make sure dead token factor nodes are removed by the dag combiner.

llvm-svn: 26731
2006-03-13 18:37:30 +00:00 · 2006-03-13 18:37:30 +00:00 · 68ac09d5cb
parent 611f965820
commit 68ac09d5cb
1 changed files with 1 additions and 0 deletions
--- 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));