llvm::PredIteratorCache Class Reference

#include <PredIteratorCache.h>

List of all members.

Public Member Functions
BasicBlock **	GetPreds (BasicBlock *BB)
unsigned	GetNumPreds (BasicBlock *BB)
void	clear ()
	clear - Remove all information.

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Detailed Description

PredIteratorCache - This class is an extremely trivial cache for predecessor iterator queries. This is useful for code that repeatedly wants the predecessor list for the same blocks.

Definition at line 27 of file PredIteratorCache.h.

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Member Function Documentation

void llvm::PredIteratorCache::clear

(

)

[inline]

clear - Remove all information.

Definition at line 62 of file PredIteratorCache.h.

References llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT >::clear().

unsigned llvm::PredIteratorCache::GetNumPreds

(

BasicBlock *

BB

)

[inline]

Definition at line 56 of file PredIteratorCache.h.

References GetPreds().

Referenced by processInstruction().

BasicBlock** llvm::PredIteratorCache::GetPreds

(

BasicBlock *

BB

)

[inline]

GetPreds - Get a cached list for the null-terminated predecessor list of the specified block. This can be used in a loop like this: for (BasicBlock **PI = PredCache->GetPreds(BB); *PI; ++PI) use(*PI); instead of: for (pred_iterator PI = pred_begin(BB), E = pred_end(BB); PI != E; ++PI)

Definition at line 42 of file PredIteratorCache.h.

References llvm::SmallVectorTemplateCommon< T >::begin(), llvm::SmallVectorTemplateCommon< T >::end(), llvm::pred_begin(), llvm::pred_end(), llvm::SmallVectorTemplateBase< T, isPodLike< T >::value >::push_back(), and llvm::SmallVectorTemplateCommon< T >::size().

Referenced by GetNumPreds(), and processInstruction().

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

• PredIteratorCache.h