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| author | Nick Lewycky <nicholas@mxc.ca> | 2011-11-09 07:11:37 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2011-11-09 07:11:37 +0000 |
| commit | 89d093d5b69d21b5a4f81b969597bd76b6327cb5 (patch) | |
| tree | 602190a913525e455bc1939c82db40e1071800f6 /lib/Analysis/ScalarEvolution.cpp | |
| parent | c6bcf4315c568610b89e4c79898cfe36ff2e4905 (diff) | |
| download | llvm-89d093d5b69d21b5a4f81b969597bd76b6327cb5.tar.gz llvm-89d093d5b69d21b5a4f81b969597bd76b6327cb5.tar.bz2 llvm-89d093d5b69d21b5a4f81b969597bd76b6327cb5.tar.xz | |
Don't forget to check FlagNW when determining whether an AddRecExpr will wrap
or not. Patch by Brendon Cahoon!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144173 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/ScalarEvolution.cpp')
| -rw-r--r-- | lib/Analysis/ScalarEvolution.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp index f65cf34335..b940d93d6e 100644 --- a/lib/Analysis/ScalarEvolution.cpp +++ b/lib/Analysis/ScalarEvolution.cpp @@ -6228,8 +6228,9 @@ ScalarEvolution::HowManyLessThans(const SCEV *LHS, const SCEV *RHS, return getCouldNotCompute(); // Check to see if we have a flag which makes analysis easy. - bool NoWrap = isSigned ? AddRec->getNoWrapFlags(SCEV::FlagNSW) : - AddRec->getNoWrapFlags(SCEV::FlagNUW); + bool NoWrap = isSigned ? + AddRec->getNoWrapFlags((SCEV::NoWrapFlags)(SCEV::FlagNSW | SCEV::FlagNW)) : + AddRec->getNoWrapFlags((SCEV::NoWrapFlags)(SCEV::FlagNUW | SCEV::FlagNW)); if (AddRec->isAffine()) { unsigned BitWidth = getTypeSizeInBits(AddRec->getType()); |