[llvm-branch-commits] [llvm-branch] r102411 - /llvm/branches/Apple/Morbo/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

[Dale Johannesen]

Author: johannes
Date: Mon Apr 26 23:26:21 2010
New Revision: 102411

URL: http://llvm.org/viewvc/llvm-project?rev=102411&view=rev
Log:
$ svn merge -c 102410 https://dalej@llvm.org/svn/llvm-project/llvm/trunk
--- Merging r102410 into '.':
U    lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp


Modified:
    llvm/branches/Apple/Morbo/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

Modified: llvm/branches/Apple/Morbo/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/Apple/Morbo/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp?rev=102411&r1=102410&r2=102411&view=diff
==============================================================================
--- llvm/branches/Apple/Morbo/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp (original)
+++ llvm/branches/Apple/Morbo/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp Mon Apr 26 23:26:21 2010
@@ -3852,10 +3852,15 @@
         return 0;
       DAG.AddDbgValue(SDV, N.getNode(), isParameter);
     } else {
+      // Generating Undefs here seems to be actively harmful because it
+      // affects the line numbers.
+      return 0;
+#if 0
       // This isn't useful, but it shows what we're missing.
       SDV = DAG.getDbgValue(Variable, UndefValue::get(Address->getType()),
                             0, dl, SDNodeOrder);
       DAG.AddDbgValue(SDV, 0, isParameter);
+#endif
     }
     return 0;
   }