1; RUN: llc -dwarf-version=4 -generate-type-units \ 2; RUN: -filetype=obj -O0 -mtriple=wasm32-unknown-unknown < %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=wasm32-unknown-unknown < %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= < %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= < %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; This test is derived from test/CodeGen/X86/dwarf-headers.ll 22 23; Looking for DWARF headers to be generated correctly. 24; There are 8 variants with 5 formats: v4 CU, v4 TU, v5 normal/partial CU, 25; v5 skeleton/split CU, v5 normal/split TU. Some v5 variants differ only 26; in the unit_type code, and the skeleton/split CU differs from normal/partial 27; by having one extra field (dwo_id). 28; (v2 thru v4 CUs are all the same, and TUs were invented in v4, 29; so we don't bother checking older versions.) 30 31; Test case built from: 32;struct S { 33; int s1; 34;}; 35; 36;S s; 37 38; Verify the v4 non-split headers. 39; Note that we check the exact offset of the DIEs because that tells us 40; the length of the header. 41; 42; SINGLE-4: .debug_info contents: 43; SINGLE-4: 0x00000000: Compile Unit: {{.*}} version = 0x0004, abbr_offset 44; SINGLE-4: 0x0000000b: DW_TAG_compile_unit 45; 46; SINGLE-4: .debug_types contents: 47; SINGLE-4: 0x00000000: Type Unit: {{.*}} version = 0x0004, abbr_offset 48; SINGLE-4: 0x00000017: DW_TAG_type_unit 49 50; Verify the v4 split headers. 51; 52; O-4: .debug_info contents: 53; O-4: 0x00000000: Compile Unit: {{.*}} version = 0x0004, abbr_offset 54; O-4: 0x0000000b: DW_TAG_compile_unit 55; 56; DWO-4: .debug_info.dwo contents: 57; DWO-4: 0x00000000: Compile Unit: {{.*}} version = 0x0004, abbr_offset 58; DWO-4: 0x0000000b: DW_TAG_compile_unit 59; 60; DWO-4: .debug_types.dwo contents: 61; DWO-4: 0x00000000: Type Unit: {{.*}} version = 0x0004, abbr_offset 62; DWO-4: 0x00000017: DW_TAG_type_unit 63 64; Verify the v5 non-split headers. Type units come first. 65; All .debug_info sections are reported in one go, but the offset resets for 66; each new section. 67; 68; SINGLE-5: .debug_info contents: 69; SINGLE-5: 0x00000000: Type Unit: {{.*}} version = 0x0005, unit_type = DW_UT_type, abbr_offset 70; SINGLE-5: 0x00000018: DW_TAG_type_unit 71; SINGLE-5-NOT: contents: 72; SINGLE-5: 0x00000000: Compile Unit: {{.*}} version = 0x0005, unit_type = DW_UT_compile, abbr_offset 73; SINGLE-5: 0x0000000c: DW_TAG_compile_unit 74 75; Verify the v5 split headers. 76; 77; O-5: .debug_info contents: 78; O-5: 0x00000000: Compile Unit: {{.*}} version = 0x0005, unit_type = DW_UT_skeleton, abbr_offset 79; O-5-SAME: DWO_id = 0xccd7e58ef8bf4aa6 80; O-5: 0x00000014: DW_TAG_skeleton_unit 81; 82; DWO-5: .debug_info.dwo contents: 83; DWO-5: 0x00000000: Type Unit: {{.*}} version = 0x0005, unit_type = DW_UT_split_type, abbr_offset 84; DWO-5: 0x00000018: DW_TAG_type_unit 85; DWO-5: 0x00000033: Compile Unit: {{.*}} version = 0x0005, unit_type = DW_UT_split_compile, abbr_offset 86; DWO-5-SAME: DWO_id = 0xccd7e58ef8bf4aa6 87; DWO-5: 0x00000047: DW_TAG_compile_unit 88 89 90; ModuleID = 't.cpp' 91source_filename = "t.cpp" 92target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" 93target triple = "wasm32-unknown-unknown-wasm" 94 95%struct.S = type { i32 } 96 97@s = global %struct.S zeroinitializer, align 4, !dbg !0 98 99!llvm.dbg.cu = !{!2} 100!llvm.module.flags = !{!10, !11} 101!llvm.ident = !{!12} 102 103!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 104!1 = distinct !DIGlobalVariable(name: "s", scope: !2, file: !3, line: 5, type: !6, isLocal: false, isDefinition: true) 105!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) 106!3 = !DIFile(filename: "t.cpp", directory: "/home/probinson/projects/scratch") 107!4 = !{} 108!5 = !{!0} 109!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S", file: !3, line: 1, size: 32, elements: !7, identifier: "_ZTS1S") 110!7 = !{!8} 111!8 = !DIDerivedType(tag: DW_TAG_member, name: "s1", scope: !6, file: !3, line: 2, baseType: !9, size: 32) 112!9 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 113!10 = !{i32 2, !"Dwarf Version", i32 4} 114!11 = !{i32 2, !"Debug Info Version", i32 3} 115!12 = !{!"clang version 5.0.0 (trunk 295942)"} 116