llvm::RegPressureDelta Struct Reference

Store the effects of a change in pressure on things that MI scheduler cares about. More...

#include "llvm/CodeGen/RegisterPressure.h"

Public Member Functions
	RegPressureDelta ()=default
bool	operator== (const RegPressureDelta &RHS) const
bool	operator!= (const RegPressureDelta &RHS) const
void	dump () const

Public Attributes
PressureChange	Excess
PressureChange	CriticalMax
PressureChange	CurrentMax

Detailed Description

Store the effects of a change in pressure on things that MI scheduler cares about.

Excess records the value of the largest difference in register units beyond the target's pressure limits across the affected pressure sets, where largest is defined as the absolute value of the difference. Negative ExcessUnits indicates a reduction in pressure that had already exceeded the target's limits.

CriticalMax records the largest increase in the tracker's max pressure that exceeds the critical limit for some pressure set determined by the client.

CurrentMax records the largest increase in the tracker's max pressure that exceeds the current limit for some pressure set determined by the client.

Definition at line 240 of file RegisterPressure.h.

Constructor & Destructor Documentation

RegPressureDelta()

llvm::RegPressureDelta::RegPressureDelta ( )

default

Member Function Documentation

dump()

void RegPressureDelta::dump

(

)

const

Definition at line 143 of file RegisterPressure.cpp.

References CriticalMax, CurrentMax, llvm::dbgs(), llvm::PressureChange::dump(), and Excess.

operator!=()

bool llvm::RegPressureDelta::operator!= ( const RegPressureDelta &  RHS ) const

inline

Definition at line 251 of file RegisterPressure.h.

References operator==(), and RHS.

operator==()

bool llvm::RegPressureDelta::operator== ( const RegPressureDelta &  RHS ) const

inline

Definition at line 247 of file RegisterPressure.h.

References CriticalMax, CurrentMax, Excess, and RHS.

Referenced by operator!=().

Member Data Documentation

CriticalMax

PressureChange llvm::RegPressureDelta::CriticalMax

Definition at line 242 of file RegisterPressure.h.

Referenced by computeMaxPressureDelta(), dump(), llvm::RegPressureTracker::getMaxDownwardPressureDelta(), llvm::RegPressureTracker::getMaxUpwardPressureDelta(), llvm::RegPressureTracker::getUpwardPressureDelta(), llvm::GCNSchedStrategy::initCandidate(), operator==(), llvm::ConvergingVLIWScheduler::SchedulingCost(), llvm::GenericSchedulerBase::traceCandidate(), llvm::GenericScheduler::tryCandidate(), llvm::GCNMaxILPSchedStrategy::tryCandidate(), and llvm::PPCPreRASchedStrategy::tryCandidate().

CurrentMax

PressureChange llvm::RegPressureDelta::CurrentMax

Definition at line 243 of file RegisterPressure.h.

Referenced by computeMaxPressureDelta(), dump(), llvm::RegPressureTracker::getMaxDownwardPressureDelta(), llvm::RegPressureTracker::getMaxUpwardPressureDelta(), llvm::RegPressureTracker::getUpwardPressureDelta(), operator==(), llvm::ConvergingVLIWScheduler::SchedulingCost(), llvm::GenericSchedulerBase::traceCandidate(), llvm::GenericScheduler::tryCandidate(), llvm::GCNMaxILPSchedStrategy::tryCandidate(), and llvm::PPCPreRASchedStrategy::tryCandidate().

Excess

PressureChange llvm::RegPressureDelta::Excess

Definition at line 241 of file RegisterPressure.h.

Referenced by computeExcessPressureDelta(), dump(), llvm::RegPressureTracker::getMaxUpwardPressureDelta(), llvm::RegPressureTracker::getUpwardPressureDelta(), llvm::GCNSchedStrategy::initCandidate(), llvm::GenericScheduler::initCandidate(), operator==(), llvm::ConvergingVLIWScheduler::SchedulingCost(), llvm::GenericSchedulerBase::traceCandidate(), llvm::GenericScheduler::tryCandidate(), llvm::GCNMaxILPSchedStrategy::tryCandidate(), and llvm::PPCPreRASchedStrategy::tryCandidate().

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

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