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-rw-r--r--lib/Support/DAGDeltaAlgorithm.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Support/DAGDeltaAlgorithm.cpp b/lib/Support/DAGDeltaAlgorithm.cpp
index 4da3fe34c8..814566494d 100644
--- a/lib/Support/DAGDeltaAlgorithm.cpp
+++ b/lib/Support/DAGDeltaAlgorithm.cpp
@@ -290,7 +290,7 @@ bool DAGDeltaAlgorithmImpl::GetTestResult(const changeset_ty &Changes,
const changeset_ty &Required) {
changeset_ty Extended(Required);
Extended.insert(Changes.begin(), Changes.end());
- for (changeset_ty::iterator it = Changes.begin(),
+ for (changeset_ty::const_iterator it = Changes.begin(),
ie = Changes.end(); it != ie; ++it)
Extended.insert(pred_closure_begin(*it), pred_closure_end(*it));