Don't forget the existing root.

llvm-svn: 19531
2005-01-13 19:53:14 +00:00 · 2005-01-13 19:53:14 +00:00 · 2451684678
parent 74bc42304c
commit 2451684678
1 changed files with 2 additions and 4 deletions
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@ -878,10 +878,8 @@ void SelectionDAGISel::BuildSelectionDAG(SelectionDAG &DAG, BasicBlock *LLVMBB,
  ConstantsOut.clear();

  // Turn all of the unordered chains into one factored node.
-  switch (UnorderedChains.size()) {
-  case 0: break;
-  case 1: DAG.setRoot(UnorderedChains[0]); break;
-  default:
+  if (!UnorderedChains.empty()) {
+    UnorderedChains.push_back(DAG.getRoot());
    DAG.setRoot(DAG.getNode(ISD::TokenFactor, MVT::Other, UnorderedChains));
  }