[llvm-commits] [llvm] r99735 - /llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp

[Chris Lattner]

Author: lattner
Date: Sat Mar 27 23:54:33 2010
New Revision: 99735

URL: http://llvm.org/viewvc/llvm-project?rev=99735&view=rev
Log:
don't add flag nodes with chain results to the NowDeadNodes
list multiple times when MorphNodeTo can't be applied.

Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp?rev=99735&r1=99734&r2=99735&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp Sat Mar 27 23:54:33 2010
@@ -1614,8 +1614,9 @@
       CurDAG->ReplaceAllUsesOfValueWith(SDValue(FRN, FRN->getNumValues()-1),
                                         InputFlag, &ISU);
       
-      // If the node became dead, delete it.
-      if (FRN->use_empty())
+      // If the node became dead and we haven't already seen it, delete it.
+      if (FRN->use_empty() &&
+          !std::count(NowDeadNodes.begin(), NowDeadNodes.end(), FRN))
         NowDeadNodes.push_back(FRN);
     }
   }