[llvm-commits] [llvm] r122822 - /llvm/trunk/lib/Transforms/Scalar/GVN.cpp

[Owen Anderson]

Author: resistor
Date: Tue Jan  4 13:10:54 2011
New Revision: 122822

URL: http://llvm.org/viewvc/llvm-project?rev=122822&view=rev
Log:
When removing a value from GVN's leaders list, don't drop the Next pointer in a corner case.

Modified:
    llvm/trunk/lib/Transforms/Scalar/GVN.cpp

Modified: llvm/trunk/lib/Transforms/Scalar/GVN.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/GVN.cpp?rev=122822&r1=122821&r2=122822&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/GVN.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/GVN.cpp Tue Jan  4 13:10:54 2011
@@ -466,6 +466,7 @@
           NumberTableEntry* Next = Curr->Next;
           Curr->Val = Next->Val;
           Curr->BB = Next->BB;
+          Curr->Next = Next->Next;
         }
       }
     }
@@ -1693,7 +1694,7 @@
     
     return false;
   }
-
+  
   uint32_t NextNum = VN.getNextUnusedValueNumber();
   unsigned Num = VN.lookup_or_add(I);