LLVM: llvm::GCNRPTracker Class Reference

LLVM 20.0.0git

#include "Target/AMDGPU/GCNRegPressure.h"

Inheritance diagram for llvm::GCNRPTracker:

Inheritance graph

[legend]

Public Types
using	LiveRegSet = DenseMap< unsigned, LaneBitmask >

Public Member Functions
void	reset (const MachineRegisterInfo &MRI_, const LiveRegSet &LiveRegs_)

const decltype(LiveRegs) &	getLiveRegs () const

const MachineInstr *	getLastTrackedMI () const

void	clearMaxPressure ()

GCNRegPressure	getPressure () const

decltype(LiveRegs)	moveLiveRegs ()

Protected Member Functions
	GCNRPTracker (const LiveIntervals &LIS_)

void	reset (const MachineInstr &MI, const LiveRegSet *LiveRegsCopy, bool After)

void	bumpDeadDefs (ArrayRef< RegisterMaskPair > DeadDefs)
	Mostly copy/paste from CodeGen/RegisterPressure.cpp.

LaneBitmask	getLastUsedLanes (Register RegUnit, SlotIndex Pos) const
	Mostly copy/paste from CodeGen/RegisterPressure.cpp.

Protected Attributes
const LiveIntervals &	LIS

LiveRegSet	LiveRegs

GCNRegPressure	CurPressure

GCNRegPressure	MaxPressure

const MachineInstr *	LastTrackedMI = nullptr

const MachineRegisterInfo *	MRI = nullptr

Detailed Description

Definition at line 156 of file GCNRegPressure.h.

Member Typedef Documentation

◆ LiveRegSet

using llvm::GCNRPTracker::LiveRegSet = DenseMap<unsigned, LaneBitmask>

Definition at line 158 of file GCNRegPressure.h.

Constructor & Destructor Documentation

◆ GCNRPTracker()

llvm::GCNRPTracker::GCNRPTracker ( const LiveIntervals & LIS_ )

inlineprotected

Definition at line 167 of file GCNRegPressure.h.

Member Function Documentation

◆ bumpDeadDefs()

void llvm::GCNRPTracker::bumpDeadDefs ( ArrayRef< RegisterMaskPair > DeadDefs )

protected

Mostly copy/paste from CodeGen/RegisterPressure.cpp.

◆ clearMaxPressure()

void llvm::GCNRPTracker::clearMaxPressure ( )

inline

Definition at line 184 of file GCNRegPressure.h.

References llvm::GCNRegPressure::clear(), and MaxPressure.

◆ getLastTrackedMI()

const MachineInstr * llvm::GCNRPTracker::getLastTrackedMI ( ) const

inline

Definition at line 182 of file GCNRegPressure.h.

References LastTrackedMI.

Referenced by llvm::GCNIterativeScheduler::getRegionPressure().

◆ getLastUsedLanes()

LaneBitmask GCNRPTracker::getLastUsedLanes	(	Register	RegUnit,
		SlotIndex	Pos
	)		const

protected

Mostly copy/paste from CodeGen/RegisterPressure.cpp.

Definition at line 423 of file GCNRegPressure.cpp.

References llvm::SlotIndex::getBaseIndex(), getLanesWithProperty(), llvm::LaneBitmask::getNone(), LIS, and MRI.

Referenced by llvm::GCNDownwardRPTracker::bumpDownwardPressure().

◆ getLiveRegs()

const decltype(LiveRegs) & llvm::GCNRPTracker::getLiveRegs ( ) const

inline

Definition at line 181 of file GCNRegPressure.h.

References LiveRegs.

Referenced by llvm::GCNRegPressurePrinter::runOnMachineFunction().

◆ getPressure()

GCNRegPressure llvm::GCNRPTracker::getPressure ( ) const

inline

Definition at line 186 of file GCNRegPressure.h.

References CurPressure.

Referenced by getRegisterPressures(), and llvm::GCNRegPressurePrinter::runOnMachineFunction().

◆ moveLiveRegs()

decltype(LiveRegs) llvm::GCNRPTracker::moveLiveRegs ( )

inline

Definition at line 188 of file GCNRegPressure.h.

References LiveRegs.

◆ reset() [1/2]

void GCNRPTracker::reset	(	const MachineInstr &	MI,
		const LiveRegSet *	LiveRegsCopy,
		bool	After
	)

protected

Definition at line 398 of file GCNRegPressure.cpp.

References After, CurPressure, llvm::getLiveRegsAfter(), llvm::getLiveRegsBefore(), llvm::MachineFunction::getRegInfo(), llvm::getRegPressure(), LIS, LiveRegs, MaxPressure, MI, and MRI.

Referenced by llvm::GCNDownwardRPTracker::reset(), and llvm::GCNUpwardRPTracker::reset().

◆ reset() [2/2]

void GCNRPTracker::reset	(	const MachineRegisterInfo &	MRI_,
		const LiveRegSet &	LiveRegs_
	)

Definition at line 414 of file GCNRegPressure.cpp.

References CurPressure, llvm::getRegPressure(), LastTrackedMI, LiveRegs, MaxPressure, and MRI.

Member Data Documentation

◆ CurPressure

GCNRegPressure llvm::GCNRPTracker::CurPressure

protected

Definition at line 163 of file GCNRegPressure.h.

Referenced by llvm::GCNDownwardRPTracker::advanceBeforeNext(), llvm::GCNDownwardRPTracker::advanceToNext(), llvm::GCNDownwardRPTracker::bumpDownwardPressure(), getPressure(), llvm::GCNUpwardRPTracker::isValid(), llvm::GCNUpwardRPTracker::recede(), reset(), and llvm::GCNUpwardRPTracker::resetMaxPressure().

◆ LastTrackedMI

const MachineInstr* llvm::GCNRPTracker::LastTrackedMI = nullptr

protected

Definition at line 164 of file GCNRegPressure.h.

Referenced by llvm::GCNDownwardRPTracker::advanceBeforeNext(), llvm::GCNDownwardRPTracker::advanceToNext(), llvm::GCNDownwardRPTracker::bumpDownwardPressure(), getLastTrackedMI(), llvm::GCNUpwardRPTracker::recede(), llvm::GCNDownwardRPTracker::reset(), and reset().

◆ LIS

const LiveIntervals& llvm::GCNRPTracker::LIS

protected

Definition at line 161 of file GCNRegPressure.h.

Referenced by llvm::GCNDownwardRPTracker::advanceBeforeNext(), llvm::GCNDownwardRPTracker::bumpDownwardPressure(), getLastUsedLanes(), llvm::GCNUpwardRPTracker::isValid(), llvm::GCNUpwardRPTracker::recede(), reset(), and llvm::GCNUpwardRPTracker::reset().

◆ LiveRegs

LiveRegSet llvm::GCNRPTracker::LiveRegs

protected

Definition at line 162 of file GCNRegPressure.h.

Referenced by llvm::GCNDownwardRPTracker::advanceBeforeNext(), llvm::GCNDownwardRPTracker::advanceToNext(), llvm::GCNDownwardRPTracker::bumpDownwardPressure(), getLiveRegs(), llvm::GCNUpwardRPTracker::isValid(), moveLiveRegs(), llvm::GCNUpwardRPTracker::recede(), and reset().

◆ MaxPressure

GCNRegPressure llvm::GCNRPTracker::MaxPressure

protected

Definition at line 163 of file GCNRegPressure.h.

Referenced by llvm::GCNDownwardRPTracker::advanceBeforeNext(), llvm::GCNDownwardRPTracker::advanceToNext(), clearMaxPressure(), llvm::GCNUpwardRPTracker::getMaxPressure(), llvm::GCNUpwardRPTracker::getMaxPressureAndReset(), llvm::GCNDownwardRPTracker::moveMaxPressure(), llvm::GCNUpwardRPTracker::recede(), reset(), and llvm::GCNUpwardRPTracker::resetMaxPressure().

◆ MRI

const MachineRegisterInfo* llvm::GCNRPTracker::MRI = nullptr

mutableprotected

Definition at line 165 of file GCNRegPressure.h.

Referenced by llvm::GCNDownwardRPTracker::advanceBeforeNext(), llvm::GCNDownwardRPTracker::advanceToNext(), llvm::GCNDownwardRPTracker::bumpDownwardPressure(), getLastUsedLanes(), llvm::GCNUpwardRPTracker::isValid(), llvm::GCNUpwardRPTracker::recede(), llvm::GCNDownwardRPTracker::reset(), reset(), and llvm::GCNUpwardRPTracker::reset().

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

lib/Target/AMDGPU/GCNRegPressure.h
lib/Target/AMDGPU/GCNRegPressure.cpp