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; RUN: opt -passes=objc-arc -S %s | FileCheck %s
%0 = type opaque
; Make sure ARC optimizer doesn't sink @obj_retain past @llvm.objc.clang.arc.use.
; CHECK: call ptr @llvm.objc.retain
; CHECK: call void (...) @llvm.objc.clang.arc.use(
; CHECK: call ptr @llvm.objc.retain
; CHECK: call void (...) @llvm.objc.clang.arc.use(
define void @runTest() local_unnamed_addr {
%1 = alloca ptr, align 8
%2 = alloca ptr, align 8
%3 = tail call ptr @foo0()
%4 = tail call ptr @llvm.objc.retainAutoreleasedReturnValue(ptr %3)
store ptr %3, ptr %1, align 8
call void @foo1(ptr nonnull %1)
%5 = load ptr, ptr %1, align 8
%6 = call ptr @llvm.objc.retain(ptr %5)
call void (...) @llvm.objc.clang.arc.use(ptr %3)
call void @llvm.objc.release(ptr %3)
store ptr %5, ptr %2, align 8
call void @foo1(ptr nonnull %2)
%7 = load ptr, ptr %2, align 8
%8 = call ptr @llvm.objc.retain(ptr %7)
call void (...) @llvm.objc.clang.arc.use(ptr %5)
%tmp1 = load ptr, ptr %2, align 8
call void @llvm.objc.release(ptr %5)
call void @foo2(ptr %7)
call void @llvm.objc.release(ptr %7)
ret void
}
declare ptr @foo0() local_unnamed_addr
declare void @foo1(ptr) local_unnamed_addr
declare void @foo2(ptr) local_unnamed_addr
declare ptr @llvm.objc.retainAutoreleasedReturnValue(ptr) local_unnamed_addr
declare ptr @llvm.objc.retain(ptr) local_unnamed_addr
declare void @llvm.objc.clang.arc.use(...) local_unnamed_addr
declare void @llvm.objc.release(ptr) local_unnamed_addr
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