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| author | Owen Anderson <resistor@mac.com> | 2007-07-07 20:13:57 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2007-07-07 20:13:57 +0000 |
| commit | 8b99e0ab206f8aa4c9d18392fc973f821c218655 (patch) | |
| tree | 6a062695c8af7d7a54acf604cefffe27b3ef7f57 /llvm/lib | |
| parent | 9b2252c6f06ad399703571c84dfb12465a2cd9e8 (diff) | |
| download | bcm5719-llvm-8b99e0ab206f8aa4c9d18392fc973f821c218655.tar.gz bcm5719-llvm-8b99e0ab206f8aa4c9d18392fc973f821c218655.zip | |
Fix an error where ANTIC_OUT was ending up with more than one expression of
the same value number. This fixes an infinite loop on 444.namd.
llvm-svn: 37967
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/GVNPRE.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/GVNPRE.cpp b/llvm/lib/Transforms/Scalar/GVNPRE.cpp index 0661c94dbd7..44846cb0df4 100644 --- a/llvm/lib/Transforms/Scalar/GVNPRE.cpp +++ b/llvm/lib/Transforms/Scalar/GVNPRE.cpp @@ -1370,7 +1370,7 @@ unsigned GVNPRE::buildsets_anticin(BasicBlock* BB, unsigned num = VN.lookup_or_add(*I); numbers.resize(VN.size()); - if (isa<Instruction>(*I)) { + if (isa<Instruction>(*I) && !numbers.test(num)) { anticIn.insert(*I); numbers.set(num); } |
