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| author | Nick Lewycky <nicholas@mxc.ca> | 2007-09-20 00:48:36 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2007-09-20 00:48:36 +0000 |
| commit | eae7e7d00b9552546e9b105a4d7612713954f339 (patch) | |
| tree | c88deb359671ce5b7e0d56cd8eda9f6cb8db9a49 /llvm/lib/Transforms | |
| parent | 8010320365d5a59bcf4cadfed290ec7b07e409b7 (diff) | |
| download | bcm5719-llvm-eae7e7d00b9552546e9b105a4d7612713954f339.tar.gz bcm5719-llvm-eae7e7d00b9552546e9b105a4d7612713954f339.zip | |
Fix optimization. %x = sub %x, %y does not imply that %y is zero.
llvm-svn: 42157
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/PredicateSimplifier.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/PredicateSimplifier.cpp b/llvm/lib/Transforms/Scalar/PredicateSimplifier.cpp index 8b4ed73e47f..3723bcbb0a6 100644 --- a/llvm/lib/Transforms/Scalar/PredicateSimplifier.cpp +++ b/llvm/lib/Transforms/Scalar/PredicateSimplifier.cpp @@ -2001,7 +2001,7 @@ namespace { if (!isRelatedBy(Known, Zero, ICmpInst::ICMP_NE)) break; // otherwise, fall-through. case Instruction::Sub: - if (Unknown == Op1) break; + if (Unknown == Op0) break; // otherwise, fall-through. case Instruction::Xor: case Instruction::Add: |
