From 0a80c1240284c764c0f9cd043a2a18ff4152a203 Mon Sep 17 00:00:00 2001 From: Michael Gottesman Date: Sun, 7 Jul 2013 01:52:55 +0000 Subject: [objc-arc] Teach the ARC optimizer that objc_sync_enter/objc_sync_exit do not modify the ref count of an objc object and additionally are inert for modref purposes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185769 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/ObjCARC/ObjCARCUtil.cpp | 2 ++ 1 file changed, 2 insertions(+) (limited to 'lib/Transforms/ObjCARC/ObjCARCUtil.cpp') diff --git a/lib/Transforms/ObjCARC/ObjCARCUtil.cpp b/lib/Transforms/ObjCARC/ObjCARCUtil.cpp index 03e12d4fd7..415e76355d 100644 --- a/lib/Transforms/ObjCARC/ObjCARCUtil.cpp +++ b/lib/Transforms/ObjCARC/ObjCARCUtil.cpp @@ -112,6 +112,8 @@ InstructionClass llvm::objcarc::GetFunctionClass(const Function *F) { .Case("objc_retain_autorelease", IC_FusedRetainAutorelease) .Case("objc_retainAutorelease", IC_FusedRetainAutorelease) .Case("objc_retainAutoreleaseReturnValue",IC_FusedRetainAutoreleaseRV) + .Case("objc_sync_enter", IC_User) + .Case("objc_sync_exit", IC_User) .Default(IC_CallOrUser); // Argument is i8** -- cgit v1.2.3