xref: /llvm-project/llvm/test/DebugInfo/X86/block-capture.ll (revision 5ee088134fb87f7d716c58fa65beb11fb6afcb22) 
1; RUN: llc %s -o %t -filetype=obj
2; RUN: llvm-dwarfdump -v -debug-info %t | FileCheck %s
3
4; RUN: llc --try-experimental-debuginfo-iterators %s -o %t -filetype=obj
5; RUN: llvm-dwarfdump -v -debug-info %t | FileCheck %s
6
7; Checks that we emit debug info for the block variable declare.
8; CHECK: DW_TAG_subprogram
9; CHECK: DW_TAG_variable
10; CHECK-NEXT: DW_AT_location [DW_FORM_block1] (DW_OP_fbreg +8, DW_OP_deref, DW_OP_plus_uconst 0x20)
11; CHECK-NEXT: DW_AT_name {{.*}} "block"
12
13; Extracted from the clang output for:
14; void foo() {
15;  void (^block)() = ^{ block(); };
16; }
17
18; ModuleID = 'foo.m'
19target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
20target triple = "x86_64-apple-darwin"
21
22%struct.__block_descriptor = type { i64, i64 }
23%struct.__block_literal_generic = type { ptr, i32, i32, ptr, ptr }
24
25@_NSConcreteStackBlock = external global ptr
26@.str = private unnamed_addr constant [6 x i8] c"v8@?0\00", align 1
27
28; Function Attrs: nounwind readnone
29declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
30
31; Function Attrs: ssp uwtable
32define internal void @__foo_block_invoke(ptr %.block_descriptor) #2 !dbg !8 {
33entry:
34  %.block_descriptor.addr = alloca ptr, align 8
35  %block.addr = alloca ptr, align 8
36  store ptr %.block_descriptor, ptr %.block_descriptor.addr, align 8
37  %0 = load ptr, ptr %.block_descriptor.addr
38  call void @llvm.dbg.value(metadata ptr %0, metadata !47, metadata !43), !dbg !66
39  call void @llvm.dbg.declare(metadata ptr %.block_descriptor, metadata !47, metadata !43), !dbg !66
40  store ptr %.block_descriptor, ptr %block.addr, align 8
41  call void @llvm.dbg.declare(metadata ptr %block.addr, metadata !68, metadata !69), !dbg !70
42  %block.capture.addr = getelementptr inbounds <{ ptr, i32, i32, ptr, ptr, ptr }>, ptr %.block_descriptor, i32 0, i32 5, !dbg !71
43  %1 = load ptr, ptr %block.capture.addr, align 8, !dbg !71
44  %2 = getelementptr inbounds %struct.__block_literal_generic, ptr %1, i32 0, i32 3, !dbg !71
45  %3 = load ptr, ptr %2, !dbg !71
46  call void (ptr, ...) %3(ptr %1), !dbg !71
47  ret void, !dbg !73
48}
49
50; Function Attrs: nounwind readnone
51declare void @llvm.dbg.value(metadata, metadata, metadata) #1
52
53
54attributes #0 = { nounwind ssp uwtable }
55attributes #1 = { nounwind readnone }
56attributes #2 = { ssp uwtable }
57attributes #3 = { nounwind }
58
59!llvm.dbg.cu = !{!0}
60!llvm.module.flags = !{!16, !17, !18, !19, !20, !21, !22}
61!llvm.ident = !{!23}
62
63!0 = distinct !DICompileUnit(language: DW_LANG_ObjC, producer: "clang version 3.6.0 (trunk 223471)", isOptimized: false, runtimeVersion: 2, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
64!1 = !DIFile(filename: "foo.m", directory: "")
65!2 = !{}
66!5 = !DIFile(filename: "foo.m", directory: "")
67!6 = !DISubroutineType(types: !7)
68!7 = !{null}
69!8 = distinct !DISubprogram(name: "__foo_block_invoke", line: 2, isLocal: true, isDefinition: true, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 2, file: !1, scope: !5, type: !9, retainedNodes: !2)
70!9 = !DISubroutineType(types: !10)
71!10 = !{null, !11}
72!11 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: null)
73!13 = !DISubroutineType(types: !14)
74!14 = !{null, !11, !11}
75!16 = !{i32 1, !"Objective-C Version", i32 2}
76!17 = !{i32 1, !"Objective-C Image Info Version", i32 0}
77!18 = !{i32 1, !"Objective-C Image Info Section", !"__DATA, __objc_imageinfo, regular, no_dead_strip"}
78!19 = !{i32 4, !"Objective-C Garbage Collection", i32 0}
79!20 = !{i32 2, !"Dwarf Version", i32 2}
80!21 = !{i32 2, !"Debug Info Version", i32 3}
81!22 = !{i32 1, !"PIC Level", i32 2}
82!23 = !{!"clang version 3.6.0 (trunk 223471)"}
83!25 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !26)
84!26 = !DICompositeType(tag: DW_TAG_structure_type, name: "__block_literal_generic", line: 2, size: 256, flags: DIFlagAppleBlock, file: !1, scope: !5, elements: !27)
85!27 = !{!28, !29, !31, !32, !36}
86!28 = !DIDerivedType(tag: DW_TAG_member, name: "__isa", size: 64, align: 64, file: !1, scope: !5, baseType: !11)
87!29 = !DIDerivedType(tag: DW_TAG_member, name: "__flags", size: 32, align: 32, offset: 64, file: !1, scope: !5, baseType: !30)
88!30 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
89!31 = !DIDerivedType(tag: DW_TAG_member, name: "__reserved", size: 32, align: 32, offset: 96, file: !1, scope: !5, baseType: !30)
90!32 = !DIDerivedType(tag: DW_TAG_member, name: "__FuncPtr", size: 64, align: 64, offset: 128, file: !1, scope: !5, baseType: !33)
91!33 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !34)
92!34 = !DISubroutineType(types: !35)
93!35 = !{null, null}
94!36 = !DIDerivedType(tag: DW_TAG_member, name: "__descriptor", line: 2, size: 64, align: 64, offset: 192, file: !1, scope: !5, baseType: !37)
95!37 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !38)
96!38 = !DICompositeType(tag: DW_TAG_structure_type, name: "__block_descriptor", line: 2, size: 128, flags: DIFlagAppleBlock, file: !1, scope: !5, elements: !39)
97!39 = !{!40, !42}
98!40 = !DIDerivedType(tag: DW_TAG_member, name: "reserved", size: 64, align: 64, file: !1, scope: !5, baseType: !41)
99!41 = !DIBasicType(tag: DW_TAG_base_type, name: "long unsigned int", size: 64, align: 64, encoding: DW_ATE_unsigned)
100!42 = !DIDerivedType(tag: DW_TAG_member, name: "Size", size: 64, align: 64, offset: 64, file: !1, scope: !5, baseType: !41)
101!43 = !DIExpression()
102!47 = !DILocalVariable(name: ".block_descriptor", line: 2, arg: 1, flags: DIFlagArtificial, scope: !8, file: !5, type: !48)
103!48 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, baseType: !49)
104!49 = !DICompositeType(tag: DW_TAG_structure_type, name: "__block_literal_1", line: 2, size: 320, align: 64, file: !1, scope: !5, elements: !50)
105!50 = !{!51, !52, !53, !54, !56, !65}
106!51 = !DIDerivedType(tag: DW_TAG_member, name: "__isa", line: 2, size: 64, align: 64, flags: DIFlagPublic, file: !1, scope: !5, baseType: !11)
107!52 = !DIDerivedType(tag: DW_TAG_member, name: "__flags", line: 2, size: 32, align: 32, offset: 64, flags: DIFlagPublic, file: !1, scope: !5, baseType: !30)
108!53 = !DIDerivedType(tag: DW_TAG_member, name: "__reserved", line: 2, size: 32, align: 32, offset: 96, flags: DIFlagPublic, file: !1, scope: !5, baseType: !30)
109!54 = !DIDerivedType(tag: DW_TAG_member, name: "__FuncPtr", line: 2, size: 64, align: 64, offset: 128, flags: DIFlagPublic, file: !1, scope: !5, baseType: !55)
110!55 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !6)
111!56 = !DIDerivedType(tag: DW_TAG_member, name: "__descriptor", line: 2, size: 64, align: 64, offset: 192, flags: DIFlagPublic, file: !1, scope: !5, baseType: !57)
112!57 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !58)
113!58 = !DICompositeType(tag: DW_TAG_structure_type, name: "__block_descriptor_withcopydispose", line: 2, size: 256, align: 64, file: !1, elements: !59)
114!59 = !{!60, !61, !62, !64}
115!60 = !DIDerivedType(tag: DW_TAG_member, name: "reserved", line: 2, size: 64, align: 64, file: !1, scope: !58, baseType: !41)
116!61 = !DIDerivedType(tag: DW_TAG_member, name: "Size", line: 2, size: 64, align: 64, offset: 64, file: !1, scope: !58, baseType: !41)
117!62 = !DIDerivedType(tag: DW_TAG_member, name: "CopyFuncPtr", line: 2, size: 64, align: 64, offset: 128, file: !1, scope: !58, baseType: !63)
118!63 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !11)
119!64 = !DIDerivedType(tag: DW_TAG_member, name: "DestroyFuncPtr", line: 2, size: 64, align: 64, offset: 192, file: !1, scope: !58, baseType: !63)
120!65 = !DIDerivedType(tag: DW_TAG_member, name: "block", line: 2, size: 64, align: 64, offset: 256, flags: DIFlagPublic, file: !1, scope: !5, baseType: !25)
121!66 = !DILocation(line: 2, column: 20, scope: !8)
122!67 = !DILocation(line: 2, column: 21, scope: !8)
123!68 = !DILocalVariable(name: "block", line: 2, scope: !8, file: !5, type: !25)
124!69 = !DIExpression(DW_OP_deref, DW_OP_plus_uconst, 32)
125!70 = !DILocation(line: 2, column: 9, scope: !8)
126!71 = !DILocation(line: 2, column: 23, scope: !72)
127!72 = distinct !DILexicalBlock(line: 2, column: 21, file: !1, scope: !8)
128!73 = !DILocation(line: 2, column: 32, scope: !8)
129