xref: /llvm-project/llvm/test/Transforms/ObjCARC/ensure-that-exception-unwind-path-is-visited.ll (revision 094572701dce4aaf36f4521d6cf750420d39f206) 
1; RUN: opt -passes=objc-arc -S < %s | FileCheck %s
2; rdar://11744105
3; bugzilla://14584
4
5target 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-S128"
6target triple = "x86_64-apple-macosx10.9.0"
7
8%0 = type opaque
9%struct._class_t = type { ptr, ptr, ptr, ptr, ptr }
10%struct._objc_cache = type opaque
11%struct._class_ro_t = type { i32, i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, ptr }
12%struct.__method_list_t = type { i32, i32, [0 x %struct._objc_method] }
13%struct._objc_method = type { ptr, ptr, ptr }
14%struct._objc_protocol_list = type { i64, [0 x ptr] }
15%struct._protocol_t = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, i32, i32, ptr }
16%struct._prop_list_t = type { i32, i32, [0 x %struct._prop_t] }
17%struct._prop_t = type { ptr, ptr }
18%struct._ivar_list_t = type { i32, i32, [0 x %struct._ivar_t] }
19%struct._ivar_t = type { ptr, ptr, ptr, i32, i32 }
20%struct.NSConstantString = type { ptr, i32, ptr, i64 }
21
22@"OBJC_CLASS_$_NSObject" = external global %struct._class_t
23@"\01L_OBJC_CLASSLIST_REFERENCES_$_" = internal global ptr @"OBJC_CLASS_$_NSObject", section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
24@"\01L_OBJC_METH_VAR_NAME_" = internal global [4 x i8] c"new\00", section "__TEXT,__objc_methname,cstring_literals", align 1
25@"\01L_OBJC_SELECTOR_REFERENCES_" = internal global ptr @"\01L_OBJC_METH_VAR_NAME_", section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
26@__CFConstantStringClassReference = external global [0 x i32]
27@.str = private unnamed_addr constant [11 x i8] c"Failed: %@\00", align 1
28@_unnamed_cfstring_ = private constant %struct.NSConstantString { ptr @__CFConstantStringClassReference, i32 1992, ptr @.str, i64 10 }, section "__DATA,__cfstring"
29@"OBJC_CLASS_$_NSException" = external global %struct._class_t
30@"\01L_OBJC_CLASSLIST_REFERENCES_$_1" = internal global ptr @"OBJC_CLASS_$_NSException", section "__DATA, __objc_classrefs, regular, no_dead_strip", align 8
31@.str2 = private unnamed_addr constant [4 x i8] c"Foo\00", align 1
32@_unnamed_cfstring_3 = private constant %struct.NSConstantString { ptr @__CFConstantStringClassReference, i32 1992, ptr @.str2, i64 3 }, section "__DATA,__cfstring"
33@"\01L_OBJC_METH_VAR_NAME_4" = internal global [14 x i8] c"raise:format:\00", section "__TEXT,__objc_methname,cstring_literals", align 1
34@"\01L_OBJC_SELECTOR_REFERENCES_5" = internal global ptr @"\01L_OBJC_METH_VAR_NAME_4", section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
35@llvm.used = appending global [6 x ptr] [ptr @"\01L_OBJC_CLASSLIST_REFERENCES_$_", ptr @"\01L_OBJC_METH_VAR_NAME_", ptr @"\01L_OBJC_SELECTOR_REFERENCES_", ptr @"\01L_OBJC_CLASSLIST_REFERENCES_$_1", ptr @"\01L_OBJC_METH_VAR_NAME_4", ptr @"\01L_OBJC_SELECTOR_REFERENCES_5"], section "llvm.metadata"
36
37define i32 @main() uwtable ssp personality ptr @__objc_personality_v0 !dbg !5 {
38entry:
39  %tmp = load ptr, ptr @"\01L_OBJC_CLASSLIST_REFERENCES_$_", align 8, !dbg !37
40  %tmp1 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_", align 8, !dbg !37, !invariant.load !38
41; CHECK: call ptr @objc_msgSend(ptr %tmp, ptr %tmp1)
42  %call = call ptr @objc_msgSend(ptr %tmp, ptr %tmp1), !dbg !37, !clang.arc.no_objc_arc_exceptions !38
43  call void @llvm.dbg.value(metadata ptr %call, metadata !25, metadata !DIExpression()), !dbg !37
44; CHECK: call ptr @llvm.objc.retain(ptr %call) [[NUW:#[0-9]+]]
45  %tmp3 = call ptr @llvm.objc.retain(ptr %call) nounwind, !dbg !39
46  call void @llvm.dbg.value(metadata ptr %call, metadata !25, metadata !DIExpression()), !dbg !39
47  invoke fastcc void @ThrowFunc(ptr %call)
48          to label %eh.cont unwind label %lpad, !dbg !40, !clang.arc.no_objc_arc_exceptions !38
49
50eh.cont:                                          ; preds = %entry
51; CHECK: call void @llvm.objc.release(ptr %call)
52  call void @llvm.objc.release(ptr %call) nounwind, !dbg !42, !clang.imprecise_release !38
53  br label %if.end, !dbg !43
54
55lpad:                                             ; preds = %entry
56  %tmp4 = landingpad { ptr, i32 }
57          catch ptr null, !dbg !40
58  %tmp5 = extractvalue { ptr, i32 } %tmp4, 0, !dbg !40
59  %exn.adjusted = call ptr @llvm.objc.begin_catch(ptr %tmp5) nounwind, !dbg !44
60  call void @llvm.dbg.value(metadata i8 0, metadata !21, metadata !DIExpression()), !dbg !46
61  call void @llvm.objc.end_catch(), !dbg !49, !clang.arc.no_objc_arc_exceptions !38
62; CHECK: call void @llvm.objc.release(ptr %call)
63  call void @llvm.objc.release(ptr %call) nounwind, !dbg !42, !clang.imprecise_release !38
64  call void (ptr, ...) @NSLog(ptr @_unnamed_cfstring_, ptr %call), !dbg !50, !clang.arc.no_objc_arc_exceptions !38
65  br label %if.end, !dbg !52
66
67if.end:                                           ; preds = %lpad, %eh.cont
68  call void (ptr, ...) @NSLog(ptr @_unnamed_cfstring_, ptr %call), !dbg !53, !clang.arc.no_objc_arc_exceptions !38
69; CHECK: call void @llvm.objc.release(ptr %call)
70  call void @llvm.objc.release(ptr %call) nounwind, !dbg !54, !clang.imprecise_release !38
71  ret i32 0, !dbg !54
72}
73
74declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
75
76declare ptr @objc_msgSend(ptr, ptr, ...) nonlazybind
77
78declare ptr @llvm.objc.retain(ptr) nonlazybind
79
80declare ptr @llvm.objc.begin_catch(ptr)
81
82declare void @llvm.objc.end_catch()
83
84declare void @llvm.objc.exception_rethrow()
85
86define internal fastcc void @ThrowFunc(ptr %obj) uwtable noinline ssp !dbg !27 {
87entry:
88  %tmp = call ptr @llvm.objc.retain(ptr %obj) nounwind
89  call void @llvm.dbg.value(metadata ptr %obj, metadata !32, metadata !DIExpression()), !dbg !55
90  %tmp1 = load ptr, ptr @"\01L_OBJC_CLASSLIST_REFERENCES_$_1", align 8, !dbg !56
91  %tmp2 = load ptr, ptr @"\01L_OBJC_SELECTOR_REFERENCES_5", align 8, !dbg !56, !invariant.load !38
92  call void (ptr, ptr, ptr, ptr, ...) @objc_msgSend(ptr %tmp1, ptr %tmp2, ptr @_unnamed_cfstring_3, ptr @_unnamed_cfstring_3), !dbg !56, !clang.arc.no_objc_arc_exceptions !38
93  call void @llvm.objc.release(ptr %obj) nounwind, !dbg !58, !clang.imprecise_release !38
94  ret void, !dbg !58
95}
96
97declare i32 @__objc_personality_v0(...)
98
99declare void @llvm.objc.release(ptr) nonlazybind
100
101declare void @NSLog(ptr, ...)
102
103declare void @llvm.dbg.value(metadata, metadata, metadata) nounwind readnone
104
105; CHECK: attributes #0 = { ssp uwtable }
106; CHECK: attributes #1 = { nonlazybind }
107; CHECK: attributes [[NUW]] = { nounwind }
108; CHECK: attributes #3 = { noinline ssp uwtable }
109
110!llvm.dbg.cu = !{!0}
111!llvm.module.flags = !{!33, !34, !35, !36, !61}
112
113!0 = distinct !DICompileUnit(language: DW_LANG_ObjC, producer: "clang version 3.3 ", isOptimized: true, runtimeVersion: 2, emissionKind: FullDebug, file: !60, enums: !1, retainedTypes: !1, globals: !1)
114!1 = !{}
115!5 = distinct !DISubprogram(name: "main", line: 9, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !0, scopeLine: 10, file: !60, scope: !6, type: !7, retainedNodes: !11)
116!6 = !DIFile(filename: "test.m", directory: "/Volumes/Files/gottesmmcab/Radar/12906997")
117!7 = !DISubroutineType(types: !8)
118!8 = !{!9}
119!9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
120!11 = !{!12, !21, !25}
121!12 = !DILocalVariable(name: "obj", line: 11, scope: !13, file: !6, type: !14)
122!13 = distinct !DILexicalBlock(line: 10, column: 0, file: !60, scope: !5)
123!14 = !DIDerivedType(tag: DW_TAG_typedef, name: "id", line: 11, file: !60, baseType: !15)
124!15 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, file: !60, baseType: !16)
125!16 = !DICompositeType(tag: DW_TAG_structure_type, name: "objc_object", file: !60, elements: !17)
126!17 = !{!18}
127!18 = !DIDerivedType(tag: DW_TAG_member, name: "isa", size: 64, file: !60, scope: !16, baseType: !19)
128!19 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !20)
129!20 = !DICompositeType(tag: DW_TAG_structure_type, name: "objc_class", flags: DIFlagFwdDecl, file: !60)
130!21 = !DILocalVariable(name: "ok", line: 13, scope: !22, file: !6, type: !23)
131!22 = distinct !DILexicalBlock(line: 12, column: 0, file: !60, scope: !13)
132!23 = !DIDerivedType(tag: DW_TAG_typedef, name: "BOOL", line: 62, file: !60, baseType: !24)
133!24 = !DIBasicType(tag: DW_TAG_base_type, name: "signed char", size: 8, align: 8, encoding: DW_ATE_signed_char)
134!25 = !DILocalVariable(name: "obj2", line: 15, scope: !26, file: !6, type: !14)
135!26 = distinct !DILexicalBlock(line: 14, column: 0, file: !60, scope: !22)
136!27 = distinct !DISubprogram(name: "ThrowFunc", line: 4, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 5, file: !60, scope: !6, type: !28, retainedNodes: !31)
137!28 = !DISubroutineType(types: !29)
138!29 = !{null, !14}
139!31 = !{!32}
140!32 = !DILocalVariable(name: "obj", line: 4, arg: 1, scope: !27, file: !6, type: !14)
141!33 = !{i32 1, !"Objective-C Version", i32 2}
142!34 = !{i32 1, !"Objective-C Image Info Version", i32 0}
143!35 = !{i32 1, !"Objective-C Image Info Section", !"__DATA, __objc_imageinfo, regular, no_dead_strip"}
144!36 = !{i32 4, !"Objective-C Garbage Collection", i32 0}
145!37 = !DILocation(line: 11, scope: !13)
146!38 = !{}
147!39 = !DILocation(line: 15, scope: !26)
148!40 = !DILocation(line: 17, scope: !41)
149!41 = distinct !DILexicalBlock(line: 16, column: 0, file: !60, scope: !26)
150!42 = !DILocation(line: 22, scope: !26)
151!43 = !DILocation(line: 23, scope: !22)
152!44 = !DILocation(line: 19, scope: !41)
153!45 = !{i8 0}
154!46 = !DILocation(line: 20, scope: !47)
155!47 = distinct !DILexicalBlock(line: 19, column: 0, file: !60, scope: !48)
156!48 = distinct !DILexicalBlock(line: 19, column: 0, file: !60, scope: !26)
157!49 = !DILocation(line: 21, scope: !47)
158!50 = !DILocation(line: 24, scope: !51)
159!51 = distinct !DILexicalBlock(line: 23, column: 0, file: !60, scope: !22)
160!52 = !DILocation(line: 25, scope: !51)
161!53 = !DILocation(line: 27, scope: !13)
162!54 = !DILocation(line: 28, scope: !13)
163!55 = !DILocation(line: 4, scope: !27)
164!56 = !DILocation(line: 6, scope: !57)
165!57 = distinct !DILexicalBlock(line: 5, column: 0, file: !60, scope: !27)
166!58 = !DILocation(line: 7, scope: !57)
167!60 = !DIFile(filename: "test.m", directory: "/Volumes/Files/gottesmmcab/Radar/12906997")
168!61 = !{i32 1, !"Debug Info Version", i32 3}
169