LLVM: llvm::RegionPressure Struct Reference

LLVM API Documentation

#include <RegisterPressure.h>

Inheritance diagram for llvm::RegionPressure:

Inheritance graph

Collaboration diagram for llvm::RegionPressure:

Collaboration graph

List of all members.

Public Member Functions
void	reset ()
	Clear the result so it can be used for another round of pressure tracking.
void	openTop (MachineBasicBlock::const_iterator PrevTop)
	If the current top is the previous instruction (before receding), open it.
void	openBottom (MachineBasicBlock::const_iterator PrevBottom)
	If the current bottom is the previous instr (before advancing), open it.
Public Attributes
MachineBasicBlock::const_iterator	TopPos
	Record the boundary of the region being tracked.
MachineBasicBlock::const_iterator	BottomPos

Detailed Description

RegisterPressure computed within a region of instructions delimited by TopPos and BottomPos. This is a less precise version of IntervalPressure for use when LiveIntervals are unavailable.

Definition at line 80 of file RegisterPressure.h.

Member Function Documentation

void RegionPressure::openBottom ( MachineBasicBlock::const_iterator PrevBottom )

If the current bottom is the previous instr (before advancing), open it.

Definition at line 144 of file RegisterPressure.cpp.

References BottomPos, llvm::SmallVectorImpl< T >::clear(), and llvm::RegisterPressure::LiveInRegs.

void RegionPressure::openTop ( MachineBasicBlock::const_iterator PrevTop )

If the current top is the previous instruction (before receding), open it.

Definition at line 128 of file RegisterPressure.cpp.

References llvm::SmallVectorImpl< T >::clear(), llvm::RegisterPressure::LiveInRegs, and TopPos.

void RegionPressure::reset ( )

Clear the result so it can be used for another round of pressure tracking.

Definition at line 111 of file RegisterPressure.cpp.

References BottomPos, llvm::SmallVectorImpl< T >::clear(), llvm::RegisterPressure::LiveInRegs, llvm::RegisterPressure::LiveOutRegs, llvm::RegisterPressure::MaxSetPressure, and TopPos.

Member Data Documentation

MachineBasicBlock::const_iterator llvm::RegionPressure::BottomPos

Definition at line 83 of file RegisterPressure.h.

Referenced by openBottom(), and reset().

MachineBasicBlock::const_iterator llvm::RegionPressure::TopPos

Record the boundary of the region being tracked.

Definition at line 82 of file RegisterPressure.h.

Referenced by openTop(), and reset().

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