From 4c8f909cdf221195f1d306033a4f843c5a7ee81a Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Mon, 21 May 2012 17:41:28 +0000
Subject: [PATCH] Mark an unreachable region of code with llvm_unreachable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157197 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/Scalar/ObjCARC.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/Transforms/Scalar/ObjCARC.cpp b/lib/Transforms/Scalar/ObjCARC.cpp
index c4ab42d263f..15109b5bcea 100644
--- a/lib/Transforms/Scalar/ObjCARC.cpp
+++ b/lib/Transforms/Scalar/ObjCARC.cpp
@@ -3496,7 +3496,7 @@ void ObjCARCOpt::OptimizeWeakCalls(Function &F) {
           // No return value.
           break;
         default:
-          break;
+          llvm_unreachable("alloca really is used!");
         }
         UserInst->eraseFromParent();
       }