[llvm-commits] [llvm] r96732 - /llvm/trunk/include/llvm/CodeGen/DAGISelHeader.h

[Chris Lattner]

Author: lattner
Date: Sun Feb 21 01:55:48 2010
New Revision: 96732

URL: http://llvm.org/viewvc/llvm-project?rev=96732&view=rev
Log:
when a match fails and we have to rollback, make sure to keep 'N' in 
sync with the top of stack.  This fixes a bunch of failures on larger
testcases.

Modified:
    llvm/trunk/include/llvm/CodeGen/DAGISelHeader.h

Modified: llvm/trunk/include/llvm/CodeGen/DAGISelHeader.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/DAGISelHeader.h?rev=96732&r1=96731&r2=96732&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/DAGISelHeader.h (original)
+++ llvm/trunk/include/llvm/CodeGen/DAGISelHeader.h Sun Feb 21 01:55:48 2010
@@ -760,6 +760,7 @@
     const MatchScope &LastScope = MatchScopes.back();
     RecordedNodes.resize(LastScope.NumRecordedNodes);
     NodeStack.resize(LastScope.NodeStackSize);
+    N = NodeStack.back();
     
     if (LastScope.NumMatchedMemRefs != MatchedMemRefs.size())
       MatchedMemRefs.resize(LastScope.NumMatchedMemRefs);