add a helper

llvm-svn: 22823

1 files changed, 7 insertions, 0 deletions

diff --git a/llvm/include/llvm/Transforms/Utils/BasicBlockUtils.h b/llvm/include/llvm/Transforms/Utils/BasicBlockUtils.h
index 68e483c0bc7..7a67df537f5 100644
--- a/llvm/include/llvm/Transforms/Utils/BasicBlockUtils.h
+++ b/llvm/include/llvm/Transforms/Utils/BasicBlockUtils.h
@@ -84,6 +84,13 @@ inline bool SplitCriticalEdge(BasicBlock *Succ, pred_iterator PI, Pass *P = 0) {
   return MadeChange;
 }
 
+inline bool SplitCriticalEdge(BasicBlock *Src, BasicBlock *Dst, Pass *P = 0) {
+  for (succ_iterator SI = succ_begin(Src); ; ++SI) {
+    assert(SI != succ_end(Src) && "Edge doesn't exist");
+    if (*SI == Dst)
+      return SplitCriticalEdge(Src, SI, P);
+  }
+}
 } // End llvm namespace
 
 #endif