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Refactor Code inside LoopVectorizer's function isInductionVariable.

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This patch exposes LoopVectorizer's isInductionVariable function as common
a functionality.
http://reviews.llvm.org/D8608


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233352 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Karthik Bhat
2015-03-27 03:44:15 +00:00
parent 18fc42ab12
commit 611d4bde9b
2 changed files with 27 additions and 9 deletions
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4
include/llvm/Transforms/Utils/LoopUtils.h
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@@ -122,6 +122,10 @@ bool promoteLoopAccessesToScalars(AliasSet &, SmallVectorImpl<BasicBlock*> &,
/// Updates safety information in LICMSafetyInfo argument.
void computeLICMSafetyInfo(LICMSafetyInfo *, Loop *);
/// \brief Checks if the given PHINode in a loop header is an induction
/// variable. Returns true if this is an induction PHI along with the step
/// value.
bool isInductionPHI(PHINode *, ScalarEvolution *, ConstantInt *&);
}
#endif