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// The AMDGPU target machine contains all of the hardware specific information 11// needed to emit code for R600 and SI GPUs. 12// 13//===----------------------------------------------------------------------===// 14 15#include "AMDGPUTargetMachine.h" 16#include "AMDGPU.h" 17#include "R600ISelLowering.h" 18#include "R600InstrInfo.h" 19#include "SIISelLowering.h" 20#include "SIInstrInfo.h" 21#include "llvm/Analysis/Passes.h" 22#include "llvm/Analysis/Verifier.h" 23#include "llvm/CodeGen/MachineFunctionAnalysis.h" 24#include "llvm/CodeGen/MachineModuleInfo.h" 25#include "llvm/CodeGen/Passes.h" 26#include "llvm/MC/MCAsmInfo.h" 27#include "llvm/PassManager.h" 28#include "llvm/Support/TargetRegistry.h" 29#include "llvm/Support/raw_os_ostream.h" 30#include "llvm/Transforms/IPO.h" 31#include "llvm/Transforms/Scalar.h" 32#include <llvm/CodeGen/Passes.h> 33 34using namespace llvm; 35 36extern "C" void LLVMInitializeAMDGPUTarget() { 37 // Register the target 38 RegisterTargetMachine<AMDGPUTargetMachine> X(TheAMDGPUTarget); 39} 40 41AMDGPUTargetMachine::AMDGPUTargetMachine(const Target &T, StringRef TT, 42 StringRef CPU, StringRef FS, 43 TargetOptions Options, 44 Reloc::Model RM, CodeModel::Model CM, 45 CodeGenOpt::Level OptLevel 46) 47: 48 LLVMTargetMachine(T, TT, CPU, FS, Options, RM, CM, OptLevel), 49 Subtarget(TT, CPU, FS), 50 DataLayout(Subtarget.getDataLayout()), 51 FrameLowering(TargetFrameLowering::StackGrowsUp, 52 Subtarget.device()->getStackAlignment(), 0), 53 IntrinsicInfo(this), 54 InstrItins(&Subtarget.getInstrItineraryData()), 55 mDump(false) 56 57{ 58 // TLInfo uses InstrInfo so it must be initialized after. 59 if (Subtarget.device()->getGeneration() <= AMDGPUDeviceInfo::HD6XXX) { 60 InstrInfo = new R600InstrInfo(*this); 61 TLInfo = new R600TargetLowering(*this); 62 } else { 63 InstrInfo = new SIInstrInfo(*this); 64 TLInfo = new SITargetLowering(*this); 65 } 66} 67 68AMDGPUTargetMachine::~AMDGPUTargetMachine() 69{ 70} 71 72namespace { 73class AMDGPUPassConfig : public TargetPassConfig { 74public: 75 AMDGPUPassConfig(AMDGPUTargetMachine *TM, PassManagerBase &PM) 76 : TargetPassConfig(TM, PM) {} 77 78 AMDGPUTargetMachine &getAMDGPUTargetMachine() const { 79 return getTM<AMDGPUTargetMachine>(); 80 } 81 82 virtual bool addPreISel(); 83 virtual bool addInstSelector(); 84 virtual bool addPreRegAlloc(); 85 virtual bool addPostRegAlloc(); 86 virtual bool addPreSched2(); 87 virtual bool addPreEmitPass(); 88}; 89} // End of anonymous namespace 90 91TargetPassConfig *AMDGPUTargetMachine::createPassConfig(PassManagerBase &PM) { 92 return new AMDGPUPassConfig(this, PM); 93} 94 95bool 96AMDGPUPassConfig::addPreISel() 97{ 98 const AMDGPUSubtarget &ST = TM->getSubtarget<AMDGPUSubtarget>(); 99 if (ST.device()->getGeneration() <= AMDGPUDeviceInfo::HD6XXX) { 100 PM->add(createR600KernelParametersPass( 101 getAMDGPUTargetMachine().getTargetData())); 102 } 103 return false; 104} 105 106bool AMDGPUPassConfig::addInstSelector() { 107 PM->add(createAMDGPUPeepholeOpt(*TM)); 108 PM->add(createAMDGPUISelDag(getAMDGPUTargetMachine())); 109 return false; 110} 111 112bool AMDGPUPassConfig::addPreRegAlloc() { 113 const AMDGPUSubtarget &ST = TM->getSubtarget<AMDGPUSubtarget>(); 114 115 if (ST.device()->getGeneration() > AMDGPUDeviceInfo::HD6XXX) { 116 PM->add(createSIAssignInterpRegsPass(*TM)); 117 } 118 PM->add(createAMDGPUConvertToISAPass(*TM)); 119 return false; 120} 121 122bool AMDGPUPassConfig::addPostRegAlloc() { 123 return false; 124} 125 126bool AMDGPUPassConfig::addPreSched2() { 127 128 addPass(IfConverterID); 129 return false; 130} 131 132bool AMDGPUPassConfig::addPreEmitPass() { 133 PM->add(createAMDGPUCFGPreparationPass(*TM)); 134 PM->add(createAMDGPUCFGStructurizerPass(*TM)); 135 136 const AMDGPUSubtarget &ST = TM->getSubtarget<AMDGPUSubtarget>(); 137 if (ST.device()->getGeneration() <= AMDGPUDeviceInfo::HD6XXX) { 138 PM->add(createR600ExpandSpecialInstrsPass(*TM)); 139 addPass(FinalizeMachineBundlesID); 140 } 141 142 return false; 143} 144 145