This file implements the targeting of the Machinelegalizer class for RISC-V. More...

#include "RISCVLegalizerInfo.h"
#include "MCTargetDesc/RISCVMatInt.h"
#include "RISCVMachineFunctionInfo.h"
#include "RISCVSubtarget.h"
#include "llvm/CodeGen/GlobalISel/GIMatchTableExecutor.h"
#include "llvm/CodeGen/GlobalISel/GenericMachineInstrs.h"
#include "llvm/CodeGen/GlobalISel/LegalizerHelper.h"
#include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/CodeGen/MachineMemOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/TargetOpcodes.h"
#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/IR/Type.h"

Functions
static LegalityPredicate	typeIsLegalIntOrFPVec (unsigned TypeIdx, std::initializer_list< LLT > IntOrFPVecTys, const RISCVSubtarget &ST)

static LegalityPredicate	typeIsLegalBoolVec (unsigned TypeIdx, std::initializer_list< LLT > BoolVecTys, const RISCVSubtarget &ST)

static LegalityPredicate	typeIsLegalPtrVec (unsigned TypeIdx, std::initializer_list< LLT > PtrVecTys, const RISCVSubtarget &ST)

static LLT	getMaskTypeFor (LLT VecTy)
	Return the type of the mask type suitable for masking the provided vector type.

static MachineInstrBuilder	buildAllOnesMask (LLT VecTy, const SrcOp &VL, MachineIRBuilder &MIB, MachineRegisterInfo &MRI)
	Creates an all ones mask suitable for masking a vector of type VecTy with vector length VL.

static std::pair< MachineInstrBuilder, MachineInstrBuilder >	buildDefaultVLOps (LLT VecTy, MachineIRBuilder &MIB, MachineRegisterInfo &MRI)
	Gets the two common "VL" operands: an all-ones mask and the vector length.

static MachineInstrBuilder	buildSplatPartsS64WithVL (const DstOp &Dst, const SrcOp &Passthru, Register Lo, Register Hi, const SrcOp &VL, MachineIRBuilder &MIB, MachineRegisterInfo &MRI)

static MachineInstrBuilder	buildSplatSplitS64WithVL (const DstOp &Dst, const SrcOp &Passthru, const SrcOp &Scalar, const SrcOp &VL, MachineIRBuilder &MIB, MachineRegisterInfo &MRI)

static LLT	getLMUL1Ty (LLT VecTy)

static unsigned	getRISCVWOpcode (unsigned Opcode)

Detailed Description

This file implements the targeting of the Machinelegalizer class for RISC-V.

Todo:: This should be generated by TableGen.

Definition in file RISCVLegalizerInfo.cpp.

Function Documentation

◆ buildAllOnesMask()

static MachineInstrBuilder buildAllOnesMask	(	LLT	VecTy,
		const SrcOp &	VL,
		MachineIRBuilder &	MIB,
		MachineRegisterInfo &	MRI
	)

static

Creates an all ones mask suitable for masking a vector of type VecTy with vector length VL.

Definition at line 952 of file RISCVLegalizerInfo.cpp.

References llvm::MachineIRBuilder::buildInstr(), and getMaskTypeFor().

Referenced by buildDefaultVLOps().

◆ buildDefaultVLOps()

static std::pair< MachineInstrBuilder, MachineInstrBuilder > buildDefaultVLOps	(	LLT	VecTy,
		MachineIRBuilder &	MIB,
		MachineRegisterInfo &	MRI
	)

static

Gets the two common "VL" operands: an all-ones mask and the vector length.

VecTy is a scalable vector type.

Definition at line 962 of file RISCVLegalizerInfo.cpp.

References assert(), buildAllOnesMask(), llvm::MachineIRBuilder::buildConstant(), llvm::MachineIRBuilder::getMF(), llvm::MachineFunction::getSubtarget(), llvm::RISCVSubtarget::getXLenVT(), llvm::LLT::isScalableVector(), and MRI.

◆ buildSplatPartsS64WithVL()

static MachineInstrBuilder buildSplatPartsS64WithVL	(	const DstOp &	Dst,
		const SrcOp &	Passthru,
		Register	Lo,
		Register	Hi,
		const SrcOp &	VL,
		MachineIRBuilder &	MIB,
		MachineRegisterInfo &	MRI
	)

static

Definition at line 972 of file RISCVLegalizerInfo.cpp.

References llvm::MachineIRBuilder::buildInstr(), llvm::Hi, and llvm::Lo.

Referenced by buildSplatSplitS64WithVL().

◆ buildSplatSplitS64WithVL()

static MachineInstrBuilder buildSplatSplitS64WithVL	(	const DstOp &	Dst,
		const SrcOp &	Passthru,
		const SrcOp &	Scalar,
		const SrcOp &	VL,
		MachineIRBuilder &	MIB,
		MachineRegisterInfo &	MRI
	)