1 ; RUN: opt -S -objc-arc -objc-arc-contract < %s | FileCheck %s
3 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
4 declare i8* @objc_unretainedObject(i8*)
5 declare i8* @objc_retainAutoreleasedReturnValue(i8*)
6 declare i8* @objc_autoreleaseReturnValue(i8*)
7 declare i8* @objc_msgSend(i8*, i8*, ...)
8 declare void @objc_release(i8*)
10 ; Test that the optimizer can create an objc_retainAutoreleaseReturnValue
11 ; declaration even if no objc_retain declaration exists.
14 ; CHECK: define i8* @test0(i8* %p) {
16 ; CHECK-NEXT: %0 = tail call i8* @objc_retainAutoreleaseReturnValue(i8* %p) nounwind
17 ; CHECK-NEXT: ret i8* %0
20 define i8* @test0(i8* %p) {
22 %call = tail call i8* @objc_unretainedObject(i8* %p)
23 %0 = tail call i8* @objc_retainAutoreleasedReturnValue(i8* %call) nounwind
24 %1 = tail call i8* @objc_autoreleaseReturnValue(i8* %0) nounwind
28 ; Properly create the @objc_retain declaration when it doesn't already exist.
32 ; CHECK: @objc_retain(
33 ; CHECK: @objc_retain(
34 ; CHECK: @objc_release(
35 ; CHECK: @objc_release(
37 define void @test1(i8* %call88) nounwind {
39 %tmp1 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call88) nounwind
40 %call94 = invoke i8* bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i8* (i8*)*)(i8* %tmp1)
41 to label %invoke.cont93 unwind label %lpad91
43 invoke.cont93: ; preds = %entry
44 %tmp2 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call94) nounwind
45 call void @objc_release(i8* %tmp1) nounwind
46 invoke void bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to void (i8*)*)(i8* %tmp2)
47 to label %invoke.cont102 unwind label %lpad100
49 invoke.cont102: ; preds = %invoke.cont93
50 call void @objc_release(i8* %tmp2) nounwind, !clang.imprecise_release !0
53 lpad91: ; preds = %entry
56 lpad100: ; preds = %invoke.cont93
57 call void @objc_release(i8* %tmp2) nounwind, !clang.imprecise_release !0