Add a sanity check.

llvm-svn: 20195
2005-02-15 18:48:48 +00:00 · 2005-02-15 18:48:48 +00:00 · 3e708301d2
parent 219002ed8f
commit 3e708301d2
1 changed files with 1 additions and 0 deletions
--- a/llvm/lib/Analysis/DataStructure/DataStructure.cpp
+++ b/llvm/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)) {