RISCVInstructionSelector.cpp File Reference

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

#include "MCTargetDesc/RISCVMatInt.h"
#include "RISCVRegisterBankInfo.h"
#include "RISCVSubtarget.h"
#include "RISCVTargetMachine.h"
#include "llvm/CodeGen/GlobalISel/GIMatchTableExecutorImpl.h"
#include "llvm/CodeGen/GlobalISel/GenericMachineInstrs.h"
#include "llvm/CodeGen/GlobalISel/InstructionSelector.h"
#include "llvm/CodeGen/GlobalISel/MIPatternMatch.h"
#include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h"
#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/IR/IntrinsicsRISCV.h"
#include "llvm/Support/Debug.h"
#include "RISCVGenGlobalISel.inc"

Go to the source code of this file.

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

Macros
#define	DEBUG_TYPE   "riscv-isel"
#define	GET_GLOBALISEL_PREDICATE_BITSET
#define	GET_GLOBALISEL_PREDICATES_DECL
#define	GET_GLOBALISEL_TEMPORARIES_DECL
#define	GET_GLOBALISEL_IMPL
#define	GET_GLOBALISEL_PREDICATES_INIT
#define	GET_GLOBALISEL_TEMPORARIES_INIT

Functions
static void	getOperandsForBranch (Register CondReg, MachineRegisterInfo &MRI, RISCVCC::CondCode &CC, Register &LHS, Register &RHS)
static unsigned	getFCmpOpcode (CmpInst::Predicate Pred, unsigned Size)
static bool	legalizeFCmpPredicate (Register &LHS, Register &RHS, CmpInst::Predicate &Pred, bool &NeedInvert)
InstructionSelector *	llvm::createRISCVInstructionSelector (const RISCVTargetMachine &TM, RISCVSubtarget &Subtarget, RISCVRegisterBankInfo &RBI)

Detailed Description

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

Todo:

This should be generated by TableGen.

Definition in file RISCVInstructionSelector.cpp.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "riscv-isel"

Definition at line 27 of file RISCVInstructionSelector.cpp.

GET_GLOBALISEL_IMPL

#define GET_GLOBALISEL_IMPL

Definition at line 128 of file RISCVInstructionSelector.cpp.

GET_GLOBALISEL_PREDICATE_BITSET

#define GET_GLOBALISEL_PREDICATE_BITSET

Definition at line 32 of file RISCVInstructionSelector.cpp.

GET_GLOBALISEL_PREDICATES_DECL

#define GET_GLOBALISEL_PREDICATES_DECL

Definition at line 117 of file RISCVInstructionSelector.cpp.

GET_GLOBALISEL_PREDICATES_INIT

#define GET_GLOBALISEL_PREDICATES_INIT

GET_GLOBALISEL_TEMPORARIES_DECL

#define GET_GLOBALISEL_TEMPORARIES_DECL

Definition at line 121 of file RISCVInstructionSelector.cpp.

GET_GLOBALISEL_TEMPORARIES_INIT

#define GET_GLOBALISEL_TEMPORARIES_INIT

Function Documentation

getFCmpOpcode()

static unsigned getFCmpOpcode ( CmpInst::Predicate  Pred, unsigned  Size  )

static

Definition at line 955 of file RISCVInstructionSelector.cpp.

References assert(), llvm::CmpInst::FCMP_OEQ, llvm::CmpInst::FCMP_OLE, llvm::CmpInst::FCMP_OLT, llvm_unreachable, and Size.

getOperandsForBranch()

static void getOperandsForBranch ( Register  CondReg, MachineRegisterInfo &  MRI, RISCVCC::CondCode &  CC, Register &  LHS, Register &  RHS  )

static

Definition at line 359 of file RISCVInstructionSelector.cpp.

References llvm::CmpInst::BAD_ICMP_PREDICATE, CC, llvm::RISCVCC::COND_GE, llvm::RISCVCC::COND_NE, llvm::getIConstantVRegSExtVal(), llvm::CmpInst::getSwappedPredicate(), LHS, llvm_unreachable, llvm::MIPatternMatch::m_GICmp(), llvm::MIPatternMatch::m_Pred(), llvm::MIPatternMatch::m_Reg(), llvm::MIPatternMatch::mi_match(), MRI, RHS, and std::swap().

legalizeFCmpPredicate()

static bool legalizeFCmpPredicate ( Register &  LHS, Register &  RHS, CmpInst::Predicate &  Pred, bool &  NeedInvert  )

static

Definition at line 971 of file RISCVInstructionSelector.cpp.

References assert(), llvm::CmpInst::FCMP_OEQ, llvm::CmpInst::FCMP_OLE, llvm::CmpInst::FCMP_OLT, llvm::CmpInst::getInversePredicate(), llvm::CmpInst::getSwappedPredicate(), LHS, RHS, and std::swap().