struct VirtRegInfo

Declaration

struct VirtRegInfo { /* full declaration omitted */ };

Description

VirtRegInfo - Information about a virtual register used by a set of operands.

Declared at: llvm/include/llvm/CodeGen/MachineInstrBundle.h:218

Member Variables

public bool Reads

Reads - One of the operands read the virtual register. This does not include undef or internal use operands, see MO::readsReg().

public bool Writes

Writes - One of the operands writes the virtual register.

public bool Tied

Tied - Uses and defs must use the same register. This can be because of a two-address constraint, or there may be a partial redefinition of a sub-register.