())); 15543d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman 15553d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman if (Idx.getValueType().bitsGT(TLI.getPointerTy())) 15563d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman Idx = DAG.getNode(ISD::TRUNCATE, dl, TLI.getPointerTy(), Idx); 15573d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman else 15583d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman Idx = DAG.getNode(ISD::ZERO_EXTEND, dl, TLI.getPointerTy(), Idx); 15593d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman 15603d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman StackPtr = DAG.getNode(ISD::ADD, dl, Idx.getValueType(), Idx, StackPtr); 15613d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman 1562c680ac90032bf455b2bba77de538fccea08eb267Eli Friedman if (Op.getValueType().isVector()) 1563ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getLoad(Op.getValueType(), dl, Ch, StackPtr,MachinePointerInfo(), 15641e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, 0); 1565c680ac90032bf455b2bba77de538fccea08eb267Eli Friedman else 1566bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng return DAG.getExtLoad(ISD::EXTLOAD, Op.getValueType(), dl, Ch, StackPtr, 1567ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MachinePointerInfo(), 1568ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Vec.getValueType().getVectorElementType(), 15691e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, 0); 15703d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman} 15713d43b3f6d7e1d3516052f20bf2d14727ebddb8ffEli Friedman 15727ef3d178660b82d1571757e49f44b004d772a116Eli FriedmanSDValue SelectionDAGLegalize::ExpandVectorBuildThroughStack(SDNode* Node) { 15737ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // We can't handle this case efficiently. Allocate a sufficiently 15747ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // aligned object on the stack, store each element into it, then load 15757ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // the result as a vector. 15767ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // Create the stack frame object. 1577e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Node->getValueType(0); 15785b8bce11d60694a651965cf019b9cb5d84ed3b90Dale Johannesen EVT EltVT = VT.getVectorElementType(); 15797ef3d178660b82d1571757e49f44b004d772a116Eli Friedman DebugLoc dl = Node->getDebugLoc(); 15807ef3d178660b82d1571757e49f44b004d772a116Eli Friedman SDValue FIPtr = DAG.CreateStackTemporary(VT); 1581ff89dcb06fbd103373436e2d0ae85f252fae2254Evan Cheng int FI = cast<FrameIndexSDNode>(FIPtr.getNode())->getIndex(); 1582ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MachinePointerInfo PtrInfo = MachinePointerInfo::getFixedStack(FI); 15837ef3d178660b82d1571757e49f44b004d772a116Eli Friedman 15847ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // Emit a store of each element to the stack slot. 15857ef3d178660b82d1571757e49f44b004d772a116Eli Friedman SmallVector<SDValue, 8> Stores; 1586aa9d854b334cab2f29ca6d95413a0946b8a38429Dan Gohman unsigned TypeByteSize = EltVT.getSizeInBits() / 8; 15877ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // Store (in the right endianness) the elements to memory. 15887ef3d178660b82d1571757e49f44b004d772a116Eli Friedman for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 15897ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // Ignore undef elements. 15907ef3d178660b82d1571757e49f44b004d772a116Eli Friedman if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; 15917ef3d178660b82d1571757e49f44b004d772a116Eli Friedman 15927ef3d178660b82d1571757e49f44b004d772a116Eli Friedman unsigned Offset = TypeByteSize*i; 15937ef3d178660b82d1571757e49f44b004d772a116Eli Friedman 15947ef3d178660b82d1571757e49f44b004d772a116Eli Friedman SDValue Idx = DAG.getConstant(Offset, FIPtr.getValueType()); 15957ef3d178660b82d1571757e49f44b004d772a116Eli Friedman Idx = DAG.getNode(ISD::ADD, dl, FIPtr.getValueType(), FIPtr, Idx); 15967ef3d178660b82d1571757e49f44b004d772a116Eli Friedman 15979949dd612c8100f7ea7e6daaa56e465f106dd0bdDan Gohman // If the destination vector element type is narrower than the source 15989949dd612c8100f7ea7e6daaa56e465f106dd0bdDan Gohman // element type, only store the bits necessary. 15999949dd612c8100f7ea7e6daaa56e465f106dd0bdDan Gohman if (EltVT.bitsLT(Node->getOperand(i).getValueType().getScalarType())) { 16005b8bce11d60694a651965cf019b9cb5d84ed3b90Dale Johannesen Stores.push_back(DAG.getTruncStore(DAG.getEntryNode(), dl, 1601ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Node->getOperand(i), Idx, 1602ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner PtrInfo.getWithOffset(Offset), 16031e559443a17d1b335f697551c6263ba60d5dd827David Greene EltVT, false, false, 0)); 1604eb38ebf15c326a5bb45ca9da6329cdf19ad6df95Mon P Wang } else 16056e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach Stores.push_back(DAG.getStore(DAG.getEntryNode(), dl, 1606ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Node->getOperand(i), Idx, 1607ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner PtrInfo.getWithOffset(Offset), 16081e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, 0)); 16097ef3d178660b82d1571757e49f44b004d772a116Eli Friedman } 16107ef3d178660b82d1571757e49f44b004d772a116Eli Friedman 16117ef3d178660b82d1571757e49f44b004d772a116Eli Friedman SDValue StoreChain; 16127ef3d178660b82d1571757e49f44b004d772a116Eli Friedman if (!Stores.empty()) // Not all undef elements? 1613825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson StoreChain = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, 16147ef3d178660b82d1571757e49f44b004d772a116Eli Friedman &Stores[0], Stores.size()); 16157ef3d178660b82d1571757e49f44b004d772a116Eli Friedman else 16167ef3d178660b82d1571757e49f44b004d772a116Eli Friedman StoreChain = DAG.getEntryNode(); 16177ef3d178660b82d1571757e49f44b004d772a116Eli Friedman 16187ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // Result is a load from the stack slot. 1619ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getLoad(VT, dl, StoreChain, FIPtr, PtrInfo, false, false, 0); 16207ef3d178660b82d1571757e49f44b004d772a116Eli Friedman} 16217ef3d178660b82d1571757e49f44b004d772a116Eli Friedman 16224bc8c718218159fe410462f6e3670e7cb76c0c04Eli FriedmanSDValue SelectionDAGLegalize::ExpandFCOPYSIGN(SDNode* Node) { 16234bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman DebugLoc dl = Node->getDebugLoc(); 16244bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue Tmp1 = Node->getOperand(0); 16254bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue Tmp2 = Node->getOperand(1); 16265d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands 16275d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands // Get the sign bit of the RHS. First obtain a value that has the same 16285d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands // sign as the sign bit, i.e. negative if and only if the sign bit is 1. 16294bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue SignBit; 16305d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands EVT FloatVT = Tmp2.getValueType(); 16315d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands EVT IVT = EVT::getIntegerVT(*DAG.getContext(), FloatVT.getSizeInBits()); 16324bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman if (isTypeLegal(IVT)) { 16335d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands // Convert to an integer with the same sign bit. 16344bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SignBit = DAG.getNode(ISD::BIT_CONVERT, dl, IVT, Tmp2); 16354bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman } else { 16365d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands // Store the float to memory, then load the sign part out as an integer. 16375d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands MVT LoadTy = TLI.getPointerTy(); 16385d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands // First create a temporary that is aligned for both the load and store. 16395d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands SDValue StackPtr = DAG.CreateStackTemporary(FloatVT, LoadTy); 16405d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands // Then store the float to it. 16414bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue Ch = 16425d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands DAG.getStore(DAG.getEntryNode(), dl, Tmp2, StackPtr, NULL, 0, 16431e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, 0); 16445d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands if (TLI.isBigEndian()) { 16455d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands assert(FloatVT.isByteSized() && "Unsupported floating point type!"); 16465d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands // Load out a legal integer with the same sign bit as the float. 1647ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner SignBit = DAG.getLoad(LoadTy, dl, Ch, StackPtr, MachinePointerInfo(), 1648ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner false, false, 0); 16495d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands } else { // Little endian 16505d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands SDValue LoadPtr = StackPtr; 16515d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands // The float may be wider than the integer we are going to load. Advance 16525d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands // the pointer so that the loaded integer will contain the sign bit. 16535d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands unsigned Strides = (FloatVT.getSizeInBits()-1)/LoadTy.getSizeInBits(); 16545d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands unsigned ByteOffset = (Strides * LoadTy.getSizeInBits()) / 8; 16555d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands LoadPtr = DAG.getNode(ISD::ADD, dl, LoadPtr.getValueType(), 16565d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands LoadPtr, DAG.getIntPtrConstant(ByteOffset)); 16575d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands // Load a legal integer containing the sign bit. 1658ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner SignBit = DAG.getLoad(LoadTy, dl, Ch, LoadPtr, MachinePointerInfo(), 1659ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner false, false, 0); 16605d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands // Move the sign bit to the top bit of the loaded integer. 16615d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands unsigned BitShift = LoadTy.getSizeInBits() - 16625d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands (FloatVT.getSizeInBits() - 8 * ByteOffset); 16635d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands assert(BitShift < LoadTy.getSizeInBits() && "Pointer advanced wrong?"); 16645d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands if (BitShift) 16655d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands SignBit = DAG.getNode(ISD::SHL, dl, LoadTy, SignBit, 16665d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands DAG.getConstant(BitShift,TLI.getShiftAmountTy())); 16675d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands } 16684bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman } 16695d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands // Now get the sign bit proper, by seeing whether the value is negative. 16705d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands SignBit = DAG.getSetCC(dl, TLI.getSetCCResultType(SignBit.getValueType()), 16715d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands SignBit, DAG.getConstant(0, SignBit.getValueType()), 16725d54b4112d7b8bcd49a07e398ebff263fac1eb9cDuncan Sands ISD::SETLT); 16734bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // Get the absolute value of the result. 16744bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue AbsVal = DAG.getNode(ISD::FABS, dl, Tmp1.getValueType(), Tmp1); 16754bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // Select between the nabs and abs value based on the sign bit of 16764bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // the input. 16774bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman return DAG.getNode(ISD::SELECT, dl, AbsVal.getValueType(), SignBit, 16784bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman DAG.getNode(ISD::FNEG, dl, AbsVal.getValueType(), AbsVal), 16794bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman AbsVal); 16804bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman} 16814bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman 16824bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedmanvoid SelectionDAGLegalize::ExpandDYNAMIC_STACKALLOC(SDNode* Node, 16834bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SmallVectorImpl<SDValue> &Results) { 16844bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); 16854bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" 16864bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman " not tell us which reg is the stack pointer!"); 16874bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman DebugLoc dl = Node->getDebugLoc(); 1688e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Node->getValueType(0); 16894bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue Tmp1 = SDValue(Node, 0); 16904bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue Tmp2 = SDValue(Node, 1); 16914bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue Tmp3 = Node->getOperand(2); 16924bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue Chain = Tmp1.getOperand(0); 16934bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman 16944bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // Chain the dynamic stack allocation so that it doesn't modify the stack 16954bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // pointer when other instructions are using the stack. 16964bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(0, true)); 16974bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman 16984bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue Size = Tmp2.getOperand(1); 16994bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue SP = DAG.getCopyFromReg(Chain, dl, SPReg, VT); 17004bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman Chain = SP.getValue(1); 17014bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman unsigned Align = cast<ConstantSDNode>(Tmp3)->getZExtValue(); 170255e59c186303ff02c0be7429da3b1b36c347f164Dan Gohman unsigned StackAlign = TM.getFrameInfo()->getStackAlignment(); 17034bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman if (Align > StackAlign) 17044bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SP = DAG.getNode(ISD::AND, dl, VT, SP, 17054bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman DAG.getConstant(-(uint64_t)Align, VT)); 17064bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman Tmp1 = DAG.getNode(ISD::SUB, dl, VT, SP, Size); // Value 17074bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman Chain = DAG.getCopyToReg(Chain, dl, SPReg, Tmp1); // Output chain 17084bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman 17094bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman Tmp2 = DAG.getCALLSEQ_END(Chain, DAG.getIntPtrConstant(0, true), 17104bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman DAG.getIntPtrConstant(0, true), SDValue()); 17114bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman 17124bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman Results.push_back(Tmp1); 17134bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman Results.push_back(Tmp2); 17144bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman} 17154bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman 17167f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng/// LegalizeSetCCCondCode - Legalize a SETCC with given LHS and RHS and 1717f77fc92b03efe455008474894d217282e2a03cadDan Gohman/// condition code CC on the current target. This routine expands SETCC with 17187f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng/// illegal condition code into AND / OR of multiple SETCC values. 1719e50ed30282bb5b4a9ed952580523f2dda16215acOwen Andersonvoid SelectionDAGLegalize::LegalizeSetCCCondCode(EVT VT, 17207f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng SDValue &LHS, SDValue &RHS, 1721bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen SDValue &CC, 1722775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling DebugLoc dl) { 1723e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OpVT = LHS.getValueType(); 17247f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); 17257f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng switch (TLI.getCondCodeAction(CCCode, OpVT)) { 172635a389344d21178ee280c2410401b2060b5b879cChris Lattner default: assert(0 && "Unknown condition code action!"); 17277f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng case TargetLowering::Legal: 17287f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng // Nothing to do. 17297f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng break; 17307f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng case TargetLowering::Expand: { 17317f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng ISD::CondCode CC1 = ISD::SETCC_INVALID, CC2 = ISD::SETCC_INVALID; 17327f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng unsigned Opc = 0; 17337f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng switch (CCCode) { 173435a389344d21178ee280c2410401b2060b5b879cChris Lattner default: assert(0 && "Don't know how to expand this condition!"); 1735e7d238ea239e6ab8a2c60ecd27468f3cfc1bb08bDan Gohman case ISD::SETOEQ: CC1 = ISD::SETEQ; CC2 = ISD::SETO; Opc = ISD::AND; break; 1736e7d238ea239e6ab8a2c60ecd27468f3cfc1bb08bDan Gohman case ISD::SETOGT: CC1 = ISD::SETGT; CC2 = ISD::SETO; Opc = ISD::AND; break; 1737e7d238ea239e6ab8a2c60ecd27468f3cfc1bb08bDan Gohman case ISD::SETOGE: CC1 = ISD::SETGE; CC2 = ISD::SETO; Opc = ISD::AND; break; 1738e7d238ea239e6ab8a2c60ecd27468f3cfc1bb08bDan Gohman case ISD::SETOLT: CC1 = ISD::SETLT; CC2 = ISD::SETO; Opc = ISD::AND; break; 1739e7d238ea239e6ab8a2c60ecd27468f3cfc1bb08bDan Gohman case ISD::SETOLE: CC1 = ISD::SETLE; CC2 = ISD::SETO; Opc = ISD::AND; break; 1740e7d238ea239e6ab8a2c60ecd27468f3cfc1bb08bDan Gohman case ISD::SETONE: CC1 = ISD::SETNE; CC2 = ISD::SETO; Opc = ISD::AND; break; 1741e7d238ea239e6ab8a2c60ecd27468f3cfc1bb08bDan Gohman case ISD::SETUEQ: CC1 = ISD::SETEQ; CC2 = ISD::SETUO; Opc = ISD::OR; break; 1742e7d238ea239e6ab8a2c60ecd27468f3cfc1bb08bDan Gohman case ISD::SETUGT: CC1 = ISD::SETGT; CC2 = ISD::SETUO; Opc = ISD::OR; break; 1743e7d238ea239e6ab8a2c60ecd27468f3cfc1bb08bDan Gohman case ISD::SETUGE: CC1 = ISD::SETGE; CC2 = ISD::SETUO; Opc = ISD::OR; break; 1744e7d238ea239e6ab8a2c60ecd27468f3cfc1bb08bDan Gohman case ISD::SETULT: CC1 = ISD::SETLT; CC2 = ISD::SETUO; Opc = ISD::OR; break; 1745e7d238ea239e6ab8a2c60ecd27468f3cfc1bb08bDan Gohman case ISD::SETULE: CC1 = ISD::SETLE; CC2 = ISD::SETUO; Opc = ISD::OR; break; 1746e7d238ea239e6ab8a2c60ecd27468f3cfc1bb08bDan Gohman case ISD::SETUNE: CC1 = ISD::SETNE; CC2 = ISD::SETUO; Opc = ISD::OR; break; 17477f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng // FIXME: Implement more expansions. 17487f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng } 17497f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng 1750bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen SDValue SetCC1 = DAG.getSetCC(dl, VT, LHS, RHS, CC1); 1751bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen SDValue SetCC2 = DAG.getSetCC(dl, VT, LHS, RHS, CC2); 1752bb5da918545efb54857a09c983a5a7f22a7e04d4Dale Johannesen LHS = DAG.getNode(Opc, dl, VT, SetCC1, SetCC2); 17537f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng RHS = SDValue(); 17547f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng CC = SDValue(); 17557f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng break; 17567f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng } 17577f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng } 17587f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng} 17597f042681764c6f8eae22781d8b4cb4c218a86b76Evan Cheng 17601401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// EmitStackConvert - Emit a store/load combination to the stack. This stores 17611401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// SrcOp to a stack slot of type SlotVT, truncating it if needed. It then does 17621401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// a load from the stack slot to DestVT, extending it if needed. 17631401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner/// The resultant code need not be legal. 1764475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::EmitStackConvert(SDValue SrcOp, 1765e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SlotVT, 1766e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT DestVT, 17678a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen DebugLoc dl) { 176835481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Create the stack frame object. 1769ec15bbfd2f8a3667313dcfa0f9a11497ae6732b8Bob Wilson unsigned SrcAlign = 1770ec15bbfd2f8a3667313dcfa0f9a11497ae6732b8Bob Wilson TLI.getTargetData()->getPrefTypeAlignment(SrcOp.getValueType(). 177123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson getTypeForEVT(*DAG.getContext())); 1772475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue FIPtr = DAG.CreateStackTemporary(SlotVT, SrcAlign); 1773fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 1774ff89dcb06fbd103373436e2d0ae85f252fae2254Evan Cheng FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(FIPtr); 1775ff89dcb06fbd103373436e2d0ae85f252fae2254Evan Cheng int SPFI = StackPtrFI->getIndex(); 1776ff89dcb06fbd103373436e2d0ae85f252fae2254Evan Cheng const Value *SV = PseudoSourceValue::getFixedStack(SPFI); 1777ff89dcb06fbd103373436e2d0ae85f252fae2254Evan Cheng 177883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned SrcSize = SrcOp.getValueType().getSizeInBits(); 177983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned SlotSize = SlotVT.getSizeInBits(); 178083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned DestSize = DestVT.getSizeInBits(); 1781adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng const Type *DestType = DestVT.getTypeForEVT(*DAG.getContext()); 1782adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng unsigned DestAlign = TLI.getTargetData()->getPrefTypeAlignment(DestType); 1783fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 17841401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // Emit a store to the stack slot. Use a truncstore if the input value is 17851401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner // later than DestVT. 1786475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Store; 1787ff89dcb06fbd103373436e2d0ae85f252fae2254Evan Cheng 17881401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SrcSize > SlotSize) 17898a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Store = DAG.getTruncStore(DAG.getEntryNode(), dl, SrcOp, FIPtr, 17901e559443a17d1b335f697551c6263ba60d5dd827David Greene SV, 0, SlotVT, false, false, SrcAlign); 17911401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner else { 17921401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SrcSize == SlotSize && "Invalid store"); 17938a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Store = DAG.getStore(DAG.getEntryNode(), dl, SrcOp, FIPtr, 17941e559443a17d1b335f697551c6263ba60d5dd827David Greene SV, 0, false, false, SrcAlign); 17951401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner } 1796fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 179735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner // Result is a load from the stack slot. 17981401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner if (SlotSize == DestSize) 1799ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getLoad(DestVT, dl, Store, FIPtr, MachinePointerInfo(SV), 1800ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner false, false, DestAlign); 1801fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 18021401d15c99b284ead81b8476a6db95328c5f28fdChris Lattner assert(SlotSize < DestSize && "Unknown extension!"); 1803ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getExtLoad(ISD::EXTLOAD, DestVT, dl, Store, FIPtr, 1804ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MachinePointerInfo(SV), SlotVT, 18051e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, DestAlign); 180635481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner} 180735481892da1e5634bf497c8a0cabb1bb5a8b8fefChris Lattner 1808475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { 18098a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen DebugLoc dl = Node->getDebugLoc(); 18104352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // Create a vector sized/aligned stack slot, store the value to element #0, 18114352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner // then load the whole vector back out. 1812475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue StackPtr = DAG.CreateStackTemporary(Node->getValueType(0)); 181369de1932b350d7cdfc0ed1f4198d6f78c7822a02Dan Gohman 1814ff89dcb06fbd103373436e2d0ae85f252fae2254Evan Cheng FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(StackPtr); 1815ff89dcb06fbd103373436e2d0ae85f252fae2254Evan Cheng int SPFI = StackPtrFI->getIndex(); 1816ff89dcb06fbd103373436e2d0ae85f252fae2254Evan Cheng 1817b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands SDValue Ch = DAG.getTruncStore(DAG.getEntryNode(), dl, Node->getOperand(0), 1818b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands StackPtr, 181985ca1066328639119f94c47a83b698c48b84ebb0Chris Lattner MachinePointerInfo::getFixedStack(SPFI), 18201e559443a17d1b335f697551c6263ba60d5dd827David Greene Node->getValueType(0).getVectorElementType(), 18211e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, 0); 18228a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen return DAG.getLoad(Node->getValueType(0), dl, Ch, StackPtr, 182385ca1066328639119f94c47a83b698c48b84ebb0Chris Lattner MachinePointerInfo::getFixedStack(SPFI), 18241e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, 0); 18254352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner} 18264352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 18274352cc9e217e4482ad53f5a7b92c3543f569eb6eChris Lattner 1828ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner/// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't 182907a96765daedf180a7102d39fe56c499878312b7Dan Gohman/// support the operation, but do support the resultant vector type. 1830475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { 183126cbf9eb99c779b8992f4865c6cf308318d39723Bob Wilson unsigned NumElems = Node->getNumOperands(); 18327a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman SDValue Value1, Value2; 183326cbf9eb99c779b8992f4865c6cf308318d39723Bob Wilson DebugLoc dl = Node->getDebugLoc(); 1834e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Node->getValueType(0); 1835e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OpVT = Node->getOperand(0).getValueType(); 1836e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EltVT = VT.getVectorElementType(); 1837fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 1838fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel // If the only non-undef value is the low element, turn this into a 183987100e0b83b808757bf44dabecd1d1048255d1adChris Lattner // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. 1840ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner bool isOnlyLowElement = true; 18417a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman bool MoreThanTwoValues = false; 18422eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner bool isConstant = true; 18437a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman for (unsigned i = 0; i < NumElems; ++i) { 1844475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue V = Node->getOperand(i); 18457a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman if (V.getOpcode() == ISD::UNDEF) 18467a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman continue; 18477a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman if (i > 0) 1848ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner isOnlyLowElement = false; 18497a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V)) 18502eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner isConstant = false; 18517a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman 18527a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman if (!Value1.getNode()) { 18537a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman Value1 = V; 18547a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman } else if (!Value2.getNode()) { 18557a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman if (V != Value1) 18567a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman Value2 = V; 18577a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman } else if (V != Value1 && V != Value2) { 18587a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman MoreThanTwoValues = true; 18597a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman } 1860ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1861fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 18627a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman if (!Value1.getNode()) 18637a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman return DAG.getUNDEF(VT); 18647a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman 18657a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman if (isOnlyLowElement) 186626cbf9eb99c779b8992f4865c6cf308318d39723Bob Wilson return DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, VT, Node->getOperand(0)); 1867fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 18682eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // If all elements are constants, create a load from the constant pool. 1869ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner if (isConstant) { 1870ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner std::vector<Constant*> CV; 1871033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng for (unsigned i = 0, e = NumElems; i != e; ++i) { 1872fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel if (ConstantFPSDNode *V = 1873ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { 18744fbd796a1251a27e6590765a0a34876f436a0af9Dan Gohman CV.push_back(const_cast<ConstantFP *>(V->getConstantFPValue())); 1875fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel } else if (ConstantSDNode *V = 1876ec15bbfd2f8a3667313dcfa0f9a11497ae6732b8Bob Wilson dyn_cast<ConstantSDNode>(Node->getOperand(i))) { 18779a645cd9d4c0e7d25e4b8836ed31deb5881c8101Dale Johannesen if (OpVT==EltVT) 18789a645cd9d4c0e7d25e4b8836ed31deb5881c8101Dale Johannesen CV.push_back(const_cast<ConstantInt *>(V->getConstantIntValue())); 18799a645cd9d4c0e7d25e4b8836ed31deb5881c8101Dale Johannesen else { 18809a645cd9d4c0e7d25e4b8836ed31deb5881c8101Dale Johannesen // If OpVT and EltVT don't match, EltVT is not legal and the 18819a645cd9d4c0e7d25e4b8836ed31deb5881c8101Dale Johannesen // element values have been promoted/truncated earlier. Undo this; 18829a645cd9d4c0e7d25e4b8836ed31deb5881c8101Dale Johannesen // we don't want a v16i8 to become a v16i32 for example. 18839a645cd9d4c0e7d25e4b8836ed31deb5881c8101Dale Johannesen const ConstantInt *CI = V->getConstantIntValue(); 18849a645cd9d4c0e7d25e4b8836ed31deb5881c8101Dale Johannesen CV.push_back(ConstantInt::get(EltVT.getTypeForEVT(*DAG.getContext()), 18859a645cd9d4c0e7d25e4b8836ed31deb5881c8101Dale Johannesen CI->getZExtValue())); 18869a645cd9d4c0e7d25e4b8836ed31deb5881c8101Dale Johannesen } 1887ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } else { 1888ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); 18899a645cd9d4c0e7d25e4b8836ed31deb5881c8101Dale Johannesen const Type *OpNTy = EltVT.getTypeForEVT(*DAG.getContext()); 18909e9a0d5fc26878e51a58a8b57900fcbf952c2691Owen Anderson CV.push_back(UndefValue::get(OpNTy)); 1891ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1892ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1893af7ec975870f92245f1f1484ac80a1e2db6a0afaOwen Anderson Constant *CP = ConstantVector::get(CV); 1894475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); 18951606e8e4cd937e6de6681f686c266cf61722d972Evan Cheng unsigned Alignment = cast<ConstantPoolSDNode>(CPIdx)->getAlignment(); 18968a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen return DAG.getLoad(VT, dl, DAG.getEntryNode(), CPIdx, 189785ca1066328639119f94c47a83b698c48b84ebb0Chris Lattner MachinePointerInfo::getConstantPool(), 18981e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, Alignment); 1899ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner } 1900fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 19017a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman if (!MoreThanTwoValues) { 19027a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman SmallVector<int, 8> ShuffleVec(NumElems, -1); 19037a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman for (unsigned i = 0; i < NumElems; ++i) { 19047a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman SDValue V = Node->getOperand(i); 19057a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman if (V.getOpcode() == ISD::UNDEF) 19067a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman continue; 19077a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman ShuffleVec[i] = V == Value1 ? 0 : NumElems; 19087a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman } 19097a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman if (TLI.isShuffleMaskLegal(ShuffleVec, Node->getValueType(0))) { 19102eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Get the splatted value into the low element of a vector register. 19117a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman SDValue Vec1 = DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, VT, Value1); 19127a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman SDValue Vec2; 19137a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman if (Value2.getNode()) 19147a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman Vec2 = DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, VT, Value2); 19157a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman else 19167a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman Vec2 = DAG.getUNDEF(VT); 1917fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 19182eb8653157ccd318b357af74bfd517c76ef166b8Chris Lattner // Return shuffle(LowValVec, undef, <0,0,0,0>) 19197a5e55509b99d579d56d126a7b503ec6fe153a8fEli Friedman return DAG.getVectorShuffle(VT, dl, Vec1, Vec2, ShuffleVec.data()); 1920033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 1921033e6816668da71ff0866a61f5c0a7e7e795d069Evan Cheng } 1922fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 19237ef3d178660b82d1571757e49f44b004d772a116Eli Friedman // Otherwise, we can't handle this case efficiently. 19247ef3d178660b82d1571757e49f44b004d772a116Eli Friedman return ExpandVectorBuildThroughStack(Node); 1925ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner} 1926ce87215131efcc68dcf7fca61055ad783a7aeb0eChris Lattner 192777e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// ExpandLibCall - Expand a node into a call to a libcall. If the result value 192877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// does not fit into a register, return the lo part and set the hi part to the 192977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// by-reg argument. If it does fit into a single register, return the result 193077e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner// and leave the Hi part unset. 1931475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandLibCall(RTLIB::Libcall LC, SDNode *Node, 193247b41f7e20b6af7aaaf0e050200102d55d038b9dEli Friedman bool isSigned) { 19336831a815999dde4cf801e2076e66b4943964daf2Chris Lattner assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 1934fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel // The input chain to this libcall is the entry node of the function. 19356831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalizing the call will automatically add the previous call to the 19366831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // dependence. 1937475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InChain = DAG.getEntryNode(); 1938fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 193977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner TargetLowering::ArgListTy Args; 194047857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer TargetLowering::ArgListEntry Entry; 194177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { 1942e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ArgVT = Node->getOperand(i).getValueType(); 194323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson const Type *ArgTy = ArgVT.getTypeForEVT(*DAG.getContext()); 1944fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; 1945d0b82b301d700217a716526f9329bb031e0d6578Anton Korobeynikov Entry.isSExt = isSigned; 194600fee65fd21f9615d1a604b8b7d42cd16a3f6b47Duncan Sands Entry.isZExt = !isSigned; 194747857812e29324a9d1560796a05b53d3a9217fd9Reid Spencer Args.push_back(Entry); 194877e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner } 1949056292fd738924f3f7703725d8f630983794b5a5Bill Wendling SDValue Callee = DAG.getExternalSymbol(TLI.getLibcallName(LC), 19500c39719bfc7d0b3e61fbd55e1115184a1d5f6ae7Mon P Wang TLI.getPointerTy()); 1951edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 19520d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner // Splice the libcall in wherever FindInputOutputChains tells us to. 195323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson const Type *RetTy = Node->getValueType(0).getTypeForEVT(*DAG.getContext()); 1954ec15bbfd2f8a3667313dcfa0f9a11497ae6732b8Bob Wilson std::pair<SDValue, SDValue> CallInfo = 195586098bd6a63d2cdf0c9be9ef3151bd2728281fd7Dale Johannesen TLI.LowerCallTo(InChain, RetTy, isSigned, !isSigned, false, false, 195672977a45a8ad9d9524c9b49399e89fb9a3a676edAnton Korobeynikov 0, TLI.getLibcallCallingConv(LC), false, 195798ca4f2a325f72374a477f9deba7d09e8999c29bDan Gohman /*isReturnValueUsed=*/true, 195846ada19645c981a0b7932487d163f7582074a4d9Bill Wendling Callee, Args, DAG, Node->getDebugLoc()); 19590d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 19606831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // Legalize the call sequence, starting with the chain. This will advance 19616831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 19626831a815999dde4cf801e2076e66b4943964daf2Chris Lattner // was added by LowerCallTo (guaranteeing proper serialization of calls). 19636831a815999dde4cf801e2076e66b4943964daf2Chris Lattner LegalizeOp(CallInfo.second); 196474807f2520715056be399a2bc59dfc8b6f8f3eb2Eli Friedman return CallInfo.first; 196522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 196622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 1967e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach// ExpandChainLibCall - Expand a node into a call to a libcall. Similar to 1968e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach// ExpandLibCall except that the first operand is the in-chain. 1969e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbachstd::pair<SDValue, SDValue> 1970e03262fcfc09356a0e3ec589041bc2e0248944e9Jim GrosbachSelectionDAGLegalize::ExpandChainLibCall(RTLIB::Libcall LC, 1971e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach SDNode *Node, 1972e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach bool isSigned) { 1973e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); 1974e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach SDValue InChain = Node->getOperand(0); 1975e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach 1976e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach TargetLowering::ArgListTy Args; 1977e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach TargetLowering::ArgListEntry Entry; 1978e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach for (unsigned i = 1, e = Node->getNumOperands(); i != e; ++i) { 1979e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach EVT ArgVT = Node->getOperand(i).getValueType(); 1980e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach const Type *ArgTy = ArgVT.getTypeForEVT(*DAG.getContext()); 1981e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach Entry.Node = Node->getOperand(i); 1982e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach Entry.Ty = ArgTy; 1983e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach Entry.isSExt = isSigned; 1984e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach Entry.isZExt = !isSigned; 1985e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach Args.push_back(Entry); 1986e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach } 1987e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach SDValue Callee = DAG.getExternalSymbol(TLI.getLibcallName(LC), 1988e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach TLI.getPointerTy()); 1989e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach 1990e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach // Splice the libcall in wherever FindInputOutputChains tells us to. 1991e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach const Type *RetTy = Node->getValueType(0).getTypeForEVT(*DAG.getContext()); 1992e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach std::pair<SDValue, SDValue> CallInfo = 1993e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach TLI.LowerCallTo(InChain, RetTy, isSigned, !isSigned, false, false, 1994e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach 0, TLI.getLibcallCallingConv(LC), false, 1995e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach /*isReturnValueUsed=*/true, 1996e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach Callee, Args, DAG, Node->getDebugLoc()); 1997e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach 1998e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach // Legalize the call sequence, starting with the chain. This will advance 1999e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that 2000e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach // was added by LowerCallTo (guaranteeing proper serialization of calls). 2001e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach LegalizeOp(CallInfo.second); 2002e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach return CallInfo; 2003e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach} 2004e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach 2005f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli FriedmanSDValue SelectionDAGLegalize::ExpandFPLibCall(SDNode* Node, 2006f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman RTLIB::Libcall Call_F32, 2007f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman RTLIB::Libcall Call_F64, 2008f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman RTLIB::Libcall Call_F80, 2009f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman RTLIB::Libcall Call_PPCF128) { 2010f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman RTLIB::Libcall LC; 2011825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson switch (Node->getValueType(0).getSimpleVT().SimpleTy) { 201235a389344d21178ee280c2410401b2060b5b879cChris Lattner default: assert(0 && "Unexpected request for libcall!"); 2013825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson case MVT::f32: LC = Call_F32; break; 2014825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson case MVT::f64: LC = Call_F64; break; 2015825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson case MVT::f80: LC = Call_F80; break; 2016825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson case MVT::ppcf128: LC = Call_PPCF128; break; 2017f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman } 2018f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman return ExpandLibCall(LC, Node, false); 2019f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman} 2020f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman 2021f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli FriedmanSDValue SelectionDAGLegalize::ExpandIntLibCall(SDNode* Node, bool isSigned, 20228983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov RTLIB::Libcall Call_I8, 2023f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman RTLIB::Libcall Call_I16, 2024f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman RTLIB::Libcall Call_I32, 2025f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman RTLIB::Libcall Call_I64, 2026f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman RTLIB::Libcall Call_I128) { 2027f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman RTLIB::Libcall LC; 2028825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson switch (Node->getValueType(0).getSimpleVT().SimpleTy) { 202935a389344d21178ee280c2410401b2060b5b879cChris Lattner default: assert(0 && "Unexpected request for libcall!"); 20308983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov case MVT::i8: LC = Call_I8; break; 20318983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov case MVT::i16: LC = Call_I16; break; 20328983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov case MVT::i32: LC = Call_I32; break; 20338983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov case MVT::i64: LC = Call_I64; break; 2034825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson case MVT::i128: LC = Call_I128; break; 2035f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman } 2036f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman return ExpandLibCall(LC, Node, isSigned); 2037f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman} 2038f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman 203922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandLegalINT_TO_FP - This function is responsible for legalizing a 204022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// INT_TO_FP operation of the specified operand when the target requests that 204122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we expand it. At this point, we know that the result and operand types are 204222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target. 2043475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, 2044475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op0, 2045e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT DestVT, 2046af435274e56af687b51f33b5bc6f005fe99ad46fDale Johannesen DebugLoc dl) { 2047825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (Op0.getValueType() == MVT::i32) { 204822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // simple 32-bit [signed|unsigned] integer to float/double expansion 2049fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 205023594d4537fb88a963c6d6993af5027eac9bfbacChris Lattner // Get the stack frame index of a 8 byte buffer. 2051825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson SDValue StackSlot = DAG.CreateStackTemporary(MVT::f64); 2052fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 205322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // word offset constant for Hi/Lo address computation 2054475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); 205522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // set up Hi and Lo (into buffer) address based on endian 2056475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Hi = StackSlot; 2057fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel SDValue Lo = DAG.getNode(ISD::ADD, dl, 2058ec15bbfd2f8a3667313dcfa0f9a11497ae6732b8Bob Wilson TLI.getPointerTy(), StackSlot, WordOff); 2059408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner if (TLI.isLittleEndian()) 2060408c428096df3a3970a8387f9dd258ae948663a6Chris Lattner std::swap(Hi, Lo); 2061fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 206222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // if signed map to unsigned space 2063475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op0Mapped; 206422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) { 206522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // constant used to invert sign bit (signed to unsigned mapping) 2066825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson SDValue SignBit = DAG.getConstant(0x80000000u, MVT::i32); 2067825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Op0Mapped = DAG.getNode(ISD::XOR, dl, MVT::i32, Op0, SignBit); 206822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } else { 206922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Op0Mapped = Op0; 207022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 207122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the lo of the constructed double - based on integer input 2072af435274e56af687b51f33b5bc6f005fe99ad46fDale Johannesen SDValue Store1 = DAG.getStore(DAG.getEntryNode(), dl, 20731e559443a17d1b335f697551c6263ba60d5dd827David Greene Op0Mapped, Lo, NULL, 0, 20741e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, 0); 207522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // initial hi portion of constructed double 2076825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson SDValue InitialHi = DAG.getConstant(0x43300000u, MVT::i32); 207722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // store the hi of the constructed double - biased exponent 20781e559443a17d1b335f697551c6263ba60d5dd827David Greene SDValue Store2=DAG.getStore(Store1, dl, InitialHi, Hi, NULL, 0, 20791e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, 0); 208022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // load the constructed double 2081ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner SDValue Load = DAG.getLoad(MVT::f64, dl, Store2, StackSlot, 2082ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MachinePointerInfo(), false, false, 0); 208322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // FP constant to bias correct the final result 2084475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Bias = DAG.getConstantFP(isSigned ? 2085ec15bbfd2f8a3667313dcfa0f9a11497ae6732b8Bob Wilson BitsToDouble(0x4330000080000000ULL) : 2086ec15bbfd2f8a3667313dcfa0f9a11497ae6732b8Bob Wilson BitsToDouble(0x4330000000000000ULL), 2087825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson MVT::f64); 208822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // subtract the bias 2089825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson SDValue Sub = DAG.getNode(ISD::FSUB, dl, MVT::f64, Load, Bias); 209022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // final result 2091475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Result; 209222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // handle final rounding 2093825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (DestVT == MVT::f64) { 209422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // do nothing 209522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner Result = Sub; 2096825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson } else if (DestVT.bitsLT(MVT::f64)) { 2097af435274e56af687b51f33b5bc6f005fe99ad46fDale Johannesen Result = DAG.getNode(ISD::FP_ROUND, dl, DestVT, Sub, 20980bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(0)); 2099825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson } else if (DestVT.bitsGT(MVT::f64)) { 2100af435274e56af687b51f33b5bc6f005fe99ad46fDale Johannesen Result = DAG.getNode(ISD::FP_EXTEND, dl, DestVT, Sub); 210122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 210222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Result; 210322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 210422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); 2105a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen // Code below here assumes !isSigned without checking again. 21060fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman 21070fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman // Implementation of unsigned i64 to f64 following the algorithm in 21080fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman // __floatundidf in compiler_rt. This implementation has the advantage 21090fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman // of performing rounding correctly, both in the default rounding mode 21100fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman // and in all alternate rounding modes. 21110fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman // TODO: Generalize this for use with other types. 21120fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman if (Op0.getValueType() == MVT::i64 && DestVT == MVT::f64) { 21130fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman SDValue TwoP52 = 21140fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman DAG.getConstant(UINT64_C(0x4330000000000000), MVT::i64); 21150fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman SDValue TwoP84PlusTwoP52 = 21160fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman DAG.getConstantFP(BitsToDouble(UINT64_C(0x4530000000100000)), MVT::f64); 21170fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman SDValue TwoP84 = 21180fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman DAG.getConstant(UINT64_C(0x4530000000000000), MVT::i64); 21190fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman 21200fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman SDValue Lo = DAG.getZeroExtendInReg(Op0, dl, MVT::i32); 21210fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman SDValue Hi = DAG.getNode(ISD::SRL, dl, MVT::i64, Op0, 21220fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman DAG.getConstant(32, MVT::i64)); 21230fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman SDValue LoOr = DAG.getNode(ISD::OR, dl, MVT::i64, Lo, TwoP52); 21240fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman SDValue HiOr = DAG.getNode(ISD::OR, dl, MVT::i64, Hi, TwoP84); 21250fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman SDValue LoFlt = DAG.getNode(ISD::BIT_CONVERT, dl, MVT::f64, LoOr); 21260fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman SDValue HiFlt = DAG.getNode(ISD::BIT_CONVERT, dl, MVT::f64, HiOr); 21276e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach SDValue HiSub = DAG.getNode(ISD::FSUB, dl, MVT::f64, HiFlt, 21286e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach TwoP84PlusTwoP52); 21290fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman return DAG.getNode(ISD::FADD, dl, MVT::f64, LoFlt, HiSub); 21300fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman } 21310fa9d1d9011a98212b66daf27f6a8a3d734ae818Dan Gohman 2132a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen // Implementation of unsigned i64 to f32. This implementation has the 2133a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen // advantage of performing rounding correctly. 2134a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen // TODO: Generalize this for use with other types. 2135a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen if (Op0.getValueType() == MVT::i64 && DestVT == MVT::f32) { 2136a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen EVT SHVT = TLI.getShiftAmountTy(); 2137a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen 21386e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach SDValue And = DAG.getNode(ISD::AND, dl, MVT::i64, Op0, 2139a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen DAG.getConstant(UINT64_C(0xfffffffffffff800), MVT::i64)); 2140a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen SDValue Or = DAG.getNode(ISD::OR, dl, MVT::i64, And, 2141a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen DAG.getConstant(UINT64_C(0x800), MVT::i64)); 21426e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach SDValue And2 = DAG.getNode(ISD::AND, dl, MVT::i64, Op0, 2143a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen DAG.getConstant(UINT64_C(0x7ff), MVT::i64)); 2144a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen SDValue Ne = DAG.getSetCC(dl, TLI.getSetCCResultType(MVT::i64), 2145a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen And2, DAG.getConstant(UINT64_C(0), MVT::i64), ISD::SETNE); 2146a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen SDValue Sel = DAG.getNode(ISD::SELECT, dl, MVT::i64, Ne, Or, Op0); 2147a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen SDValue Ge = DAG.getSetCC(dl, TLI.getSetCCResultType(MVT::i64), 2148a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen Op0, DAG.getConstant(UINT64_C(0x0020000000000000), MVT::i64), 2149a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen ISD::SETUGE); 2150a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen SDValue Sel2 = DAG.getNode(ISD::SELECT, dl, MVT::i64, Ge, Sel, Op0); 2151a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen 2152a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen SDValue Sh = DAG.getNode(ISD::SRL, dl, MVT::i64, Sel2, 2153a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen DAG.getConstant(32, SHVT)); 2154a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen SDValue Trunc = DAG.getNode(ISD::TRUNCATE, dl, MVT::i32, Sh); 2155a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen SDValue Fcvt = DAG.getNode(ISD::UINT_TO_FP, dl, MVT::f64, Trunc); 2156a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen SDValue TwoP32 = 2157a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen DAG.getConstantFP(BitsToDouble(UINT64_C(0x41f0000000000000)), MVT::f64); 2158a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen SDValue Fmul = DAG.getNode(ISD::FMUL, dl, MVT::f64, TwoP32, Fcvt); 2159a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen SDValue Lo = DAG.getNode(ISD::TRUNCATE, dl, MVT::i32, Sel2); 2160a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen SDValue Fcvt2 = DAG.getNode(ISD::UINT_TO_FP, dl, MVT::f64, Lo); 2161a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen SDValue Fadd = DAG.getNode(ISD::FADD, dl, MVT::f64, Fmul, Fcvt2); 2162a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen return DAG.getNode(ISD::FP_ROUND, dl, MVT::f32, Fadd, 2163a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen DAG.getIntPtrConstant(0)); 2164a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen 2165a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen } 2166a5afa1cb214146fd270c86f606b634c8ed6682f2Dale Johannesen 2167b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman SDValue Tmp1 = DAG.getNode(ISD::SINT_TO_FP, dl, DestVT, Op0); 2168b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman 2169b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman SDValue SignSet = DAG.getSetCC(dl, TLI.getSetCCResultType(Op0.getValueType()), 2170b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman Op0, DAG.getConstant(0, Op0.getValueType()), 2171b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman ISD::SETLT); 2172b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman SDValue Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); 2173b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman SDValue CstOffset = DAG.getNode(ISD::SELECT, dl, Zero.getValueType(), 2174b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman SignSet, Four, Zero); 2175b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman 2176b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman // If the sign bit of the integer is set, the large number will be treated 2177b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman // as a negative number. To counteract this, the dynamic code adds an 2178b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman // offset depending on the data type. 2179b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman uint64_t FF; 2180b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman switch (Op0.getValueType().getSimpleVT().SimpleTy) { 218135a389344d21178ee280c2410401b2060b5b879cChris Lattner default: assert(0 && "Unsupported integer type!"); 2182b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) 2183b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) 2184b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) 2185b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) 2186b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman } 2187b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman if (TLI.isLittleEndian()) FF <<= 32; 2188b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman Constant *FudgeFactor = ConstantInt::get( 2189b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman Type::getInt64Ty(*DAG.getContext()), FF); 2190b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman 2191b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman SDValue CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); 2192b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman unsigned Alignment = cast<ConstantPoolSDNode>(CPIdx)->getAlignment(); 2193b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman CPIdx = DAG.getNode(ISD::ADD, dl, TLI.getPointerTy(), CPIdx, CstOffset); 2194b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman Alignment = std::min(Alignment, 4u); 2195b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman SDValue FudgeInReg; 2196b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman if (DestVT == MVT::f32) 2197b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman FudgeInReg = DAG.getLoad(MVT::f32, dl, DAG.getEntryNode(), CPIdx, 219885ca1066328639119f94c47a83b698c48b84ebb0Chris Lattner MachinePointerInfo::getConstantPool(), 2199b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman false, false, Alignment); 2200b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman else { 2201b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman FudgeInReg = 2202bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, DestVT, dl, 2203b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman DAG.getEntryNode(), CPIdx, 220485ca1066328639119f94c47a83b698c48b84ebb0Chris Lattner MachinePointerInfo::getConstantPool(), 2205b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman MVT::f32, false, false, Alignment)); 2206b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman } 220722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 2208b6b343d77acb5c290f7093e741fbce484d11cedcDan Gohman return DAG.getNode(ISD::FADD, dl, DestVT, Tmp1, FudgeInReg); 220922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 221022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 221122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalINT_TO_FP - This function is responsible for legalizing a 221222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// *INT_TO_FP operation of the specified operand when the target requests that 221322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 221422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP 221522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that takes a larger input. 2216475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDValue LegalOp, 2217e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT DestVT, 2218af435274e56af687b51f33b5bc6f005fe99ad46fDale Johannesen bool isSigned, 2219af435274e56af687b51f33b5bc6f005fe99ad46fDale Johannesen DebugLoc dl) { 222022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate *INT_TO_FP operation to use. 2221e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NewInTy = LegalOp.getValueType(); 222222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 222322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 222422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 222522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 222622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 2227825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson NewInTy = (MVT::SimpleValueType)(NewInTy.getSimpleVT().SimpleTy+1); 222883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewInTy.isInteger() && "Ran out of possibilities!"); 222922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 223022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports SINT_TO_FP of this type, use it. 22313be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman if (TLI.isOperationLegalOrCustom(ISD::SINT_TO_FP, NewInTy)) { 22323be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman OpToUse = ISD::SINT_TO_FP; 22333be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman break; 223422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 223522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner if (isSigned) continue; 223622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 223722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If the target supports UINT_TO_FP of this type, use it. 22383be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman if (TLI.isOperationLegalOrCustom(ISD::UINT_TO_FP, NewInTy)) { 22393be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman OpToUse = ISD::UINT_TO_FP; 22403be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman break; 224122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 224222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 224322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 224422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 224522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 224622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Okay, we found the operation and type to use. Zero extend our input to the 224722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // desired type then run the operation on it. 2248af435274e56af687b51f33b5bc6f005fe99ad46fDale Johannesen return DAG.getNode(OpToUse, dl, DestVT, 224922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, 2250af435274e56af687b51f33b5bc6f005fe99ad46fDale Johannesen dl, NewInTy, LegalOp)); 225177e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 225277e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner 225322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// PromoteLegalFP_TO_INT - This function is responsible for legalizing a 225422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// FP_TO_*INT operation of the specified operand when the target requests that 225522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// we promote it. At this point, we know that the result and operand types are 225622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT 225722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// operation that returns a larger result. 2258475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDValue LegalOp, 2259e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT DestVT, 2260af435274e56af687b51f33b5bc6f005fe99ad46fDale Johannesen bool isSigned, 2261af435274e56af687b51f33b5bc6f005fe99ad46fDale Johannesen DebugLoc dl) { 226222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // First step, figure out the appropriate FP_TO*INT operation to use. 2263e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NewOutTy = DestVT; 22649c32d3b798dc6caeebe6cea2effe80ca5e84e66eChris Lattner 226522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner unsigned OpToUse = 0; 2266e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 226722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Scan for the appropriate larger type to use. 226822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner while (1) { 2269825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson NewOutTy = (MVT::SimpleValueType)(NewOutTy.getSimpleVT().SimpleTy+1); 227083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands assert(NewOutTy.isInteger() && "Ran out of possibilities!"); 227166de05b606cf31f1f23ed0c4eb1f097738cd1506Chris Lattner 22723be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman if (TLI.isOperationLegalOrCustom(ISD::FP_TO_SINT, NewOutTy)) { 227322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_SINT; 227422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 227522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 2276e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner 22773be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman if (TLI.isOperationLegalOrCustom(ISD::FP_TO_UINT, NewOutTy)) { 227822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner OpToUse = ISD::FP_TO_UINT; 227922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner break; 2280e9c35e7309a8293852ba71d874fa4dc99e07e6feChris Lattner } 22810d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner 228222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // Otherwise, try a larger type. 2283a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner } 2284a88a260dbd874a3bdd3e47f4f15ab0d7c7803044Chris Lattner 2285fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 228627a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Okay, we found the operation and type to use. 2287af435274e56af687b51f33b5bc6f005fe99ad46fDale Johannesen SDValue Operation = DAG.getNode(OpToUse, dl, NewOutTy, LegalOp); 2288126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 228927a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // Truncate the result of the extended FP_TO_*INT operation to the desired 229027a6c7380fa4dfc8e1837a8dd67967d063b26544Chris Lattner // size. 2291af435274e56af687b51f33b5bc6f005fe99ad46fDale Johannesen return DAG.getNode(ISD::TRUNCATE, dl, DestVT, Operation); 229222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 229313689e2009e71f7982d1313ed699e0e6a50157d0Chris Lattner 229422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. 229522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 22968a782a2a8c2f0c82f292d03a3f707232b0bae27bDale JohannesenSDValue SelectionDAGLegalize::ExpandBSWAP(SDValue Op, DebugLoc dl) { 2297e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Op.getValueType(); 2298e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SHVT = TLI.getShiftAmountTy(); 2299475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; 2300825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson switch (VT.getSimpleVT().SimpleTy) { 230135a389344d21178ee280c2410401b2060b5b879cChris Lattner default: assert(0 && "Unhandled Expand type in BSWAP!"); 2302825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson case MVT::i16: 23038a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp2 = DAG.getNode(ISD::SHL, dl, VT, Op, DAG.getConstant(8, SHVT)); 23048a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp1 = DAG.getNode(ISD::SRL, dl, VT, Op, DAG.getConstant(8, SHVT)); 23058a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen return DAG.getNode(ISD::OR, dl, VT, Tmp1, Tmp2); 2306825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson case MVT::i32: 23078a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp4 = DAG.getNode(ISD::SHL, dl, VT, Op, DAG.getConstant(24, SHVT)); 23088a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp3 = DAG.getNode(ISD::SHL, dl, VT, Op, DAG.getConstant(8, SHVT)); 23098a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp2 = DAG.getNode(ISD::SRL, dl, VT, Op, DAG.getConstant(8, SHVT)); 23108a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp1 = DAG.getNode(ISD::SRL, dl, VT, Op, DAG.getConstant(24, SHVT)); 23118a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp3 = DAG.getNode(ISD::AND, dl, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); 23128a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp2 = DAG.getNode(ISD::AND, dl, VT, Tmp2, DAG.getConstant(0xFF00, VT)); 23138a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp4 = DAG.getNode(ISD::OR, dl, VT, Tmp4, Tmp3); 23148a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp2 = DAG.getNode(ISD::OR, dl, VT, Tmp2, Tmp1); 23158a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen return DAG.getNode(ISD::OR, dl, VT, Tmp4, Tmp2); 2316825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson case MVT::i64: 23178a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp8 = DAG.getNode(ISD::SHL, dl, VT, Op, DAG.getConstant(56, SHVT)); 23188a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp7 = DAG.getNode(ISD::SHL, dl, VT, Op, DAG.getConstant(40, SHVT)); 23198a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp6 = DAG.getNode(ISD::SHL, dl, VT, Op, DAG.getConstant(24, SHVT)); 23208a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp5 = DAG.getNode(ISD::SHL, dl, VT, Op, DAG.getConstant(8, SHVT)); 23218a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp4 = DAG.getNode(ISD::SRL, dl, VT, Op, DAG.getConstant(8, SHVT)); 23228a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp3 = DAG.getNode(ISD::SRL, dl, VT, Op, DAG.getConstant(24, SHVT)); 23238a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp2 = DAG.getNode(ISD::SRL, dl, VT, Op, DAG.getConstant(40, SHVT)); 23248a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp1 = DAG.getNode(ISD::SRL, dl, VT, Op, DAG.getConstant(56, SHVT)); 23258a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp7 = DAG.getNode(ISD::AND, dl, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); 23268a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp6 = DAG.getNode(ISD::AND, dl, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); 23278a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp5 = DAG.getNode(ISD::AND, dl, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); 23288a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp4 = DAG.getNode(ISD::AND, dl, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); 23298a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp3 = DAG.getNode(ISD::AND, dl, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); 23308a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp2 = DAG.getNode(ISD::AND, dl, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); 23318a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp8 = DAG.getNode(ISD::OR, dl, VT, Tmp8, Tmp7); 23328a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp6 = DAG.getNode(ISD::OR, dl, VT, Tmp6, Tmp5); 23338a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp4 = DAG.getNode(ISD::OR, dl, VT, Tmp4, Tmp3); 23348a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp2 = DAG.getNode(ISD::OR, dl, VT, Tmp2, Tmp1); 23358a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp8 = DAG.getNode(ISD::OR, dl, VT, Tmp8, Tmp6); 23368a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp4 = DAG.getNode(ISD::OR, dl, VT, Tmp4, Tmp2); 23378a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen return DAG.getNode(ISD::OR, dl, VT, Tmp8, Tmp4); 23380d67f0c80f0295aa44f826ec1402ea73d6b4bd22Chris Lattner } 233977e77a6aa0ab25a812947aed477220dd11220a18Chris Lattner} 2340edf128a7fa90f2b0b7ee24741a04a7ae1ecd6f7eMisha Brukman 234122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// ExpandBitCount - Expand the specified bitcount instruction into operations. 234222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner/// 2343fdc40a0a696c658d550d894ea03772e5f8af2c94Scott MichelSDValue SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDValue Op, 23448a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen DebugLoc dl) { 234522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner switch (Opc) { 234635a389344d21178ee280c2410401b2060b5b879cChris Lattner default: assert(0 && "Cannot expand this yet!"); 234722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTPOP: { 234822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner static const uint64_t mask[6] = { 234922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x5555555555555555ULL, 0x3333333333333333ULL, 235022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, 235122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL 235222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner }; 2353e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Op.getValueType(); 2354e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShVT = TLI.getShiftAmountTy(); 235583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned len = VT.getSizeInBits(); 235622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 235722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) 2358b0d5cdd52e8448f769cd71aaee6a4b8592dc08b1Duncan Sands unsigned EltSize = VT.isVector() ? 2359b0d5cdd52e8448f769cd71aaee6a4b8592dc08b1Duncan Sands VT.getVectorElementType().getSizeInBits() : len; 2360b0d5cdd52e8448f769cd71aaee6a4b8592dc08b1Duncan Sands SDValue Tmp2 = DAG.getConstant(APInt(EltSize, mask[i]), VT); 2361475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp3 = DAG.getConstant(1ULL << i, ShVT); 2362fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel Op = DAG.getNode(ISD::ADD, dl, VT, 2363e72c5964d5263f2489bf2c7e9d32f71271d205fcDale Johannesen DAG.getNode(ISD::AND, dl, VT, Op, Tmp2), 23648a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen DAG.getNode(ISD::AND, dl, VT, 23658a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen DAG.getNode(ISD::SRL, dl, VT, Op, Tmp3), 23668a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Tmp2)); 236722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 236822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner return Op; 236922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 237022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTLZ: { 237122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we do this: 237222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 1); 237322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >> 2); 237422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // ... 237522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>16); 237622cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // x = x | (x >>32); // for 64-bit input 237722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // return popcount(~x); 237822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // 237922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // but see also: http://www.hackersdelight.org/HDcode/nlz.cc 2380e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Op.getValueType(); 2381e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShVT = TLI.getShiftAmountTy(); 238283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned len = VT.getSizeInBits(); 238322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { 2384475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp3 = DAG.getConstant(1ULL << i, ShVT); 2385fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel Op = DAG.getNode(ISD::OR, dl, VT, Op, 2386e72c5964d5263f2489bf2c7e9d32f71271d205fcDale Johannesen DAG.getNode(ISD::SRL, dl, VT, Op, Tmp3)); 238722cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 23888a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen Op = DAG.getNOT(dl, Op, VT); 23898a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen return DAG.getNode(ISD::CTPOP, dl, VT, Op); 239022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 239122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner case ISD::CTTZ: { 239222cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // for now, we use: { return popcount(~x & (x - 1)); } 239322cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // unless the target has ctlz but not ctpop, in which case we use: 239422cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // { return 32 - nlz(~x & (x-1)); } 239522cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // see also http://www.hackersdelight.org/HDcode/ntz.cc 2396e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Op.getValueType(); 23978a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen SDValue Tmp3 = DAG.getNode(ISD::AND, dl, VT, 23988a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen DAG.getNOT(dl, Op, VT), 23998a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen DAG.getNode(ISD::SUB, dl, VT, Op, 24007581bfa2757a3149c6d17c0fe592e5c3808aa843Bill Wendling DAG.getConstant(1, VT))); 240122cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. 2402f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman if (!TLI.isOperationLegalOrCustom(ISD::CTPOP, VT) && 2403f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(ISD::CTLZ, VT)) 24048a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen return DAG.getNode(ISD::SUB, dl, VT, 240583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(VT.getSizeInBits(), VT), 24068a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen DAG.getNode(ISD::CTLZ, dl, VT, Tmp3)); 24078a782a2a8c2f0c82f292d03a3f707232b0bae27bDale Johannesen return DAG.getNode(ISD::CTPOP, dl, VT, Tmp3); 240822cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 240922cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner } 241022cde6a518782cafc2115ad8d8233f79c9e9d52eChris Lattner} 2411e34b396ab7d28469bf3d9679a748b643d8e30458Chris Lattner 2412e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbachstd::pair <SDValue, SDValue> SelectionDAGLegalize::ExpandAtomic(SDNode *Node) { 2413e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach unsigned Opc = Node->getOpcode(); 2414e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach MVT VT = cast<AtomicSDNode>(Node)->getMemoryVT().getSimpleVT(); 2415e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach RTLIB::Libcall LC; 2416e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach 2417e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach switch (Opc) { 2418e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach default: 2419e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach llvm_unreachable("Unhandled atomic intrinsic Expand!"); 2420e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach break; 2421ef6eb9c7ab7967790566c5e2d47977d89fc060eeJim Grosbach case ISD::ATOMIC_SWAP: 2422ef6eb9c7ab7967790566c5e2d47977d89fc060eeJim Grosbach switch (VT.SimpleTy) { 2423ef6eb9c7ab7967790566c5e2d47977d89fc060eeJim Grosbach default: llvm_unreachable("Unexpected value type for atomic!"); 2424ef6eb9c7ab7967790566c5e2d47977d89fc060eeJim Grosbach case MVT::i8: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_1; break; 2425ef6eb9c7ab7967790566c5e2d47977d89fc060eeJim Grosbach case MVT::i16: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_2; break; 2426ef6eb9c7ab7967790566c5e2d47977d89fc060eeJim Grosbach case MVT::i32: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_4; break; 2427ef6eb9c7ab7967790566c5e2d47977d89fc060eeJim Grosbach case MVT::i64: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_8; break; 2428ef6eb9c7ab7967790566c5e2d47977d89fc060eeJim Grosbach } 2429ef6eb9c7ab7967790566c5e2d47977d89fc060eeJim Grosbach break; 2430e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case ISD::ATOMIC_CMP_SWAP: 2431e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach switch (VT.SimpleTy) { 2432e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach default: llvm_unreachable("Unexpected value type for atomic!"); 2433e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i8: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_1; break; 2434e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i16: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_2; break; 2435e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i32: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_4; break; 2436e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i64: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_8; break; 2437e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach } 2438e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach break; 2439e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case ISD::ATOMIC_LOAD_ADD: 2440e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach switch (VT.SimpleTy) { 2441e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach default: llvm_unreachable("Unexpected value type for atomic!"); 2442e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_ADD_1; break; 2443e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_ADD_2; break; 2444e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_ADD_4; break; 2445e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_ADD_8; break; 2446e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach } 2447e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach break; 2448e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case ISD::ATOMIC_LOAD_SUB: 2449e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach switch (VT.SimpleTy) { 2450e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach default: llvm_unreachable("Unexpected value type for atomic!"); 2451e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_SUB_1; break; 2452e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_SUB_2; break; 2453e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_SUB_4; break; 2454e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_SUB_8; break; 2455e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach } 2456e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach break; 2457e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case ISD::ATOMIC_LOAD_AND: 2458e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach switch (VT.SimpleTy) { 2459e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach default: llvm_unreachable("Unexpected value type for atomic!"); 2460e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_AND_1; break; 2461e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_AND_2; break; 2462e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_AND_4; break; 2463e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_AND_8; break; 2464e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach } 2465e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach break; 2466e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case ISD::ATOMIC_LOAD_OR: 2467e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach switch (VT.SimpleTy) { 2468e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach default: llvm_unreachable("Unexpected value type for atomic!"); 2469e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_OR_1; break; 2470e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_OR_2; break; 2471e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_OR_4; break; 2472e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_OR_8; break; 2473e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach } 2474e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach break; 2475e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case ISD::ATOMIC_LOAD_XOR: 2476e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach switch (VT.SimpleTy) { 2477e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach default: llvm_unreachable("Unexpected value type for atomic!"); 2478e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_XOR_1; break; 2479e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_XOR_2; break; 2480e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_XOR_4; break; 2481e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_XOR_8; break; 2482e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach } 2483e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach break; 2484e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case ISD::ATOMIC_LOAD_NAND: 2485e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach switch (VT.SimpleTy) { 2486e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach default: llvm_unreachable("Unexpected value type for atomic!"); 2487e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_NAND_1; break; 2488e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_NAND_2; break; 2489e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_NAND_4; break; 2490e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_NAND_8; break; 2491e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach } 2492e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach break; 2493e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach } 2494e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach 2495e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach return ExpandChainLibCall(LC, Node, false); 2496e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach} 2497e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach 24988c377c7296d8a8104231442c3f6c27296249ec5fEli Friedmanvoid SelectionDAGLegalize::ExpandNode(SDNode *Node, 24998c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman SmallVectorImpl<SDValue> &Results) { 25008c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman DebugLoc dl = Node->getDebugLoc(); 2501bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman SDValue Tmp1, Tmp2, Tmp3, Tmp4; 25028c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman switch (Node->getOpcode()) { 25038c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::CTPOP: 25048c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::CTLZ: 25058c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::CTTZ: 25068c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = ExpandBitCount(Node->getOpcode(), Node->getOperand(0), dl); 25078c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Results.push_back(Tmp1); 25088c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 25098c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::BSWAP: 2510775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandBSWAP(Node->getOperand(0), dl)); 25118c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 25128c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::FRAMEADDR: 25138c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::RETURNADDR: 25148c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::FRAME_TO_ARGS_OFFSET: 25158c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Results.push_back(DAG.getConstant(0, Node->getValueType(0))); 25168c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 25178c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::FLT_ROUNDS_: 25188c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Results.push_back(DAG.getConstant(1, Node->getValueType(0))); 25198c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 25208c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::EH_RETURN: 25218c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::EH_LABEL: 25228c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::PREFETCH: 25238c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::VAEND: 2524c66e150b2cb1f2f8e2f4eb124b9177ffc6ef3a74Jim Grosbach case ISD::EH_SJLJ_LONGJMP: 2525c66e150b2cb1f2f8e2f4eb124b9177ffc6ef3a74Jim Grosbach Results.push_back(Node->getOperand(0)); 2526c66e150b2cb1f2f8e2f4eb124b9177ffc6ef3a74Jim Grosbach break; 2527c66e150b2cb1f2f8e2f4eb124b9177ffc6ef3a74Jim Grosbach case ISD::EH_SJLJ_SETJMP: 2528c66e150b2cb1f2f8e2f4eb124b9177ffc6ef3a74Jim Grosbach Results.push_back(DAG.getConstant(0, MVT::i32)); 25298c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Results.push_back(Node->getOperand(0)); 25308c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 2531bbfc0d22a9a8e197a5ea428f14d37366a1fadd5fJim Grosbach case ISD::MEMBARRIER: { 2532bbfc0d22a9a8e197a5ea428f14d37366a1fadd5fJim Grosbach // If the target didn't lower this, lower it to '__sync_synchronize()' call 2533bbfc0d22a9a8e197a5ea428f14d37366a1fadd5fJim Grosbach TargetLowering::ArgListTy Args; 2534bbfc0d22a9a8e197a5ea428f14d37366a1fadd5fJim Grosbach std::pair<SDValue, SDValue> CallResult = 2535bbfc0d22a9a8e197a5ea428f14d37366a1fadd5fJim Grosbach TLI.LowerCallTo(Node->getOperand(0), Type::getVoidTy(*DAG.getContext()), 2536bbfc0d22a9a8e197a5ea428f14d37366a1fadd5fJim Grosbach false, false, false, false, 0, CallingConv::C, false, 2537bbfc0d22a9a8e197a5ea428f14d37366a1fadd5fJim Grosbach /*isReturnValueUsed=*/true, 2538bbfc0d22a9a8e197a5ea428f14d37366a1fadd5fJim Grosbach DAG.getExternalSymbol("__sync_synchronize", 2539bbfc0d22a9a8e197a5ea428f14d37366a1fadd5fJim Grosbach TLI.getPointerTy()), 2540bbfc0d22a9a8e197a5ea428f14d37366a1fadd5fJim Grosbach Args, DAG, dl); 2541bbfc0d22a9a8e197a5ea428f14d37366a1fadd5fJim Grosbach Results.push_back(CallResult.second); 2542bbfc0d22a9a8e197a5ea428f14d37366a1fadd5fJim Grosbach break; 2543bbfc0d22a9a8e197a5ea428f14d37366a1fadd5fJim Grosbach } 2544b56ce8171ec52f44015d95127faaa7dd4ed92763Jim Grosbach // By default, atomic intrinsics are marked Legal and lowered. Targets 2545b56ce8171ec52f44015d95127faaa7dd4ed92763Jim Grosbach // which don't support them directly, however, may want libcalls, in which 2546b56ce8171ec52f44015d95127faaa7dd4ed92763Jim Grosbach // case they mark them Expand, and we get here. 2547b56ce8171ec52f44015d95127faaa7dd4ed92763Jim Grosbach // FIXME: Unimplemented for now. Add libcalls. 2548b56ce8171ec52f44015d95127faaa7dd4ed92763Jim Grosbach case ISD::ATOMIC_SWAP: 2549b56ce8171ec52f44015d95127faaa7dd4ed92763Jim Grosbach case ISD::ATOMIC_LOAD_ADD: 2550b56ce8171ec52f44015d95127faaa7dd4ed92763Jim Grosbach case ISD::ATOMIC_LOAD_SUB: 2551b56ce8171ec52f44015d95127faaa7dd4ed92763Jim Grosbach case ISD::ATOMIC_LOAD_AND: 2552b56ce8171ec52f44015d95127faaa7dd4ed92763Jim Grosbach case ISD::ATOMIC_LOAD_OR: 2553b56ce8171ec52f44015d95127faaa7dd4ed92763Jim Grosbach case ISD::ATOMIC_LOAD_XOR: 2554b56ce8171ec52f44015d95127faaa7dd4ed92763Jim Grosbach case ISD::ATOMIC_LOAD_NAND: 2555b56ce8171ec52f44015d95127faaa7dd4ed92763Jim Grosbach case ISD::ATOMIC_LOAD_MIN: 2556b56ce8171ec52f44015d95127faaa7dd4ed92763Jim Grosbach case ISD::ATOMIC_LOAD_MAX: 2557b56ce8171ec52f44015d95127faaa7dd4ed92763Jim Grosbach case ISD::ATOMIC_LOAD_UMIN: 2558b56ce8171ec52f44015d95127faaa7dd4ed92763Jim Grosbach case ISD::ATOMIC_LOAD_UMAX: 2559a845706dc1cebfe75913832e07ef114519a879d6Evan Cheng case ISD::ATOMIC_CMP_SWAP: { 2560e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach std::pair<SDValue, SDValue> Tmp = ExpandAtomic(Node); 2561e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach Results.push_back(Tmp.first); 2562e03262fcfc09356a0e3ec589041bc2e0248944e9Jim Grosbach Results.push_back(Tmp.second); 256359c38f31acf87901208bbf790508196b1c0ad1fdJim Grosbach break; 2564a845706dc1cebfe75913832e07ef114519a879d6Evan Cheng } 25654bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman case ISD::DYNAMIC_STACKALLOC: 25664bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman ExpandDYNAMIC_STACKALLOC(Node, Results); 25674bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman break; 25688c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::MERGE_VALUES: 25698c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman for (unsigned i = 0; i < Node->getNumValues(); i++) 25708c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Results.push_back(Node->getOperand(i)); 25718c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 25728c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::UNDEF: { 2573e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Node->getValueType(0); 25748c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman if (VT.isInteger()) 25758c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Results.push_back(DAG.getConstant(0, VT)); 257635a389344d21178ee280c2410401b2060b5b879cChris Lattner else { 257735a389344d21178ee280c2410401b2060b5b879cChris Lattner assert(VT.isFloatingPoint() && "Unknown value type!"); 25788c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Results.push_back(DAG.getConstantFP(0, VT)); 257935a389344d21178ee280c2410401b2060b5b879cChris Lattner } 25808c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 25818c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 25828c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::TRAP: { 25838c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // If this operation is not supported, lower it to 'abort()' call 25848c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman TargetLowering::ArgListTy Args; 25858c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman std::pair<SDValue, SDValue> CallResult = 25861d0be15f89cb5056e20e2d24faa8d6afb1573bcaOwen Anderson TLI.LowerCallTo(Node->getOperand(0), Type::getVoidTy(*DAG.getContext()), 25876b61cd185eeb90bec93f042535594132ae1f0f41Tilmann Scheller false, false, false, false, 0, CallingConv::C, false, 258898ca4f2a325f72374a477f9deba7d09e8999c29bDan Gohman /*isReturnValueUsed=*/true, 25898c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman DAG.getExternalSymbol("abort", TLI.getPointerTy()), 259046ada19645c981a0b7932487d163f7582074a4d9Bill Wendling Args, DAG, dl); 25918c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Results.push_back(CallResult.second); 25928c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 25938c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 25948c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::FP_ROUND: 25958c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::BIT_CONVERT: 25968c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), 25978c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Node->getValueType(0), dl); 25988c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Results.push_back(Tmp1); 25998c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 26008c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::FP_EXTEND: 26018c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = EmitStackConvert(Node->getOperand(0), 26028c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Node->getOperand(0).getValueType(), 26038c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Node->getValueType(0), dl); 26048c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Results.push_back(Tmp1); 26058c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 26068c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::SIGN_EXTEND_INREG: { 26078c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // NOTE: we could fall back on load/store here too for targets without 26088c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // SAR. However, it is doubtful that any exist. 2609e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 261087862e77bbf90cf1b68c9eea1f3641ad81435e38Dan Gohman EVT VT = Node->getValueType(0); 261187862e77bbf90cf1b68c9eea1f3641ad81435e38Dan Gohman EVT ShiftAmountTy = TLI.getShiftAmountTy(); 2612d1996360399ad6dbe75ee185b661b16c83146373Dan Gohman if (VT.isVector()) 261387862e77bbf90cf1b68c9eea1f3641ad81435e38Dan Gohman ShiftAmountTy = VT; 2614d1996360399ad6dbe75ee185b661b16c83146373Dan Gohman unsigned BitsDiff = VT.getScalarType().getSizeInBits() - 2615d1996360399ad6dbe75ee185b661b16c83146373Dan Gohman ExtraVT.getScalarType().getSizeInBits(); 261687862e77bbf90cf1b68c9eea1f3641ad81435e38Dan Gohman SDValue ShiftCst = DAG.getConstant(BitsDiff, ShiftAmountTy); 26178c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = DAG.getNode(ISD::SHL, dl, Node->getValueType(0), 26188c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Node->getOperand(0), ShiftCst); 2619775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Tmp1 = DAG.getNode(ISD::SRA, dl, Node->getValueType(0), Tmp1, ShiftCst); 2620775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(Tmp1); 26218c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 26228c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 26238c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::FP_ROUND_INREG: { 26248c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // The only way we can lower this is to turn it into a TRUNCSTORE, 26258c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // EXTLOAD pair, targetting a temporary location (a stack slot). 26268c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman 26278c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // NOTE: there is a choice here between constantly creating new stack 26288c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // slots and always reusing the same one. We currently always create 26298c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // new ones, as reuse may inhibit scheduling. 2630e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); 26318c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = EmitStackConvert(Node->getOperand(0), ExtraVT, 26328c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Node->getValueType(0), dl); 26338c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Results.push_back(Tmp1); 26348c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 26358c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 26368c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::SINT_TO_FP: 26378c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::UINT_TO_FP: 26388c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = ExpandLegalINT_TO_FP(Node->getOpcode() == ISD::SINT_TO_FP, 26398c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Node->getOperand(0), Node->getValueType(0), dl); 26408c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Results.push_back(Tmp1); 26418c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 26428c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::FP_TO_UINT: { 26438c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman SDValue True, False; 2644e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Node->getOperand(0).getValueType(); 2645e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Node->getValueType(0); 26468c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman const uint64_t zero[] = {0, 0}; 26478c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman APFloat apf = APFloat(APInt(VT.getSizeInBits(), 2, zero)); 26488c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman APInt x = APInt::getSignBit(NVT.getSizeInBits()); 26498c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman (void)apf.convertFromAPInt(x, false, APFloat::rmNearestTiesToEven); 26508c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = DAG.getConstantFP(apf, VT); 26518c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp2 = DAG.getSetCC(dl, TLI.getSetCCResultType(VT), 26528c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Node->getOperand(0), 26538c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1, ISD::SETLT); 26548c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman True = DAG.getNode(ISD::FP_TO_SINT, dl, NVT, Node->getOperand(0)); 2655775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling False = DAG.getNode(ISD::FP_TO_SINT, dl, NVT, 2656775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling DAG.getNode(ISD::FSUB, dl, VT, 2657775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Node->getOperand(0), Tmp1)); 26588c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman False = DAG.getNode(ISD::XOR, dl, NVT, False, 26598c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman DAG.getConstant(x, NVT)); 26608c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = DAG.getNode(ISD::SELECT, dl, NVT, Tmp2, True, False); 26618c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Results.push_back(Tmp1); 26628c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 26638c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 2664509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman case ISD::VAARG: { 2665509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); 2666e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Node->getValueType(0); 2667509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Tmp1 = Node->getOperand(0); 2668509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Tmp2 = Node->getOperand(1); 266972d13ff755fe8484c89468252f945ba23fe98f71Rafael Espindola unsigned Align = Node->getConstantOperandVal(3); 267072d13ff755fe8484c89468252f945ba23fe98f71Rafael Espindola 2671ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner SDValue VAListLoad = DAG.getLoad(TLI.getPointerTy(), dl, Tmp1, Tmp2, 2672ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MachinePointerInfo(V), false, false, 0); 267372d13ff755fe8484c89468252f945ba23fe98f71Rafael Espindola SDValue VAList = VAListLoad; 267472d13ff755fe8484c89468252f945ba23fe98f71Rafael Espindola 2675cbeeae23c31d32b833c9c7c3e8984e4cbcf22f45Rafael Espindola if (Align > TLI.getMinStackArgumentAlignment()) { 2676cbeeae23c31d32b833c9c7c3e8984e4cbcf22f45Rafael Espindola assert(((Align & (Align-1)) == 0) && "Expected Align to be a power of 2"); 2677cbeeae23c31d32b833c9c7c3e8984e4cbcf22f45Rafael Espindola 267872d13ff755fe8484c89468252f945ba23fe98f71Rafael Espindola VAList = DAG.getNode(ISD::ADD, dl, TLI.getPointerTy(), VAList, 267972d13ff755fe8484c89468252f945ba23fe98f71Rafael Espindola DAG.getConstant(Align - 1, 268072d13ff755fe8484c89468252f945ba23fe98f71Rafael Espindola TLI.getPointerTy())); 268172d13ff755fe8484c89468252f945ba23fe98f71Rafael Espindola 268272d13ff755fe8484c89468252f945ba23fe98f71Rafael Espindola VAList = DAG.getNode(ISD::AND, dl, TLI.getPointerTy(), VAList, 268372d13ff755fe8484c89468252f945ba23fe98f71Rafael Espindola DAG.getConstant(-Align, 268472d13ff755fe8484c89468252f945ba23fe98f71Rafael Espindola TLI.getPointerTy())); 268572d13ff755fe8484c89468252f945ba23fe98f71Rafael Espindola } 268672d13ff755fe8484c89468252f945ba23fe98f71Rafael Espindola 2687509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman // Increment the pointer, VAList, to the next vaarg 2688509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Tmp3 = DAG.getNode(ISD::ADD, dl, TLI.getPointerTy(), VAList, 2689509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman DAG.getConstant(TLI.getTargetData()-> 2690adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng getTypeAllocSize(VT.getTypeForEVT(*DAG.getContext())), 2691509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman TLI.getPointerTy())); 2692509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman // Store the incremented VAList to the legalized pointer 269372d13ff755fe8484c89468252f945ba23fe98f71Rafael Espindola Tmp3 = DAG.getStore(VAListLoad.getValue(1), dl, Tmp3, Tmp2, V, 0, 26941e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, 0); 2695509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman // Load the actual argument out of the pointer VAList 2696ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Results.push_back(DAG.getLoad(VT, dl, Tmp3, VAList, MachinePointerInfo(), 26971e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, 0)); 2698509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Results.push_back(Results[0].getValue(1)); 2699509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman break; 2700509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman } 27018c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::VACOPY: { 27028c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // This defaults to loading a pointer from the input and storing it to the 27038c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // output, returning the chain. 27048c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman const Value *VD = cast<SrcValueSDNode>(Node->getOperand(3))->getValue(); 27058c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman const Value *VS = cast<SrcValueSDNode>(Node->getOperand(4))->getValue(); 27068c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = DAG.getLoad(TLI.getPointerTy(), dl, Node->getOperand(0), 2707ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Node->getOperand(2), MachinePointerInfo(VS), 2708ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner false, false, 0); 2709ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Tmp1 = DAG.getStore(Tmp1.getValue(1), dl, Tmp1, Node->getOperand(1), 2710ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MachinePointerInfo(VD), false, false, 0); 2711775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(Tmp1); 27128c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 27138c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 27148c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::EXTRACT_VECTOR_ELT: 27158c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman if (Node->getOperand(0).getValueType().getVectorNumElements() == 1) 27168c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // This must be an access of the only element. Return it. 27176e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach Tmp1 = DAG.getNode(ISD::BIT_CONVERT, dl, Node->getValueType(0), 27188c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Node->getOperand(0)); 27198c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman else 27208c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = ExpandExtractFromVectorThroughStack(SDValue(Node, 0)); 27218c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Results.push_back(Tmp1); 27228c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 27238c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::EXTRACT_SUBVECTOR: 2724775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandExtractFromVectorThroughStack(SDValue(Node, 0))); 27258c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 2726509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman case ISD::CONCAT_VECTORS: { 2727775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandVectorBuildThroughStack(Node)); 2728509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman break; 2729509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman } 27308c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::SCALAR_TO_VECTOR: 2731775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandSCALAR_TO_VECTOR(Node)); 27328c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 27333f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman case ISD::INSERT_VECTOR_ELT: 2734775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandINSERT_VECTOR_ELT(Node->getOperand(0), 2735775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Node->getOperand(1), 2736775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Node->getOperand(2), dl)); 27373f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman break; 2738509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman case ISD::VECTOR_SHUFFLE: { 2739509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman SmallVector<int, 8> Mask; 2740509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman cast<ShuffleVectorSDNode>(Node)->getMask(Mask); 2741509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman 2742e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Node->getValueType(0); 2743e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EltVT = VT.getVectorElementType(); 274414b2141497a913a2d5b508a0174ba09cac61e0bfBob Wilson if (getTypeAction(EltVT) == Promote) 274514b2141497a913a2d5b508a0174ba09cac61e0bfBob Wilson EltVT = TLI.getTypeToTransformTo(*DAG.getContext(), EltVT); 2746509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman unsigned NumElems = VT.getVectorNumElements(); 2747509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman SmallVector<SDValue, 8> Ops; 2748509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman for (unsigned i = 0; i != NumElems; ++i) { 2749509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman if (Mask[i] < 0) { 2750509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Ops.push_back(DAG.getUNDEF(EltVT)); 2751509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman continue; 2752509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman } 2753509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman unsigned Idx = Mask[i]; 2754509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman if (Idx < NumElems) 2755775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, EltVT, 2756775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Node->getOperand(0), 2757775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling DAG.getIntPtrConstant(Idx))); 2758509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman else 2759775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, EltVT, 2760775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Node->getOperand(1), 2761775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling DAG.getIntPtrConstant(Idx - NumElems))); 2762509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman } 2763509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Tmp1 = DAG.getNode(ISD::BUILD_VECTOR, dl, VT, &Ops[0], Ops.size()); 2764509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Results.push_back(Tmp1); 2765509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman break; 2766509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman } 27678c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::EXTRACT_ELEMENT: { 2768e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OpTy = Node->getOperand(0).getValueType(); 27698c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman if (cast<ConstantSDNode>(Node->getOperand(1))->getZExtValue()) { 27708c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // 1 -> Hi 27718c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = DAG.getNode(ISD::SRL, dl, OpTy, Node->getOperand(0), 27728c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman DAG.getConstant(OpTy.getSizeInBits()/2, 27738c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman TLI.getShiftAmountTy())); 27748c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = DAG.getNode(ISD::TRUNCATE, dl, Node->getValueType(0), Tmp1); 27758c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } else { 27768c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // 0 -> Lo 27778c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = DAG.getNode(ISD::TRUNCATE, dl, Node->getValueType(0), 27788c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Node->getOperand(0)); 27798c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 27808c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Results.push_back(Tmp1); 27818c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 27828c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 27833f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman case ISD::STACKSAVE: 27843f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman // Expand to CopyFromReg if the target set 27853f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman // StackPointerRegisterToSaveRestore. 27863f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 2787775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(DAG.getCopyFromReg(Node->getOperand(0), dl, SP, 2788775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Node->getValueType(0))); 27893f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman Results.push_back(Results[0].getValue(1)); 27903f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman } else { 2791775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(DAG.getUNDEF(Node->getValueType(0))); 27923f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman Results.push_back(Node->getOperand(0)); 27933f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman } 27943f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman break; 27953f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman case ISD::STACKRESTORE: 2796775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling // Expand to CopyToReg if the target set 2797775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling // StackPointerRegisterToSaveRestore. 2798775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { 2799775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(DAG.getCopyToReg(Node->getOperand(0), dl, SP, 2800775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Node->getOperand(1))); 2801775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling } else { 2802775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(Node->getOperand(0)); 2803775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling } 28043f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman break; 28054bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman case ISD::FCOPYSIGN: 2806775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFCOPYSIGN(Node)); 28074bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman break; 2808f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FNEG: 2809f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman // Expand Y = FNEG(X) -> Y = SUB -0.0, X 2810f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman Tmp1 = DAG.getConstantFP(-0.0, Node->getValueType(0)); 2811f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman Tmp1 = DAG.getNode(ISD::FSUB, dl, Node->getValueType(0), Tmp1, 2812f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman Node->getOperand(0)); 2813f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman Results.push_back(Tmp1); 2814f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2815f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FABS: { 2816f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). 2817e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Node->getValueType(0); 2818f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman Tmp1 = Node->getOperand(0); 2819f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman Tmp2 = DAG.getConstantFP(0.0, VT); 2820775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Tmp2 = DAG.getSetCC(dl, TLI.getSetCCResultType(Tmp1.getValueType()), 2821f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman Tmp1, Tmp2, ISD::SETUGT); 2822775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Tmp3 = DAG.getNode(ISD::FNEG, dl, VT, Tmp1); 2823775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Tmp1 = DAG.getNode(ISD::SELECT, dl, VT, Tmp2, Tmp1, Tmp3); 2824f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman Results.push_back(Tmp1); 2825f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2826f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman } 2827f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FSQRT: 2828775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFPLibCall(Node, RTLIB::SQRT_F32, RTLIB::SQRT_F64, 2829775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128)); 2830f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2831f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FSIN: 2832775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFPLibCall(Node, RTLIB::SIN_F32, RTLIB::SIN_F64, 2833775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::SIN_F80, RTLIB::SIN_PPCF128)); 2834f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2835f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FCOS: 2836775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFPLibCall(Node, RTLIB::COS_F32, RTLIB::COS_F64, 2837775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::COS_F80, RTLIB::COS_PPCF128)); 2838f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2839f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FLOG: 2840775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFPLibCall(Node, RTLIB::LOG_F32, RTLIB::LOG_F64, 2841775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::LOG_F80, RTLIB::LOG_PPCF128)); 2842f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2843f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FLOG2: 2844775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFPLibCall(Node, RTLIB::LOG2_F32, RTLIB::LOG2_F64, 2845775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::LOG2_F80, RTLIB::LOG2_PPCF128)); 2846f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2847f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FLOG10: 2848775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFPLibCall(Node, RTLIB::LOG10_F32, RTLIB::LOG10_F64, 2849775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::LOG10_F80, RTLIB::LOG10_PPCF128)); 2850f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2851f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FEXP: 2852775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFPLibCall(Node, RTLIB::EXP_F32, RTLIB::EXP_F64, 2853775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::EXP_F80, RTLIB::EXP_PPCF128)); 2854f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2855f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FEXP2: 2856775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFPLibCall(Node, RTLIB::EXP2_F32, RTLIB::EXP2_F64, 2857775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::EXP2_F80, RTLIB::EXP2_PPCF128)); 2858f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2859f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FTRUNC: 2860775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFPLibCall(Node, RTLIB::TRUNC_F32, RTLIB::TRUNC_F64, 2861775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::TRUNC_F80, RTLIB::TRUNC_PPCF128)); 2862f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2863f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FFLOOR: 2864775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFPLibCall(Node, RTLIB::FLOOR_F32, RTLIB::FLOOR_F64, 2865775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::FLOOR_F80, RTLIB::FLOOR_PPCF128)); 2866f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2867f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FCEIL: 2868775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFPLibCall(Node, RTLIB::CEIL_F32, RTLIB::CEIL_F64, 2869775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::CEIL_F80, RTLIB::CEIL_PPCF128)); 2870f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2871f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FRINT: 2872775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFPLibCall(Node, RTLIB::RINT_F32, RTLIB::RINT_F64, 2873775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::RINT_F80, RTLIB::RINT_PPCF128)); 2874f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2875f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FNEARBYINT: 2876775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFPLibCall(Node, RTLIB::NEARBYINT_F32, 2877775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::NEARBYINT_F64, 2878775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::NEARBYINT_F80, 2879775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::NEARBYINT_PPCF128)); 2880f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2881f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FPOWI: 2882775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFPLibCall(Node, RTLIB::POWI_F32, RTLIB::POWI_F64, 2883775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::POWI_F80, RTLIB::POWI_PPCF128)); 2884f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2885f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FPOW: 2886775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFPLibCall(Node, RTLIB::POW_F32, RTLIB::POW_F64, 2887775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::POW_F80, RTLIB::POW_PPCF128)); 2888f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2889f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FDIV: 2890775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFPLibCall(Node, RTLIB::DIV_F32, RTLIB::DIV_F64, 2891775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::DIV_F80, RTLIB::DIV_PPCF128)); 2892f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2893f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::FREM: 2894775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandFPLibCall(Node, RTLIB::REM_F32, RTLIB::REM_F64, 2895775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling RTLIB::REM_F80, RTLIB::REM_PPCF128)); 2896f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 2897927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov case ISD::FP16_TO_FP32: 2898927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov Results.push_back(ExpandLibCall(RTLIB::FPEXT_F16_F32, Node, false)); 2899927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov break; 2900927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov case ISD::FP32_TO_FP16: 2901927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov Results.push_back(ExpandLibCall(RTLIB::FPROUND_F32_F16, Node, false)); 2902927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov break; 2903f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman case ISD::ConstantFP: { 2904f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); 2905775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling // Check to see if this FP immediate is already legal. 2906775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling // If this is a legal constant, turn it into a TargetConstantFP node. 2907a1eaa3c52b75d4fe2bcd4f7c52e56c405ee91d3cEvan Cheng if (TLI.isFPImmLegal(CFP->getValueAPF(), Node->getValueType(0))) 2908775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(SDValue(Node, 0)); 2909f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman else 2910775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(ExpandConstantFP(CFP, true, DAG, TLI)); 2911f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman break; 2912f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman } 291326ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman case ISD::EHSELECTION: { 291426ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman unsigned Reg = TLI.getExceptionSelectorRegister(); 291526ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman assert(Reg && "Can't expand to unknown register!"); 2916775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(DAG.getCopyFromReg(Node->getOperand(1), dl, Reg, 2917775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Node->getValueType(0))); 291826ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman Results.push_back(Results[0].getValue(1)); 291926ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman break; 292026ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman } 292126ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman case ISD::EXCEPTIONADDR: { 292226ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman unsigned Reg = TLI.getExceptionAddressRegister(); 292326ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman assert(Reg && "Can't expand to unknown register!"); 2924775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(DAG.getCopyFromReg(Node->getOperand(0), dl, Reg, 2925775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Node->getValueType(0))); 292626ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman Results.push_back(Results[0].getValue(1)); 292726ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman break; 292826ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman } 292926ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman case ISD::SUB: { 2930e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Node->getValueType(0); 293126ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman assert(TLI.isOperationLegalOrCustom(ISD::ADD, VT) && 293226ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman TLI.isOperationLegalOrCustom(ISD::XOR, VT) && 293326ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman "Don't know how to expand this subtraction!"); 293426ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman Tmp1 = DAG.getNode(ISD::XOR, dl, VT, Node->getOperand(1), 293526ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman DAG.getConstant(APInt::getAllOnesValue(VT.getSizeInBits()), VT)); 2936775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Tmp1 = DAG.getNode(ISD::ADD, dl, VT, Tmp2, DAG.getConstant(1, VT)); 2937775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(DAG.getNode(ISD::ADD, dl, VT, Node->getOperand(0), Tmp1)); 293826ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman break; 293926ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman } 2940f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman case ISD::UREM: 2941f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman case ISD::SREM: { 2942e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Node->getValueType(0); 294326ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman SDVTList VTs = DAG.getVTList(VT, VT); 2944f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman bool isSigned = Node->getOpcode() == ISD::SREM; 2945f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman unsigned DivOpc = isSigned ? ISD::SDIV : ISD::UDIV; 2946f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman unsigned DivRemOpc = isSigned ? ISD::SDIVREM : ISD::UDIVREM; 2947f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman Tmp2 = Node->getOperand(0); 2948f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman Tmp3 = Node->getOperand(1); 29493be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman if (TLI.isOperationLegalOrCustom(DivRemOpc, VT)) { 29503be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman Tmp1 = DAG.getNode(DivRemOpc, dl, VTs, Tmp2, Tmp3).getValue(1); 29513be2e514c9e7b20135be5b9df3e9aa1cb08cb374Eli Friedman } else if (TLI.isOperationLegalOrCustom(DivOpc, VT)) { 2952f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman // X % Y -> X-X/Y*Y 2953f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman Tmp1 = DAG.getNode(DivOpc, dl, VT, Tmp2, Tmp3); 2954f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman Tmp1 = DAG.getNode(ISD::MUL, dl, VT, Tmp1, Tmp3); 2955f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman Tmp1 = DAG.getNode(ISD::SUB, dl, VT, Tmp2, Tmp1); 2956f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman } else if (isSigned) { 29578983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov Tmp1 = ExpandIntLibCall(Node, true, 29588983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov RTLIB::SREM_I8, 29598983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov RTLIB::SREM_I16, RTLIB::SREM_I32, 2960f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman RTLIB::SREM_I64, RTLIB::SREM_I128); 2961f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman } else { 29628983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov Tmp1 = ExpandIntLibCall(Node, false, 29638983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov RTLIB::UREM_I8, 29648983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov RTLIB::UREM_I16, RTLIB::UREM_I32, 296526ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman RTLIB::UREM_I64, RTLIB::UREM_I128); 2966f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman } 296726ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman Results.push_back(Tmp1); 296826ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman break; 296926ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman } 2970f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman case ISD::UDIV: 2971f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman case ISD::SDIV: { 2972f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman bool isSigned = Node->getOpcode() == ISD::SDIV; 2973f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman unsigned DivRemOpc = isSigned ? ISD::SDIVREM : ISD::UDIVREM; 2974e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Node->getValueType(0); 297526ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman SDVTList VTs = DAG.getVTList(VT, VT); 2976f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman if (TLI.isOperationLegalOrCustom(DivRemOpc, VT)) 2977f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman Tmp1 = DAG.getNode(DivRemOpc, dl, VTs, Node->getOperand(0), 2978f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman Node->getOperand(1)); 2979f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman else if (isSigned) 29808983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov Tmp1 = ExpandIntLibCall(Node, true, 29818983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov RTLIB::SDIV_I8, 29828983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov RTLIB::SDIV_I16, RTLIB::SDIV_I32, 298326ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman RTLIB::SDIV_I64, RTLIB::SDIV_I128); 2984f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman else 29858983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov Tmp1 = ExpandIntLibCall(Node, false, 29868983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov RTLIB::UDIV_I8, 29878983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov RTLIB::UDIV_I16, RTLIB::UDIV_I32, 2988f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman RTLIB::UDIV_I64, RTLIB::UDIV_I128); 298926ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman Results.push_back(Tmp1); 299026ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman break; 299126ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman } 299226ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman case ISD::MULHU: 299326ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman case ISD::MULHS: { 299426ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman unsigned ExpandOpcode = Node->getOpcode() == ISD::MULHU ? ISD::UMUL_LOHI : 299526ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman ISD::SMUL_LOHI; 2996e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Node->getValueType(0); 299726ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman SDVTList VTs = DAG.getVTList(VT, VT); 299826ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman assert(TLI.isOperationLegalOrCustom(ExpandOpcode, VT) && 299926ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman "If this wasn't legal, it shouldn't have been created!"); 300026ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman Tmp1 = DAG.getNode(ExpandOpcode, dl, VTs, Node->getOperand(0), 300126ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman Node->getOperand(1)); 300226ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman Results.push_back(Tmp1.getValue(1)); 300326ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman break; 300426ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman } 300526ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman case ISD::MUL: { 3006e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Node->getValueType(0); 300726ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman SDVTList VTs = DAG.getVTList(VT, VT); 300826ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman // See if multiply or divide can be lowered using two-result operations. 300926ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman // We just need the low half of the multiply; try both the signed 301026ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman // and unsigned forms. If the target supports both SMUL_LOHI and 301126ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman // UMUL_LOHI, form a preference by checking which forms of plain 301226ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman // MULH it supports. 301326ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman bool HasSMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::SMUL_LOHI, VT); 301426ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman bool HasUMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::UMUL_LOHI, VT); 301526ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman bool HasMULHS = TLI.isOperationLegalOrCustom(ISD::MULHS, VT); 301626ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman bool HasMULHU = TLI.isOperationLegalOrCustom(ISD::MULHU, VT); 301726ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman unsigned OpToUse = 0; 301826ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman if (HasSMUL_LOHI && !HasMULHS) { 301926ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman OpToUse = ISD::SMUL_LOHI; 302026ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman } else if (HasUMUL_LOHI && !HasMULHU) { 302126ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman OpToUse = ISD::UMUL_LOHI; 302226ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman } else if (HasSMUL_LOHI) { 302326ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman OpToUse = ISD::SMUL_LOHI; 302426ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman } else if (HasUMUL_LOHI) { 302526ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman OpToUse = ISD::UMUL_LOHI; 302626ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman } 302726ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman if (OpToUse) { 3028775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(DAG.getNode(OpToUse, dl, VTs, Node->getOperand(0), 3029775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Node->getOperand(1))); 303026ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman break; 303126ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman } 30328983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov Tmp1 = ExpandIntLibCall(Node, false, 30338983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov RTLIB::MUL_I8, 30348983da729aa1ca99a11a3b98ae6280dfcdbadb39Anton Korobeynikov RTLIB::MUL_I16, RTLIB::MUL_I32, 303526ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman RTLIB::MUL_I64, RTLIB::MUL_I128); 303626ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman Results.push_back(Tmp1); 303726ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman break; 303826ea8f982fb58245d3735b80ce04bc8050348a19Eli Friedman } 30394bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman case ISD::SADDO: 30404bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman case ISD::SSUBO: { 30414bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue LHS = Node->getOperand(0); 30424bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue RHS = Node->getOperand(1); 30434bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue Sum = DAG.getNode(Node->getOpcode() == ISD::SADDO ? 30444bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman ISD::ADD : ISD::SUB, dl, LHS.getValueType(), 30454bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman LHS, RHS); 30464bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman Results.push_back(Sum); 3047122d06de7482dcb39e7dbcbfe302e39cc55627e5Bill Wendling EVT OType = Node->getValueType(1); 3048775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling 30494bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue Zero = DAG.getConstant(0, LHS.getValueType()); 30504bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman 30514bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // LHSSign -> LHS >= 0 30524bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // RHSSign -> RHS >= 0 30534bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // SumSign -> Sum >= 0 30544bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // 30554bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // Add: 30564bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // Overflow -> (LHSSign == RHSSign) && (LHSSign != SumSign) 30574bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // Sub: 30584bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // Overflow -> (LHSSign != RHSSign) && (LHSSign != SumSign) 30594bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // 30604bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue LHSSign = DAG.getSetCC(dl, OType, LHS, Zero, ISD::SETGE); 30614bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue RHSSign = DAG.getSetCC(dl, OType, RHS, Zero, ISD::SETGE); 30624bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue SignsMatch = DAG.getSetCC(dl, OType, LHSSign, RHSSign, 30634bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman Node->getOpcode() == ISD::SADDO ? 30644bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman ISD::SETEQ : ISD::SETNE); 30654bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman 30664bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue SumSign = DAG.getSetCC(dl, OType, Sum, Zero, ISD::SETGE); 30674bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue SumSignNE = DAG.getSetCC(dl, OType, LHSSign, SumSign, ISD::SETNE); 30684bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman 30694bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue Cmp = DAG.getNode(ISD::AND, dl, OType, SignsMatch, SumSignNE); 30704bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman Results.push_back(Cmp); 30714bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman break; 30724bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman } 30734bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman case ISD::UADDO: 30744bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman case ISD::USUBO: { 30754bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue LHS = Node->getOperand(0); 30764bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue RHS = Node->getOperand(1); 30774bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue Sum = DAG.getNode(Node->getOpcode() == ISD::UADDO ? 30784bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman ISD::ADD : ISD::SUB, dl, LHS.getValueType(), 30794bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman LHS, RHS); 30804bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman Results.push_back(Sum); 3081775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(DAG.getSetCC(dl, Node->getValueType(1), Sum, LHS, 3082775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Node->getOpcode () == ISD::UADDO ? 3083775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling ISD::SETULT : ISD::SETUGT)); 30844bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman break; 30854bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman } 3086db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman case ISD::UMULO: 3087db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman case ISD::SMULO: { 3088e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Node->getValueType(0); 3089db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman SDValue LHS = Node->getOperand(0); 3090db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman SDValue RHS = Node->getOperand(1); 3091db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman SDValue BottomHalf; 3092db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman SDValue TopHalf; 3093ec9d8b00470b2ddabef4e1b58b4f60d69995d8ceNuno Lopes static const unsigned Ops[2][3] = 3094db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman { { ISD::MULHU, ISD::UMUL_LOHI, ISD::ZERO_EXTEND }, 3095db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman { ISD::MULHS, ISD::SMUL_LOHI, ISD::SIGN_EXTEND }}; 3096db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman bool isSigned = Node->getOpcode() == ISD::SMULO; 3097db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman if (TLI.isOperationLegalOrCustom(Ops[isSigned][0], VT)) { 3098db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman BottomHalf = DAG.getNode(ISD::MUL, dl, VT, LHS, RHS); 3099db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman TopHalf = DAG.getNode(Ops[isSigned][0], dl, VT, LHS, RHS); 3100db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman } else if (TLI.isOperationLegalOrCustom(Ops[isSigned][1], VT)) { 3101db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman BottomHalf = DAG.getNode(Ops[isSigned][1], dl, DAG.getVTList(VT, VT), LHS, 3102db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman RHS); 3103db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman TopHalf = BottomHalf.getValue(1); 310435a389344d21178ee280c2410401b2060b5b879cChris Lattner } else { 310535a389344d21178ee280c2410401b2060b5b879cChris Lattner // FIXME: We should be able to fall back to a libcall with an illegal 310635a389344d21178ee280c2410401b2060b5b879cChris Lattner // type in some cases. 310735a389344d21178ee280c2410401b2060b5b879cChris Lattner // Also, we can fall back to a division in some cases, but that's a big 310835a389344d21178ee280c2410401b2060b5b879cChris Lattner // performance hit in the general case. 310935a389344d21178ee280c2410401b2060b5b879cChris Lattner assert(TLI.isTypeLegal(EVT::getIntegerVT(*DAG.getContext(), 311035a389344d21178ee280c2410401b2060b5b879cChris Lattner VT.getSizeInBits() * 2)) && 311135a389344d21178ee280c2410401b2060b5b879cChris Lattner "Don't know how to expand this operation yet!"); 311223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT WideVT = EVT::getIntegerVT(*DAG.getContext(), VT.getSizeInBits() * 2); 3113db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman LHS = DAG.getNode(Ops[isSigned][2], dl, WideVT, LHS); 3114db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman RHS = DAG.getNode(Ops[isSigned][2], dl, WideVT, RHS); 3115db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman Tmp1 = DAG.getNode(ISD::MUL, dl, WideVT, LHS, RHS); 3116db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman BottomHalf = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, VT, Tmp1, 3117db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman DAG.getIntPtrConstant(0)); 3118db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman TopHalf = DAG.getNode(ISD::EXTRACT_ELEMENT, dl, VT, Tmp1, 3119db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman DAG.getIntPtrConstant(1)); 3120db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman } 3121db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman if (isSigned) { 3122db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman Tmp1 = DAG.getConstant(VT.getSizeInBits() - 1, TLI.getShiftAmountTy()); 3123db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman Tmp1 = DAG.getNode(ISD::SRA, dl, VT, BottomHalf, Tmp1); 3124db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman TopHalf = DAG.getSetCC(dl, TLI.getSetCCResultType(VT), TopHalf, Tmp1, 3125db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman ISD::SETNE); 3126db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman } else { 3127db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman TopHalf = DAG.getSetCC(dl, TLI.getSetCCResultType(VT), TopHalf, 3128db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman DAG.getConstant(0, VT), ISD::SETNE); 3129db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman } 3130db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman Results.push_back(BottomHalf); 3131db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman Results.push_back(TopHalf); 3132db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman break; 3133db3c169f3a3102d40352ba63fd14a75c819c7adcEli Friedman } 3134f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman case ISD::BUILD_PAIR: { 3135e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT PairTy = Node->getValueType(0); 3136f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, dl, PairTy, Node->getOperand(0)); 3137f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman Tmp2 = DAG.getNode(ISD::ANY_EXTEND, dl, PairTy, Node->getOperand(1)); 3138775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Tmp2 = DAG.getNode(ISD::SHL, dl, PairTy, Tmp2, 3139f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman DAG.getConstant(PairTy.getSizeInBits()/2, 3140f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman TLI.getShiftAmountTy())); 3141775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(DAG.getNode(ISD::OR, dl, PairTy, Tmp1, Tmp2)); 3142f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman break; 3143f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman } 3144509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman case ISD::SELECT: 3145509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Tmp1 = Node->getOperand(0); 3146509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Tmp2 = Node->getOperand(1); 3147509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Tmp3 = Node->getOperand(2); 3148775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling if (Tmp1.getOpcode() == ISD::SETCC) { 3149509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Tmp1 = DAG.getSelectCC(dl, Tmp1.getOperand(0), Tmp1.getOperand(1), 3150509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Tmp2, Tmp3, 3151509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); 3152775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling } else { 3153509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Tmp1 = DAG.getSelectCC(dl, Tmp1, 3154509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman DAG.getConstant(0, Tmp1.getValueType()), 3155509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Tmp2, Tmp3, ISD::SETNE); 3156775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling } 3157509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Results.push_back(Tmp1); 3158509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman break; 31594bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman case ISD::BR_JT: { 31604bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue Chain = Node->getOperand(0); 31614bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue Table = Node->getOperand(1); 31624bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue Index = Node->getOperand(2); 31634bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman 3164e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT PTy = TLI.getPointerTy(); 3165071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner 3166071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner const TargetData &TD = *TLI.getTargetData(); 3167071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner unsigned EntrySize = 3168071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner DAG.getMachineFunction().getJumpTableInfo()->getEntrySize(TD); 31696e9926108a69efbc11f1cadf947e98500e4d4228Jim Grosbach 3170071c62fad0b25ad4131e7f984173a796c1e63f61Chris Lattner Index = DAG.getNode(ISD::MUL, dl, PTy, 31714bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman Index, DAG.getConstant(EntrySize, PTy)); 31724bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman SDValue Addr = DAG.getNode(ISD::ADD, dl, PTy, Index, Table); 31734bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman 317423b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT MemVT = EVT::getIntegerVT(*DAG.getContext(), EntrySize * 8); 3175bcc8017c738e92d9c1af221b11c4916cb524184eEvan Cheng SDValue LD = DAG.getExtLoad(ISD::SEXTLOAD, PTy, dl, Chain, Addr, 317685ca1066328639119f94c47a83b698c48b84ebb0Chris Lattner MachinePointerInfo::getJumpTable(), MemVT, 31771e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, 0); 31784bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman Addr = LD; 317955e59c186303ff02c0be7429da3b1b36c347f164Dan Gohman if (TM.getRelocationModel() == Reloc::PIC_) { 31804bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // For PIC, the sequence is: 3181775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling // BRIND(load(Jumptable + index) + RelocBase) 31824bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman // RelocBase can be JumpTable, GOT or some sort of global base. 31834bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman Addr = DAG.getNode(ISD::ADD, dl, PTy, Addr, 31844bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman TLI.getPICJumpTableRelocBase(Table, DAG)); 31854bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman } 3186825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Tmp1 = DAG.getNode(ISD::BRIND, dl, MVT::Other, LD.getValue(1), Addr); 31874bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman Results.push_back(Tmp1); 31884bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman break; 31894bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman } 3190f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman case ISD::BRCOND: 3191f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman // Expand brcond's setcc into its constituent parts and create a BR_CC 3192f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman // Node. 3193f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman Tmp1 = Node->getOperand(0); 3194f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman Tmp2 = Node->getOperand(1); 3195775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling if (Tmp2.getOpcode() == ISD::SETCC) { 3196825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Tmp1 = DAG.getNode(ISD::BR_CC, dl, MVT::Other, 3197f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman Tmp1, Tmp2.getOperand(2), 3198f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman Tmp2.getOperand(0), Tmp2.getOperand(1), 3199f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman Node->getOperand(2)); 3200775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling } else { 3201825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Tmp1 = DAG.getNode(ISD::BR_CC, dl, MVT::Other, Tmp1, 3202f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman DAG.getCondCode(ISD::SETNE), Tmp2, 3203f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman DAG.getConstant(0, Tmp2.getValueType()), 3204f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman Node->getOperand(2)); 3205775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling } 3206f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman Results.push_back(Tmp1); 3207f6f20a7779c5308ccb3e4306552d749091a77a60Eli Friedman break; 3208ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman case ISD::SETCC: { 3209ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman Tmp1 = Node->getOperand(0); 3210ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman Tmp2 = Node->getOperand(1); 3211ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman Tmp3 = Node->getOperand(2); 3212775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling LegalizeSetCCCondCode(Node->getValueType(0), Tmp1, Tmp2, Tmp3, dl); 3213ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman 3214ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman // If we expanded the SETCC into an AND/OR, return the new node 3215ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman if (Tmp2.getNode() == 0) { 3216ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman Results.push_back(Tmp1); 3217ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman break; 3218ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman } 3219ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman 3220ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman // Otherwise, SETCC for the given comparison type must be completely 3221ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman // illegal; expand it into a SELECT_CC. 3222e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = Node->getValueType(0); 3223ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman Tmp1 = DAG.getNode(ISD::SELECT_CC, dl, VT, Tmp1, Tmp2, 3224ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman DAG.getConstant(1, VT), DAG.getConstant(0, VT), Tmp3); 3225ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman Results.push_back(Tmp1); 3226ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman break; 3227ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman } 3228bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman case ISD::SELECT_CC: { 3229bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman Tmp1 = Node->getOperand(0); // LHS 3230bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman Tmp2 = Node->getOperand(1); // RHS 3231bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman Tmp3 = Node->getOperand(2); // True 3232bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman Tmp4 = Node->getOperand(3); // False 3233bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman SDValue CC = Node->getOperand(4); 3234bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman 3235bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman LegalizeSetCCCondCode(TLI.getSetCCResultType(Tmp1.getValueType()), 3236775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Tmp1, Tmp2, CC, dl); 3237bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman 3238bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman assert(!Tmp2.getNode() && "Can't legalize SELECT_CC with legal condition!"); 3239bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); 3240bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman CC = DAG.getCondCode(ISD::SETNE); 3241bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman Tmp1 = DAG.getNode(ISD::SELECT_CC, dl, Node->getValueType(0), Tmp1, Tmp2, 3242bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman Tmp3, Tmp4, CC); 3243bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman Results.push_back(Tmp1); 3244bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman break; 3245bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman } 3246bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman case ISD::BR_CC: { 3247bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman Tmp1 = Node->getOperand(0); // Chain 3248bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman Tmp2 = Node->getOperand(2); // LHS 3249bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman Tmp3 = Node->getOperand(3); // RHS 3250bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman Tmp4 = Node->getOperand(1); // CC 3251bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman 3252bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman LegalizeSetCCCondCode(TLI.getSetCCResultType(Tmp2.getValueType()), 3253775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Tmp2, Tmp3, Tmp4, dl); 3254bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman LastCALLSEQ_END = DAG.getEntryNode(); 3255bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman 3256bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman assert(!Tmp3.getNode() && "Can't legalize BR_CC with legal condition!"); 3257bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); 3258bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman Tmp4 = DAG.getCondCode(ISD::SETNE); 3259bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman Tmp1 = DAG.getNode(ISD::BR_CC, dl, Node->getValueType(0), Tmp1, Tmp4, Tmp2, 3260bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman Tmp3, Node->getOperand(4)); 3261bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman Results.push_back(Tmp1); 3262bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman break; 3263bbdd903c52897df78750aa0caf2fc34d55b5ead0Eli Friedman } 32643f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman case ISD::GLOBAL_OFFSET_TABLE: 32653f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman case ISD::GlobalAddress: 32663f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman case ISD::GlobalTLSAddress: 32673f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman case ISD::ExternalSymbol: 32683f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman case ISD::ConstantPool: 32693f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman case ISD::JumpTable: 32703f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman case ISD::INTRINSIC_W_CHAIN: 32713f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman case ISD::INTRINSIC_WO_CHAIN: 32723f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman case ISD::INTRINSIC_VOID: 32733f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman // FIXME: Custom lowering for these operations shouldn't return null! 32743f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) 32753f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman Results.push_back(SDValue(Node, i)); 32763f727d6c1b68e90a3ab2d95ec2229f8b2c40b84bEli Friedman break; 32778c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 32788c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman} 32798c377c7296d8a8104231442c3f6c27296249ec5fEli Friedmanvoid SelectionDAGLegalize::PromoteNode(SDNode *Node, 32808c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman SmallVectorImpl<SDValue> &Results) { 3281e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = Node->getValueType(0); 32828c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman if (Node->getOpcode() == ISD::UINT_TO_FP || 3283a64eb92fe305424ebde2e3de2b12160b8bf76047Eli Friedman Node->getOpcode() == ISD::SINT_TO_FP || 3284775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Node->getOpcode() == ISD::SETCC) { 32858c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman OVT = Node->getOperand(0).getValueType(); 3286775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling } 3287e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); 32888c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman DebugLoc dl = Node->getDebugLoc(); 3289509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman SDValue Tmp1, Tmp2, Tmp3; 32908c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman switch (Node->getOpcode()) { 32918c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::CTTZ: 32928c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::CTLZ: 32938c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::CTPOP: 32948c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // Zero extend the argument. 32958c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Node->getOperand(0)); 32968c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // Perform the larger operation. 32979a4ba45f4cd0496c422f81e104adf6c03ebdd3baJakob Stoklund Olesen Tmp1 = DAG.getNode(Node->getOpcode(), dl, NVT, Tmp1); 32988c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman if (Node->getOpcode() == ISD::CTTZ) { 32998c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) 33009a4ba45f4cd0496c422f81e104adf6c03ebdd3baJakob Stoklund Olesen Tmp2 = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), 33018c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1, DAG.getConstant(NVT.getSizeInBits(), NVT), 33028c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman ISD::SETEQ); 33038c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = DAG.getNode(ISD::SELECT, dl, NVT, Tmp2, 33048c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman DAG.getConstant(OVT.getSizeInBits(), NVT), Tmp1); 33058c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } else if (Node->getOpcode() == ISD::CTLZ) { 33068c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) 33078c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = DAG.getNode(ISD::SUB, dl, NVT, Tmp1, 33088c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman DAG.getConstant(NVT.getSizeInBits() - 33098c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman OVT.getSizeInBits(), NVT)); 33108c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 3311775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(DAG.getNode(ISD::TRUNCATE, dl, OVT, Tmp1)); 33128c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 33138c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::BSWAP: { 33148c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman unsigned DiffBits = NVT.getSizeInBits() - OVT.getSizeInBits(); 3315167bea71a4bd19329a218f5e1bd8facfd90a0cf9Bill Wendling Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Node->getOperand(0)); 3316775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Tmp1 = DAG.getNode(ISD::BSWAP, dl, NVT, Tmp1); 3317775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Tmp1 = DAG.getNode(ISD::SRL, dl, NVT, Tmp1, 3318775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); 3319775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(Tmp1); 33208c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 33218c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 33228c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::FP_TO_UINT: 33238c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::FP_TO_SINT: 33248c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = PromoteLegalFP_TO_INT(Node->getOperand(0), Node->getValueType(0), 33258c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Node->getOpcode() == ISD::FP_TO_SINT, dl); 33268c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Results.push_back(Tmp1); 33278c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 33288c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::UINT_TO_FP: 33298c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman case ISD::SINT_TO_FP: 33308c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Tmp1 = PromoteLegalINT_TO_FP(Node->getOperand(0), Node->getValueType(0), 33318c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Node->getOpcode() == ISD::SINT_TO_FP, dl); 33328c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman Results.push_back(Tmp1); 33338c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman break; 3334f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::AND: 3335f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman case ISD::OR: 3336c8ca3ae27b64fa785f944799a9bc133fac8f90d9Jakob Stoklund Olesen case ISD::XOR: { 3337c8ca3ae27b64fa785f944799a9bc133fac8f90d9Jakob Stoklund Olesen unsigned ExtOp, TruncOp; 3338c8ca3ae27b64fa785f944799a9bc133fac8f90d9Jakob Stoklund Olesen if (OVT.isVector()) { 3339c8ca3ae27b64fa785f944799a9bc133fac8f90d9Jakob Stoklund Olesen ExtOp = ISD::BIT_CONVERT; 3340c8ca3ae27b64fa785f944799a9bc133fac8f90d9Jakob Stoklund Olesen TruncOp = ISD::BIT_CONVERT; 334135a389344d21178ee280c2410401b2060b5b879cChris Lattner } else { 334235a389344d21178ee280c2410401b2060b5b879cChris Lattner assert(OVT.isInteger() && "Cannot promote logic operation"); 3343c8ca3ae27b64fa785f944799a9bc133fac8f90d9Jakob Stoklund Olesen ExtOp = ISD::ANY_EXTEND; 3344c8ca3ae27b64fa785f944799a9bc133fac8f90d9Jakob Stoklund Olesen TruncOp = ISD::TRUNCATE; 3345c8ca3ae27b64fa785f944799a9bc133fac8f90d9Jakob Stoklund Olesen } 3346c8ca3ae27b64fa785f944799a9bc133fac8f90d9Jakob Stoklund Olesen // Promote each of the values to the new type. 3347c8ca3ae27b64fa785f944799a9bc133fac8f90d9Jakob Stoklund Olesen Tmp1 = DAG.getNode(ExtOp, dl, NVT, Node->getOperand(0)); 3348c8ca3ae27b64fa785f944799a9bc133fac8f90d9Jakob Stoklund Olesen Tmp2 = DAG.getNode(ExtOp, dl, NVT, Node->getOperand(1)); 3349c8ca3ae27b64fa785f944799a9bc133fac8f90d9Jakob Stoklund Olesen // Perform the larger operation, then convert back 3350775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Tmp1 = DAG.getNode(Node->getOpcode(), dl, NVT, Tmp1, Tmp2); 3351775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(DAG.getNode(TruncOp, dl, OVT, Tmp1)); 3352f6b23bfc79cf9f605a2e74942c90799ff4f1a17eEli Friedman break; 3353c8ca3ae27b64fa785f944799a9bc133fac8f90d9Jakob Stoklund Olesen } 3354c8ca3ae27b64fa785f944799a9bc133fac8f90d9Jakob Stoklund Olesen case ISD::SELECT: { 3355509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman unsigned ExtOp, TruncOp; 33564bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman if (Node->getValueType(0).isVector()) { 3357509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman ExtOp = ISD::BIT_CONVERT; 3358509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman TruncOp = ISD::BIT_CONVERT; 33594bc8c718218159fe410462f6e3670e7cb76c0c04Eli Friedman } else if (Node->getValueType(0).isInteger()) { 3360509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman ExtOp = ISD::ANY_EXTEND; 3361509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman TruncOp = ISD::TRUNCATE; 3362509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman } else { 3363509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman ExtOp = ISD::FP_EXTEND; 3364509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman TruncOp = ISD::FP_ROUND; 3365509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman } 3366509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Tmp1 = Node->getOperand(0); 3367509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman // Promote each of the values to the new type. 3368509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Tmp2 = DAG.getNode(ExtOp, dl, NVT, Node->getOperand(1)); 3369509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Tmp3 = DAG.getNode(ExtOp, dl, NVT, Node->getOperand(2)); 3370509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman // Perform the larger operation, then round down. 3371509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Tmp1 = DAG.getNode(ISD::SELECT, dl, NVT, Tmp1, Tmp2, Tmp3); 3372509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman if (TruncOp != ISD::FP_ROUND) 3373775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Tmp1 = DAG.getNode(TruncOp, dl, Node->getValueType(0), Tmp1); 3374509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman else 3375775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Tmp1 = DAG.getNode(TruncOp, dl, Node->getValueType(0), Tmp1, 3376509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman DAG.getIntPtrConstant(0)); 3377775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Results.push_back(Tmp1); 3378509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman break; 3379c8ca3ae27b64fa785f944799a9bc133fac8f90d9Jakob Stoklund Olesen } 3380509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman case ISD::VECTOR_SHUFFLE: { 3381509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman SmallVector<int, 8> Mask; 3382509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman cast<ShuffleVectorSDNode>(Node)->getMask(Mask); 3383509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman 3384509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman // Cast the two input vectors. 3385509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Tmp1 = DAG.getNode(ISD::BIT_CONVERT, dl, NVT, Node->getOperand(0)); 3386509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Tmp2 = DAG.getNode(ISD::BIT_CONVERT, dl, NVT, Node->getOperand(1)); 3387509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman 3388509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman // Convert the shuffle mask to the right # elements. 3389775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Tmp1 = ShuffleWithNarrowerEltType(NVT, OVT, dl, Tmp1, Tmp2, Mask); 3390775db97a50fb56fece6fbd68e1a6f86418e8063aBill Wendling Tmp1 = DAG.getNode(ISD::BIT_CONVERT, dl, OVT, Tmp1); 3391509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman Results.push_back(Tmp1); 3392509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman break; 3393509150f973ae650a57b79010a3ec36e60e40f41dEli Friedman } 3394ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman case ISD::SETCC: { 339578d12644b905dc54cf6cf984af02a49d30d29744Jakob Stoklund Olesen unsigned ExtOp = ISD::FP_EXTEND; 339678d12644b905dc54cf6cf984af02a49d30d29744Jakob Stoklund Olesen if (NVT.isInteger()) { 339778d12644b905dc54cf6cf984af02a49d30d29744Jakob Stoklund Olesen ISD::CondCode CCCode = 339878d12644b905dc54cf6cf984af02a49d30d29744Jakob Stoklund Olesen cast<CondCodeSDNode>(Node->getOperand(2))->get(); 339978d12644b905dc54cf6cf984af02a49d30d29744Jakob Stoklund Olesen ExtOp = isSignedIntSetCC(CCCode) ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND; 3400ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman } 340178d12644b905dc54cf6cf984af02a49d30d29744Jakob Stoklund Olesen Tmp1 = DAG.getNode(ExtOp, dl, NVT, Node->getOperand(0)); 340278d12644b905dc54cf6cf984af02a49d30d29744Jakob Stoklund Olesen Tmp2 = DAG.getNode(ExtOp, dl, NVT, Node->getOperand(1)); 3403ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman Results.push_back(DAG.getNode(ISD::SETCC, dl, Node->getValueType(0), 3404ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman Tmp1, Tmp2, Node->getOperand(2))); 3405ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman break; 3406ad75460e30aab135057355fa0712141bf2cb08fcEli Friedman } 34078c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman } 34088c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman} 34098c377c7296d8a8104231442c3f6c27296249ec5fEli Friedman 34103e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// SelectionDAG::Legalize - This is the entry point for the file. 34113e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner// 3412714efc63d4319b771d89a95aa7a42d400f03d8c9Dan Gohmanvoid SelectionDAG::Legalize(CodeGenOpt::Level OptLevel) { 34133e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// run - This is the main entry point to this class. 34143e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner /// 34151fde9c5f771922f12fefc903850c4eca303297d9Eli Friedman SelectionDAGLegalize(*this, OptLevel).LegalizeDAG(); 34163e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner} 34173e928bbd6153eb08641cbd0ad7d8487378a8b12aChris Lattner 3418