From e4aee1d3a4677cadc0596d989b5a28ef21ab9a0b Mon Sep 17 00:00:00 2001
From: Jeff Cohen <jeffc@jolt-lang.org>
Date: Sat, 14 Apr 2007 16:55:19 +0000
Subject: [PATCH] Fix recent regression that broke several llvm-tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35996 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/IPO/ConstantMerge.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/Transforms/IPO/ConstantMerge.cpp b/lib/Transforms/IPO/ConstantMerge.cpp
index fc142e16d22..84e49116ff4 100644
--- a/lib/Transforms/IPO/ConstantMerge.cpp
+++ b/lib/Transforms/IPO/ConstantMerge.cpp
@@ -66,6 +66,8 @@ bool ConstantMerge::runOnModule(Module &M) {
       GV->removeDeadConstantUsers();
       if (GV->use_empty() && GV->hasInternalLinkage()) {
         (GV++)->eraseFromParent();
+        if (GV == E)
+          break;
       }
       
       // Only process constants with initializers.