From efbba72cb282c80bb4bebae0f52e3a43b95fbd55 Mon Sep 17 00:00:00 2001
From: James Molloy <james.molloy@arm.com>
Date: Thu, 10 Sep 2015 10:22:12 +0000
Subject: Add GlobalsAA as preserved to a bunch of transforms

GlobalsAA must by definition be preserved in function passes, but the passmanager doesn't know that. Make each pass explicitly preserve GlobalsAA.

llvm-svn: 247263
---
 llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp')

diff --git a/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp b/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp
index 231411a..c766fae 100644
--- a/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp
+++ b/llvm/lib/Transforms/Scalar/SimplifyCFGPass.cpp
@@ -25,6 +25,7 @@
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/Statistic.h"
+#include "llvm/Analysis/GlobalsModRef.h"
 #include "llvm/Analysis/AssumptionCache.h"
 #include "llvm/Analysis/TargetTransformInfo.h"
 #include "llvm/IR/Attributes.h"
@@ -217,6 +218,7 @@ struct CFGSimplifyPass : public FunctionPass {
   void getAnalysisUsage(AnalysisUsage &AU) const override {
     AU.addRequired<AssumptionCacheTracker>();
     AU.addRequired<TargetTransformInfoWrapperPass>();
+    AU.addPreserved<GlobalsAAWrapperPass>();
   }
 };
 }
-- 
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