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Avoid undefined behavior from passing a std::vector's own contents 

in as an argument to push_back.

llvm-svn: 178166
This commit is contained in:
Dan Gohman 2013-03-27 18:44:56 +00:00
parent f1af79ab45
commit 38a723830c
1 changed files with 3 additions and 1 deletions
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4
llvm/utils/TableGen/CodeGenSchedule.cpp
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@ -1105,7 +1105,9 @@ void PredTransitions::getIntersectingVariants(
// Push another copy of the current transition for more variants. // Push another copy of the current transition for more variants.
Variant.TransVecIdx = TransVec.size(); Variant.TransVecIdx = TransVec.size();
IntersectingVariants.push_back(Variant); IntersectingVariants.push_back(Variant);
TransVec.push_back(TransVec[TransIdx]);
PredTransition Trans = TransVec[TransIdx];
TransVec.push_back(Trans);
} }
} }
} }