[llvm-commits] [llvm] r107496 - /llvm/trunk/lib/Transforms/Scalar/DeadStoreElimination.cpp

[Dan Gohman]

Author: djg
Date: Fri Jul  2 13:43:05 2010
New Revision: 107496

URL: http://llvm.org/viewvc/llvm-project?rev=107496&view=rev
Log:
Don't claim to preserve AliasAnalysis. First, this is doesn't actually
have any effect, and second, deleting stores can potentially invalidate
an AliasAnalysis, and there's currently no notification for this.

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

Modified: llvm/trunk/lib/Transforms/Scalar/DeadStoreElimination.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/DeadStoreElimination.cpp?rev=107496&r1=107495&r2=107496&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/DeadStoreElimination.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/DeadStoreElimination.cpp Fri Jul  2 13:43:05 2010
@@ -74,7 +74,6 @@
       AU.addRequired<AliasAnalysis>();
       AU.addRequired<MemoryDependenceAnalysis>();
       AU.addPreserved<DominatorTree>();
-      AU.addPreserved<AliasAnalysis>();
       AU.addPreserved<MemoryDependenceAnalysis>();
     }