llvm::MachineOperand::substVirtReg

Substitute the current register with the virtual subregister Reg:SubIdx.

Synopsis

Declared in <llvm/CodeGen/MachineOperand.h>

void
substVirtReg(
    Register Reg,
    unsigned int SubIdx,
    TargetRegisterInfo const& TRI);

Description

Take any existing SubReg index into account, using TargetRegisterInfo to compose the subreg indices if necessary. Reg must be a virtual register, SubIdx can be 0.

Parameters

Name

Description

Reg

Virtual register to substitute.

SubIdx

Subregister index to compose with any existing one.

TRI

Target register info used to compose subregister indices.

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