From: Steven Wu <stevenwu@apple.com>
Date: Sat, 2 May 2015 00:56:15 +0000 (+0000)
Subject: Fix -fobjc-arc doesn't work with -save-temps
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d3728ad0ed926320f82c65404a2c7e1fe3c8aa52;p=clang

Fix -fobjc-arc doesn't work with -save-temps

The underlying problem is that there is currently no way to run
ObjCARCContract from llvm bitcode which is required by ObjC ARC.
This fix the problem by always enable ObjCARCContract pass if
optimization is enabled. The ObjCARC Contract pass has almost no
overhead on code that is not using ARC.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@236372 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/BackendUtil.cpp b/lib/CodeGen/BackendUtil.cpp
index 22ae565b38..c8894553bc 100644
--- a/lib/CodeGen/BackendUtil.cpp
+++ b/lib/CodeGen/BackendUtil.cpp
@@ -571,8 +571,7 @@ bool EmitAssemblyHelper::AddEmitPasses(BackendAction Action,
   // Add ObjC ARC final-cleanup optimizations. This is done as part of the
   // "codegen" passes so that it isn't run multiple times when there is
   // inlining happening.
-  if (LangOpts.ObjCAutoRefCount &&
-      CodeGenOpts.OptimizationLevel > 0)
+  if (CodeGenOpts.OptimizationLevel > 0)
     PM->add(createObjCARCContractPass());
 
   if (TM->addPassesToEmitFile(*PM, OS, CGFT,