llvm::PressureDiff Class Reference

#include <RegisterPressure.h>

Public Types
typedef PressureChange *	iterator
typedef const PressureChange *	const_iterator

Public Member Functions
iterator	begin ()
iterator	end ()
const_iterator	begin () const
const_iterator	end () const
void	addPressureChange (unsigned RegUnit, bool IsDec, const MachineRegisterInfo *MRI)
	Add a change in pressure to the pressure diff of a given instruction. More...

Detailed Description

List of PressureChanges in order of increasing, unique PSetID.

Use a small fixed number, because we can fit more PressureChanges in an empty SmallVector than ever need to be tracked per register class. If more PSets are affected, then we only track the most constrained.

Definition at line 136 of file RegisterPressure.h.

Member Typedef Documentation

typedef const PressureChange* llvm::PressureDiff::const_iterator

Definition at line 145 of file RegisterPressure.h.

typedef PressureChange* llvm::PressureDiff::iterator

Definition at line 144 of file RegisterPressure.h.

Member Function Documentation

void PressureDiff::addPressureChange	(	unsigned	RegUnit,
		bool	IsDec,
		const MachineRegisterInfo *	MRI
	)

Add a change in pressure to the pressure diff of a given instruction.

Definition at line 384 of file RegisterPressure.cpp.

References begin(), end(), llvm::MachineRegisterInfo::getPressureSets(), llvm::PressureChange::getPSet(), llvm::PressureChange::getUnitInc(), llvm::PSetIterator::getWeight(), I, llvm::PressureChange::isValid(), llvm::PSetIterator::isValid(), llvm::PressureChange::setUnitInc(), and std::swap().

Referenced by collectPDiff(), and llvm::ScheduleDAGMI::updatePressureDiffs().

iterator llvm::PressureDiff::begin ( )

inline

Definition at line 146 of file RegisterPressure.h.

Referenced by addPressureChange(), collectPDiff(), llvm::RegPressureTracker::getUpwardPressureDelta(), and llvm::ScheduleDAGMI::updateScheduledPressure().

const_iterator llvm::PressureDiff::begin ( ) const

inline

Definition at line 148 of file RegisterPressure.h.

iterator llvm::PressureDiff::end ( )

inline

Definition at line 147 of file RegisterPressure.h.

Referenced by addPressureChange(), llvm::RegPressureTracker::getUpwardPressureDelta(), and llvm::ScheduleDAGMI::updateScheduledPressure().

const_iterator llvm::PressureDiff::end ( ) const

inline

Definition at line 149 of file RegisterPressure.h.

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

• RegisterPressure.h
• RegisterPressure.cpp