AMDGPUTargetMachine.cpp revision f2cfef8172fd2eceb036b8caff50623a189ba2ff
1//===-- AMDGPUTargetMachine.cpp - TargetMachine for hw codegen targets-----===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10/// \file 11/// \brief The AMDGPU target machine contains all of the hardware specific 12/// information needed to emit code for R600 and SI GPUs. 13// 14//===----------------------------------------------------------------------===// 15 16#include "AMDGPUTargetMachine.h" 17#include "AMDGPU.h" 18#include "R600ISelLowering.h" 19#include "R600InstrInfo.h" 20#include "R600MachineScheduler.h" 21#include "SIISelLowering.h" 22#include "SIInstrInfo.h" 23#include "llvm/Analysis/Passes.h" 24#include "llvm/Analysis/Verifier.h" 25#include "llvm/CodeGen/MachineFunctionAnalysis.h" 26#include "llvm/CodeGen/MachineModuleInfo.h" 27#include "llvm/CodeGen/Passes.h" 28#include "llvm/MC/MCAsmInfo.h" 29#include "llvm/PassManager.h" 30#include "llvm/Support/TargetRegistry.h" 31#include "llvm/Support/raw_os_ostream.h" 32#include "llvm/Transforms/IPO.h" 33#include "llvm/Transforms/Scalar.h" 34#include <llvm/CodeGen/Passes.h> 35 36using namespace llvm; 37 38extern "C" void LLVMInitializeR600Target() { 39 // Register the target 40 RegisterTargetMachine<AMDGPUTargetMachine> X(TheAMDGPUTarget); 41} 42 43static ScheduleDAGInstrs *createR600MachineScheduler(MachineSchedContext *C) { 44 return new ScheduleDAGMI(C, new R600SchedStrategy()); 45} 46 47static MachineSchedRegistry 48SchedCustomRegistry("r600", "Run R600's custom scheduler", 49 createR600MachineScheduler); 50 51AMDGPUTargetMachine::AMDGPUTargetMachine(const Target &T, StringRef TT, 52 StringRef CPU, StringRef FS, 53 TargetOptions Options, 54 Reloc::Model RM, CodeModel::Model CM, 55 CodeGenOpt::Level OptLevel 56) 57: 58 LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OptLevel), 59 Subtarget(TT, CPU, FS), 60 Layout(Subtarget.getDataLayout()), 61 FrameLowering(TargetFrameLowering::StackGrowsUp, 16 // Stack Alignment 62 , 0), 63 IntrinsicInfo(this), 64 InstrItins(&Subtarget.getInstrItineraryData()) { 65 // TLInfo uses InstrInfo so it must be initialized after. 66 if (Subtarget.getGeneration() <= AMDGPUSubtarget::NORTHERN_ISLANDS) { 67 InstrInfo.reset(new R600InstrInfo(*this)); 68 TLInfo.reset(new R600TargetLowering(*this)); 69 } else { 70 InstrInfo.reset(new SIInstrInfo(*this)); 71 TLInfo.reset(new SITargetLowering(*this)); 72 } 73 initAsmInfo(); 74} 75 76AMDGPUTargetMachine::~AMDGPUTargetMachine() { 77} 78 79namespace { 80class AMDGPUPassConfig : public TargetPassConfig { 81public: 82 AMDGPUPassConfig(AMDGPUTargetMachine *TM, PassManagerBase &PM) 83 : TargetPassConfig(TM, PM) { 84 const AMDGPUSubtarget &ST = TM->getSubtarget<AMDGPUSubtarget>(); 85 if (ST.getGeneration() <= AMDGPUSubtarget::NORTHERN_ISLANDS) { 86 enablePass(&MachineSchedulerID); 87 MachineSchedRegistry::setDefault(createR600MachineScheduler); 88 } 89 } 90 91 AMDGPUTargetMachine &getAMDGPUTargetMachine() const { 92 return getTM<AMDGPUTargetMachine>(); 93 } 94 95 virtual bool addPreISel(); 96 virtual bool addInstSelector(); 97 virtual bool addPreRegAlloc(); 98 virtual bool addPostRegAlloc(); 99 virtual bool addPreSched2(); 100 virtual bool addPreEmitPass(); 101}; 102} // End of anonymous namespace 103 104TargetPassConfig *AMDGPUTargetMachine::createPassConfig(PassManagerBase &PM) { 105 return new AMDGPUPassConfig(this, PM); 106} 107 108bool 109AMDGPUPassConfig::addPreISel() { 110 const AMDGPUSubtarget &ST = TM->getSubtarget<AMDGPUSubtarget>(); 111 if (ST.getGeneration() > AMDGPUSubtarget::NORTHERN_ISLANDS) { 112 addPass(createStructurizeCFGPass()); 113 addPass(createSIAnnotateControlFlowPass()); 114 } else { 115 addPass(createR600TextureIntrinsicsReplacer()); 116 } 117 return false; 118} 119 120bool AMDGPUPassConfig::addInstSelector() { 121 addPass(createAMDGPUISelDag(getAMDGPUTargetMachine())); 122 123 const AMDGPUSubtarget &ST = TM->getSubtarget<AMDGPUSubtarget>(); 124 if (ST.getGeneration() <= AMDGPUSubtarget::NORTHERN_ISLANDS) { 125 // This callbacks this pass uses are not implemented yet on SI. 126 addPass(createAMDGPUIndirectAddressingPass(*TM)); 127 } 128 return false; 129} 130 131bool AMDGPUPassConfig::addPreRegAlloc() { 132 addPass(createAMDGPUConvertToISAPass(*TM)); 133 const AMDGPUSubtarget &ST = TM->getSubtarget<AMDGPUSubtarget>(); 134 135 if (ST.getGeneration() <= AMDGPUSubtarget::NORTHERN_ISLANDS) { 136 addPass(createR600VectorRegMerger(*TM)); 137 } 138 return false; 139} 140 141bool AMDGPUPassConfig::addPostRegAlloc() { 142 const AMDGPUSubtarget &ST = TM->getSubtarget<AMDGPUSubtarget>(); 143 144 if (ST.getGeneration() > AMDGPUSubtarget::NORTHERN_ISLANDS) { 145 addPass(createSIInsertWaits(*TM)); 146 } 147 return false; 148} 149 150bool AMDGPUPassConfig::addPreSched2() { 151 const AMDGPUSubtarget &ST = TM->getSubtarget<AMDGPUSubtarget>(); 152 153 if (ST.getGeneration() <= AMDGPUSubtarget::NORTHERN_ISLANDS) { 154 addPass(createR600EmitClauseMarkers(*TM)); 155 } 156 addPass(&IfConverterID); 157 return false; 158} 159 160bool AMDGPUPassConfig::addPreEmitPass() { 161 const AMDGPUSubtarget &ST = TM->getSubtarget<AMDGPUSubtarget>(); 162 if (ST.getGeneration() <= AMDGPUSubtarget::NORTHERN_ISLANDS) { 163 addPass(createAMDGPUCFGPreparationPass(*TM)); 164 addPass(createAMDGPUCFGStructurizerPass(*TM)); 165 addPass(createR600ExpandSpecialInstrsPass(*TM)); 166 addPass(&FinalizeMachineBundlesID); 167 addPass(createR600Packetizer(*TM)); 168 addPass(createR600ControlFlowFinalizer(*TM)); 169 } else { 170 addPass(createSILowerControlFlowPass(*TM)); 171 } 172 173 return false; 174} 175 176