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:

Collaboration diagram for llvm::upward_defs_iterator:

Public Member Functions
	upward_defs_iterator (const MemoryAccessPair &Info, 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 MemoryAccessPair >
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++ (int)
upward_defs_iterator &	operator-- ()
upward_defs_iterator	operator-- (int)
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 MemoryAccessPair >
using	iterator_category = std::forward_iterator_tag
using	value_type = const MemoryAccessPair
using	difference_type = std::ptrdiff_t
using	pointer = const MemoryAccessPair *
using	reference = const MemoryAccessPair &
Protected Types inherited from llvm::iterator_facade_base< upward_defs_iterator, std::forward_iterator_tag, const MemoryAccessPair >
enum

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 1221 of file MemorySSA.h.

Constructor & Destructor Documentation

upward_defs_iterator() [1/2]

llvm::upward_defs_iterator::upward_defs_iterator ( const MemoryAccessPair &  Info, DominatorTree *  DT  )

inline

Definition at line 1228 of file MemorySSA.h.

References Info.

upward_defs_iterator() [2/2]

llvm::upward_defs_iterator::upward_defs_iterator ( )

inline

Definition at line 1237 of file MemorySSA.h.

Member Function Documentation

getPhiArgBlock()

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

inline

Definition at line 1259 of file MemorySSA.h.

References llvm::memoryaccess_def_iterator_base< T >::getPhiArgBlock().

operator*()

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

inline

Definition at line 1243 of file MemorySSA.h.

References assert(), and llvm::MemoryAccess::defs_end().

operator++()

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

inline

Definition at line 1250 of file MemorySSA.h.

References assert(), and llvm::MemoryAccess::defs_end().

operator==()

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

inline

Definition at line 1239 of file MemorySSA.h.

References Other.

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

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