Avoid undefined behavior from passing a std::vector's own contents
in as an argument to push_back.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178166 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/CodeGenSchedule.cpp b/utils/TableGen/CodeGenSchedule.cpp
index 818fce2..886c4c6 100644
--- a/utils/TableGen/CodeGenSchedule.cpp
+++ b/utils/TableGen/CodeGenSchedule.cpp
@@ -1105,7 +1105,9 @@
// Push another copy of the current transition for more variants.
Variant.TransVecIdx = TransVec.size();
IntersectingVariants.push_back(Variant);
- TransVec.push_back(TransVec[TransIdx]);
+
+ PredTransition Trans = TransVec[TransIdx];
+ TransVec.push_back(Trans);
}
}
}