llvm::GCNRPTracker Class Reference

#include "Target/AMDGPU/GCNRegPressure.h"

Inheritance diagram for llvm::GCNRPTracker:

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< VRegMaskOrUnit > 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 260 of file GCNRegPressure.h.

Member Typedef Documentation

LiveRegSet

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

Definition at line 262 of file GCNRegPressure.h.

Constructor & Destructor Documentation

GCNRPTracker()

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

inlineprotected

Definition at line 271 of file GCNRegPressure.h.

References LIS.

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

Member Function Documentation

bumpDeadDefs()

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

protected

Mostly copy/paste from CodeGen/RegisterPressure.cpp.

clearMaxPressure()

void llvm::GCNRPTracker::clearMaxPressure ( )

inline

Definition at line 288 of file GCNRegPressure.h.

References MaxPressure.

getLastTrackedMI()

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

inline

Definition at line 286 of file GCNRegPressure.h.

References LastTrackedMI.

getLastUsedLanes()

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

protected

Mostly copy/paste from CodeGen/RegisterPressure.cpp.

Definition at line 500 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 285 of file GCNRegPressure.h.

References LiveRegs.

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

getPressure()

GCNRegPressure llvm::GCNRPTracker::getPressure ( ) const

inline

Definition at line 290 of file GCNRegPressure.h.

References CurPressure.

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

moveLiveRegs()

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

inline

Definition at line 292 of file GCNRegPressure.h.

References LiveRegs.

reset() [1/2]

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

protected

Definition at line 475 of file GCNRegPressure.cpp.

References 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 491 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 267 of file GCNRegPressure.h.

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

LastTrackedMI

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

protected

Definition at line 268 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 265 of file GCNRegPressure.h.

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

LiveRegs

LiveRegSet llvm::GCNRPTracker::LiveRegs

protected

Definition at line 266 of file GCNRegPressure.h.

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

MaxPressure

GCNRegPressure llvm::GCNRPTracker::MaxPressure

protected

Definition at line 267 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(), reset(), and llvm::GCNUpwardRPTracker::resetMaxPressure().

MRI

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

mutableprotected

Definition at line 269 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(), reset(), llvm::GCNUpwardRPTracker::reset(), and llvm::GCNUpwardRPTracker::reset().

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

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