From 9fbd318d36e618fb08fb53bb48b7c848e617a8a7 Mon Sep 17 00:00:00 2001
From: John McCall <rjmccall@apple.com>
Date: Wed, 15 Jun 2011 23:37:01 +0000
Subject: The ARC language-specific optimizer.  Credit to Dan Gohman.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133108 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/LLVMTargetMachine.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'lib/CodeGen/LLVMTargetMachine.cpp')

diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp
index 589d0a9a67..b98fbed695 100644
--- a/lib/CodeGen/LLVMTargetMachine.cpp
+++ b/lib/CodeGen/LLVMTargetMachine.cpp
@@ -303,6 +303,10 @@ bool LLVMTargetMachine::addCommonCodeGenPasses(PassManagerBase &PM,
   if (!DisableVerify)
     PM.add(createVerifierPass());
 
+  // Simplify ObjC ARC code. This is done late because it makes re-optimization
+  // difficult.
+  PM.add(createObjCARCContractPass());
+
   // Run loop strength reduction before anything else.
   if (OptLevel != CodeGenOpt::None && !DisableLSR) {
     PM.add(createLoopStrengthReducePass(getTargetLowering()));
-- 
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