llvm::GCNUpwardRPTracker Class Reference

#include "Target/AMDGPU/GCNRegPressure.h"

Inheritance diagram for llvm::GCNUpwardRPTracker:

Public Member Functions
	GCNUpwardRPTracker (LiveIntervals &LIS_)
void	reset (const MachineInstr &MI)
	Resets tracker to the point just after MI (in program order), which can be a debug instruction.
void	recede (const MachineInstr &MI)
	Move to the state of RP just before the MI.
bool	isValid () const
	returns whether the tracker's state after receding MI corresponds to reported by LIS.
GCNRegPressure	getMaxPressureAndReset ()
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	reset (const MachineRegisterInfo &MRI, const LiveRegSet &LiveRegs)
	Resets tracker with the provided LiveRegs.
Public Member Functions inherited from llvm::GCNRPTracker
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 ()
const GCNRegPressure &	getMaxPressure () const
void	resetMaxPressure ()
GCNRegPressure	getPressure () const
decltype(LiveRegs)	moveLiveRegs ()

Additional Inherited Members
Public Types inherited from llvm::GCNRPTracker
using	LiveRegSet = DenseMap<unsigned, LaneBitmask>
Protected Member Functions inherited from llvm::GCNRPTracker
	GCNRPTracker (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.
LaneBitmask	getLastUsedLanes (Register Reg, SlotIndex Pos) const
	Mostly copy/paste from CodeGen/RegisterPressure.cpp.
Protected Attributes inherited from llvm::GCNRPTracker
LiveIntervals &	LIS
LiveRegSet	LiveRegs
GCNRegPressure	CurPressure
GCNRegPressure	MaxPressure
const MachineInstr *	LastTrackedMI = nullptr
const MachineRegisterInfo *	MRI = nullptr

Detailed Description

Definition at line 362 of file GCNRegPressure.h.

Constructor & Destructor Documentation

GCNUpwardRPTracker()

llvm::GCNUpwardRPTracker::GCNUpwardRPTracker ( LiveIntervals & LIS_ )

inline

Definition at line 364 of file GCNRegPressure.h.

References llvm::GCNRPTracker::GCNRPTracker().

Member Function Documentation

getMaxPressureAndReset()

GCNRegPressure llvm::GCNUpwardRPTracker::getMaxPressureAndReset ( )

inline

Definition at line 379 of file GCNRegPressure.h.

References llvm::GCNRPTracker::MaxPressure, and llvm::GCNRPTracker::resetMaxPressure().

isValid()

bool GCNUpwardRPTracker::isValid

(

)

const

returns whether the tracker's state after receding MI corresponds to reported by LIS.

Definition at line 889 of file GCNRegPressure.cpp.

References llvm::GCNRPTracker::CurPressure, llvm::dbgs(), llvm::getLiveRegs(), llvm::getRegPressure(), llvm::isEqual(), llvm::GCNRPTracker::LIS, llvm::GCNRPTracker::LiveRegs, llvm::GCNRPTracker::MRI, llvm::print(), and llvm::reportMismatch().

recede()

void GCNUpwardRPTracker::recede

(

const MachineInstr &

MI

)

Move to the state of RP just before the MI.

Definition at line 589 of file GCNRegPressure.cpp.

References assert(), collectVirtualRegUses(), llvm::GCNRPTracker::CurPressure, getDefRegMask(), llvm::LaneBitmask::getNone(), llvm::getRegPressure(), I, llvm::GCNRegPressure::inc(), llvm::GCNRPTracker::LastTrackedMI, llvm::GCNRPTracker::LIS, llvm::GCNRPTracker::LiveRegs, llvm::max(), llvm::GCNRPTracker::MaxPressure, MI, llvm::GCNRPTracker::MRI, and llvm::LaneBitmask::none().

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

reset() [1/5]

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

Resets tracker at the start or End of the MBB.

Definition at line 326 of file GCNRegPressure.cpp.

References assert().

reset() [2/5]

void llvm::GCNUpwardRPTracker::reset ( const MachineInstr & MI )

inline

Resets tracker to the point just after MI (in program order), which can be a debug instruction.

Definition at line 370 of file GCNRegPressure.h.

References MI, and reset().

Referenced by llvm::dumpMaxRegPressure(), reset(), and llvm::GCNRegPressurePrinter::runOnMachineFunction().

reset() [3/5]

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

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

Definition at line 323 of file GCNRegPressure.cpp.

reset() [4/5]

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

Resets tracker with the provided LiveRegs.

Definition at line 335 of file GCNRegPressure.cpp.

reset() [5/5]

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

Resets tracker at the specified slot index SI.

Definition at line 329 of file GCNRegPressure.cpp.

References llvm::GCNRPTracker::LIS, and llvm::LiveInterval::subranges().

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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