#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)
	Resets tracker with the provided `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, bool After)
	Resets tracker before or `After` the provided `MI`, which can be a debug instruction.
void	reset (const MachineBasicBlock &MBB, bool End)
	Resets tracker at the start or `End` of the `MBB`.
void	reset (const MachineRegisterInfo &MRI, SlotIndex SI)
	Resets tracker at the specified slot index `SI`.
void	bumpDeadDefs (ArrayRef< VRegMaskOrUnit > DeadDefs)
	Mostly copy/paste from CodeGen/RegisterPressure.cpp.
LaneBitmask	getLastUsedLanes (Register Reg, 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 321 of file GCNRegPressure.h.

Member Typedef Documentation

◆ LiveRegSet

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

Definition at line 323 of file GCNRegPressure.h.

Constructor & Destructor Documentation

◆ GCNRPTracker()

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

inlineprotected

Definition at line 332 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.

References LiveRegs, MRI, and Reg.

◆ clearMaxPressure()

void llvm::GCNRPTracker::clearMaxPressure ( )

inline

Definition at line 357 of file GCNRegPressure.h.

References MaxPressure.

◆ getLastTrackedMI()

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

inline

Definition at line 355 of file GCNRegPressure.h.

References LastTrackedMI.

◆ getLastUsedLanes()

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

protected

Mostly copy/paste from CodeGen/RegisterPressure.cpp.

Definition at line 575 of file GCNRegPressure.cpp.

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

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

◆ getLiveRegs()

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

inline

Definition at line 354 of file GCNRegPressure.h.

References LiveRegs.

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

◆ getPressure()

GCNRegPressure llvm::GCNRPTracker::getPressure ( ) const

inline

Definition at line 359 of file GCNRegPressure.h.

References CurPressure.

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

◆ moveLiveRegs()

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

inline

Definition at line 361 of file GCNRegPressure.h.

References LiveRegs.

◆ reset() [1/4]

void GCNRPTracker::reset	(	const MachineBasicBlock &	MBB,
		bool	End )

protected

Resets tracker at the start or End of the MBB.

Definition at line 552 of file GCNRegPressure.cpp.

References LIS, MBB, and reset().

◆ reset() [2/4]

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

protected

Resets tracker before or After the provided MI, which can be a debug instruction.

Definition at line 524 of file GCNRegPressure.cpp.

References LIS, MI, MRI, reset(), and llvm::skipDebugInstructionsForward().

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

◆ reset() [3/4]

void GCNRPTracker::reset	(	const MachineRegisterInfo &	MRI,
		const LiveRegSet &	LiveRegs )

Resets tracker with the provided LiveRegs.

Definition at line 565 of file GCNRegPressure.cpp.

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

◆ reset() [4/4]

void GCNRPTracker::reset	(	const MachineRegisterInfo &	MRI,
		SlotIndex	SI )

protected

Resets tracker at the specified slot index SI.

Definition at line 558 of file GCNRegPressure.cpp.

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

Member Data Documentation

◆ CurPressure

GCNRegPressure llvm::GCNRPTracker::CurPressure

protected

Definition at line 328 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 329 of file GCNRegPressure.h.

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

◆ LIS

const LiveIntervals& llvm::GCNRPTracker::LIS

protected

Definition at line 326 of file GCNRegPressure.h.

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

◆ LiveRegs

LiveRegSet llvm::GCNRPTracker::LiveRegs

protected

Definition at line 327 of file GCNRegPressure.h.

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

◆ MaxPressure

GCNRegPressure llvm::GCNRPTracker::MaxPressure

protected

Definition at line 328 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 330 of file GCNRegPressure.h.

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

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ LiveRegSet

Constructor & Destructor Documentation

◆ GCNRPTracker()

Member Function Documentation

◆ bumpDeadDefs()

◆ clearMaxPressure()

◆ getLastTrackedMI()

◆ getLastUsedLanes()

◆ getLiveRegs()

◆ getPressure()

◆ moveLiveRegs()

◆ reset() [1/4]

◆ reset() [2/4]

◆ reset() [3/4]

◆ reset() [4/4]

Member Data Documentation

◆ CurPressure

◆ LastTrackedMI

◆ LIS

◆ LiveRegs

◆ MaxPressure

◆ MRI