RISCVMatInt.cpp File Reference

#include "RISCVMatInt.h"
#include "MCTargetDesc/RISCVMCTargetDesc.h"
#include "llvm/ADT/APInt.h"
#include "llvm/MC/MCInstBuilder.h"
#include "llvm/Support/MathExtras.h"

Go to the source code of this file.

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

Functions
static int	getInstSeqCost (RISCVMatInt::InstSeq &Res, bool HasRVC)
static void	generateInstSeqImpl (int64_t Val, const MCSubtargetInfo &STI, RISCVMatInt::InstSeq &Res)
static unsigned	extractRotateInfo (int64_t Val)
static void	generateInstSeqLeadingZeros (int64_t Val, const MCSubtargetInfo &STI, RISCVMatInt::InstSeq &Res)
InstSeq	llvm::RISCVMatInt::generateInstSeq (int64_t Val, const MCSubtargetInfo &STI)
void	llvm::RISCVMatInt::generateMCInstSeq (int64_t Val, const MCSubtargetInfo &STI, MCRegister DestReg, SmallVectorImpl< MCInst > &Insts)
InstSeq	llvm::RISCVMatInt::generateTwoRegInstSeq (int64_t Val, const MCSubtargetInfo &STI, unsigned &ShiftAmt, unsigned &AddOpc)
int	llvm::RISCVMatInt::getIntMatCost (const APInt &Val, unsigned Size, const MCSubtargetInfo &STI, bool CompressionCost, bool FreeZeroes)

Function Documentation

extractRotateInfo()

static unsigned extractRotateInfo ( int64_t  Val )

static

Definition at line 188 of file RISCVMatInt.cpp.

References llvm::countl_one(), llvm::countr_one(), llvm::Hi_32(), and llvm::Lo_32().

Referenced by llvm::RISCVMatInt::generateInstSeq().

generateInstSeqImpl()

static void generateInstSeqImpl ( int64_t  Val, const MCSubtargetInfo &  STI, RISCVMatInt::InstSeq &  Res  )

static

Definition at line 53 of file RISCVMatInt.cpp.

References assert(), llvm::countr_zero(), llvm::SmallVectorImpl< T >::emplace_back(), generateInstSeqImpl(), llvm::MCSubtargetInfo::hasFeature(), llvm::isPowerOf2_64(), llvm::Log2_64(), Opc, and Unsigned.

Referenced by llvm::RISCVMatInt::generateInstSeq(), generateInstSeqImpl(), and generateInstSeqLeadingZeros().

generateInstSeqLeadingZeros()

static void generateInstSeqLeadingZeros ( int64_t  Val, const MCSubtargetInfo &  STI, RISCVMatInt::InstSeq &  Res  )

static

Definition at line 206 of file RISCVMatInt.cpp.

References assert(), llvm::SmallVectorImpl< T >::clear(), llvm::countl_zero(), llvm::SmallVectorImpl< T >::emplace_back(), llvm::SmallVectorBase< Size_T >::empty(), generateInstSeqImpl(), llvm::MCSubtargetInfo::hasFeature(), and llvm::SmallVectorBase< Size_T >::size().

Referenced by llvm::RISCVMatInt::generateInstSeq().

getInstSeqCost()

static int getInstSeqCost ( RISCVMatInt::InstSeq &  Res, bool  HasRVC  )

static

Definition at line 16 of file RISCVMatInt.cpp.

References HasRVC, and llvm::SmallVectorBase< Size_T >::size().

Referenced by llvm::RISCVMatInt::getIntMatCost().