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| author | Jim Grosbach <grosbach@apple.com> | 2011-09-30 19:58:46 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2011-09-30 19:58:46 +0000 |
| commit | 68e05fb3687ca68d5a5be49100c7c274a3185525 (patch) | |
| tree | 744773db081a2fa49a34b4fa2135cbb8bad2fa10 /lib/Transforms/InstCombine/InstCombineCompares.cpp | |
| parent | 62e0590c0e5125b6c0fe5221e6fc552605c27202 (diff) | |
Don't modify constant in-place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140875 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/InstCombine/InstCombineCompares.cpp')
| -rw-r--r-- | lib/Transforms/InstCombine/InstCombineCompares.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/Transforms/InstCombine/InstCombineCompares.cpp b/lib/Transforms/InstCombine/InstCombineCompares.cpp index 26432d2eed..bb1cbfade3 100644 --- a/lib/Transforms/InstCombine/InstCombineCompares.cpp +++ b/lib/Transforms/InstCombine/InstCombineCompares.cpp @@ -2839,10 +2839,11 @@ Instruction *InstCombiner::visitFCmpInst(FCmpInst &I) { // Avoid lossy conversions and denormals. Zero is a special case // that's OK to convert. - F.clearSign(); + APFloat Fabs = F; + Fabs.clearSign(); if (!Lossy && - ((F.compare(APFloat::getSmallestNormalized(*Sem)) != - APFloat::cmpLessThan) || F.isZero())) + ((Fabs.compare(APFloat::getSmallestNormalized(*Sem)) != + APFloat::cmpLessThan) || Fabs.isZero())) return new FCmpInst(I.getPredicate(), LHSExt->getOperand(0), ConstantFP::get(RHSC->getContext(), F)); |