From 68ac09d5cbca225912df7adba73f3c8a18e67e08 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Mon, 13 Mar 2006 18:37:30 +0000
Subject: [PATCH] make sure dead token factor nodes are removed by the dag
 combiner.

llvm-svn: 26731
---
 llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
index 33b046c36708..b388d830f36a 100644
--- a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -665,6 +665,7 @@ SDOperand DAGCombiner::visitTokenFactor(SDNode *N) {
   for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
     SDOperand Op = N->getOperand(i);
     if (Op.getOpcode() == ISD::TokenFactor && Op.hasOneUse()) {
+      AddToWorkList(Op.Val);  // Remove dead node.
       Changed = true;
       for (unsigned j = 0, e = Op.getNumOperands(); j != e; ++j)
         Ops.push_back(Op.getOperand(j));