diff options
Diffstat (limited to 'lib/Transforms/Scalar/LoopStrengthReduce.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/LoopStrengthReduce.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp index 744e0548ba..db8ab485e3 100644 --- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp +++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp @@ -929,7 +929,8 @@ unsigned LoopStrengthReduce::CheckForIVReuse(const SCEVHandle &Stride, for (std::map<SCEVHandle, IVsOfOneStride>::iterator SI= IVsByStride.begin(), SE = IVsByStride.end(); SI != SE; ++SI) { int64_t SSInt = cast<SCEVConstant>(SI->first)->getValue()->getSExtValue(); - if (unsigned(abs(SInt)) < SSInt || (SInt % SSInt) != 0) + if (SInt != -SSInt && + (unsigned(abs(SInt)) < SSInt || (SInt % SSInt) != 0)) continue; int64_t Scale = SInt / SSInt; // Check that this stride is valid for all the types used for loads and |