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1; RUN: llc -dwarf-version=4 -generate-type-units \
2; RUN:     -filetype=obj -O0 -mtriple=x86_64-unknown-linux-gnu < %s \
3; RUN:     | llvm-dwarfdump -v - | FileCheck %s --check-prefix=SINGLE-4
4
5; RUN: llc -split-dwarf-file=foo.dwo -split-dwarf-output=%t.dwo \
6; RUN:     -dwarf-version=4 -generate-type-units \
7; RUN:     -filetype=obj -O0 -mtriple=x86_64-unknown-linux-gnu < %s \
8; RUN:     | llvm-dwarfdump -v - | FileCheck %s --check-prefix=O-4
9; RUN: llvm-dwarfdump -v %t.dwo | FileCheck %s --check-prefix=DWO-4
10
11; RUN: llc -dwarf-version=5 -generate-type-units \
12; RUN:     -filetype=obj -O0 -mtriple=x86_64-unknown-linux-gnu < %s \
13; RUN:     | llvm-dwarfdump -v - | FileCheck %s --check-prefix=SINGLE-5
14
15; RUN: llc -split-dwarf-file=foo.dwo -split-dwarf-output=%t.dwo \
16; RUN:     -dwarf-version=5 -generate-type-units \
17; RUN:     -filetype=obj -O0 -mtriple=x86_64-unknown-linux-gnu < %s \
18; RUN:     | llvm-dwarfdump -v - | FileCheck %s --check-prefix=O-5
19; RUN: llvm-dwarfdump -v %t.dwo | FileCheck %s --check-prefix=DWO-5
20
21; Looking for DWARF headers to be generated correctly.
22; There are 8 variants with 5 formats: v4 CU, v4 TU, v5 normal/partial CU,
23; v5 skeleton/split CU, v5 normal/split TU.  Some v5 variants differ only
24; in the unit_type code, and the skeleton/split CU differs from normal/partial
25; by having one extra field (dwo_id).
26; (v2 thru v4 CUs are all the same, and TUs were invented in v4,
27; so we don't bother checking older versions.)
28
29; Test case built from:
30;struct S {
31;  int s1;
32;};
33;
34;S s;
35
36; Verify the v4 non-split headers.
37; Note that we check the exact offset of the DIEs because that tells us
38; the length of the header.
39;
40; SINGLE-4: .debug_info contents:
41; SINGLE-4: 0x00000000: Compile Unit: {{.*}} version = 0x0004 abbr_offset
42; SINGLE-4: 0x0000000b: DW_TAG_compile_unit
43;
44; SINGLE-4: .debug_types contents:
45; SINGLE-4: 0x00000000: Type Unit: {{.*}} version = 0x0004 abbr_offset
46; SINGLE-4: 0x00000017: DW_TAG_type_unit
47
48; Verify the v4 split headers.
49;
50; O-4: .debug_info contents:
51; O-4: 0x00000000: Compile Unit: {{.*}} version = 0x0004 abbr_offset
52; O-4: 0x0000000b: DW_TAG_compile_unit
53;
54; DWO-4: .debug_info.dwo contents:
55; DWO-4: 0x00000000: Compile Unit: {{.*}} version = 0x0004 abbr_offset
56; DWO-4: 0x0000000b: DW_TAG_compile_unit
57;
58; DWO-4: .debug_types.dwo contents:
59; DWO-4: 0x00000000: Type Unit: {{.*}} version = 0x0004 abbr_offset
60; DWO-4: 0x00000017: DW_TAG_type_unit
61
62; Verify the v5 non-split headers.
63;
64; SINGLE-5: .debug_info contents:
65; SINGLE-5: 0x00000000: Compile Unit: {{.*}} version = 0x0005 unit_type = DW_UT_compile abbr_offset
66; SINGLE-5: 0x0000000c: DW_TAG_compile_unit
67;
68; FIXME: V5 wants type units in .debug_info not .debug_types.
69; SINGLE-5: .debug_types contents:
70; SINGLE-5: 0x00000000: Type Unit: {{.*}} version = 0x0005 unit_type = DW_UT_type abbr_offset
71; SINGLE-5: 0x00000018: DW_TAG_type_unit
72
73; Verify the v5 split headers.
74;
75; O-5: .debug_info contents:
76; O-5: 0x00000000: Compile Unit: {{.*}} version = 0x0005 unit_type = DW_UT_skeleton abbr_offset
77; O-5-SAME:        DWO_id = 0x4ed74084f749d96b
78; O-5: 0x00000014: DW_TAG_compile_unit
79;
80; DWO-5: .debug_info.dwo contents:
81; DWO-5: 0x00000000: Compile Unit: {{.*}} version = 0x0005 unit_type = DW_UT_split_compile abbr_offset
82; DWO-5-SAME:        DWO_id = 0x4ed74084f749d96b
83; DWO-5: 0x00000014: DW_TAG_compile_unit
84;
85; FIXME: V5 wants type units in .debug_info.dwo not .debug_types.dwo.
86; DWO-5: .debug_types.dwo contents:
87; DWO-5: 0x00000000: Type Unit: {{.*}} version = 0x0005 unit_type = DW_UT_split_type abbr_offset
88; DWO-5: 0x00000018: DW_TAG_type_unit
89
90
91; ModuleID = 't.cpp'
92source_filename = "t.cpp"
93target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
94target triple = "x86_64-unknown-linux-gnu"
95
96%struct.S = type { i32 }
97
98@s = global %struct.S zeroinitializer, align 4, !dbg !0
99
100!llvm.dbg.cu = !{!2}
101!llvm.module.flags = !{!10, !11}
102!llvm.ident = !{!12}
103
104!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
105!1 = distinct !DIGlobalVariable(name: "s", scope: !2, file: !3, line: 5, type: !6, isLocal: false, isDefinition: true)
106!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "clang version 5.0.0 (trunk 295942)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
107!3 = !DIFile(filename: "t.cpp", directory: "/home/probinson/projects/scratch")
108!4 = !{}
109!5 = !{!0}
110!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S", file: !3, line: 1, size: 32, elements: !7, identifier: "_ZTS1S")
111!7 = !{!8}
112!8 = !DIDerivedType(tag: DW_TAG_member, name: "s1", scope: !6, file: !3, line: 2, baseType: !9, size: 32)
113!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
114!10 = !{i32 2, !"Dwarf Version", i32 4}
115!11 = !{i32 2, !"Debug Info Version", i32 3}
116!12 = !{!"clang version 5.0.0 (trunk 295942)"}
117