From 4ae74cc99fb9d9c1f47cc7c5cd4c515bd53e2a19 Mon Sep 17 00:00:00 2001
From: Alina Sbirlea <asbirlea@google.com>
Date: Tue, 12 Nov 2019 14:07:32 -0800
Subject: [PATCH] [GVNHoist] Preserve AAResults.

Resolves PR38906, PR40898.
---
 llvm/lib/Transforms/Scalar/GVNHoist.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/llvm/lib/Transforms/Scalar/GVNHoist.cpp b/llvm/lib/Transforms/Scalar/GVNHoist.cpp
index c87e414..a343fb7 100644
--- a/llvm/lib/Transforms/Scalar/GVNHoist.cpp
+++ b/llvm/lib/Transforms/Scalar/GVNHoist.cpp
@@ -1168,6 +1168,7 @@ public:
     AU.addPreserved<DominatorTreeWrapperPass>();
     AU.addPreserved<MemorySSAWrapperPass>();
     AU.addPreserved<GlobalsAAWrapperPass>();
+    AU.addPreserved<AAResultsWrapperPass>();
   }
 };
 
-- 
2.7.4