#include "Target/AMDGPU/GCNRegPressure.h"

Inheritance diagram for llvm::GCNUpwardRPTracker:

Public Member Functions
	GCNUpwardRPTracker (const LiveIntervals &LIS_)
void	reset (const MachineRegisterInfo &MRI, SlotIndex SI)
	reset tracker at the specified slot index `SI`.
void	reset (const MachineBasicBlock &MBB)
	reset tracker to the end of the `MBB`.
void	reset (const MachineInstr &MI)
	reset tracker to the point just after `MI` (in program order).
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.
const GCNRegPressure &	getMaxPressure () const
void	resetMaxPressure ()
GCNRegPressure	getMaxPressureAndReset ()
void	reset (const MachineInstr &MI, const LiveRegSet *LiveRegsCopy, bool After)
void	reset (const MachineRegisterInfo &MRI_, const LiveRegSet &LiveRegs_)
Public Member Functions inherited from llvm::GCNRPTracker
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 ()

Additional Inherited Members
Public Types inherited from llvm::GCNRPTracker
using	LiveRegSet = DenseMap<unsigned, LaneBitmask>
Protected Member Functions inherited from llvm::GCNRPTracker
	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 inherited from llvm::GCNRPTracker
const LiveIntervals &	LIS
LiveRegSet	LiveRegs
GCNRegPressure	CurPressure
GCNRegPressure	MaxPressure
const MachineInstr *	LastTrackedMI = nullptr
const MachineRegisterInfo *	MRI = nullptr

Detailed Description

Definition at line 303 of file GCNRegPressure.h.

Constructor & Destructor Documentation

◆ GCNUpwardRPTracker()

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

inline

Definition at line 305 of file GCNRegPressure.h.

References llvm::GCNRPTracker::GCNRPTracker().

Member Function Documentation

◆ getMaxPressure()

const GCNRegPressure & llvm::GCNUpwardRPTracker::getMaxPressure ( ) const

inline

Definition at line 334 of file GCNRegPressure.h.

References llvm::GCNRPTracker::MaxPressure.

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

◆ getMaxPressureAndReset()

GCNRegPressure llvm::GCNUpwardRPTracker::getMaxPressureAndReset ( )

inline

Definition at line 338 of file GCNRegPressure.h.

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

◆ isValid()

bool GCNUpwardRPTracker::isValid ( ) const

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

Definition at line 792 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 .

If UseInternalIterator is set, also update the internal iterators. Setting UseInternalIterator to false allows for an externally managed iterator / program order.

Definition at line 513 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().