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

#include "llvm/CodeGen/RegisterPressure.h"

Collaboration diagram for llvm::RegPressureDelta:

Public Member Functions
	RegPressureDelta ()=default

bool	operator== (const RegPressureDelta &RHS) const

bool	operator!= (const RegPressureDelta &RHS) 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 242 of file RegisterPressure.h.

Constructor & Destructor Documentation

◆ RegPressureDelta()

llvm::RegPressureDelta::RegPressureDelta ( )

default

Member Function Documentation

◆ operator!=()

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

inline

Definition at line 253 of file RegisterPressure.h.

References llvm::operator==().

◆ operator==()

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

inline

Definition at line 249 of file RegisterPressure.h.

References CriticalMax, CurrentMax, and Excess.

Member Data Documentation

◆ CriticalMax

PressureChange llvm::RegPressureDelta::CriticalMax

Definition at line 244 of file RegisterPressure.h.

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

◆ CurrentMax

PressureChange llvm::RegPressureDelta::CurrentMax

Definition at line 245 of file RegisterPressure.h.

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

◆ Excess

PressureChange llvm::RegPressureDelta::Excess

Definition at line 243 of file RegisterPressure.h.

Referenced by computeExcessPressureDelta(), computeLiveOuts(), llvm::RegPressureTracker::getMaxUpwardPressureDelta(), llvm::RegPressureTracker::getUpwardPressureDelta(), llvm::GenericScheduler::initCandidate(), llvm::GCNMaxOccupancySchedStrategy::initialize(), operator==(), llvm::ConvergingVLIWScheduler::SchedulingCost(), llvm::GenericSchedulerBase::traceCandidate(), and llvm::GenericScheduler::tryCandidate().

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

include/llvm/CodeGen/RegisterPressure.h

Public Member Functions

Public Attributes