SPIRVPostLegalizer.cpp File Reference

#include "SPIRV.h"
#include "SPIRVSubtarget.h"
#include "SPIRVUtils.h"
#include "llvm/CodeGen/GlobalISel/GenericMachineInstrs.h"
#include "llvm/IR/IntrinsicsSPIRV.h"
#include "llvm/Support/Debug.h"
#include <stack>

Go to the source code of this file.

Namespaces
namespace	llvm
	This is an optimization pass for GlobalISel generic memory operations.

Macros
#define	DEBUG_TYPE   "spirv-postlegalizer"

Functions
void	llvm::updateRegType (Register Reg, Type *Ty, SPIRVType *SpirvTy, SPIRVGlobalRegistry *GR, MachineIRBuilder &MIB, MachineRegisterInfo &MRI)
	Helper external function for assigning SPIRVType to a register, ensuring the register class and type are set in MRI.
void	llvm::processInstr (MachineInstr &MI, MachineIRBuilder &MIB, MachineRegisterInfo &MRI, SPIRVGlobalRegistry *GR, SPIRVType *KnownResType)
static SPIRVType *	deduceIntTypeFromResult (Register ResVReg, MachineIRBuilder &MIB, SPIRVGlobalRegistry *GR)
static bool	deduceAndAssignTypeForGUnmerge (MachineInstr *I, MachineFunction &MF, SPIRVGlobalRegistry *GR)
static SPIRVType *	deduceTypeFromSingleOperand (MachineInstr *I, MachineIRBuilder &MIB, SPIRVGlobalRegistry *GR, unsigned OpIdx)
static SPIRVType *	deduceTypeFromOperandRange (MachineInstr *I, MachineIRBuilder &MIB, SPIRVGlobalRegistry *GR, unsigned StartOp, unsigned EndOp)
static SPIRVType *	deduceTypeFromResultRegister (MachineInstr *Use, Register UseRegister, SPIRVGlobalRegistry *GR, MachineIRBuilder &MIB)
static SPIRVType *	deduceTypeFromUses (Register Reg, MachineFunction &MF, SPIRVGlobalRegistry *GR, MachineIRBuilder &MIB)
static SPIRVType *	deduceResultTypeFromOperands (MachineInstr *I, SPIRVGlobalRegistry *GR, MachineIRBuilder &MIB)
static bool	deduceAndAssignSpirvType (MachineInstr *I, MachineFunction &MF, SPIRVGlobalRegistry *GR, MachineIRBuilder &MIB)
static bool	requiresSpirvType (MachineInstr &I, SPIRVGlobalRegistry *GR, MachineRegisterInfo &MRI)
static void	registerSpirvTypeForNewInstructions (MachineFunction &MF, SPIRVGlobalRegistry *GR)
static bool	hasAssignType (Register Reg, MachineRegisterInfo &MRI)
static void	generateAssignType (MachineInstr &MI, Register ResultRegister, SPIRVType *ResultType, SPIRVGlobalRegistry *GR, MachineRegisterInfo &MRI)
static void	ensureAssignTypeForTypeFolding (MachineFunction &MF, SPIRVGlobalRegistry *GR)
void	visit (MachineFunction &MF, MachineBasicBlock &Start, std::function< void(MachineBasicBlock *)> op)
void	visit (MachineFunction &MF, std::function< void(MachineBasicBlock *)> op)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "spirv-postlegalizer"

Definition at line 24 of file SPIRVPostLegalizer.cpp.

Function Documentation

deduceAndAssignSpirvType()

bool deduceAndAssignSpirvType ( MachineInstr * I, MachineFunction & MF, SPIRVGlobalRegistry * GR, MachineIRBuilder & MIB )

static

Definition at line 226 of file SPIRVPostLegalizer.cpp.

References llvm::SPIRVGlobalRegistry::assignSPIRVTypeToVReg(), llvm::SPIRVGlobalRegistry::CurMF, llvm::dbgs(), deduceAndAssignTypeForGUnmerge(), deduceResultTypeFromOperands(), deduceTypeFromUses(), llvm::MachineFunction::getRegInfo(), I, LLVM_DEBUG, MRI, and llvm::setRegClassType().

Referenced by registerSpirvTypeForNewInstructions().

deduceAndAssignTypeForGUnmerge()

bool deduceAndAssignTypeForGUnmerge ( MachineInstr * I, MachineFunction & MF, SPIRVGlobalRegistry * GR )

static

Definition at line 54 of file SPIRVPostLegalizer.cpp.

References assert(), llvm::SPIRVSubtarget::getInstrInfo(), llvm::LLT::getNumElements(), llvm::SPIRVGlobalRegistry::getOrCreateSPIRVVectorType(), llvm::MachineFunction::getRegInfo(), llvm::SPIRVGlobalRegistry::getScalarOrVectorComponentType(), llvm::SPIRVGlobalRegistry::getSPIRVTypeForVReg(), llvm::MachineFunction::getSubtarget(), I, llvm::LLT::isVector(), MRI, and llvm::setRegClassType().

Referenced by deduceAndAssignSpirvType().

deduceIntTypeFromResult()

SPIRVType * deduceIntTypeFromResult ( Register ResVReg, MachineIRBuilder & MIB, SPIRVGlobalRegistry * GR )

static

Definition at line 47 of file SPIRVPostLegalizer.cpp.

References llvm::MachineIRBuilder::getMRI(), llvm::SPIRVGlobalRegistry::getOrCreateSPIRVIntegerType(), and llvm::MachineRegisterInfo::getType().

Referenced by deduceResultTypeFromOperands().

deduceResultTypeFromOperands()

SPIRVType * deduceResultTypeFromOperands ( MachineInstr * I, SPIRVGlobalRegistry * GR, MachineIRBuilder & MIB )

static

Definition at line 206 of file SPIRVPostLegalizer.cpp.

References deduceIntTypeFromResult(), deduceTypeFromOperandRange(), deduceTypeFromSingleOperand(), and I.

Referenced by deduceAndAssignSpirvType().

deduceTypeFromOperandRange()

SPIRVType * deduceTypeFromOperandRange ( MachineInstr * I, MachineIRBuilder & MIB, SPIRVGlobalRegistry * GR, unsigned StartOp, unsigned EndOp )

static

Definition at line 120 of file SPIRVPostLegalizer.cpp.

References assert(), deduceTypeFromSingleOperand(), and I.

Referenced by deduceResultTypeFromOperands().

deduceTypeFromResultRegister()

SPIRVType * deduceTypeFromResultRegister ( MachineInstr * Use, Register UseRegister, SPIRVGlobalRegistry * GR, MachineIRBuilder & MIB )

static

Definition at line 138 of file SPIRVPostLegalizer.cpp.

References llvm::MachineIRBuilder::getMRI(), llvm::LLT::getNumElements(), llvm::SPIRVGlobalRegistry::getOrCreateSPIRVVectorType(), llvm::SPIRVGlobalRegistry::getScalarOrVectorComponentType(), llvm::SPIRVGlobalRegistry::getSPIRVTypeForVReg(), llvm::MachineRegisterInfo::getType(), and llvm::LLT::isVector().

Referenced by deduceTypeFromUses().

deduceTypeFromSingleOperand()

SPIRVType * deduceTypeFromSingleOperand ( MachineInstr * I, MachineIRBuilder & MIB, SPIRVGlobalRegistry * GR, unsigned OpIdx )

static

Definition at line 102 of file SPIRVPostLegalizer.cpp.

References llvm::MachineIRBuilder::getMRI(), llvm::LLT::getNumElements(), llvm::SPIRVGlobalRegistry::getOrCreateSPIRVVectorType(), llvm::SPIRVGlobalRegistry::getScalarOrVectorComponentType(), llvm::SPIRVGlobalRegistry::getSPIRVTypeForVReg(), llvm::MachineRegisterInfo::getType(), I, llvm::LLT::isVector(), and OpIdx.

Referenced by deduceResultTypeFromOperands(), and deduceTypeFromOperandRange().

deduceTypeFromUses()

SPIRVType * deduceTypeFromUses ( Register Reg, MachineFunction & MF, SPIRVGlobalRegistry * GR, MachineIRBuilder & MIB )

static

Definition at line 158 of file SPIRVPostLegalizer.cpp.

References llvm::cast(), llvm::dbgs(), deduceTypeFromResultRegister(), llvm::MachineFunction::getRegInfo(), LLVM_DEBUG, MRI, and Reg.

Referenced by deduceAndAssignSpirvType().

ensureAssignTypeForTypeFolding()

void ensureAssignTypeForTypeFolding ( MachineFunction & MF, SPIRVGlobalRegistry * GR )

static

Definition at line 399 of file SPIRVPostLegalizer.cpp.

References assert(), llvm::dbgs(), generateAssignType(), llvm::MachineFunction::getName(), llvm::MachineFunction::getRegInfo(), llvm::SPIRVGlobalRegistry::getSPIRVTypeForVReg(), hasAssignType(), llvm::isTypeFoldingSupported(), LLVM_DEBUG, MBB, MI, and MRI.

generateAssignType()

void generateAssignType ( MachineInstr & MI, Register ResultRegister, SPIRVType * ResultType, SPIRVGlobalRegistry * GR, MachineRegisterInfo & MRI )

static

Definition at line 360 of file SPIRVPostLegalizer.cpp.

References llvm::MachineInstrBuilder::addDef(), llvm::MachineInstrBuilder::addUse(), llvm::SPIRVGlobalRegistry::assignSPIRVTypeToVReg(), llvm::MachineIRBuilder::buildInstr(), llvm::dbgs(), E(), llvm::MachineIRBuilder::getMF(), llvm::MachineOperand::getReg(), llvm::SPIRVGlobalRegistry::getRegClass(), llvm::SPIRVGlobalRegistry::getSPIRVTypeID(), I, LLVM_DEBUG, MI, MRI, llvm::printReg(), llvm::MachineInstrBuilder::setMIFlags(), llvm::MachineOperand::setReg(), and llvm::updateRegType().

Referenced by ensureAssignTypeForTypeFolding().

hasAssignType()

bool hasAssignType ( Register Reg, MachineRegisterInfo & MRI )

static

Definition at line 351 of file SPIRVPostLegalizer.cpp.

References MRI, and Reg.

Referenced by ensureAssignTypeForTypeFolding().

registerSpirvTypeForNewInstructions()

void registerSpirvTypeForNewInstructions ( MachineFunction & MF, SPIRVGlobalRegistry * GR )

static

Definition at line 287 of file SPIRVPostLegalizer.cpp.

References Changed, llvm::dbgs(), deduceAndAssignSpirvType(), llvm::SmallVectorTemplateCommon< T, typename >::empty(), llvm::LLT::getElementType(), llvm::LLT::getNumElements(), llvm::SPIRVGlobalRegistry::getOrCreateSPIRVIntegerType(), llvm::SPIRVGlobalRegistry::getOrCreateSPIRVVectorType(), llvm::MachineFunction::getRegInfo(), llvm::LLT::getSizeInBits(), llvm::SPIRVGlobalRegistry::getSPIRVTypeForVReg(), I, llvm::LLT::isVector(), LLVM_DEBUG, MBB, MRI, llvm::SmallVectorTemplateBase< T, bool >::push_back(), requiresSpirvType(), and llvm::setRegClassType().

requiresSpirvType()

bool requiresSpirvType ( MachineInstr & I, SPIRVGlobalRegistry * GR, MachineRegisterInfo & MRI )

static

Definition at line 259 of file SPIRVPostLegalizer.cpp.

References llvm::SPIRVGlobalRegistry::CurMF, llvm::dbgs(), llvm::SPIRVGlobalRegistry::getSPIRVTypeForVReg(), I, LLVM_DEBUG, MRI, and llvm::setRegClassType().

Referenced by registerSpirvTypeForNewInstructions().

visit() [1/2]

void visit	(	MachineFunction &	MF,
		MachineBasicBlock &	Start,
		std::function< void(MachineBasicBlock *)>	op )

Definition at line 426 of file SPIRVPostLegalizer.cpp.

References llvm::SmallPtrSetImpl< PtrType >::contains(), llvm::SmallPtrSetImpl< PtrType >::insert(), MBB, and op.

Referenced by llvm::computeDeadSymbolsAndUpdateIndirectCalls(), llvm::ScalarEvolution::getLosslessPtrToIntExpr(), and visit().

visit() [2/2]

void visit	(	MachineFunction &	MF,
		std::function< void(MachineBasicBlock *)>	op )

Definition at line 450 of file SPIRVPostLegalizer.cpp.

References llvm::MachineFunction::begin(), op, and visit().