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26a102eb58
This patch adds support for deleted C++ special member functions in clang and llvm. Also added Defaulted member encodings for future support for defaulted member functions. Patch by Sourabh Singh Tomar! Differential Revision: https://reviews.llvm.org/D69215
111 lines
5.4 KiB
LLVM
111 lines
5.4 KiB
LLVM
; RUN: llc < %s -filetype=obj -o %t
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; RUN: llvm-dwarfdump -v %t | FileCheck %s
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; C++ source to regenerate:
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; class deleted {
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; public:
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; // Defaulted on purpose, so as to facilitate object creation
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; deleted() = default;
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;
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; deleted(const deleted &) = delete;
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; deleted &operator=(const deleted &) = delete;
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;
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; deleted(deleted &&) = delete;
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; deleted &operator=(deleted &&) = delete;
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;
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; ~deleted() = default;
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; };
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;
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; void foo() {
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; deleted obj1;
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; }
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; $ clang++ -O0 -g -gdwarf-5 debug-info-deleted.cpp -c
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; CHECK: .debug_abbrev contents:
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; CHECK: [7] DW_TAG_subprogram DW_CHILDREN_yes
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; CHECK: DW_AT_deleted DW_FORM_flag_present
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; CHECK: [9] DW_TAG_subprogram DW_CHILDREN_yes
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; CHECK: DW_AT_deleted DW_FORM_flag_present
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; CHECK: .debug_info contents:
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; CHECK: DW_TAG_subprogram [7]
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; CHECK-NEXT: DW_AT_name [DW_FORM_strx1] (indexed (00000006) string = "deleted")
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; CHECK: DW_AT_deleted [DW_FORM_flag_present] (true)
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; CHECK: DW_TAG_subprogram [9]
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; CHECK-NEXT: DW_AT_linkage_name [DW_FORM_strx1] (indexed (00000007) string = "_ZN7deletedaSERKS_")
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; CHECK: DW_AT_deleted [DW_FORM_flag_present] (true)
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; CHECK: DW_TAG_subprogram [7]
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; CHECK-NEXT: DW_AT_name [DW_FORM_strx1] (indexed (00000006) string = "deleted")
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; CHECK: DW_AT_deleted [DW_FORM_flag_present] (true)
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; CHECK: DW_TAG_subprogram [9]
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; CHECK-NEXT: DW_AT_linkage_name [DW_FORM_strx1] (indexed (00000009) string = "_ZN7deletedaSEOS_")
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; CHECK-NEXT: DW_AT_name [DW_FORM_strx1] (indexed (00000008) string = "operator=")
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; CHECK: DW_AT_deleted [DW_FORM_flag_present] (true)
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; ModuleID = 'debug-info-deleted.cpp'
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source_filename = "debug-info-deleted.cpp"
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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%class.deleted = type { i8 }
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; Function Attrs: noinline nounwind optnone uwtable
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define dso_local void @_Z3foov() #0 !dbg !7 {
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%1 = alloca %class.deleted, align 1
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call void @llvm.dbg.declare(metadata %class.deleted* %1, metadata !10, metadata !DIExpression()), !dbg !34
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ret void, !dbg !35
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}
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; Function Attrs: nounwind readnone speculatable willreturn
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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attributes #0 = { noinline nounwind optnone uwtable }
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attributes #1 = { nounwind readnone speculatable willreturn }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 10.0.0 (https://github.com/llvm/llvm-project.git 715c47d5de9aa8860050992a7aaf27dca53f7f4a)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
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!1 = !DIFile(filename: "debug-info-deleted.cpp", directory: "/home/sourabh/work/dwarf/c_c++/c++11", checksumkind: CSK_MD5, checksum: "49dc56907586479c64634558b060292d")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 5}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 10.0.0 (https://github.com/llvm/llvm-project.git 715c47d5de9aa8860050992a7aaf27dca53f7f4a)"}
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!7 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !1, file: !1, line: 14, type: !8, scopeLine: 14, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!8 = !DISubroutineType(types: !9)
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!9 = !{null}
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!10 = !DILocalVariable(name: "obj1", scope: !7, file: !1, line: 15, type: !11)
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!11 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "deleted", file: !1, line: 1, size: 8, flags: DIFlagTypePassByReference, elements: !12, identifier: "_ZTS7deleted")
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!12 = !{!13, !17, !22, !26, !30, !33}
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!13 = !DISubprogram(name: "deleted", scope: !11, file: !1, line: 3, type: !14, scopeLine: 3, flags: DIFlagPublic | DIFlagPrototyped, spFlags: 0)
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!14 = !DISubroutineType(types: !15)
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!15 = !{null, !16}
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!16 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !11, size: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
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!17 = !DISubprogram(name: "deleted", scope: !11, file: !1, line: 5, type: !18, scopeLine: 5, flags: DIFlagPublic | DIFlagPrototyped, spFlags: DISPFlagDeleted)
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!18 = !DISubroutineType(types: !19)
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!19 = !{null, !16, !20}
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!20 = !DIDerivedType(tag: DW_TAG_reference_type, baseType: !21, size: 64)
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!21 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !11)
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!22 = !DISubprogram(name: "operator=", linkageName: "_ZN7deletedaSERKS_", scope: !11, file: !1, line: 6, type: !23, scopeLine: 6, flags: DIFlagPublic | DIFlagPrototyped, spFlags: DISPFlagDeleted)
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!23 = !DISubroutineType(types: !24)
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!24 = !{!25, !16, !20}
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!25 = !DIDerivedType(tag: DW_TAG_reference_type, baseType: !11, size: 64)
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!26 = !DISubprogram(name: "deleted", scope: !11, file: !1, line: 8, type: !27, scopeLine: 8, flags: DIFlagPublic | DIFlagPrototyped, spFlags: DISPFlagDeleted)
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!27 = !DISubroutineType(types: !28)
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!28 = !{null, !16, !29}
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!29 = !DIDerivedType(tag: DW_TAG_rvalue_reference_type, baseType: !11, size: 64)
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!30 = !DISubprogram(name: "operator=", linkageName: "_ZN7deletedaSEOS_", scope: !11, file: !1, line: 9, type: !31, scopeLine: 9, flags: DIFlagPublic | DIFlagPrototyped, spFlags: DISPFlagDeleted)
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!31 = !DISubroutineType(types: !32)
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!32 = !{!25, !16, !29}
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!33 = !DISubprogram(name: "~deleted", scope: !11, file: !1, line: 11, type: !14, scopeLine: 11, flags: DIFlagPublic | DIFlagPrototyped, spFlags: 0)
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!34 = !DILocation(line: 15, column: 13, scope: !7)
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!35 = !DILocation(line: 16, column: 3, scope: !7)
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