From ebcaa31768c563782a6a2acee052450cb6497abe Mon Sep 17 00:00:00 2001
From: JF Bastien <jfbastien@apple.com>
Date: Thu, 9 Aug 2018 21:36:57 +0000
Subject: [PATCH] ConstantMerge: update MadeChange when change is made

It was always false, which is obviously wrong.

llvm-svn: 339390
---
 llvm/lib/Transforms/IPO/ConstantMerge.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/llvm/lib/Transforms/IPO/ConstantMerge.cpp b/llvm/lib/Transforms/IPO/ConstantMerge.cpp
index a6cfbb26e796..d2721c92b333 100644
--- a/llvm/lib/Transforms/IPO/ConstantMerge.cpp
+++ b/llvm/lib/Transforms/IPO/ConstantMerge.cpp
@@ -220,6 +220,7 @@ static bool mergeConstants(Module &M) {
       assert(Replacements[i].first->hasLocalLinkage() &&
              "Refusing to delete an externally visible global variable.");
       Replacements[i].first->eraseFromParent();
+      MadeChange = true;
     }
 
     NumMerged += Replacements.size();