llvm::FoldingSetNodeIDRef Class Reference

This class describes a reference to an interned FoldingSetNodeID, which can be a useful to store node id data rather than using plain FoldingSetNodeIDs, since the 32-element SmallVector is often much larger than necessary, and the possibility of heap allocation means it requires a non-trivial destructor call. More...

#include "llvm/ADT/FoldingSet.h"

Public Member Functions
	FoldingSetNodeIDRef ()=default
	FoldingSetNodeIDRef (const unsigned *D, size_t S)
unsigned	computeHash () const
unsigned	computeStableHash () const
bool	operator== (FoldingSetNodeIDRef RHS) const
bool	operator!= (FoldingSetNodeIDRef RHS) const
LLVM_ABI bool	operator< (FoldingSetNodeIDRef) const
	Used to compare the "ordering" of two nodes as defined by the profiled bits and their ordering defined by memcmp().
const unsigned *	getData () const
size_t	getSize () const

Static Public Attributes
static constexpr unsigned	NotAHash = 0

Detailed Description

This class describes a reference to an interned FoldingSetNodeID, which can be a useful to store node id data rather than using plain FoldingSetNodeIDs, since the 32-element SmallVector is often much larger than necessary, and the possibility of heap allocation means it requires a non-trivial destructor call.

Definition at line 168 of file FoldingSet.h.

Constructor & Destructor Documentation

FoldingSetNodeIDRef() [1/2]

llvm::FoldingSetNodeIDRef::FoldingSetNodeIDRef ( )

default

Referenced by operator!=(), operator<(), and operator==().

FoldingSetNodeIDRef() [2/2]

llvm::FoldingSetNodeIDRef::FoldingSetNodeIDRef ( const unsigned * D, size_t S )

inline

Definition at line 174 of file FoldingSet.h.

References D().

Member Function Documentation

computeHash()

unsigned llvm::FoldingSetNodeIDRef::computeHash ( ) const

inline

Definition at line 182 of file FoldingSet.h.

References llvm::hash_combine_range(), and NotAHash.

Referenced by llvm::FoldingSetNodeID::computeHash().

computeStableHash()

unsigned llvm::FoldingSetNodeIDRef::computeStableHash ( ) const

inline

Definition at line 190 of file FoldingSet.h.

References llvm::xxh3_64bits().

Referenced by llvm::FoldingSetNodeID::computeStableHash().

getData()

const unsigned * llvm::FoldingSetNodeIDRef::getData ( ) const

inline

Definition at line 206 of file FoldingSet.h.

getSize()

size_t llvm::FoldingSetNodeIDRef::getSize ( ) const

inline

Definition at line 207 of file FoldingSet.h.

operator!=()

bool llvm::FoldingSetNodeIDRef::operator!= ( FoldingSetNodeIDRef RHS ) const

inline

Definition at line 200 of file FoldingSet.h.

References FoldingSetNodeIDRef(), and RHS.

operator<()

bool FoldingSetNodeIDRef::operator<

(

FoldingSetNodeIDRef

RHS

)

const

Used to compare the "ordering" of two nodes as defined by the profiled bits and their ordering defined by memcmp().

Definition at line 27 of file FoldingSet.cpp.

References FoldingSetNodeIDRef().

operator==()

bool llvm::FoldingSetNodeIDRef::operator== ( FoldingSetNodeIDRef RHS ) const

inline

Definition at line 195 of file FoldingSet.h.

References FoldingSetNodeIDRef(), and RHS.

Member Data Documentation

NotAHash

unsigned llvm::FoldingSetNodeIDRef::NotAHash = 0

staticconstexpr

Definition at line 176 of file FoldingSet.h.

Referenced by computeHash(), llvm::FoldingSetBase::erase(), llvm::FoldingSetInsertToken::operator bool(), and llvm::FoldingSetBase::probe().

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

• include/llvm/ADT/FoldingSet.h
• lib/Support/FoldingSet.cpp