llvm::LockstepReverseIterator< EarlyFailure > Class Template Reference

Iterates through instructions in a set of blocks in reverse order from the first non-terminator. More...

#include "llvm/Transforms/Utils/LockstepReverseIterator.h"

Inheritance diagram for llvm::LockstepReverseIterator< EarlyFailure >:

Public Member Functions
	LockstepReverseIterator (ArrayRef< BasicBlock * > Blocks)
void	reset ()
bool	isValid () const
ArrayRef< Instruction * >	operator* () const
SmallSetVector< BasicBlock *, 4 > &	getActiveBlocks ()
void	restrictToBlocks (SmallSetVector< BasicBlock *, 4 > &Blocks)
LockstepReverseIterator &	operator-- ()
LockstepReverseIterator &	operator++ ()

Detailed Description

template<bool EarlyFailure = true>
class llvm::LockstepReverseIterator< EarlyFailure >

Iterates through instructions in a set of blocks in reverse order from the first non-terminator.

For example (assume all blocks have size n): LockstepReverseIterator I([B1, B2, B3]); *I– = [B1[n], B2[n], B3[n]]; *I– = [B1[n-1], B2[n-1], B3[n-1]]; *I– = [B1[n-2], B2[n-2], B3[n-2]]; ...

The iterator continues processing until all blocks have been exhausted if EarlyFailure is explicitly set to false. Use getActiveBlocks() to determine which blocks are still going and the order they appear in the list returned by operator*.

Definition at line 41 of file LockstepReverseIterator.h.

Constructor & Destructor Documentation

LockstepReverseIterator()

template<bool EarlyFailure = true>

llvm::LockstepReverseIterator< EarlyFailure >::LockstepReverseIterator ( ArrayRef< BasicBlock * >  Blocks )

inline

Definition at line 52 of file LockstepReverseIterator.h.

References Blocks, and llvm::LockstepReverseIterator< EarlyFailure >::reset().

Member Function Documentation

getActiveBlocks()

template<bool EarlyFailure = true>

SmallSetVector< BasicBlock *, 4 > & llvm::LockstepReverseIterator< EarlyFailure >::getActiveBlocks ( )

inline

Definition at line 90 of file LockstepReverseIterator.h.

isValid()

template<bool EarlyFailure = true>

bool llvm::LockstepReverseIterator< EarlyFailure >::isValid ( ) const

inline

Definition at line 81 of file LockstepReverseIterator.h.

References Fail.

Referenced by sinkCommonCodeFromPredecessors().

operator*()

template<bool EarlyFailure = true>

ArrayRef< Instruction * > llvm::LockstepReverseIterator< EarlyFailure >::operator* ( ) const

inline

Definition at line 82 of file LockstepReverseIterator.h.

operator++()

template<bool EarlyFailure = true>

LockstepReverseIterator & llvm::LockstepReverseIterator< EarlyFailure >::operator++ ( )

inline

Definition at line 130 of file LockstepReverseIterator.h.

References llvm::SmallVectorBase< Size_T >::empty(), Fail, llvm::ilist_node_with_parent< NodeTy, ParentTy, Options >::getNextNode(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().

operator--()

template<bool EarlyFailure = true>

LockstepReverseIterator & llvm::LockstepReverseIterator< EarlyFailure >::operator-- ( )

inline

Definition at line 106 of file LockstepReverseIterator.h.

References llvm::SmallVectorBase< Size_T >::empty(), Fail, llvm::ilist_node_with_parent< NodeTy, ParentTy, Options >::getPrevNode(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().

reset()

template<bool EarlyFailure = true>

void llvm::LockstepReverseIterator< EarlyFailure >::reset ( )

inline

Definition at line 56 of file LockstepReverseIterator.h.

References Blocks, llvm::SmallVectorImpl< T >::clear(), llvm::SmallVectorBase< Size_T >::empty(), Fail, llvm::ilist_node_with_parent< NodeTy, ParentTy, Options >::getPrevNode(), and llvm::SmallVectorTemplateBase< T, bool >::push_back().

Referenced by llvm::LockstepReverseIterator< EarlyFailure >::LockstepReverseIterator(), and sinkCommonCodeFromPredecessors().

restrictToBlocks()

template<bool EarlyFailure = true>

void llvm::LockstepReverseIterator< EarlyFailure >::restrictToBlocks ( SmallSetVector< BasicBlock *, 4 > &  Blocks )

inline

Definition at line 94 of file LockstepReverseIterator.h.

References llvm::SmallVectorTemplateCommon< T, typename >::begin(), Blocks, llvm::SmallVectorTemplateCommon< T, typename >::end(), and llvm::SmallVectorImpl< T >::erase().

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

• include/llvm/Transforms/Utils/LockstepReverseIterator.h