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8e66c2eabb
As discussed on llvm-dev in http://lists.llvm.org/pipermail/llvm-dev/2017-September/117301.html this changes the command line interface of llvm-dwarfdump to match the one used by the dwarfdump utility shipping on macOS. In addition to being shorter to type this format also has the advantage of allowing more than one section to be specified at the same time. In a nutshell, with this change $ llvm-dwarfdump --debug-dump=info $ llvm-dwarfdump --debug-dump=apple-objc becomes $ dwarfdump --debug-info --apple-objc Differential Revision: https://reviews.llvm.org/D37714 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@312970 91177308-0d34-0410-b5e6-96231b3b80d8
46 lines
2.3 KiB
LLVM
46 lines
2.3 KiB
LLVM
; RUN: llc -mtriple=x86_64-apple-darwin %s -o %t -filetype=obj
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; RUN: llvm-dwarfdump -all %t | FileCheck %s
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; Checks that we don't emit a size for a pointer type.
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; CHECK: DW_TAG_pointer_type
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; CHECK-NEXT: DW_AT_type
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; CHECK-NOT: DW_AT_byte_size
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; CHECK: DW_TAG
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; CHECK: .debug_info contents
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%struct.A = type { i32 }
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define i32 @_Z3fooP1A(%struct.A* %a) nounwind uwtable ssp !dbg !5 {
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entry:
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%a.addr = alloca %struct.A*, align 8
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store %struct.A* %a, %struct.A** %a.addr, align 8
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call void @llvm.dbg.declare(metadata %struct.A** %a.addr, metadata !16, metadata !DIExpression()), !dbg !17
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%0 = load %struct.A*, %struct.A** %a.addr, align 8, !dbg !18
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%b = getelementptr inbounds %struct.A, %struct.A* %0, i32 0, i32 0, !dbg !18
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%1 = load i32, i32* %b, align 4, !dbg !18
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ret i32 %1, !dbg !18
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}
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declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!21}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.1 (trunk 150996)", isOptimized: false, emissionKind: FullDebug, file: !20, enums: !1, retainedTypes: !1, globals: !1, imports: !1)
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!1 = !{}
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!5 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooP1A", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 3, file: !20, scope: !6, type: !7)
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!6 = !DIFile(filename: "foo.cpp", directory: "/Users/echristo")
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!7 = !DISubroutineType(types: !8)
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!8 = !{!9, !10}
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!9 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!10 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, baseType: !11)
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!11 = !DICompositeType(tag: DW_TAG_class_type, name: "A", line: 1, size: 32, align: 32, file: !20, elements: !12)
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!12 = !{!13}
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!13 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 1, size: 32, align: 32, file: !20, scope: !11, baseType: !9)
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!16 = !DILocalVariable(name: "a", line: 3, arg: 1, scope: !5, file: !6, type: !10)
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!17 = !DILocation(line: 3, column: 13, scope: !5)
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!18 = !DILocation(line: 4, column: 3, scope: !19)
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!19 = distinct !DILexicalBlock(line: 3, column: 16, file: !20, scope: !5)
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!20 = !DIFile(filename: "foo.cpp", directory: "/Users/echristo")
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!21 = !{i32 1, !"Debug Info Version", i32 3}
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