LegalizerHelper.cpp File Reference

#include "llvm/CodeGen/GlobalISel/LegalizerHelper.h"
#include "llvm/CodeGen/GlobalISel/CallLowering.h"
#include "llvm/CodeGen/GlobalISel/GISelChangeObserver.h"
#include "llvm/CodeGen/GlobalISel/LegalizerInfo.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/CodeGen/TargetLowering.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"

Include dependency graph for LegalizerHelper.cpp:

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Macros
#define	DEBUG_TYPE   "legalizer"

Functions
static std::pair< int, int >	getNarrowTypeBreakDown (LLT OrigTy, LLT NarrowTy, LLT &LeftoverTy)
	Try to break down OrigTy into NarrowTy sized pieces. More...
static LLT	getGCDType (LLT OrigTy, LLT TargetTy)
static RTLIB::Libcall	getRTLibDesc (unsigned Opcode, unsigned Size)
static LegalizerHelper::LegalizeResult	simpleLibcall (MachineInstr &MI, MachineIRBuilder &MIRBuilder, unsigned Size, Type *OpType)
static RTLIB::Libcall	getConvRTLibDesc (unsigned Opcode, Type *ToType, Type *FromType)
static LegalizerHelper::LegalizeResult	conversionLibcall (MachineInstr &MI, MachineIRBuilder &MIRBuilder, Type *ToType, Type *FromType)
static CmpInst::Predicate	minMaxToCompare (unsigned Opc)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "legalizer"

Definition at line 27 of file LegalizerHelper.cpp.

Function Documentation

conversionLibcall()

static LegalizerHelper::LegalizeResult conversionLibcall ( MachineInstr &  MI, MachineIRBuilder &  MIRBuilder, Type *  ToType, Type *  FromType  )

static

Definition at line 421 of file LegalizerHelper.cpp.

References llvm::createLibcall(), getConvRTLibDesc(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), and llvm::MachineOperand::getReg().

Referenced by llvm::LegalizerHelper::libcall().

getConvRTLibDesc()

static RTLIB::Libcall getConvRTLibDesc ( unsigned  Opcode, Type *  ToType, Type *  FromType  )

static

Definition at line 398 of file LegalizerHelper.cpp.

References llvm::RTLIB::getFPEXT(), llvm::RTLIB::getFPROUND(), llvm::RTLIB::getFPTOSINT(), llvm::RTLIB::getFPTOUINT(), llvm::RTLIB::getSINTTOFP(), llvm::RTLIB::getUINTTOFP(), llvm::MVT::getVT(), and llvm_unreachable.

Referenced by conversionLibcall().

getGCDType()

static LLT getGCDType ( LLT  OrigTy, LLT  TargetTy  )

static

Definition at line 174 of file LegalizerHelper.cpp.

References assert(), llvm::MachineIRBuilder::buildBuildVector(), llvm::MachineIRBuilder::buildConcatVectors(), llvm::MachineIRBuilder::buildInsert(), llvm::MachineIRBuilder::buildMerge(), llvm::MachineIRBuilder::buildUndef(), llvm::MachineRegisterInfo::createGenericVirtualRegister(), E, llvm::ArrayRef< T >::empty(), llvm::LLT::getElementType(), llvm::LLT::getNumElements(), llvm::LLT::getSizeInBits(), llvm::greatestCommonDivisor(), I, llvm::LLT::isValid(), llvm::LLT::isVector(), llvm::LegalizerHelper::MIRBuilder, llvm::LLT::scalar(), llvm::LLT::scalarOrVector(), and llvm::ArrayRef< T >::size().

Referenced by llvm::LegalizerHelper::fewerElementsVectorUnmergeValues().

getNarrowTypeBreakDown()

static std::pair<int, int> getNarrowTypeBreakDown ( LLT  OrigTy, LLT  NarrowTy, LLT &  LeftoverTy  )

static

Try to break down OrigTy into NarrowTy sized pieces.

Returns the number of NarrowTy elements needed to reconstruct OrigTy, with any leftover piece as type LeftoverTy

Returns -1 in the first element of the pair if the breakdown is not satisfiable.

Definition at line 40 of file LegalizerHelper.cpp.

References assert(), llvm::LLT::getScalarSizeInBits(), llvm::LLT::getSizeInBits(), llvm::LLT::isValid(), llvm::LLT::isVector(), llvm::LLT::scalar(), llvm::LLT::scalarOrVector(), and Size.

Referenced by llvm::LegalizerHelper::fewerElementsVectorMultiEltType(), llvm::LegalizerHelper::fewerElementsVectorPhi(), and llvm::LegalizerHelper::reduceLoadStoreWidth().

getRTLibDesc()

static RTLIB::Libcall getRTLibDesc ( unsigned  Opcode, unsigned  Size  )

static

Definition at line 239 of file LegalizerHelper.cpp.

References assert(), and llvm_unreachable.

Referenced by simpleLibcall().

minMaxToCompare()

static CmpInst::Predicate minMaxToCompare ( unsigned  Opc )

static

Definition at line 3731 of file LegalizerHelper.cpp.

References llvm::CmpInst::ICMP_SGT, llvm::CmpInst::ICMP_SLT, llvm::CmpInst::ICMP_UGT, llvm::CmpInst::ICMP_ULT, and llvm_unreachable.

Referenced by llvm::LegalizerHelper::lowerMinMax().

simpleLibcall()

static LegalizerHelper::LegalizeResult simpleLibcall ( MachineInstr &  MI, MachineIRBuilder &  MIRBuilder, unsigned  Size, Type *  OpType  )

static

Definition at line 334 of file LegalizerHelper.cpp.

References llvm::AMDGPU::HSAMD::Kernel::Key::Args, llvm::createLibcall(), llvm::MachineInstr::getNumOperands(), llvm::MachineInstr::getOpcode(), llvm::MachineInstr::getOperand(), llvm::MachineOperand::getReg(), getRTLibDesc(), and Size.

Referenced by llvm::LegalizerHelper::libcall().