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| author | Andrew Trick <atrick@apple.com> | 2011-03-14 16:50:06 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2011-03-14 16:50:06 +0000 |
| commit | 3228cc259b5ca00e46af36da369a451f5736cbf4 (patch) | |
| tree | 6141451ca8d1b346ee6d2dcdd772f3dbbb9a8c69 /lib/Transforms/Scalar/LoopIdiomRecognize.cpp | |
| parent | d99b39e43b6e8263c80425c99d4e924f08e86e43 (diff) | |
| download | llvm-3228cc259b5ca00e46af36da369a451f5736cbf4.tar.gz llvm-3228cc259b5ca00e46af36da369a451f5736cbf4.tar.bz2 llvm-3228cc259b5ca00e46af36da369a451f5736cbf4.tar.xz | |
Added SCEV::NoWrapFlags to manage unsigned, signed, and self wrap
properties.
Added the self-wrap flag for SCEV::AddRecExpr.
A slew of temporary FIXMEs indicate the intention of the no-self-wrap flag
without changing behavior in this revision.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127590 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/LoopIdiomRecognize.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/LoopIdiomRecognize.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/Transforms/Scalar/LoopIdiomRecognize.cpp b/lib/Transforms/Scalar/LoopIdiomRecognize.cpp index de91fd919b..1366231e9a 100644 --- a/lib/Transforms/Scalar/LoopIdiomRecognize.cpp +++ b/lib/Transforms/Scalar/LoopIdiomRecognize.cpp @@ -485,10 +485,10 @@ processLoopStridedStore(Value *DestPtr, unsigned StoreSize, BECount = SE->getTruncateOrZeroExtend(BECount, IntPtr); const SCEV *NumBytesS = SE->getAddExpr(BECount, SE->getConstant(IntPtr, 1), - true /*no unsigned overflow*/); + SCEV::FlagNUW); if (StoreSize != 1) NumBytesS = SE->getMulExpr(NumBytesS, SE->getConstant(IntPtr, StoreSize), - true /*no unsigned overflow*/); + SCEV::FlagNUW); Value *NumBytes = Expander.expandCodeFor(NumBytesS, IntPtr, Preheader->getTerminator()); @@ -581,10 +581,10 @@ processLoopStoreOfLoopLoad(StoreInst *SI, unsigned StoreSize, BECount = SE->getTruncateOrZeroExtend(BECount, IntPtr); const SCEV *NumBytesS = SE->getAddExpr(BECount, SE->getConstant(IntPtr, 1), - true /*no unsigned overflow*/); + SCEV::FlagNUW); if (StoreSize != 1) NumBytesS = SE->getMulExpr(NumBytesS, SE->getConstant(IntPtr, StoreSize), - true /*no unsigned overflow*/); + SCEV::FlagNUW); Value *NumBytes = Expander.expandCodeFor(NumBytesS, IntPtr, Preheader->getTerminator()); |