Add CallGraphNode::removeAnyCallEdgeTo method

llvm-svn: 16398

2 files changed, 17 insertions, 0 deletions

diff --git a/llvm/include/llvm/Analysis/CallGraph.h b/llvm/include/llvm/Analysis/CallGraph.h
index 4b4db6bd608..8f2c3023890 100644
--- a/llvm/include/llvm/Analysis/CallGraph.h
+++ b/llvm/include/llvm/Analysis/CallGraph.h
@@ -251,6 +251,11 @@ public:
   /// used sparingly.
   void removeCallEdgeTo(CallGraphNode *Callee);
 
+  /// removeAnyCallEdgeTo - This method removes any call edges from this node to
+  /// the specified callee function.  This takes more time to execute than
+  /// removeCallEdgeTo, so it should not be used unless necessary.
+  void removeAnyCallEdgeTo(CallGraphNode *Callee);
+
 private:                    // Stuff to construct the node, used by CallGraph
   friend class CallGraph;
 
diff --git a/llvm/lib/Analysis/IPA/CallGraph.cpp b/llvm/lib/Analysis/IPA/CallGraph.cpp
index ac926dc59a1..e3a60248895 100644
--- a/llvm/lib/Analysis/IPA/CallGraph.cpp
+++ b/llvm/lib/Analysis/IPA/CallGraph.cpp
@@ -206,3 +206,15 @@ void CallGraphNode::removeCallEdgeTo(CallGraphNode *Callee) {
     }
   }
 }
+
+// removeAnyCallEdgeTo - This method removes any call edges from this node to
+// the specified callee function.  This takes more time to execute than
+// removeCallEdgeTo, so it should not be used unless necessary.
+void CallGraphNode::removeAnyCallEdgeTo(CallGraphNode *Callee) {
+  for (std::vector<CallGraphNode*>::iterator I = CalledFunctions.begin(),
+         E = CalledFunctions.end(); I != E; ++I)
+    if (*I == Callee) {
+      CalledFunctions.erase(I);
+      E = CalledFunctions.end();
+    }
+}