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