1 ; REQUIRES: object-emission 2 3 ; RUN: llc < %s -o %t -filetype=obj -O0 -generate-type-units -mtriple=x86_64-unknown-linux-gnu 4 ; RUN: llvm-dwarfdump %t | FileCheck --check-prefix=CHECK --check-prefix=SINGLE %s 5 ; RUN: llvm-readobj -s -t %t | FileCheck --check-prefix=OBJ_SINGLE %s 6 7 ; RUN: llc < %s -split-dwarf=Enable -o %t -filetype=obj -O0 -generate-type-units -mtriple=x86_64-unknown-linux-gnu 8 ; RUN: llvm-dwarfdump %t | FileCheck --check-prefix=CHECK --check-prefix=FISSION %s 9 ; RUN: llvm-readobj -s -t %t | FileCheck --check-prefix=OBJ_FISSION %s 10 11 ; Generated from bar.cpp: 12 13 ; #line 1 "bar.h" 14 ; struct bar {}; 15 ; #line 2 "bar.cpp" 16 17 ; struct bar b; 18 19 ; void foo(void) { 20 ; struct baz {}; 21 ; baz b; 22 ; } 23 24 ; namespace echidna { 25 ; namespace capybara { 26 ; namespace mongoose { 27 ; class fluffy { 28 ; int a; 29 ; int b; 30 ; }; 31 32 ; fluffy animal; 33 ; } 34 ; } 35 ; } 36 37 ; namespace { 38 ; struct walrus { 39 ; walrus() {} 40 ; }; 41 ; } 42 43 ; walrus w; 44 45 ; struct wombat { 46 ; struct { 47 ; int a; 48 ; int b; 49 ; } a_b; 50 ; }; 51 52 ; wombat wom; 53 54 ; SINGLE-LABEL: .debug_info contents: 55 ; FISSION-LABEL: .debug_info.dwo contents: 56 ; CHECK: Compile Unit: length = [[CU_SIZE:[0-9a-f]+]] 57 58 ; CHECK: [[BAR:^0x........]]: DW_TAG_structure_type 59 ; CHECK-NEXT: DW_AT_declaration 60 ; CHECK-NEXT: DW_AT_signature {{.*}} (0x1d02f3be30cc5688) 61 ; CHECK: [[FLUFFY:^0x........]]: DW_TAG_class_type 62 ; CHECK-NEXT: DW_AT_declaration 63 ; CHECK-NEXT: DW_AT_signature {{.*}} (0xb04af47397402e77) 64 65 ; Ensure the CU-local type 'walrus' is not placed in a type unit. 66 ; CHECK: [[WALRUS:^0x........]]: DW_TAG_structure_type 67 ; CHECK-NEXT: DW_AT_name{{.*}}"walrus" 68 ; CHECK-NEXT: DW_AT_byte_size 69 ; CHECK-NEXT: DW_AT_decl_file 70 ; CHECK-NEXT: DW_AT_decl_line 71 72 73 ; CHECK: [[WOMBAT:^0x........]]: DW_TAG_structure_type 74 ; CHECK-NEXT: DW_AT_declaration 75 ; CHECK-NEXT: DW_AT_signature {{.*}} (0xfd756cee88f8a118) 76 77 ; SINGLE-LABEL: .debug_types contents: 78 ; FISSION-NOT: .debug_types contents: 79 ; FISSION-LABEL: .debug_types.dwo contents: 80 81 ; Check that we generate a hash for bar and the value. 82 ; CHECK-NOT: type_signature 83 ; CHECK-LABEL: type_signature = 0x1d02f3be30cc5688 84 ; CHECK: DW_TAG_structure_type 85 ; FISSION-NEXT: DW_AT_name {{.*}} ( indexed {{.*}} "bar" 86 ; SINGLE-NEXT: DW_AT_name {{.*}} "bar" 87 88 89 ; Check that we generate a hash for fluffy and the value. 90 ; CHECK-NOT: type_signature 91 ; CHECK-LABEL: type_signature = 0xb04af47397402e77 92 ; CHECK-NOT: DW_AT_GNU_odr_signature [DW_FORM_data8] (0x9a0124d5a0c21c52) 93 ; CHECK: DW_TAG_namespace 94 ; CHECK-NEXT: DW_AT_name{{.*}}"echidna" 95 ; CHECK: DW_TAG_namespace 96 ; CHECK-NEXT: DW_AT_name{{.*}}"capybara" 97 ; CHECK: DW_TAG_namespace 98 ; CHECK-NEXT: DW_AT_name{{.*}}"mongoose" 99 ; CHECK: DW_TAG_class_type 100 ; CHECK-NEXT: DW_AT_name{{.*}}"fluffy" 101 102 ; Check that we generate a hash for wombat and the value, but not for the 103 ; anonymous type contained within. 104 ; CHECK-NOT: type_signature 105 ; CHECK-LABEL: type_signature = 0xfd756cee88f8a118 106 ; CHECK-NOT: DW_AT_GNU_odr_signature [DW_FORM_data8] (0x685bcc220141e9d7) 107 ; CHECK: DW_TAG_structure_type 108 ; CHECK-NEXT: DW_AT_name{{.*}}"wombat" 109 110 ; CHECK-NOT: type_signature 111 ; CHECK-LABEL: type_signature = 0xe94f6d3843e62d6b 112 ; CHECK: DW_TAG_type_unit 113 ; CHECK: DW_AT_stmt_list [DW_FORM_sec_offset] (0x00000000) 114 ; CHECK-NOT: NULL 115 ; CHECK-NOT: DW_AT_GNU_odr_signature 116 ; CHECK: DW_TAG_structure_type 117 ; The signature for the outer 'wombat' type 118 ; CHECK: DW_AT_signature [DW_FORM_ref_sig8] (0xfd756cee88f8a118) 119 ; CHECK: DW_TAG_structure_type 120 ; CHECK-NOT: DW_AT_name 121 ; CHECK-NOT: DW_AT_GNU_odr_signature 122 ; CHECK: DW_TAG_member 123 ; CHECK-NEXT: DW_AT_name{{.*}}"a" 124 125 ; CHECK-LABEL: .debug_line contents: 126 ; CHECK: Line table prologue 127 ; CHECK-NOT: file_names[ 128 ; SINGLE: file_names{{.*}} bar.h 129 ; CHECK: file_names{{.*}} bar.cpp 130 ; CHECK-NOT: file_names[ 131 132 ; CHECK-LABEL: .debug_line.dwo contents: 133 ; FISSION: Line table prologue 134 ; FISSION: opcode_base: 1 135 ; FISSION-NOT: standard_opcode_lengths 136 ; FISSION-NOT: include_directories 137 ; FISSION-NOT: file_names[ 138 ; FISSION: file_names{{.*}} bar.h 139 ; FISSION: file_names{{.*}} bar.cpp 140 ; FISSION-NOT: file_names[ 141 142 ; CHECK-LABEL: .debug_str contents: 143 144 ; Use the unit size as a rough hash/identifier for the unit we're dealing with 145 ; it happens to be unambiguous at the moment, but it's hardly ideal. 146 ; CHECK-LABEL: .debug_pubtypes contents: 147 ; Don't emit pubtype entries for type DIEs in the compile unit that just indirect to a type unit. 148 ; CHECK-NEXT: unit_size = [[CU_SIZE]] 149 ; CHECK-NEXT: Offset Name 150 ; CHECK-DAG: [[BAR]] "bar" 151 ; CHECK-DAG: [[WALRUS]] "(anonymous namespace)::walrus" 152 ; CHECK-DAG: [[WOMBAT]] "wombat" 153 ; CHECK-DAG: [[FLUFFY]] "echidna::capybara::mongoose::fluffy" 154 155 ; Make sure debug_types are in comdat groups. This could be more rigid to check 156 ; that they're the right comdat groups (each type in a separate comdat group, 157 ; etc) 158 ; OBJ_SINGLE: Name: .debug_types ( 159 ; OBJ_SINGLE-NOT: } 160 ; OBJ_SINGLE: SHF_GROUP 161 162 ; Fission type units don't go in comdat groups, since their linker is debug 163 ; aware it's handled using the debug info semantics rather than raw ELF object 164 ; semantics. 165 ; OBJ_FISSION: Name: .debug_types.dwo ( 166 ; OBJ_FISSION-NOT: SHF_GROUP 167 ; OBJ_FISSION: } 168 169 %struct.bar = type { i8 } 170 %"class.echidna::capybara::mongoose::fluffy" = type { i32, i32 } 171 %"struct.<anonymous namespace>::walrus" = type { i8 } 172 %struct.wombat = type { %struct.anon } 173 %struct.anon = type { i32, i32 } 174 %struct.baz = type { i8 } 175 176 @b = global %struct.bar zeroinitializer, align 1 177 @_ZN7echidna8capybara8mongoose6animalE = global %"class.echidna::capybara::mongoose::fluffy" zeroinitializer, align 4 178 @w = internal global %"struct.<anonymous namespace>::walrus" zeroinitializer, align 1 179 @wom = global %struct.wombat zeroinitializer, align 4 180 @llvm.global_ctors = appending global [1 x { i32, void ()* }] [{ i32, void ()* } { i32 65535, void ()* @_GLOBAL__I_a }] 181 182 ; Function Attrs: nounwind uwtable 183 define void @_Z3foov() #0 !dbg !22 { 184 entry: 185 %b = alloca %struct.baz, align 1 186 call void @llvm.dbg.declare(metadata %struct.baz* %b, metadata !46, metadata !DIExpression()), !dbg !48 187 ret void, !dbg !49 188 } 189 190 ; Function Attrs: nounwind readnone 191 declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 192 193 define internal void @__cxx_global_var_init() section ".text.startup" !dbg !26 { 194 entry: 195 call void @_ZN12_GLOBAL__N_16walrusC2Ev(%"struct.<anonymous namespace>::walrus"* @w), !dbg !50 196 ret void, !dbg !50 197 } 198 199 ; Function Attrs: nounwind uwtable 200 define internal void @_ZN12_GLOBAL__N_16walrusC2Ev(%"struct.<anonymous namespace>::walrus"* %this) unnamed_addr #0 align 2 !dbg !27 { 201 entry: 202 %this.addr = alloca %"struct.<anonymous namespace>::walrus"*, align 8 203 store %"struct.<anonymous namespace>::walrus"* %this, %"struct.<anonymous namespace>::walrus"** %this.addr, align 8 204 call void @llvm.dbg.declare(metadata %"struct.<anonymous namespace>::walrus"** %this.addr, metadata !51, metadata !DIExpression()), !dbg !53 205 %this1 = load %"struct.<anonymous namespace>::walrus"*, %"struct.<anonymous namespace>::walrus"** %this.addr 206 ret void, !dbg !54 207 } 208 209 define internal void @_GLOBAL__I_a() section ".text.startup" !dbg !36 { 210 entry: 211 call void @__cxx_global_var_init(), !dbg !55 212 ret void, !dbg !55 213 } 214 215 attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 216 attributes #1 = { nounwind readnone } 217 218 !llvm.dbg.cu = !{!0} 219 !llvm.module.flags = !{!43, !44} 220 !llvm.ident = !{!45} 221 222 !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.5 ", isOptimized: false, splitDebugFilename: "bar.dwo", emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !38, imports: !2) 223 !1 = !DIFile(filename: "bar.cpp", directory: "/tmp/dbginfo") 224 !2 = !{} 225 !3 = !{!4, !6, !14, !17} 226 !4 = !DICompositeType(tag: DW_TAG_structure_type, name: "bar", line: 1, size: 8, align: 8, file: !5, elements: !2, identifier: "_ZTS3bar") 227 !5 = !DIFile(filename: "bar.h", directory: "/tmp/dbginfo") 228 !6 = !DICompositeType(tag: DW_TAG_class_type, name: "fluffy", line: 13, size: 64, align: 32, file: !1, scope: !7, elements: !10, identifier: "_ZTSN7echidna8capybara8mongoose6fluffyE") 229 !7 = !DINamespace(name: "mongoose", line: 12, file: !1, scope: !8) 230 !8 = !DINamespace(name: "capybara", line: 11, file: !1, scope: !9) 231 !9 = !DINamespace(name: "echidna", line: 10, file: !1, scope: null) 232 !10 = !{!11, !13} 233 !11 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 14, size: 32, align: 32, flags: DIFlagPrivate, file: !1, scope: !6, baseType: !12) 234 !12 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 235 !13 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 15, size: 32, align: 32, offset: 32, flags: DIFlagPrivate, file: !1, scope: !6, baseType: !12) 236 !14 = !DICompositeType(tag: DW_TAG_structure_type, name: "wombat", line: 31, size: 64, align: 32, file: !1, elements: !15, identifier: "_ZTS6wombat") 237 !15 = !{!16} 238 !16 = !DIDerivedType(tag: DW_TAG_member, name: "a_b", line: 35, size: 64, align: 32, file: !1, scope: !14, baseType: !17) 239 !17 = !DICompositeType(tag: DW_TAG_structure_type, line: 32, size: 64, align: 32, file: !1, scope: !14, elements: !18, identifier: "_ZTSN6wombatUt_E") 240 !18 = !{!19, !20} 241 !19 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 33, size: 32, align: 32, file: !1, scope: !17, baseType: !12) 242 !20 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 34, size: 32, align: 32, offset: 32, file: !1, scope: !17, baseType: !12) 243 !22 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 5, file: !1, scope: !23, type: !24, variables: !2) 244 !23 = !DIFile(filename: "bar.cpp", directory: "/tmp/dbginfo") 245 !24 = !DISubroutineType(types: !25) 246 !25 = !{null} 247 !26 = distinct !DISubprogram(name: "__cxx_global_var_init", line: 29, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 29, file: !1, scope: !23, type: !24, variables: !2) 248 !27 = distinct !DISubprogram(name: "walrus", linkageName: "_ZN12_GLOBAL__N_16walrusC2Ev", line: 25, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 25, file: !1, scope: !28, type: !32, declaration: !31, variables: !2) 249 !28 = !DICompositeType(tag: DW_TAG_structure_type, name: "walrus", line: 24, size: 8, align: 8, file: !1, scope: !29, elements: !30) 250 !29 = !DINamespace(line: 23, file: !1, scope: null) 251 !30 = !{!31} 252 !31 = !DISubprogram(name: "walrus", line: 25, isLocal: false, isDefinition: false, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 25, file: !1, scope: !28, type: !32) 253 !32 = !DISubroutineType(types: !33) 254 !33 = !{null, !34} 255 !34 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !28) 256 !36 = distinct !DISubprogram(name: "", linkageName: "_GLOBAL__I_a", line: 25, isLocal: true, isDefinition: true, virtualIndex: 6, flags: DIFlagArtificial, isOptimized: false, unit: !0, scopeLine: 25, file: !1, scope: !23, type: !37, variables: !2) 257 !37 = !DISubroutineType(types: !2) 258 !38 = !{!39, !40, !41, !42} 259 !39 = !DIGlobalVariable(name: "b", line: 3, isLocal: false, isDefinition: true, scope: null, file: !23, type: !4, variable: %struct.bar* @b) 260 !40 = !DIGlobalVariable(name: "animal", linkageName: "_ZN7echidna8capybara8mongoose6animalE", line: 18, isLocal: false, isDefinition: true, scope: !7, file: !23, type: !6, variable: %"class.echidna::capybara::mongoose::fluffy"* @_ZN7echidna8capybara8mongoose6animalE) 261 !41 = !DIGlobalVariable(name: "w", line: 29, isLocal: true, isDefinition: true, scope: null, file: !23, type: !28, variable: %"struct.<anonymous namespace>::walrus"* @w) 262 !42 = !DIGlobalVariable(name: "wom", line: 38, isLocal: false, isDefinition: true, scope: null, file: !23, type: !14, variable: %struct.wombat* @wom) 263 !43 = !{i32 2, !"Dwarf Version", i32 4} 264 !44 = !{i32 1, !"Debug Info Version", i32 3} 265 !45 = !{!"clang version 3.5 "} 266 !46 = !DILocalVariable(name: "b", line: 7, scope: !22, file: !23, type: !47) 267 !47 = !DICompositeType(tag: DW_TAG_structure_type, name: "baz", line: 6, size: 8, align: 8, file: !1, scope: !22, elements: !2) 268 !48 = !DILocation(line: 7, scope: !22) 269 !49 = !DILocation(line: 8, scope: !22) 270 !50 = !DILocation(line: 29, scope: !26) 271 !51 = !DILocalVariable(name: "this", arg: 1, flags: DIFlagArtificial | DIFlagObjectPointer, scope: !27, type: !52) 272 !52 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !28) 273 !53 = !DILocation(line: 0, scope: !27) 274 !54 = !DILocation(line: 25, scope: !27) 275 !55 = !DILocation(line: 25, scope: !36) 276
