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-rw-r--r--lib/Analysis/ScalarEvolution.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
index 1b3aae8789..50cece0365 100644
--- a/lib/Analysis/ScalarEvolution.cpp
+++ b/lib/Analysis/ScalarEvolution.cpp
@@ -472,7 +472,7 @@ static void GroupByComplexity(std::vector<SCEVHandle> &Ops) {
}
// Do the rough sort by complexity.
- std::sort(Ops.begin(), Ops.end(), SCEVComplexityCompare());
+ std::stable_sort(Ops.begin(), Ops.end(), SCEVComplexityCompare());
// Now that we are sorted by complexity, group elements of the same
// complexity. Note that this is, at worst, N^2, but the vector is likely to