¶llvm::Register getFunctionLiveInPhysReg(
    llvm::MachineFunction& MF,
    const llvm::TargetInstrInfo& TII,
    llvm::MCRegister PhysReg,
    const llvm::TargetRegisterClass& RC,
    const llvm::DebugLoc& DL,
    llvm::LLT RegTy = llvm::LLT())

Description

Return a virtual register corresponding to the incoming argument register \p PhysReg. This register is expected to have class \p RC, and optional type \p RegTy. This assumes all references to the register will use the same type. If there is an existing live-in argument register, it will be returned. This will also ensure there is a valid copy

Declared at: llvm/include/llvm/CodeGen/GlobalISel/Utils.h:312

Parameters

llvm::MachineFunction& MF

const llvm::TargetInstrInfo& TII

llvm::MCRegister PhysReg

const llvm::TargetRegisterClass& RC

const llvm::DebugLoc& DL

llvm::LLT RegTy = llvm::LLT()