From: Eli Friedman <efriedma@codeaurora.org>
Date: Fri, 16 Sep 2016 17:58:07 +0000 (+0000)
Subject: LoopLoadElimination should preserve GlobalsAA.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=3383e2cb139c9575ff96a164f41a0d3634cc4cc3;p=llvm

LoopLoadElimination should preserve GlobalsAA.

Avoids losing GlobalsAA in the standard pass pipeline.

Differential Revision: https://reviews.llvm.org/D24094



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@281757 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Scalar/LoopLoadElimination.cpp b/lib/Transforms/Scalar/LoopLoadElimination.cpp
index 358253266eb..c586cb53f0e 100644
--- a/lib/Transforms/Scalar/LoopLoadElimination.cpp
+++ b/lib/Transforms/Scalar/LoopLoadElimination.cpp
@@ -21,6 +21,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/ADT/Statistic.h"
+#include "llvm/Analysis/GlobalsModRef.h"
 #include "llvm/Analysis/LoopAccessAnalysis.h"
 #include "llvm/Analysis/LoopInfo.h"
 #include "llvm/Analysis/ScalarEvolutionExpander.h"
@@ -580,6 +581,7 @@ public:
     AU.addRequired<ScalarEvolutionWrapperPass>();
     AU.addRequired<DominatorTreeWrapperPass>();
     AU.addPreserved<DominatorTreeWrapperPass>();
+    AU.addPreserved<GlobalsAAWrapperPass>();
   }
 
   static char ID;