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37ec73c718
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 llvm-svn: 312970
43 lines
2.0 KiB
LLVM
43 lines
2.0 KiB
LLVM
; RUN: llc %s -mtriple=x86_64-pc-linux-gnu -O0 -filetype=obj -o %t
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; RUN: llvm-dwarfdump -debug-info %t | FileCheck %s
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; If stack is realigned, we shouldn't describe locations of local
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; variables by giving offset from the frame pointer (%rbp):
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; push %rpb
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; mov %rsp,%rbp
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; and ALIGNMENT,%rsp ; (%rsp and %rbp are different now)
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; It's better to use offset from %rsp instead.
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; DW_AT_location of variable "x" shouldn't be equal to
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; (DW_OP_fbreg: .*): DW_OP_fbreg has code 0x91
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; CHECK: {{0x.* DW_TAG_variable}}
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; CHECK-NOT: {{DW_AT_location.*DW_FORM_block1.*0x.*91}}
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; CHECK: NULL
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define void @_Z3runv() nounwind uwtable !dbg !5 {
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entry:
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%x = alloca i32, align 32
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call void @llvm.dbg.declare(metadata i32* %x, metadata !9, metadata !DIExpression()), !dbg !12
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ret void, !dbg !13
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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 = !{!15}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.2 (trunk 155696:155697) (llvm/trunk 155696)", isOptimized: false, emissionKind: FullDebug, file: !14, enums: !1, retainedTypes: !1, globals: !1, imports: !1)
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!1 = !{}
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!5 = distinct !DISubprogram(name: "run", linkageName: "_Z3runv", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, scopeLine: 1, file: !14, scope: !6, type: !7, variables: !1)
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!6 = !DIFile(filename: "test.cc", directory: "/home/samsonov/debuginfo")
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!7 = !DISubroutineType(types: !8)
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!8 = !{null}
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!9 = !DILocalVariable(name: "x", line: 2, scope: !10, file: !6, type: !11)
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!10 = distinct !DILexicalBlock(line: 1, column: 12, file: !14, scope: !5)
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!11 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!12 = !DILocation(line: 2, column: 7, scope: !10)
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!13 = !DILocation(line: 3, column: 1, scope: !10)
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!14 = !DIFile(filename: "test.cc", directory: "/home/samsonov/debuginfo")
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!15 = !{i32 1, !"Debug Info Version", i32 3}
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