From 7d9eb5884c34d0b6d9912d1f972327eedc62d60a Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Wed, 1 Apr 2009 01:43:03 +0000
Subject: fix a serious regression I introduced in my previous patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68173 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Bitcode/Reader/BitcodeReader.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'lib/Bitcode/Reader/BitcodeReader.cpp')

diff --git a/lib/Bitcode/Reader/BitcodeReader.cpp b/lib/Bitcode/Reader/BitcodeReader.cpp
index dfa215c2ed..dd9db8f436 100644
--- a/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -2067,7 +2067,8 @@ Module *BitcodeReader::materializeModule(std::string *ErrInfo) {
         if (CallInst* CI = dyn_cast<CallInst>(*UI++))
           UpgradeIntrinsicCall(CI, I->second);
       }
-      I->first->replaceAllUsesWith(I->second);
+      if (!I->first->use_empty())
+        I->first->replaceAllUsesWith(I->second);
       I->first->eraseFromParent();
     }
   }
-- 
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