LLVM  6.0.0svn
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llvm::LiveRegSet Class Reference

A set of live virtual registers and physical register units. More...

#include "llvm/CodeGen/RegisterPressure.h"

Public Member Functions

void clear ()
 
void init (const MachineRegisterInfo &MRI)
 
LaneBitmask contains (unsigned Reg) const
 
LaneBitmask insert (RegisterMaskPair Pair)
 Mark the Pair.LaneMask lanes of Pair.Reg as live. More...
 
LaneBitmask erase (RegisterMaskPair Pair)
 Clears the Pair.LaneMask lanes of Pair.Reg (mark them as dead). More...
 
size_t size () const
 
template<typename ContainerT >
void appendTo (ContainerT &To) const
 

Detailed Description

A set of live virtual registers and physical register units.

This is a wrapper around a SparseSet which deals with mapping register unit and virtual register indexes to an index usable by the sparse set.

Definition at line 262 of file RegisterPressure.h.

Member Function Documentation

◆ appendTo()

template<typename ContainerT >
void llvm::LiveRegSet::appendTo ( ContainerT &  To) const
inline

Definition at line 335 of file RegisterPressure.h.

References P.

◆ clear()

void LiveRegSet::clear ( )

Definition at line 217 of file RegisterPressure.cpp.

References Regs.

◆ contains()

LaneBitmask llvm::LiveRegSet::contains ( unsigned  Reg) const
inline

◆ erase()

LaneBitmask llvm::LiveRegSet::erase ( RegisterMaskPair  Pair)
inline

Clears the Pair.LaneMask lanes of Pair.Reg (mark them as dead).

Returns the previously live lanes of Pair.Reg.

Definition at line 320 of file RegisterPressure.h.

References llvm::SparseSet< ValueT, KeyFunctorT, SparseT >::end(), llvm::SparseSet< ValueT, KeyFunctorT, SparseT >::find(), llvm::LaneBitmask::getNone(), I, llvm::RegisterMaskPair::LaneMask, and llvm::RegisterMaskPair::RegUnit.

◆ init()

void LiveRegSet::init ( const MachineRegisterInfo MRI)

◆ insert()

LaneBitmask llvm::LiveRegSet::insert ( RegisterMaskPair  Pair)
inline

Mark the Pair.LaneMask lanes of Pair.Reg as live.

Returns the previously live lanes of Pair.Reg.

Definition at line 307 of file RegisterPressure.h.

References llvm::LaneBitmask::getNone(), llvm::SparseSet< ValueT, KeyFunctorT, SparseT >::insert(), llvm::RegisterMaskPair::LaneMask, and llvm::RegisterMaskPair::RegUnit.

◆ size()

size_t llvm::LiveRegSet::size ( ) const
inline

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