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23c2febb59
For Swift we would like to be able to encode the error types that a function may throw, so the debugger can display them alongside the function's return value when finish-ing a function. DWARF defines DW_TAG_thrown_type (intended to be used for C++ throw() declarations) that is a perfect fit for this purpose. This patch wires up support for DW_TAG_thrown_type in LLVM by adding a list of thrown types to DISubprogram. To offset the cost of the extra pointer, there is a follow-up patch that turns DISubprogram into a variable-length node. rdar://problem/29481673 Differential Revision: https://reviews.llvm.org/D32559 llvm-svn: 301489
75 lines
3.8 KiB
LLVM
75 lines
3.8 KiB
LLVM
; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | FileCheck %s
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; RUN: verify-uselistorder %s
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; CHECK: define void @_Z3foov() !dbg !9
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define void @_Z3foov() !dbg !9 {
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ret void
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}
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; CHECK: !named = !{!0, !1, !2, !3, !4, !5, !6, !7, !8, !9, !10, !11, !12, !13, !14}
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!named = !{!0, !1, !2, !3, !4, !5, !6, !7, !8, !9, !10, !11, !12, !13, !14}
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!0 = !{null}
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!1 = distinct !DICompositeType(tag: DW_TAG_structure_type)
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!2 = !DIFile(filename: "path/to/file", directory: "/path/to/dir")
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!3 = !DISubroutineType(types: !0)
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!4 = distinct !DICompositeType(tag: DW_TAG_structure_type)
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!5 = distinct !{}
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!6 = distinct !{}
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; CHECK: !7 = distinct !DISubprogram(scope: null, isLocal: false, isDefinition: true, isOptimized: false, unit: !8)
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!7 = distinct !DISubprogram(unit: !8)
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!8 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang",
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file: !2,
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isOptimized: true, flags: "-O2",
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splitDebugFilename: "abc.debug", emissionKind: 2)
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; CHECK: !9 = !DISubprogram(scope: null, isLocal: false, isDefinition: false, isOptimized: false)
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!9 = !DISubprogram(isDefinition: false)
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; CHECK: !10 = distinct !DISubprogram(name: "foo", linkageName: "_Zfoov", scope: !1, file: !2, line: 7, type: !3, isLocal: true, isDefinition: true, scopeLine: 8, containingType: !4, virtuality: DW_VIRTUALITY_pure_virtual, virtualIndex: 10, thisAdjustment: 3, flags: DIFlagPrototyped | DIFlagNoReturn, isOptimized: true, unit: !8, templateParams: !5, declaration: !9, variables: !6)
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!10 = distinct !DISubprogram(name: "foo", linkageName: "_Zfoov", scope: !1,
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file: !2, line: 7, type: !3, isLocal: true,
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isDefinition: true, scopeLine: 8,
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containingType: !4,
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virtuality: DW_VIRTUALITY_pure_virtual,
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virtualIndex: 10, thisAdjustment: 3, flags: DIFlagPrototyped | DIFlagNoReturn,
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isOptimized: true, unit: !8, templateParams: !5,
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declaration: !9, variables: !6)
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; CHECK: !11 = distinct !DISubprogram
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; CHECK-SAME: virtualIndex: 0,
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!11 = distinct !DISubprogram(name: "foo", linkageName: "_Zfoov", scope: !1,
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file: !2, line: 7, type: !3, isLocal: true,
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isDefinition: true, scopeLine: 8,
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containingType: !4,
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virtuality: DW_VIRTUALITY_pure_virtual,
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virtualIndex: 0,
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flags: DIFlagPrototyped, isOptimized: true,
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unit: !8, templateParams: !5, declaration: !9,
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variables: !6)
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; CHECK: !12 = distinct !DISubprogram
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; CHECK-NOT: virtualIndex
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!12 = distinct !DISubprogram(name: "foo", linkageName: "_Zfoov", scope: !1,
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file: !2, line: 7, type: !3, isLocal: true,
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isDefinition: true, scopeLine: 8,
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containingType: !4,
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virtuality: DW_VIRTUALITY_none,
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flags: DIFlagPrototyped, isOptimized: true,
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unit: !8,
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templateParams: !5, declaration: !9, variables: !6)
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!13 = !{!4}
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; CHECK: !13 = !{!4}
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; CHECK: !14 = distinct !DISubprogram(name: "foo", scope: !1, file: !2, line: 1, type: !3, isLocal: true, isDefinition: true, scopeLine: 2, isOptimized: false, unit: !8, thrownTypes: !13)
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!14 = distinct !DISubprogram(name: "foo", scope: !1,
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file: !2, line: 1, type: !3, isLocal: true,
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isDefinition: true, scopeLine: 2, isOptimized: false,
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unit: !8, thrownTypes: !13)
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!15 = !{i32 1, !"Debug Info Version", i32 3}
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!llvm.module.flags = !{!15}
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!llvm.dbg.cu = !{!8}
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