Revert r111394. It was too aggressive.

We must complete the DFS, otherwise we might miss needed phi-defs, and
prematurely color live ranges with a non-dominating value.

This is not a big deal since we get to color more of the CFG and the next
mapValue call will be faster.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111397 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 9 deletions

diff --git a/include/llvm/ADT/DepthFirstIterator.h b/include/llvm/ADT/DepthFirstIterator.h
index 3edb555078..b9e5cbdf8c 100644
--- a/include/llvm/ADT/DepthFirstIterator.h
+++ b/include/llvm/ADT/DepthFirstIterator.h
@@ -193,15 +193,6 @@ public:
   NodeType *getPath(unsigned n) const {
     return VisitStack[n].first.getPointer();
   }
-
-  /// skipChildren - Skip all children of Node, assuming that Node is on the
-  /// current path. This allows more aggressive pruning than just skipping
-  /// children of the current node.
-  _Self& skipChildren(NodeType *Node) {
-    while (!VisitStack.empty() && **this != Node)
-      VisitStack.pop_back();
-    return skipChildren();
-  }
 };