| ; RUN: llc -mtriple=x86_64-pc-linux -filetype=obj -o %t < %s |
| ; RUN: llvm-dwarfdump -v %t | FileCheck %s |
| |
| ; CHECK: 0x00000033: DW_TAG_formal_parameter [3] |
| ; CHECK-NEXT: DW_AT_location [DW_FORM_sec_offset] (0x0000000c |
| ; CHECK-NEXT: [0x0000000000000000, 0x0000000000000004): DW_OP_breg5 RDI+0 |
| ; CHECK-NEXT: [0x0000000000000004, 0x0000000000000012): DW_OP_breg3 RBX+0) |
| ; CHECK-NEXT: DW_AT_name [DW_FORM_strx1] ( indexed (0000000e) string = "a") |
| ; CHECK-NEXT: DW_AT_decl_file [DW_FORM_data1] ("/home/folder{{\\|\/}}test.cc") |
| ; CHECK-NEXT: DW_AT_decl_line [DW_FORM_data1] (6) |
| ; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + 0x0040 => {0x00000040} "A") |
| |
| ; CHECK: .debug_loclists contents: |
| ; CHECK-NEXT: 0x00000000: locations list header: length = 0x00000017, version = 0x0005, addr_size = 0x08, seg_size = 0x00, offset_entry_count = 0x00000000 |
| ; CHECK-NEXT: 0x00000000: |
| ; CHECK-NEXT: [0x0000000000000000, 0x0000000000000004): DW_OP_breg5 RDI+0 |
| ; CHECK-NEXT: [0x0000000000000004, 0x0000000000000012): DW_OP_breg3 RBX+0 |
| |
| ; There is no way to use llvm-dwarfdump atm (2018, october) to verify the DW_LLE_* codes emited, |
| ; because dumper is not yet implements that. Use asm code to do this check instead. |
| ; |
| ; RUN: llc -mtriple=x86_64-pc-linux -filetype=asm < %s -o - | FileCheck %s --check-prefix=ASM |
| ; ASM: .section .debug_loclists,"",@progbits |
| ; ASM-NEXT: .long .Ldebug_loclist_table_end0-.Ldebug_loclist_table_start0 # Length |
| ; ASM-NEXT: .Ldebug_loclist_table_start0: |
| ; ASM-NEXT: .short 5 # Version |
| ; ASM-NEXT: .byte 8 # Address size |
| ; ASM-NEXT: .byte 0 # Segment selector size |
| ; ASM-NEXT: .long 0 # Offset entry count |
| ; ASM-NEXT: .Lloclists_table_base0: |
| ; ASM-NEXT: .Ldebug_loc0: |
| ; ASM-NEXT: .byte 4 # DW_LLE_offset_pair |
| ; ASM-NEXT: .uleb128 .Lfunc_begin0-.Lfunc_begin0 # starting offset |
| ; ASM-NEXT: .uleb128 .Ltmp0-.Lfunc_begin0 # ending offset |
| ; ASM-NEXT: .short 2 # Loc expr size |
| ; ASM-NEXT: .byte 117 # DW_OP_breg5 |
| ; ASM-NEXT: .byte 0 # 0 |
| ; ASM-NEXT: .byte 4 # DW_LLE_offset_pair |
| ; ASM-NEXT: .uleb128 .Ltmp0-.Lfunc_begin0 # starting offset |
| ; ASM-NEXT: .uleb128 .Ltmp1-.Lfunc_begin0 # ending offset |
| ; ASM-NEXT: .short 2 # Loc expr size |
| ; ASM-NEXT: .byte 115 # DW_OP_breg3 |
| ; ASM-NEXT: .byte 0 # 0 |
| ; ASM-NEXT: .byte 0 # DW_LLE_end_of_list |
| ; ASM-NEXT: .Ldebug_loclist_table_end0: |
| |
| ; ModuleID = 'test.cc' |
| source_filename = "test.cc" |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| %struct.A = type { i32 (...)** } |
| |
| @_ZTV1A = dso_local unnamed_addr constant { [4 x i8*] } { [4 x i8*] [i8* null, i8* bitcast ({ i8*, i8* }* @_ZTI1A to i8*), i8* bitcast (void (%struct.A*)* @_ZN1A3fooEv to i8*), i8* bitcast (void (%struct.A*)* @_ZN1A3barEv to i8*)] }, align 8 |
| @_ZTVN10__cxxabiv117__class_type_infoE = external dso_local global i8* |
| @_ZTS1A = dso_local constant [3 x i8] c"1A\00", align 1 |
| @_ZTI1A = dso_local constant { i8*, i8* } { i8* bitcast (i8** getelementptr inbounds (i8*, i8** @_ZTVN10__cxxabiv117__class_type_infoE, i64 2) to i8*), i8* getelementptr inbounds ([3 x i8], [3 x i8]* @_ZTS1A, i32 0, i32 0) }, align 8 |
| |
| ; Function Attrs: noinline optnone uwtable |
| define dso_local void @_Z3baz1A(%struct.A* %a) #0 !dbg !7 { |
| entry: |
| call void @llvm.dbg.declare(metadata %struct.A* %a, metadata !23, metadata !DIExpression()), !dbg !24 |
| call void @_ZN1A3fooEv(%struct.A* %a), !dbg !25 |
| call void @_ZN1A3barEv(%struct.A* %a), !dbg !26 |
| ret void, !dbg !27 |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 |
| |
| ; Function Attrs: noinline nounwind optnone uwtable |
| define dso_local void @_ZN1A3fooEv(%struct.A* %this) unnamed_addr #2 align 2 !dbg !28 { |
| entry: |
| %this.addr = alloca %struct.A*, align 8 |
| store %struct.A* %this, %struct.A** %this.addr, align 8 |
| call void @llvm.dbg.declare(metadata %struct.A** %this.addr, metadata !29, metadata !DIExpression()), !dbg !31 |
| %this1 = load %struct.A*, %struct.A** %this.addr, align 8 |
| ret void, !dbg !32 |
| } |
| |
| ; Function Attrs: noinline nounwind optnone uwtable |
| define dso_local void @_ZN1A3barEv(%struct.A* %this) unnamed_addr #2 align 2 !dbg !33 { |
| entry: |
| %this.addr = alloca %struct.A*, align 8 |
| store %struct.A* %this, %struct.A** %this.addr, align 8 |
| call void @llvm.dbg.declare(metadata %struct.A** %this.addr, metadata !34, metadata !DIExpression()), !dbg !35 |
| %this1 = load %struct.A*, %struct.A** %this.addr, align 8 |
| ret void, !dbg !36 |
| } |
| |
| ; Function Attrs: noinline norecurse nounwind optnone uwtable |
| define dso_local i32 @main() #3 !dbg !37 { |
| entry: |
| %retval = alloca i32, align 4 |
| store i32 0, i32* %retval, align 4 |
| ret i32 0, !dbg !38 |
| } |
| |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4, !5} |
| !llvm.ident = !{!6} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 8.0.0 (trunk 344035)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None) |
| !1 = !DIFile(filename: "test.cc", directory: "/home/folder", checksumkind: CSK_MD5, checksum: "e0f357ad6dcb791a774a0dae55baf5e7") |
| !2 = !{} |
| !3 = !{i32 2, !"Dwarf Version", i32 5} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{i32 1, !"wchar_size", i32 4} |
| !6 = !{!"clang version 8.0.0 (trunk 344035)"} |
| !7 = distinct !DISubprogram(name: "baz", linkageName: "_Z3baz1A", scope: !1, file: !1, line: 6, type: !8, isLocal: false, isDefinition: true, scopeLine: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2) |
| !8 = !DISubroutineType(types: !9) |
| !9 = !{null, !10} |
| !10 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "A", file: !1, line: 1, size: 64, flags: DIFlagTypePassByReference, elements: !11, vtableHolder: !10, identifier: "_ZTS1A") |
| !11 = !{!12, !18, !22} |
| !12 = !DIDerivedType(tag: DW_TAG_member, name: "_vptr$A", scope: !1, file: !1, baseType: !13, size: 64, flags: DIFlagArtificial) |
| !13 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !14, size: 64) |
| !14 = !DIDerivedType(tag: DW_TAG_pointer_type, name: "__vtbl_ptr_type", baseType: !15, size: 64) |
| !15 = !DISubroutineType(types: !16) |
| !16 = !{!17} |
| !17 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !18 = !DISubprogram(name: "foo", linkageName: "_ZN1A3fooEv", scope: !10, file: !1, line: 2, type: !19, isLocal: false, isDefinition: false, scopeLine: 2, containingType: !10, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 0, flags: DIFlagPrototyped, isOptimized: false) |
| !19 = !DISubroutineType(types: !20) |
| !20 = !{null, !21} |
| !21 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 64, flags: DIFlagArtificial | DIFlagObjectPointer) |
| !22 = !DISubprogram(name: "bar", linkageName: "_ZN1A3barEv", scope: !10, file: !1, line: 3, type: !19, isLocal: false, isDefinition: false, scopeLine: 3, containingType: !10, virtuality: DW_VIRTUALITY_virtual, virtualIndex: 1, flags: DIFlagPrototyped, isOptimized: false) |
| !23 = !DILocalVariable(name: "a", arg: 1, scope: !7, file: !1, line: 6, type: !10) |
| !24 = !DILocation(line: 6, column: 19, scope: !7) |
| !25 = !DILocation(line: 7, column: 6, scope: !7) |
| !26 = !DILocation(line: 8, column: 6, scope: !7) |
| !27 = !DILocation(line: 9, column: 1, scope: !7) |
| !28 = distinct !DISubprogram(name: "foo", linkageName: "_ZN1A3fooEv", scope: !10, file: !1, line: 12, type: !19, isLocal: false, isDefinition: true, scopeLine: 12, flags: DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !18, retainedNodes: !2) |
| !29 = !DILocalVariable(name: "this", arg: 1, scope: !28, type: !30, flags: DIFlagArtificial | DIFlagObjectPointer) |
| !30 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !10, size: 64) |
| !31 = !DILocation(line: 0, scope: !28) |
| !32 = !DILocation(line: 12, column: 16, scope: !28) |
| !33 = distinct !DISubprogram(name: "bar", linkageName: "_ZN1A3barEv", scope: !10, file: !1, line: 13, type: !19, isLocal: false, isDefinition: true, scopeLine: 13, flags: DIFlagPrototyped, isOptimized: false, unit: !0, declaration: !22, retainedNodes: !2) |
| !34 = !DILocalVariable(name: "this", arg: 1, scope: !33, type: !30, flags: DIFlagArtificial | DIFlagObjectPointer) |
| !35 = !DILocation(line: 0, scope: !33) |
| !36 = !DILocation(line: 13, column: 16, scope: !33) |
| !37 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 15, type: !15, isLocal: false, isDefinition: true, scopeLine: 15, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2) |
| !38 = !DILocation(line: 16, column: 3, scope: !37) |