llvm::PhysRegInfo Struct Reference

Information about how a physical register Reg is used by a set of operands. More...

#include "llvm/CodeGen/MachineInstrBundle.h"

Public Attributes
bool	Clobbered
	There is a regmask operand indicating Reg is clobbered.
bool	Defined
	Reg or one of its aliases is defined.
bool	FullyDefined
	Reg or a super-register is defined.
bool	Read
	Reg or one of its aliases is read.
bool	FullyRead
	Reg or a super-register is read. The full register is read.
bool	DeadDef
	Either:
bool	PartialDeadDef
	Reg is Defined and all defs of reg or an overlapping register are dead.
bool	Killed
	There is a use operand of reg or a super-register with kill flag set.

Detailed Description

Information about how a physical register Reg is used by a set of operands.

Definition at line 253 of file MachineInstrBundle.h.

Member Data Documentation

Clobbered

bool llvm::PhysRegInfo::Clobbered

There is a regmask operand indicating Reg is clobbered.

See also

MachineOperand::CreateRegMask().

Definition at line 256 of file MachineInstrBundle.h.

Referenced by llvm::AnalyzePhysRegInBundle().

DeadDef

bool llvm::PhysRegInfo::DeadDef

Either:

• Reg is FullyDefined and all defs of reg or an overlapping register are dead, or
• Reg is completely dead because "defined" by a clobber.

Definition at line 275 of file MachineInstrBundle.h.

Referenced by llvm::AnalyzePhysRegInBundle().

Defined

bool llvm::PhysRegInfo::Defined

Reg or one of its aliases is defined.

The definition may only cover parts of the register.

Definition at line 260 of file MachineInstrBundle.h.

Referenced by llvm::AnalyzePhysRegInBundle().

FullyDefined

bool llvm::PhysRegInfo::FullyDefined

Reg or a super-register is defined.

The definition covers the full register.

Definition at line 263 of file MachineInstrBundle.h.

Referenced by llvm::AnalyzePhysRegInBundle().

FullyRead

bool llvm::PhysRegInfo::FullyRead

Reg or a super-register is read. The full register is read.

Definition at line 269 of file MachineInstrBundle.h.

Referenced by llvm::AnalyzePhysRegInBundle().

Killed

bool llvm::PhysRegInfo::Killed

There is a use operand of reg or a super-register with kill flag set.

Definition at line 282 of file MachineInstrBundle.h.

Referenced by llvm::AnalyzePhysRegInBundle().

PartialDeadDef

bool llvm::PhysRegInfo::PartialDeadDef

Reg is Defined and all defs of reg or an overlapping register are dead.

Definition at line 279 of file MachineInstrBundle.h.

Referenced by llvm::AnalyzePhysRegInBundle().

Read

bool llvm::PhysRegInfo::Read

Reg or one of its aliases is read.

The register may only be read partially.

Definition at line 267 of file MachineInstrBundle.h.

Referenced by llvm::AnalyzePhysRegInBundle().

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The documentation for this struct was generated from the following file:

• include/llvm/CodeGen/MachineInstrBundle.h