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-rw-r--r--lib/Analysis/DataStructure/DataStructure.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Analysis/DataStructure/DataStructure.cpp b/lib/Analysis/DataStructure/DataStructure.cpp
index c0e3ef46b2..98fb07dff2 100644
--- a/lib/Analysis/DataStructure/DataStructure.cpp
+++ b/lib/Analysis/DataStructure/DataStructure.cpp
@@ -1148,6 +1148,7 @@ DSNode *DSGraph::addObjectToGraph(Value *Ptr, bool UseDeclaredType) {
assert(isa<PointerType>(Ptr->getType()) && "Ptr is not a pointer!");
const Type *Ty = cast<PointerType>(Ptr->getType())->getElementType();
DSNode *N = new DSNode(UseDeclaredType ? Ty : 0, this);
+ assert(ScalarMap[Ptr].isNull() && "Object already in this graph!");
ScalarMap[Ptr] = N;
if (GlobalValue *GV = dyn_cast<GlobalValue>(Ptr)) {