[GVNHoist] Mark GlobalsAA as preserved by GVNHoist.

Reviewers: sebpop, hiraditya

Reviewed By: sebpop

Subscribers: n.bozhenov, llvm-commits

Differential Revision: https://reviews.llvm.org/D32158
Patch by Andrei Elovikov <andrei.elovikov@intel.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300552 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Scalar/GVNHoist.cpp b/lib/Transforms/Scalar/GVNHoist.cpp
index 6adfe130d148b6e41ae488cb0f5e41d34dfea3da..b7514a6d579312d0b23aef248815dd5bc2e81ec6 100644 (file)
--- a/lib/Transforms/Scalar/GVNHoist.cpp
+++ b/lib/Transforms/Scalar/GVNHoist.cpp
@@ -45,6 +45,7 @@
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/SmallPtrSet.h"
 #include "llvm/ADT/Statistic.h"
+#include "llvm/Analysis/GlobalsModRef.h"
 #include "llvm/Analysis/MemorySSA.h"
 #include "llvm/Analysis/MemorySSAUpdater.h"
 #include "llvm/Analysis/ValueTracking.h"
@@ -1010,6 +1011,7 @@ public:
     AU.addRequired<MemorySSAWrapperPass>();
     AU.addPreserved<DominatorTreeWrapperPass>();
     AU.addPreserved<MemorySSAWrapperPass>();
+    AU.addPreserved<GlobalsAAWrapperPass>();
   }
 };
 } // namespace
@@ -1026,6 +1028,7 @@ PreservedAnalyses GVNHoistPass::run(Function &F, FunctionAnalysisManager &AM) {
   PreservedAnalyses PA;
   PA.preserve<DominatorTreeAnalysis>();
   PA.preserve<MemorySSAAnalysis>();
+  PA.preserve<GlobalsAA>();
   return PA;
 }