RISCVTargetTransformInfo.cpp File Reference

#include "RISCVTargetTransformInfo.h"
#include "MCTargetDesc/RISCVMatInt.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Analysis/TargetTransformInfo.h"
#include "llvm/CodeGen/BasicTTIImpl.h"
#include "llvm/CodeGen/CostTable.h"
#include "llvm/CodeGen/TargetLowering.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/PatternMatch.h"
#include <cmath>
#include <optional>
#include "llvm/IR/VPIntrinsics.def"

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "riscvtti"
#define	HELPER_MAP_VPID_TO_VPSD(VPID, VPSD)

Functions
static InstructionCost	getIntImmCostImpl (const DataLayout &DL, const RISCVSubtarget *ST, const APInt &Imm, Type *Ty, TTI::TargetCostKind CostKind, bool FreeZeroes)
static bool	canUseShiftPair (Instruction *Inst, const APInt &Imm)
static bool	isRepeatedConcatMask (ArrayRef< int > Mask, int &SubVectorSize)
static VectorType *	getVRGatherIndexType (MVT DataVT, const RISCVSubtarget &ST, LLVMContext &C)
static unsigned	isM1OrSmaller (MVT VT)
static unsigned	getISDForVPIntrinsicID (Intrinsic::ID ID)

Variables
static cl::opt< unsigned >	RVVRegisterWidthLMUL ("riscv-v-register-bit-width-lmul", cl::desc("The LMUL to use for getRegisterBitWidth queries. Affects LMUL used " "by autovectorized code. Fractional LMULs are not supported."), cl::init(2), cl::Hidden)
static cl::opt< unsigned >	SLPMaxVF ("riscv-v-slp-max-vf", cl::desc("Overrides result used for getMaximumVF query which is used " "exclusively by SLP vectorizer."), cl::Hidden)
static const CostTblEntry	VectorIntrinsicCostTable []

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "riscvtti"

Definition at line 23 of file RISCVTargetTransformInfo.cpp.

HELPER_MAP_VPID_TO_VPSD

#define HELPER_MAP_VPID_TO_VPSD	(		VPID,
			VPSD
	)

Value:

  case Intrinsic::VPID:                                                        \
    return ISD::VPSD;

Function Documentation

canUseShiftPair()

static bool canUseShiftPair ( Instruction *  Inst, const APInt &  Imm  )

static

Definition at line 137 of file RISCVTargetTransformInfo.cpp.

References llvm::countr_zero(), llvm::User::getOperand(), and llvm::isShiftedMask_64().

Referenced by llvm::RISCVTTIImpl::getIntImmCostInst().

getIntImmCostImpl()

static InstructionCost getIntImmCostImpl ( const DataLayout &  DL, const RISCVSubtarget *  ST, const APInt &  Imm, Type *  Ty, TTI::TargetCostKind  CostKind, bool  FreeZeroes  )

static

Definition at line 112 of file RISCVTargetTransformInfo.cpp.

References assert(), DL, llvm::RISCVMatInt::getIntMatCost(), llvm::Type::isIntegerTy(), and llvm::TargetTransformInfo::TCC_Free.

Referenced by llvm::RISCVTTIImpl::getIntImmCost(), and llvm::RISCVTTIImpl::getIntImmCostInst().

getISDForVPIntrinsicID()

static unsigned getISDForVPIntrinsicID ( Intrinsic::ID  ID )

static

Definition at line 950 of file RISCVTargetTransformInfo.cpp.

References llvm::ISD::DELETED_NODE.

Referenced by llvm::RISCVTTIImpl::getIntrinsicInstrCost().

getVRGatherIndexType()

static VectorType * getVRGatherIndexType ( MVT  DataVT, const RISCVSubtarget &  ST, LLVMContext &  C  )

static

Definition at line 368 of file RISCVTargetTransformInfo.cpp.

References assert(), llvm::MVT::bitsGT(), llvm::CallingConv::C, llvm::MVT::changeTypeToInteger(), llvm::MVT::changeVectorElementType(), llvm::MVT::getScalarSizeInBits(), llvm::MVT::getScalarType(), and llvm::MVT::getVectorNumElements().

Referenced by llvm::RISCVTTIImpl::getShuffleCost().

isM1OrSmaller()

static unsigned isM1OrSmaller ( MVT  VT )

static

Definition at line 664 of file RISCVTargetTransformInfo.cpp.

References llvm::RISCVTargetLowering::getLMUL(), llvm::RISCVII::LMUL_1, llvm::RISCVII::LMUL_F2, llvm::RISCVII::LMUL_F4, and llvm::RISCVII::LMUL_F8.

Referenced by llvm::RISCVTTIImpl::getScalarizationOverhead().

isRepeatedConcatMask()

static bool isRepeatedConcatMask ( ArrayRef< int >  Mask, int &  SubVectorSize  )

static

Definition at line 346 of file RISCVTargetTransformInfo.cpp.

References I, llvm::isPowerOf2_32(), and Size.

Referenced by llvm::RISCVTTIImpl::getShuffleCost().

Variable Documentation

RVVRegisterWidthLMUL

cl::opt< unsigned > RVVRegisterWidthLMUL("riscv-v-register-bit-width-lmul", cl::desc( "The LMUL to use for getRegisterBitWidth queries. Affects LMUL used " "by autovectorized code. Fractional LMULs are not supported."), cl::init(2), cl::Hidden) ( "riscv-v-register-bit-width-lmul"  , cl::desc( "The LMUL to use for getRegisterBitWidth queries. Affects LMUL used " "by autovectorized code. Fractional LMULs are not supported.")  , cl::init(2)  , cl::Hidden    )

static

Referenced by llvm::RISCVTTIImpl::getRegisterBitWidth().

SLPMaxVF

cl::opt< unsigned > SLPMaxVF("riscv-v-slp-max-vf", cl::desc( "Overrides result used for getMaximumVF query which is used " "exclusively by SLP vectorizer."), cl::Hidden) ( "riscv-v-slp-max-vf"  , cl::desc( "Overrides result used for getMaximumVF query which is used " "exclusively by SLP vectorizer.")  , cl::Hidden    )

static

Referenced by llvm::RISCVTTIImpl::getMaximumVF().

VectorIntrinsicCostTable

const CostTblEntry VectorIntrinsicCostTable[]

static

Definition at line 884 of file RISCVTargetTransformInfo.cpp.

Referenced by llvm::RISCVTTIImpl::getIntrinsicInstrCost().