X86FixupVectorConstants.cpp File Reference

#include "X86.h"
#include "X86InstrFoldTables.h"
#include "X86InstrInfo.h"
#include "X86Subtarget.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/CodeGen/MachineConstantPool.h"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "x86-fixup-vector-constants"

Functions
	STATISTIC (NumInstChanges, "Number of instructions changes")
static const Constant *	getConstantFromPool (const MachineInstr &MI, const MachineOperand &Op)
static std::optional< APInt >	extractConstantBits (const Constant *C)
static std::optional< APInt >	getSplatableConstant (const Constant *C, unsigned SplatBitWidth)
static Constant *	rebuildSplatableConstant (const Constant *C, unsigned SplatBitWidth)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "x86-fixup-vector-constants"

Definition at line 26 of file X86FixupVectorConstants.cpp.

Function Documentation

extractConstantBits()

static std::optional< APInt > extractConstantBits ( const Constant *  C )

static

Definition at line 84 of file X86FixupVectorConstants.cpp.

References assert(), llvm::CallingConv::C, E, extractConstantBits(), llvm::APInt::getSplat(), llvm::APInt::getZero(), and I.

Referenced by extractConstantBits(), and getSplatableConstant().

getConstantFromPool()

static const Constant * getConstantFromPool ( const MachineInstr &  MI, const MachineOperand &  Op  )

static

Definition at line 66 of file X86FixupVectorConstants.cpp.

References llvm::MachineConstantPoolEntry::ConstVal, llvm::MachineConstantPoolEntry::isMachineConstantPoolEntry(), MI, and llvm::MachineConstantPoolEntry::Val.

Referenced by addConstantComments().

getSplatableConstant()

static std::optional< APInt > getSplatableConstant ( const Constant *  C, unsigned  SplatBitWidth  )

static

Definition at line 127 of file X86FixupVectorConstants.cpp.

References assert(), llvm::CallingConv::C, extractConstantBits(), llvm::Constant::getAggregateElement(), llvm::Type::getPrimitiveSizeInBits(), llvm::Type::getScalarSizeInBits(), llvm::APInt::getZero(), I, Idx, and llvm::APInt::insertBits().

Referenced by rebuildSplatableConstant().

rebuildSplatableConstant()

static Constant * rebuildSplatableConstant ( const Constant *  C, unsigned  SplatBitWidth  )

static

Definition at line 181 of file X86FixupVectorConstants.cpp.

References llvm::CallingConv::C, llvm::ConstantDataVector::get(), llvm::Type::getContext(), llvm::ConstantDataVector::getFP(), llvm::Type::getPrimitiveSizeInBits(), llvm::Type::getScalarType(), getSplatableConstant(), I, llvm::Type::is16bitFPTy(), llvm::Type::isDoubleTy(), llvm::Type::isFloatTy(), llvm::SmallVectorTemplateBase< T, bool >::push_back(), and llvm::Splat.

STATISTIC()

STATISTIC	(	NumInstChanges	,
		"Number of instructions changes"
	)