llvm::MachineFunction::DebugPHIRegallocPos Class Reference

Location of a PHI instruction that is also a debug-info variable value, for the duration of register allocation. More...

#include "llvm/CodeGen/MachineFunction.h"

Public Member Functions
	DebugPHIRegallocPos (MachineBasicBlock *MBB, Register Reg, unsigned SubReg)

Public Attributes
MachineBasicBlock *	MBB
	Block where this PHI was originally located.
Register	Reg
	VReg where the control-flow-merge happens.
unsigned	SubReg
	Optional subreg qualifier within Reg.

Detailed Description

Location of a PHI instruction that is also a debug-info variable value, for the duration of register allocation.

Loaded by the PHI-elimination pass, and emitted as DBG_PHI instructions during VirtRegRewriter, with maintenance applied by intermediate passes that edit registers (such as coalescing and the allocator passes).

Definition at line 613 of file MachineFunction.h.

Constructor & Destructor Documentation

DebugPHIRegallocPos()

llvm::MachineFunction::DebugPHIRegallocPos::DebugPHIRegallocPos ( MachineBasicBlock * MBB, Register Reg, unsigned SubReg )

inline

Definition at line 618 of file MachineFunction.h.

References MBB, Reg, and SubReg.

Member Data Documentation

MBB

MachineBasicBlock* llvm::MachineFunction::DebugPHIRegallocPos::MBB

Block where this PHI was originally located.

Definition at line 615 of file MachineFunction.h.

Referenced by DebugPHIRegallocPos().

Reg

Register llvm::MachineFunction::DebugPHIRegallocPos::Reg

VReg where the control-flow-merge happens.

Definition at line 616 of file MachineFunction.h.

Referenced by DebugPHIRegallocPos().

SubReg

unsigned llvm::MachineFunction::DebugPHIRegallocPos::SubReg

Optional subreg qualifier within Reg.

Definition at line 617 of file MachineFunction.h.

Referenced by DebugPHIRegallocPos().

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

• include/llvm/CodeGen/MachineFunction.h