RISCVInstructionSelector.cpp File Reference (original) (raw)

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

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, RISCVCC::CondCode &CC, Register &LHS, Register &RHS, MachineRegisterInfo &MRI)
static unsigned	selectZalasrLoadStoreOp (unsigned GenericOpc, unsigned OpSize)
	Select the RISC-V Zalasr opcode for the G_LOAD or G_STORE operation GenericOpc, appropriate for the GPR register bank and of memory access size OpSize.
static unsigned	selectRegImmLoadStoreOp (unsigned GenericOpc, unsigned OpSize)
	Select the RISC-V regimm opcode for the G_LOAD or G_STORE operation GenericOpc, appropriate for the GPR register bank and of memory access size OpSize.
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, const RISCVSubtarget &Subtarget, const RISCVRegisterBankInfo &RBI)

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

Todo

This should be generated by TableGen.

Definition in file RISCVInstructionSelector.cpp.

◆ DEBUG_TYPE

#define DEBUG_TYPE "riscv-isel"

◆ GET_GLOBALISEL_IMPL

#define GET_GLOBALISEL_IMPL

◆ GET_GLOBALISEL_PREDICATE_BITSET

#define GET_GLOBALISEL_PREDICATE_BITSET

◆ GET_GLOBALISEL_PREDICATES_DECL

#define GET_GLOBALISEL_PREDICATES_DECL

◆ GET_GLOBALISEL_PREDICATES_INIT

#define GET_GLOBALISEL_PREDICATES_INIT

◆ GET_GLOBALISEL_TEMPORARIES_DECL

#define GET_GLOBALISEL_TEMPORARIES_DECL

◆ GET_GLOBALISEL_TEMPORARIES_INIT

#define GET_GLOBALISEL_TEMPORARIES_INIT

◆ getFCmpOpcode()

◆ getOperandsForBranch()

Definition at line 622 of file RISCVInstructionSelector.cpp.

References llvm::CmpInst::BAD_ICMP_PREDICATE, llvm::RISCVCC::COND_GE, llvm::RISCVCC::COND_NE, llvm::getIConstantVRegSExtVal(), llvm::CmpInst::getSwappedPredicate(), llvm::CmpInst::ICMP_EQ, llvm::CmpInst::ICMP_NE, llvm::CmpInst::ICMP_SGE, llvm::CmpInst::ICMP_SGT, llvm::CmpInst::ICMP_SLE, llvm::CmpInst::ICMP_SLT, llvm::CmpInst::ICMP_UGE, llvm::CmpInst::ICMP_UGT, llvm::CmpInst::ICMP_ULE, llvm::CmpInst::ICMP_ULT, 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()

◆ selectRegImmLoadStoreOp()

Select the RISC-V regimm opcode for the G_LOAD or G_STORE operation GenericOpc, appropriate for the GPR register bank and of memory access size OpSize.

Returns

GenericOpc if the combination is unsupported.

Definition at line 708 of file RISCVInstructionSelector.cpp.

◆ selectZalasrLoadStoreOp()

Select the RISC-V Zalasr opcode for the G_LOAD or G_STORE operation GenericOpc, appropriate for the GPR register bank and of memory access size OpSize.

Definition at line 689 of file RISCVInstructionSelector.cpp.

References llvm_unreachable.