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-rw-r--r--lib/Transforms/Scalar/GVN.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp
index f7470c3c19..a7cc9049cd 100644
--- a/lib/Transforms/Scalar/GVN.cpp
+++ b/lib/Transforms/Scalar/GVN.cpp
@@ -2237,7 +2237,7 @@ bool GVN::splitCriticalEdges() {
std::pair<TerminatorInst*, unsigned> Edge = toSplit.pop_back_val();
SplitCriticalEdge(Edge.first, Edge.second, this);
} while (!toSplit.empty());
- MD->invalidateCachedPredecessors();
+ if (MD) MD->invalidateCachedPredecessors();
return true;
}