From: Dan Gohman <gohman@apple.com>
Date: Fri, 2 Jul 2010 18:43:05 +0000 (+0000)
Subject: Don't claim to preserve AliasAnalysis. First, this is doesn't actually
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=8c1ffae068110f1ea53cd4898eeda2da30f9a305;p=oota-llvm.git

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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107496 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Scalar/DeadStoreElimination.cpp b/lib/Transforms/Scalar/DeadStoreElimination.cpp
index 4fbc0f1191f..e047e4ffa15 100644
--- a/lib/Transforms/Scalar/DeadStoreElimination.cpp
+++ b/lib/Transforms/Scalar/DeadStoreElimination.cpp
@@ -74,7 +74,6 @@ namespace {
       AU.addRequired<AliasAnalysis>();
       AU.addRequired<MemoryDependenceAnalysis>();
       AU.addPreserved<DominatorTree>();
-      AU.addPreserved<AliasAnalysis>();
       AU.addPreserved<MemoryDependenceAnalysis>();
     }