1; RUN: llc --filetype=obj -o %t < %s 2; RUN: llvm-dwarfdump --debug-info %t | FileCheck %s 3; RUN: llvm-dwarfdump --verify %t 4 5; This file was based on output of 6; 7; clang -target msp430 -S -emit-llvm -gdwarf-3 -Os dwarf-basics.c 8; 9; for the following dwarf-basics.c 10; 11; struct X { 12; void *a; 13; }; 14; 15; int f(long y, struct X *p) 16; { 17; return 42; 18; } 19; 20 21; CHECK: file format elf32-msp430 22 23; CHECK: .debug_info contents: 24; CHECK: Compile Unit: length = 0x{{.*}}, format = DWARF32, version = 0x0003, abbr_offset = 0x0000, addr_size = 0x02 (next unit at 0x{{.*}}) 25 26; CHECK: DW_TAG_compile_unit 27; CHECK: DW_AT_producer ("clang version 11.0.0 (git@...)") 28; CHECK: DW_AT_language (DW_LANG_C99) 29; CHECK: DW_AT_name ("dwarf-basics.c") 30; CHECK: DW_AT_stmt_list (0x{{.*}}) 31; CHECK: DW_AT_comp_dir ("/tmp") 32; CHECK: DW_AT_low_pc (0x{{.*}}) 33; CHECK: DW_AT_high_pc (0x{{.*}}) 34 35; CHECK: DW_TAG_subprogram 36; CHECK: DW_AT_low_pc (0x{{.*}}) 37; CHECK: DW_AT_high_pc (0x{{.*}}) 38; CHECK: DW_AT_frame_base (DW_OP_reg1 SPB) 39; CHECK: DW_AT_name ("f") 40; CHECK: DW_AT_decl_file ("/tmp{{[/\\]}}dwarf-basics.c") 41; CHECK: DW_AT_decl_line (5) 42; CHECK: DW_AT_prototyped (0x01) 43; CHECK: DW_AT_type (0x{{.*}} "int") 44; CHECK: DW_AT_external (0x01) 45 46; CHECK: DW_TAG_formal_parameter 47; CHECK: DW_AT_location (0x{{.*}}: 48; CHECK: [0x0000, 0x0004): DW_OP_reg12 R12B) 49; CHECK: DW_AT_name ("y") 50; CHECK: DW_AT_decl_file ("/tmp{{[/\\]}}dwarf-basics.c") 51; CHECK: DW_AT_decl_line (5) 52; CHECK: DW_AT_type (0x{{.*}} "long int") 53 54; CHECK: DW_TAG_formal_parameter 55; CHECK: DW_AT_location (DW_OP_reg14 R14B) 56; CHECK: DW_AT_name ("p") 57; CHECK: DW_AT_decl_file ("/tmp{{[/\\]}}dwarf-basics.c") 58; CHECK: DW_AT_decl_line (5) 59; CHECK: DW_AT_type (0x{{.*}} "X*") 60 61; CHECK: NULL 62 63; CHECK: DW_TAG_base_type 64; CHECK: DW_AT_name ("int") 65; CHECK: DW_AT_encoding (DW_ATE_signed) 66; CHECK: DW_AT_byte_size (0x02) 67 68; CHECK: DW_TAG_base_type 69; CHECK: DW_AT_name ("long int") 70; CHECK: DW_AT_encoding (DW_ATE_signed) 71; CHECK: DW_AT_byte_size (0x04) 72 73; CHECK: DW_TAG_pointer_type 74; CHECK: DW_AT_type (0x{{.*}} "X") 75 76; CHECK: DW_TAG_structure_type 77; CHECK: DW_AT_name ("X") 78; CHECK: DW_AT_byte_size (0x02) 79; CHECK: DW_AT_decl_file ("/tmp{{[/\\]}}dwarf-basics.c") 80; CHECK: DW_AT_decl_line (1) 81 82; CHECK: DW_TAG_member 83; CHECK: DW_AT_name ("a") 84; CHECK: DW_AT_type (0x{{.*}} "*") 85; CHECK: DW_AT_decl_file ("/tmp{{[/\\]}}dwarf-basics.c") 86; CHECK: DW_AT_decl_line (2) 87; CHECK: DW_AT_data_member_location (0) 88 89; CHECK: NULL 90 91; CHECK: DW_TAG_pointer_type 92 93; CHECK: NULL 94 95 96source_filename = "dwarf-basics.c" 97target datalayout = "e-m:e-p:16:16-i32:16-i64:16-f32:16-f64:16-a:8-n8:16-S16" 98target triple = "msp430" 99 100%struct.X = type { i8* } 101 102define i16 @f(i32 %y, %struct.X* %p) !dbg !7 { 103entry: 104 call void @llvm.dbg.value(metadata i32 %y, metadata !18, metadata !DIExpression()), !dbg !20 105 call void @llvm.dbg.value(metadata %struct.X* %p, metadata !19, metadata !DIExpression()), !dbg !20 106 ret i16 42, !dbg !21 107} 108 109declare void @llvm.dbg.value(metadata, metadata, metadata) 110 111!llvm.dbg.cu = !{!0} 112!llvm.module.flags = !{!3, !4, !5} 113!llvm.ident = !{!6} 114 115!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 11.0.0 (git@...)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None) 116!1 = !DIFile(filename: "dwarf-basics.c", directory: "/tmp") 117!2 = !{} 118!3 = !{i32 7, !"Dwarf Version", i32 3} 119!4 = !{i32 2, !"Debug Info Version", i32 3} 120!5 = !{i32 1, !"wchar_size", i32 2} 121!6 = !{!"clang version 11.0.0 (git@...)"} 122!7 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 5, type: !8, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !17) 123!8 = !DISubroutineType(types: !9) 124!9 = !{!10, !11, !12} 125!10 = !DIBasicType(name: "int", size: 16, encoding: DW_ATE_signed) 126!11 = !DIBasicType(name: "long int", size: 32, encoding: DW_ATE_signed) 127!12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 16) 128!13 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "X", file: !1, line: 1, size: 16, elements: !14) 129!14 = !{!15} 130!15 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !13, file: !1, line: 2, baseType: !16, size: 16) 131!16 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 16) 132!17 = !{!18, !19} 133!18 = !DILocalVariable(name: "y", arg: 1, scope: !7, file: !1, line: 5, type: !11) 134!19 = !DILocalVariable(name: "p", arg: 2, scope: !7, file: !1, line: 5, type: !12) 135!20 = !DILocation(line: 0, scope: !7) 136!21 = !DILocation(line: 7, column: 3, scope: !7) 137