commit 0bb8b1986588a9a3dfde09ae8c79bdba3f406d82
author Chris Lattner <sabre@nondot.org> Tue Sep 21 20:46:40 2010 +0000
committer Chris Lattner <sabre@nondot.org> Tue Sep 21 20:46:40 2010 +0000
tree 6539ef4beea24a9e7046cde5b58ab2b4a04a784b
parent 5e65dfbb970870142dbcea166ba5344f5a9317e2

correct this logic.

llvm-svn: 114474

llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 7b2898d..a754ac2 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -2087,8 +2087,8 @@
       unsigned RecNo = MatcherTable[MatcherIndex++];
       assert(RecNo < RecordedNodes.size() && "Invalid CheckComplexPat");
       SDNode *Parent = 0;
-      if (NodeStack.size() > 1)
-        Parent = NodeStack[NodeStack.size()-2].getNode();
+      if (!NodeStack.empty())
+        Parent = NodeStack[NodeStack.size()-1].getNode();
       
       if (!CheckComplexPattern(NodeToMatch, Parent, RecordedNodes[RecNo], CPNum,
                                RecordedNodes))