llvm::upward_defs_iterator Class Reference

Provide an iterator that walks defs, giving both the memory access, and the current pointer location, updating the pointer location as it changes due to phi node translation. More...

#include "llvm/Analysis/MemorySSA.h"

Inheritance diagram for llvm::upward_defs_iterator:

Public Member Functions
	upward_defs_iterator (const UpwardDefsElem &Elem, DominatorTree *DT)
	upward_defs_iterator ()
bool	operator== (const upward_defs_iterator &Other) const
std::iterator_traits< BaseT >::reference	operator* () const
upward_defs_iterator &	operator++ ()
BasicBlock *	getPhiArgBlock () const
Public Member Functions inherited from llvm::iterator_facade_base< upward_defs_iterator, std::forward_iterator_tag, const UpwardDefsElem >
upward_defs_iterator	operator+ (std::ptrdiff_t n) const
upward_defs_iterator	operator- (std::ptrdiff_t n) const
upward_defs_iterator &	operator++ ()
upward_defs_iterator &	operator-- ()
bool	operator!= (const upward_defs_iterator &RHS) const
bool	operator> (const upward_defs_iterator &RHS) const
bool	operator<= (const upward_defs_iterator &RHS) const
bool	operator>= (const upward_defs_iterator &RHS) const
PointerProxy	operator-> () const
ReferenceProxy	operator[] (std::ptrdiff_t n) const

Additional Inherited Members
Public Types inherited from llvm::iterator_facade_base< upward_defs_iterator, std::forward_iterator_tag, const UpwardDefsElem >
enum
using	iterator_category
using	value_type
using	difference_type
using	pointer
using	reference

Detailed Description

Provide an iterator that walks defs, giving both the memory access, and the current pointer location, updating the pointer location as it changes due to phi node translation.

This iterator, while somewhat specialized, is what most clients actually want when walking upwards through MemorySSA def chains. It takes a pair of <MemoryAccess,MemoryLocation>, and walks defs, properly translating the memory location through phi nodes for the user.

Definition at line 1240 of file MemorySSA.h.

Constructor & Destructor Documentation

upward_defs_iterator() [1/2]

llvm::upward_defs_iterator::upward_defs_iterator ( const UpwardDefsElem & Elem, DominatorTree * DT )

inline

Definition at line 1247 of file MemorySSA.h.

References llvm::isa(), llvm::UpwardDefsElem::MA, and llvm::UpwardDefsElem::MayBeCrossIteration.

Referenced by operator++(), and operator==().

upward_defs_iterator() [2/2]

llvm::upward_defs_iterator::upward_defs_iterator ( )

inline

Definition at line 1257 of file MemorySSA.h.

Member Function Documentation

getPhiArgBlock()

BasicBlock * llvm::upward_defs_iterator::getPhiArgBlock ( ) const

inline

Definition at line 1279 of file MemorySSA.h.

operator*()

std::iterator_traits< BaseT >::reference llvm::upward_defs_iterator::operator* ( ) const

inline

Definition at line 1263 of file MemorySSA.h.

References assert().

operator++()

upward_defs_iterator & llvm::upward_defs_iterator::operator++ ( )

inline

Definition at line 1270 of file MemorySSA.h.

References assert(), and upward_defs_iterator().

operator==()

bool llvm::upward_defs_iterator::operator== ( const upward_defs_iterator & Other ) const

inline

Definition at line 1259 of file MemorySSA.h.

References llvm::Other, and upward_defs_iterator().

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

• include/llvm/Analysis/MemorySSA.h
• lib/Analysis/MemorySSA.cpp