allow token chain at start or end of node

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22020 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index e611557716d4384c6752c9e1d29e89c2484ff0ee..f1fd69eca857c88d6f9ada0af0dd9e3bdd87299a 100644 (file)
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -2044,6 +2044,8 @@ static SDNode *FindCallSeqEnd(SDNode *Node) {
     return FindCallSeqEnd(*Node->use_begin());
 
   SDOperand TheChain(Node, Node->getNumValues()-1);
+  if (TheChain.getValueType() != MVT::Other)
+    TheChain = SDOperand(Node, 0);
   assert(TheChain.getValueType() == MVT::Other && "Is not a token chain!");
 
   for (SDNode::use_iterator UI = Node->use_begin(),