CombinerHelper.cpp File Reference

#include "llvm/CodeGen/GlobalISel/CombinerHelper.h"
#include "llvm/CodeGen/GlobalISel/Combiner.h"
#include "llvm/CodeGen/GlobalISel/GISelChangeObserver.h"
#include "llvm/CodeGen/GlobalISel/GISelKnownBits.h"
#include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h"
#include "llvm/CodeGen/GlobalISel/Utils.h"
#include "llvm/CodeGen/MachineDominators.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/CodeGen/TargetLowering.h"
#include "llvm/Target/TargetMachine.h"

Include dependency graph for CombinerHelper.cpp:

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "gi-combiner"

Functions
static bool	shouldLowerMemFuncForSize (const MachineFunction &MF)
static bool	findGISelOptimalMemOpLowering (std::vector< LLT > &MemOps, unsigned Limit, uint64_t Size, unsigned DstAlign, unsigned SrcAlign, bool IsMemset, bool ZeroMemset, bool MemcpyStrSrc, bool AllowOverlap, unsigned DstAS, unsigned SrcAS, const AttributeList &FuncAttributes, const TargetLowering &TLI)
static Type *	getTypeForLLT (LLT Ty, LLVMContext &C)
static Register	getMemsetValue (Register Val, LLT Ty, MachineIRBuilder &MIB)

Variables
static cl::opt< bool >	ForceLegalIndexing ("force-legal-indexing", cl::Hidden, cl::init(false), cl::desc("Force all indexed operations to be " "legal for the GlobalISel combiner"))

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "gi-combiner"

Definition at line 22 of file CombinerHelper.cpp.

Function Documentation

findGISelOptimalMemOpLowering()

static bool findGISelOptimalMemOpLowering ( std::vector< LLT > &  MemOps, unsigned  Limit, uint64_t  Size, unsigned  DstAlign, unsigned  SrcAlign, bool  IsMemset, bool  ZeroMemset, bool  MemcpyStrSrc, bool  AllowOverlap, unsigned  DstAS, unsigned  SrcAS, const AttributeList &  FuncAttributes, const TargetLowering &  TLI  )

static

Definition at line 636 of file CombinerHelper.cpp.

References llvm::TargetLoweringBase::allowsMisalignedMemoryAccesses(), assert(), llvm::CallingConv::Fast, llvm::getMVTForLLT(), llvm::TargetLoweringBase::getOptimalMemOpLLT(), llvm::LLT::getSizeInBits(), llvm::LLT::getSizeInBytes(), llvm::LLT::isVector(), llvm::MachineMemOperand::MONone, llvm::PowerOf2Floor(), and llvm::LLT::scalar().

Referenced by getMemsetValue().

getMemsetValue()

static Register getMemsetValue ( Register  Val, LLT  Ty, MachineIRBuilder &  MIB  )

static

Definition at line 714 of file CombinerHelper.cpp.

References assert(), llvm::MachineIRBuilder::buildConstant(), llvm::MachineIRBuilder::buildGEP(), llvm::MachineIRBuilder::buildLoad(), llvm::MachineIRBuilder::buildMul(), llvm::MachineIRBuilder::buildStore(), llvm::MachineIRBuilder::buildTrunc(), llvm::MachineIRBuilder::buildZExtOrTrunc(), C, llvm::dbgs(), llvm::MachineInstr::eraseFromParent(), findGISelOptimalMemOpLowering(), llvm::MachinePointerInfo::getAddrSpace(), llvm::getConstantVRegValWithLookThrough(), llvm::Function::getContext(), llvm::Instruction::getFunction(), llvm::MachineOperand::getIndex(), llvm::MachineIRBuilder::getMRI(), llvm::getMVTForLLT(), llvm::MachineFrameInfo::getObjectAlignment(), llvm::getOpcodeDef(), llvm::MachineInstr::getOperand(), llvm::MachineBasicBlock::getParent(), llvm::MachineInstr::getParent(), llvm::MachineInstrBuilder::getReg(), llvm::LLT::getScalarSizeInBits(), llvm::LLT::getScalarType(), llvm::LLT::getSizeInBits(), llvm::getSizeInBits(), llvm::LLT::getSizeInBytes(), llvm::APInt::getSplat(), llvm::MachineFunction::getSubtarget(), llvm::TargetSubtargetInfo::getTargetLowering(), llvm::MachineRegisterInfo::getType(), getTypeForLLT(), I, llvm::MachineFrameInfo::isFixedObjectIndex(), llvm::LLT::isVector(), llvm::AMDGPU::HSAMD::Kernel::Arg::Key::IsVolatile, LLVM_DEBUG, Magic, llvm::MachineInstr::memoperands_begin(), llvm::MinAlign(), llvm::CombinerHelper::MRI, llvm::TargetRegisterInfo::needsStackRealignment(), llvm::SmallVectorTemplateBase< T >::push_back(), Register, llvm::LLT::scalar(), llvm::NVPTX::PTXLdStInstCode::Scalar, llvm::MachineFrameInfo::setObjectAlignment(), shouldLowerMemFuncForSize(), Size, and TRI.

getTypeForLLT()

static Type* getTypeForLLT ( LLT  Ty, LLVMContext &  C  )

static

Definition at line 706 of file CombinerHelper.cpp.

References llvm::IntegerType::get(), llvm::VectorType::get(), llvm::LLT::getNumElements(), llvm::LLT::getScalarSizeInBits(), llvm::LLT::getSizeInBits(), and llvm::LLT::isVector().

Referenced by getMemsetValue().

shouldLowerMemFuncForSize()

static bool shouldLowerMemFuncForSize ( const MachineFunction &  MF )

static

Definition at line 626 of file CombinerHelper.cpp.

References llvm::MachineFunction::getFunction(), llvm::MachineFunction::getTarget(), llvm::TargetMachine::getTargetTriple(), llvm::Function::hasMinSize(), llvm::Function::hasOptSize(), and llvm::Triple::isOSDarwin().

Referenced by getMemsetValue().

Variable Documentation

ForceLegalIndexing

cl::opt<bool> ForceLegalIndexing("force-legal-indexing", cl::Hidden, cl::init(false), cl::desc("Force all indexed operations to be " "legal for the GlobalISel combiner"))

static

Referenced by llvm::CombinerHelper::dominates().