LLVM: lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp File Reference

LLVM 8.0.1

This file implements the targeting of the InstructionSelector class for AMDGPU. More...

#include "AMDGPUInstructionSelector.h"
#include "AMDGPUInstrInfo.h"
#include "AMDGPURegisterBankInfo.h"
#include "AMDGPURegisterInfo.h"
#include "AMDGPUSubtarget.h"
#include "AMDGPUTargetMachine.h"
#include "SIMachineFunctionInfo.h"
#include "MCTargetDesc/AMDGPUMCTargetDesc.h"
#include "llvm/CodeGen/GlobalISel/InstructionSelector.h"
#include "llvm/CodeGen/GlobalISel/InstructionSelectorImpl.h"
#include "llvm/CodeGen/GlobalISel/Utils.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/IR/Type.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include "AMDGPUGenGlobalISel.inc"

Include dependency graph for AMDGPUInstructionSelector.cpp:

Go to the source code of this file.

Macros
#define	DEBUG_TYPE "amdgpu-isel"

#define	GET_GLOBALISEL_IMPL

#define	AMDGPUSubtarget GCNSubtarget

#define	GET_GLOBALISEL_PREDICATES_INIT

#define	GET_GLOBALISEL_TEMPORARIES_INIT

Functions
static int64_t	getConstant (const MachineInstr *MI)

static MachineInstr *	buildEXP (const TargetInstrInfo &TII, MachineInstr *Insert, unsigned Tgt, unsigned Reg0, unsigned Reg1, unsigned Reg2, unsigned Reg3, unsigned VM, bool Compr, unsigned Enabled, bool Done)

static bool	isConstant (const MachineInstr &MI)

static bool	isInstrUniform (const MachineInstr &MI)

static unsigned	getSmrdOpcode (unsigned BaseOpcode, unsigned LoadSize)

Detailed Description

This file implements the targeting of the InstructionSelector class for AMDGPU.

Todo:: This should be generated by TableGen.

Definition in file AMDGPUInstructionSelector.cpp.

Macro Definition Documentation

◆ AMDGPUSubtarget

#define AMDGPUSubtarget GCNSubtarget

Definition at line 40 of file AMDGPUInstructionSelector.cpp.

◆ DEBUG_TYPE

#define DEBUG_TYPE "amdgpu-isel"

Definition at line 35 of file AMDGPUInstructionSelector.cpp.

Referenced by llvm::AMDGPUInstructionSelector::AMDGPUInstructionSelector().

◆ GET_GLOBALISEL_IMPL

#define GET_GLOBALISEL_IMPL

Definition at line 39 of file AMDGPUInstructionSelector.cpp.

◆ GET_GLOBALISEL_PREDICATES_INIT

#define GET_GLOBALISEL_PREDICATES_INIT

◆ GET_GLOBALISEL_TEMPORARIES_INIT

#define GET_GLOBALISEL_TEMPORARIES_INIT

Function Documentation

◆ buildEXP()

static MachineInstr* buildEXP	(	const TargetInstrInfo &	TII,
		MachineInstr *	Insert,
		unsigned	Tgt,
		unsigned	Reg0,
		unsigned	Reg1,
		unsigned	Reg2,
		unsigned	Reg3,
		unsigned	VM,
		bool	Compr,
		unsigned	Enabled,
		bool	Done
	)

static

Definition at line 217 of file AMDGPUInstructionSelector.cpp.

References llvm::ARM_AM::add, llvm::MachineInstrBuilder::addImm(), llvm::MachineInstr::addImplicitDefUseOperands(), llvm::MachineInstrBuilder::addReg(), llvm::Intrinsic::amdgcn_exp, llvm::Intrinsic::amdgcn_exp_compr, llvm::APInt::ashr(), llvm::APFloat::bitcastToAPInt(), llvm::BuildMI(), llvm::MachineOperand::ChangeToImmediate(), llvm::RegisterBankInfo::constrainGenericRegister(), llvm::constrainSelectedInstRegOperands(), llvm::MachineRegisterInfo::createVirtualRegister(), Enabled, llvm::MachineInstr::eraseFromParent(), llvm::SIInstrFlags::EXP, llvm::MCInstrInfo::get(), llvm::MachineOperand::getCImm(), getConstant(), llvm::SIRegisterInfo::getConstrainedRegClassForOperand(), llvm::MachineInstr::getDebugLoc(), llvm::MachineOperand::getFPImm(), llvm::RegisterBank::getID(), llvm::MachineOperand::getImm(), llvm::MachineOperand::getIntrinsicID(), llvm::MachineInstr::getOperand(), llvm::MachineBasicBlock::getParent(), llvm::MachineInstr::getParent(), llvm::MachineOperand::getReg(), llvm::MachineRegisterInfo::getRegBankOrNull(), llvm::SIRegisterInfo::getRegClassForReg(), llvm::MachineFunction::getRegInfo(), llvm::LLT::getSizeInBits(), llvm::MachineRegisterInfo::getType(), llvm::ConstantFP::getValueAPF(), llvm::MachineRegisterInfo::getVRegDef(), llvm::ConstantInt::getZExtValue(), llvm::APInt::getZExtValue(), llvm::MachineOperand::isCImm(), llvm::MachineOperand::isFPImm(), llvm::SIRegisterInfo::isSGPRClass(), MRI, llvm::MipsISD::Ret, llvm::MachineInstr::setDesc(), Size, llvm::APInt::trunc(), and llvm::RegState::Undef.

◆ getConstant()

static int64_t getConstant ( const MachineInstr * MI )

static

Definition at line 117 of file AMDGPUInstructionSelector.cpp.

References llvm::ARM_AM::add, llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::Intrinsic::amdgcn_cvt_pkrtz, llvm::Intrinsic::amdgcn_kernarg_segment_ptr, llvm::BuildMI(), llvm::RegisterBankInfo::constrainGenericRegister(), llvm::MachineRegisterInfo::createVirtualRegister(), llvm::MachineInstr::eraseFromParent(), llvm::MachineInstr::explicit_operands(), llvm::MachineOperand::getCImm(), llvm::SIRegisterInfo::getConstrainedRegClassForOperand(), llvm::MachineInstr::getDebugLoc(), llvm::MachineFunction::getInfo(), llvm::MachineOperand::getIntrinsicID(), llvm::MachineRegisterInfo::getLiveInVirtReg(), llvm::MachineInstr::getOperand(), llvm::MachineBasicBlock::getParent(), llvm::MachineInstr::getParent(), llvm::SIMachineFunctionInfo::getPreloadedValue(), llvm::MachineOperand::getReg(), llvm::MachineFunction::getRegInfo(), llvm::ConstantInt::getSExtValue(), I, llvm::TargetRegisterInfo::isPhysicalRegister(), llvm::MachineOperand::isReg(), llvm::AMDGPUFunctionArgInfo::KERNARG_SEGMENT_PTR, llvm::Intrinsic::maxnum, llvm::Intrinsic::minnum, MRI, llvm::report_fatal_error(), llvm::MachineInstr::setDesc(), and Size.

Referenced by buildEXP(), EvaluateConstantChrecAtConstant(), llvm::ScalarEvolution::forgetValue(), llvm::ScalarEvolution::getAddExpr(), llvm::SelectionDAG::getAllOnesConstant(), llvm::ScalarEvolution::getConstant(), llvm::ScalarEvolution::getContext(), llvm::ScalarEvolution::getMulExpr(), llvm::ScalarEvolution::getNegativeSCEV(), llvm::ScalarEvolution::getNotSCEV(), llvm::SelectionDAG::getObjectPtrOffset(), llvm::ScalarEvolution::getOffsetOfExpr(), llvm::ScalarEvolution::getOne(), getOtherIncomingValue(), getRangeForAffineARHelper(), llvm::ScalarEvolution::getSignExtendExpr(), llvm::ScalarEvolution::getSizeOfExpr(), llvm::ScalarEvolution::getSMaxExpr(), llvm::SelectionDAG::getTargetConstant(), llvm::ScalarEvolution::getTruncateExpr(), llvm::ScalarEvolution::getUDivExactExpr(), llvm::ScalarEvolution::getUDivExpr(), llvm::ScalarEvolution::getUMaxExpr(), llvm::ScalarEvolution::getZero(), llvm::ScalarEvolution::getZeroExtendExpr(), IsKnownPredicateViaMinOrMax(), llvm::ScalarEvolution::isLoopEntryGuardedByCond(), llvm::SelectionDAG::setRoot(), llvm::ScalarEvolution::SimplifyICmpOperands(), SolveQuadraticAddRecRange(), llvm::SelectionDAG::SplitVector(), and llvm::SelectionDAG::UnrollVectorOp().

◆ getSmrdOpcode()

static unsigned getSmrdOpcode	(	unsigned	BaseOpcode,
		unsigned	LoadSize
	)

static

Definition at line 448 of file AMDGPUInstructionSelector.cpp.

References llvm::ARM_AM::add, llvm::MachineInstrBuilder::addImm(), llvm::MachineInstrBuilder::addReg(), llvm::BuildMI(), AMDGPUAS::CONSTANT_ADDRESS, AMDGPUAS::CONSTANT_ADDRESS_32BIT, llvm::constrainSelectedInstRegOperands(), llvm::ArrayRef< T >::empty(), llvm::MachineInstr::eraseFromParent(), getAddrSpace(), llvm::MachineInstr::getDebugLoc(), llvm::GCNSubtarget::getGeneration(), llvm::MachineInstr::getOperand(), llvm::MachineBasicBlock::getParent(), llvm::MachineInstr::getParent(), llvm::MachineOperand::getReg(), llvm::MachineFunction::getRegInfo(), llvm::AMDGPU::getSMRDEncodedOffset(), llvm::MachineFunction::getSubtarget(), llvm::MachineInstr::hasOneMemOperand(), isInstrUniform(), llvm::AMDGPU::isLegalSMRDImmOffset(), llvm::isUInt< 32 >(), llvm_unreachable, llvm::MachineInstr::memoperands_begin(), llvm::MipsISD::Ret, llvm::AMDGPUSubtarget::SEA_ISLANDS, llvm::ArrayRef< T >::size(), and llvm::SIInstrFlags::SMRD.

◆ isConstant()

static bool isConstant ( const MachineInstr & MI )

static

◆ isInstrUniform()

static bool isInstrUniform ( const MachineInstr & MI )

static

Definition at line 426 of file AMDGPUInstructionSelector.cpp.

References AMDGPUAS::CONSTANT_ADDRESS_32BIT, llvm::dyn_cast(), llvm::MachineMemOperand::getAddrSpace(), llvm::Instruction::getMetadata(), llvm::MachineMemOperand::getValue(), llvm::MachineInstr::hasOneMemOperand(), and llvm::MachineInstr::memoperands_begin().

Referenced by getSmrdOpcode().