From 1c2b862be0cfb3c72870a69cfb72b2f29a93471b Mon Sep 17 00:00:00 2001
From: Owen Anderson <resistor@mac.com>
Date: Wed, 18 Apr 2007 04:38:39 +0000
Subject: [PATCH] Add an accessor to make ETForest more useful.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36246 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Analysis/Dominators.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/llvm/Analysis/Dominators.h b/include/llvm/Analysis/Dominators.h
index c550fe0d308..c8e753c1495 100644
--- a/include/llvm/Analysis/Dominators.h
+++ b/include/llvm/Analysis/Dominators.h
@@ -320,6 +320,13 @@ public:
       return NULL;
     return Common->getData<BasicBlock>();
   }
+  
+  /// Return the immediate dominator of A.
+  BasicBlock *getIDom(BasicBlock *A) {
+    ETNode *NodeA = getNode(A);
+    const ETNode *idom = NodeA->getFather();
+    return idom ? idom->getData<BasicBlock>() : 0;
+  }
 
   virtual void getAnalysisUsage(AnalysisUsage &AU) const {
     AU.setPreservesAll();