1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
; RUN: opt -objc-arc -S < %s | FileCheck %s
declare i8* @llvm.objc.initWeak(i8**, i8*)
declare i8* @llvm.objc.storeWeak(i8**, i8*)
declare i8* @llvm.objc.loadWeak(i8**)
declare void @llvm.objc.destroyWeak(i8**)
declare i8* @llvm.objc.loadWeakRetained(i8**)
declare void @llvm.objc.moveWeak(i8**, i8**)
declare void @llvm.objc.copyWeak(i8**, i8**)
; If the pointer-to-weak-pointer is null, it's undefined behavior.
; CHECK-LABEL: define void @test0(
; CHECK: store i8* undef, i8** null
; CHECK: store i8* undef, i8** null
; CHECK: store i8* undef, i8** null
; CHECK: store i8* undef, i8** null
; CHECK: store i8* undef, i8** null
; CHECK: store i8* undef, i8** null
; CHECK: store i8* undef, i8** null
; CHECK: store i8* undef, i8** null
; CHECK: store i8* undef, i8** null
; CHECK: store i8* undef, i8** null
; CHECK: store i8* undef, i8** null
; CHECK: store i8* undef, i8** null
; CHECK: store i8* undef, i8** null
; CHECK: store i8* undef, i8** null
; CHECK: store i8* undef, i8** null
; CHECK: store i8* undef, i8** null
; CHECK: store i8* undef, i8** null
; CHECK: store i8* undef, i8** null
; CHECK: ret void
define void @test0(i8* %p, i8** %q) {
entry:
call i8* @llvm.objc.storeWeak(i8** null, i8* %p)
call i8* @llvm.objc.storeWeak(i8** undef, i8* %p)
call i8* @llvm.objc.loadWeakRetained(i8** null)
call i8* @llvm.objc.loadWeakRetained(i8** undef)
call i8* @llvm.objc.loadWeak(i8** null)
call i8* @llvm.objc.loadWeak(i8** undef)
call i8* @llvm.objc.initWeak(i8** null, i8* %p)
call i8* @llvm.objc.initWeak(i8** undef, i8* %p)
call void @llvm.objc.destroyWeak(i8** null)
call void @llvm.objc.destroyWeak(i8** undef)
call void @llvm.objc.copyWeak(i8** null, i8** %q)
call void @llvm.objc.copyWeak(i8** undef, i8** %q)
call void @llvm.objc.copyWeak(i8** %q, i8** null)
call void @llvm.objc.copyWeak(i8** %q, i8** undef)
call void @llvm.objc.moveWeak(i8** null, i8** %q)
call void @llvm.objc.moveWeak(i8** undef, i8** %q)
call void @llvm.objc.moveWeak(i8** %q, i8** null)
call void @llvm.objc.moveWeak(i8** %q, i8** undef)
ret void
}
|
