llvm::VNInfo Struct Reference

#include <LiveInterval.h>

Collaboration diagram for llvm::VNInfo:

[legend]

List of all members.

Public Member Functions
	VNInfo ()
	VNInfo (unsigned i, unsigned d, MachineInstr *c)
Public Attributes
unsigned	id
unsigned	def
MachineInstr *	copy
bool	hasPHIKill: 1
bool	redefByEC: 1
SmallVector< unsigned, 4 >	kills

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Detailed Description

VNInfo - If the value number definition is undefined (e.g. phi merge point), it contains ~0u,x. If the value number is not in use, it contains ~1u,x to indicate that the value # is not used. def - Instruction # of the definition.

• or reg # of the definition if it's a stack slot liveinterval. copy - Copy iff val# is defined by a copy; zero otherwise. hasPHIKill - One or more of the kills are PHI nodes. redefByEC - Re-defined by early clobber somewhere during the live range. kills - Instruction # of the kills.

Definition at line 43 of file LiveInterval.h.

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Constructor & Destructor Documentation

llvm::VNInfo::VNInfo

(

)

[inline]

Definition at line 50 of file LiveInterval.h.

llvm::VNInfo::VNInfo	(	unsigned	i,
		unsigned	d,
		MachineInstr *	c
	)			[inline]

Definition at line 52 of file LiveInterval.h.

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Member Data Documentation

unsigned llvm::VNInfo::id

Definition at line 44 of file LiveInterval.h.

Referenced by llvm::LiveIntervals::addIntervalsForSpills(), ComputeUltimateVN(), llvm::LiveInterval::Copy(), llvm::LiveInterval::join(), llvm::LiveInterval::MergeValueInAsValue(), llvm::LiveInterval::MergeValueNumberInto(), llvm::operator<<(), and llvm::LiveInterval::removeValNo().

unsigned llvm::VNInfo::def

Definition at line 45 of file LiveInterval.h.

Referenced by llvm::LiveIntervals::addIntervalsForSpills(), llvm::LiveIntervals::computeNumbering(), llvm::LiveInterval::copyValNumInfo(), llvm::LiveIntervals::isReMaterializable(), llvm::LiveInterval::MergeValueInAsValue(), llvm::LiveInterval::MergeValueNumberInto(), llvm::LiveInterval::print(), llvm::LiveInterval::removeRange(), and llvm::LiveInterval::removeValNo().

MachineInstr* llvm::VNInfo::copy

Definition at line 46 of file LiveInterval.h.

Referenced by llvm::LiveInterval::copyValNumInfo(), and llvm::LiveIntervals::getVNInfoSourceReg().

bool llvm::VNInfo::hasPHIKill

Definition at line 47 of file LiveInterval.h.

Referenced by llvm::LiveIntervals::addIntervalsForSpills(), llvm::LiveIntervals::addLiveRangeToEndOfBlock(), llvm::LiveInterval::copyValNumInfo(), and llvm::LiveInterval::print().

bool llvm::VNInfo::redefByEC

Definition at line 48 of file LiveInterval.h.

Referenced by llvm::LiveInterval::copyValNumInfo().

SmallVector<unsigned, 4> llvm::VNInfo::kills

Definition at line 49 of file LiveInterval.h.

Referenced by llvm::LiveInterval::addKill(), llvm::LiveInterval::addKills(), llvm::LiveIntervals::addLiveRangeToEndOfBlock(), llvm::LiveIntervals::computeNumbering(), llvm::LiveInterval::copyValNumInfo(), llvm::LiveInterval::isKill(), llvm::LiveInterval::print(), llvm::LiveInterval::removeKill(), and llvm::LiveInterval::removeKills().

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

• LiveInterval.h