1; RUN: llc -dwarf-version=4 \ 2; RUN: -filetype=obj -O0 -mtriple=x86_64-unknown-windows-msvc < %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 \ 7; RUN: -filetype=obj -O0 -mtriple=x86_64-unknown-windows-msvc < %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; This test is derived from test/CodeGen/X86/dwarf-headers.ll 12 13; Looking for DWARF headers to be generated correctly. 14; There are 8 variants with 5 formats: v4 CU, v4 TU, v5 normal/partial CU, 15; v5 skeleton/split CU, v5 normal/split TU. Some v5 variants differ only 16; in the unit_type code, and the skeleton/split CU differs from normal/partial 17; by having one extra field (dwo_id). 18; (v2 thru v4 CUs are all the same, and TUs were invented in v4, 19; so we don't bother checking older versions.) 20 21; Test case built from: 22;struct S { 23; int s1; 24;}; 25; 26;S s; 27 28; Verify the v4 non-split headers. 29; Note that we check the exact offset of the DIEs because that tells us 30; the length of the header. 31; 32; SINGLE-4: .debug_info contents: 33; SINGLE-4: 0x00000000: Compile Unit: {{.*}} version = 0x0004, abbr_offset 34; SINGLE-4: 0x0000000b: DW_TAG_compile_unit 35 36; Verify the v4 split headers. 37; 38; O-4: .debug_info contents: 39; O-4: 0x00000000: Compile Unit: {{.*}} version = 0x0004, abbr_offset 40; O-4: 0x0000000b: DW_TAG_compile_unit 41; 42; DWO-4: .debug_info.dwo contents: 43; DWO-4: 0x00000000: Compile Unit: {{.*}} version = 0x0004, abbr_offset 44; DWO-4: 0x0000000b: DW_TAG_compile_unit 45 46 47; ModuleID = 't.cpp' 48source_filename = "t.cpp" 49target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 50target triple = "x86_64-unknown-windows-msvc" 51 52%struct.S = type { i32 } 53 54@"?s@@3US@@A" = dso_local global %struct.S zeroinitializer, align 4, !dbg !0 55 56!llvm.dbg.cu = !{!2} 57!llvm.module.flags = !{!9, !10, !11, !12, !13, !14} 58!llvm.ident = !{!15} 59 60!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression()) 61!1 = distinct !DIGlobalVariable(name: "s", linkageName: "?s@@3US@@A", scope: !2, file: !3, line: 5, type: !5, isLocal: false, isDefinition: true) 62!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !3, producer: "clang version 17.0.0 (https://github.com/llvm/llvm-project.git f1106ef6c9d14d5b516ec352279aeee8f9d12818)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, globals: !4, splitDebugInlining: false, nameTableKind: None) 63!3 = !DIFile(filename: "t.cpp", directory: "e:\\llvm-project\\foo") 64!4 = !{!0} 65!5 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "S", file: !3, line: 1, size: 32, flags: DIFlagTypePassByValue, elements: !6, identifier: ".?AUS@@") 66!6 = !{!7} 67!7 = !DIDerivedType(tag: DW_TAG_member, name: "s1", scope: !5, file: !3, line: 2, baseType: !8, size: 32) 68!8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) 69!9 = !{i32 7, !"Dwarf Version", i32 4} 70!10 = !{i32 2, !"Debug Info Version", i32 3} 71!11 = !{i32 1, !"wchar_size", i32 2} 72!12 = !{i32 8, !"PIC Level", i32 2} 73!13 = !{i32 7, !"uwtable", i32 2} 74!14 = !{i32 1, !"MaxTLSAlign", i32 65536} 75!15 = !{!"clang version 17.0.0 (https://github.com/llvm/llvm-project.git f1106ef6c9d14d5b516ec352279aeee8f9d12818)"} 76