From: Chris Lattner <sabre@nondot.org>
Date: Thu, 13 Jan 2005 19:53:14 +0000 (+0000)
Subject: Don't forget the existing root.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=5a6c6d98d561df671350a56c8031a3611f1c46fa;p=oota-llvm.git

Don't forget the existing root.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19531 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 8f0a916d68d..6a81975292c 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/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));
   }