llvm::LiveRange::Segment Struct Reference

This represents a simple continuous liveness interval for a value. More...

#include "llvm/CodeGen/LiveInterval.h"

Public Member Functions
	Segment ()=default
	Segment (SlotIndex S, SlotIndex E, VNInfo *V)
bool	contains (SlotIndex I) const
	Return true if the index is covered by this segment.
bool	containsInterval (SlotIndex S, SlotIndex E) const
	Return true if the given interval, [S, E), is covered by this segment.
bool	operator< (const Segment &Other) const
bool	operator== (const Segment &Other) const
bool	operator!= (const Segment &Other) const
LLVM_ABI void	dump () const

Public Attributes
SlotIndex	start
SlotIndex	end
VNInfo *	valno = nullptr

Detailed Description

This represents a simple continuous liveness interval for a value.

The start point is inclusive, the end point exclusive. These intervals are rendered as [start,end).

Definition at line 163 of file LiveInterval.h.

Constructor & Destructor Documentation

Segment() [1/2]

llvm::LiveRange::Segment::Segment ( )

default

Referenced by operator!=(), operator<(), and operator==().

Segment() [2/2]

llvm::LiveRange::Segment::Segment ( SlotIndex S, SlotIndex E, VNInfo * V )

inline

Definition at line 171 of file LiveInterval.h.

References assert(), E(), end, start, and valno.

Member Function Documentation

contains()

bool llvm::LiveRange::Segment::contains ( SlotIndex I ) const

inline

Return true if the index is covered by this segment.

Definition at line 177 of file LiveInterval.h.

References end, I, and start.

containsInterval()

bool llvm::LiveRange::Segment::containsInterval ( SlotIndex S, SlotIndex E ) const

inline

Return true if the given interval, [S, E), is covered by this segment.

Definition at line 182 of file LiveInterval.h.

References assert(), E(), end, and start.

dump()

LLVM_DUMP_METHOD void LiveRange::Segment::dump

(

)

const

Definition at line 994 of file LiveInterval.cpp.

References llvm::dbgs(), and LLVM_DUMP_METHOD.

operator!=()

bool llvm::LiveRange::Segment::operator!= ( const Segment & Other ) const

inline

Definition at line 194 of file LiveInterval.h.

References llvm::Other, and Segment().

operator<()

bool llvm::LiveRange::Segment::operator< ( const Segment & Other ) const

inline

Definition at line 187 of file LiveInterval.h.

References end, llvm::Other, Segment(), and start.

operator==()

bool llvm::LiveRange::Segment::operator== ( const Segment & Other ) const

inline

Definition at line 190 of file LiveInterval.h.

References end, llvm::Other, Segment(), and start.

Member Data Documentation

end

SlotIndex llvm::LiveRange::Segment::end

Definition at line 165 of file LiveInterval.h.

Referenced by llvm::LiveRangeUpdater::add(), llvm::LiveIntervals::addKillFlags(), addSegmentsWithValNo(), llvm::LiveRange::assign(), llvm::X86InstrInfo::classifyLEAReg(), contains(), containsInterval(), llvm::RISCVInstrInfo::convertToThreeAddress(), llvm::RegPressureTracker::getLiveThroughAt(), llvm::LiveRange::MergeSegmentsInAsValue(), llvm::LiveRange::MergeValueInAsValue(), operator<(), llvm::operator<<(), operator==(), removeDeadSegment(), llvm::LiveRange::removeSegment(), Segment(), and llvm::LiveIntervals::shrinkToUses().

start

SlotIndex llvm::LiveRange::Segment::start

Definition at line 164 of file LiveInterval.h.

Referenced by llvm::LiveRangeUpdater::add(), llvm::LiveIntervals::addKillFlags(), addSegmentsWithValNo(), llvm::LiveRange::append(), llvm::LiveRange::assign(), contains(), containsInterval(), llvm::RegPressureTracker::getLiveThroughAt(), llvm::LiveRange::MergeSegmentsInAsValue(), llvm::LiveRange::MergeValueInAsValue(), operator<(), llvm::operator<(), llvm::operator<(), llvm::operator<<(), operator==(), llvm::LiveRange::removeSegment(), and Segment().

valno

VNInfo* llvm::LiveRange::Segment::valno = nullptr

Definition at line 166 of file LiveInterval.h.

Referenced by llvm::LiveRangeUpdater::add(), addSegmentsWithValNo(), llvm::LiveRange::assign(), llvm::LiveRange::join(), llvm::LiveRange::MergeValueInAsValue(), llvm::operator<<(), llvm::LiveRange::removeValNo(), llvm::LiveRange::removeValNoIfDead(), and Segment().

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

• include/llvm/CodeGen/LiveInterval.h
• lib/CodeGen/LiveInterval.cpp