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cbfbb3ee4c
Add a verifier check that `DILocalVariable`s of tag
`DW_TAG_arg_variable` always have a non-zero 'arg:' field, and those of
tag `DW_TAG_auto_variable` always have a zero 'arg:' field. These are
the only configurations that are properly understood by the backend.
(Also, fix the bad examples in LangRef and test/Assembler, and fix the
bug in Kaleidoscope Ch8.)
A large number of testcases seem to have bitrotted their way forward
from some ancient version of the debug info hierarchy that didn't have
`arg:` parameters. If you have out-of-tree testcases that start failing
in the verifier and you don't care enough to get the `arg:` right, you
may have some luck just calling:
sed -e 's/, arg: 0/, arg: 1/'
or some such, but I hand-updated the ones in tree.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243183 91177308-0d34-0410-b5e6-96231b3b80d8
113 lines
6.2 KiB
LLVM
113 lines
6.2 KiB
LLVM
; REQUIRES: object-emission
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; RUN: %llc_dwarf -O0 -filetype=obj -o - < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
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; Radar 7833483
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; Do not emit a separate out-of-line definition DIE for the function-local 'foo'
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; function (member of the function local 'A' type)
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; CHECK: DW_TAG_class_type
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; CHECK: DW_TAG_class_type
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; CHECK-NEXT: DW_AT_name {{.*}} "A"
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; Check that the subprogram inside the class definition has low_pc, only
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; attached to the definition.
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; CHECK: [[FOO_INL:0x........]]: DW_TAG_subprogram
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_low_pc
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; CHECK-NOT: DW_TAG
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; CHECK: DW_AT_linkage_name {{.*}} "_ZZN1B2fnEvEN1A3fooEv"
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; And just double check that there's no out of line definition that references
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; this subprogram.
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; CHECK-NOT: DW_AT_specification {{.*}} {[[FOO_INL]]}
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%class.A = type { i8 }
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%class.B = type { i8 }
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define i32 @main() ssp {
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entry:
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%retval = alloca i32, align 4 ; <i32*> [#uses=3]
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%b = alloca %class.A, align 1 ; <%class.A*> [#uses=1]
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store i32 0, i32* %retval
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call void @llvm.dbg.declare(metadata %class.A* %b, metadata !0, metadata !DIExpression()), !dbg !14
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%call = call i32 @_ZN1B2fnEv(%class.A* %b), !dbg !15 ; <i32> [#uses=1]
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store i32 %call, i32* %retval, !dbg !15
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%0 = load i32, i32* %retval, !dbg !16 ; <i32> [#uses=1]
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ret i32 %0, !dbg !16
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}
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declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
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define linkonce_odr i32 @_ZN1B2fnEv(%class.A* %this) ssp align 2 {
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entry:
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%retval = alloca i32, align 4 ; <i32*> [#uses=2]
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%this.addr = alloca %class.A*, align 8 ; <%class.A**> [#uses=2]
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%a = alloca %class.A, align 1 ; <%class.A*> [#uses=1]
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%i = alloca i32, align 4 ; <i32*> [#uses=2]
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store %class.A* %this, %class.A** %this.addr
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call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !17, metadata !DIExpression()), !dbg !18
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%this1 = load %class.A*, %class.A** %this.addr ; <%class.A*> [#uses=0]
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call void @llvm.dbg.declare(metadata %class.A* %a, metadata !19, metadata !DIExpression()), !dbg !27
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call void @llvm.dbg.declare(metadata i32* %i, metadata !28, metadata !DIExpression()), !dbg !29
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%call = call i32 @_ZZN1B2fnEvEN1A3fooEv(%class.A* %a), !dbg !30 ; <i32> [#uses=1]
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store i32 %call, i32* %i, !dbg !30
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%tmp = load i32, i32* %i, !dbg !31 ; <i32> [#uses=1]
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store i32 %tmp, i32* %retval, !dbg !31
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%0 = load i32, i32* %retval, !dbg !32 ; <i32> [#uses=1]
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ret i32 %0, !dbg !32
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}
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define internal i32 @_ZZN1B2fnEvEN1A3fooEv(%class.A* %this) ssp align 2 {
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entry:
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%retval = alloca i32, align 4 ; <i32*> [#uses=2]
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%this.addr = alloca %class.A*, align 8 ; <%class.A**> [#uses=2]
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store %class.A* %this, %class.A** %this.addr
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call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !33, metadata !DIExpression()), !dbg !34
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%this1 = load %class.A*, %class.A** %this.addr ; <%class.A*> [#uses=0]
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store i32 42, i32* %retval, !dbg !35
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%0 = load i32, i32* %retval, !dbg !35 ; <i32> [#uses=1]
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ret i32 %0, !dbg !35
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}
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!llvm.dbg.cu = !{!4}
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!llvm.module.flags = !{!40}
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!37 = !{!2, !10, !23}
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!0 = !DILocalVariable(tag: DW_TAG_auto_variable, name: "b", line: 16, scope: !1, file: !3, type: !8)
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!1 = distinct !DILexicalBlock(line: 15, column: 12, file: !38, scope: !2)
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!2 = !DISubprogram(name: "main", linkageName: "main", line: 15, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 15, file: !38, scope: !3, type: !5, function: i32 ()* @main)
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!3 = !DIFile(filename: "one.cc", directory: "/tmp")
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!4 = !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang 1.5", isOptimized: false, emissionKind: 0, file: !38, enums: !39, retainedTypes: !39, subprograms: !37, imports: null)
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!5 = !DISubroutineType(types: !6)
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!6 = !{!7}
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!7 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!8 = !DICompositeType(tag: DW_TAG_class_type, name: "B", line: 2, size: 8, align: 8, file: !38, scope: !3, elements: !9)
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!9 = !{!10}
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!10 = !DISubprogram(name: "fn", linkageName: "_ZN1B2fnEv", line: 4, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 4, file: !38, scope: !8, type: !11, function: i32 (%class.A*)* @_ZN1B2fnEv)
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!11 = !DISubroutineType(types: !12)
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!12 = !{!7, !13}
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!13 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial, file: !38, scope: !3, baseType: !8)
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!14 = !DILocation(line: 16, column: 5, scope: !1)
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!15 = !DILocation(line: 17, column: 3, scope: !1)
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!16 = !DILocation(line: 18, column: 1, scope: !2)
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!17 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "this", line: 4, arg: 1, scope: !10, file: !3, type: !13)
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!18 = !DILocation(line: 4, column: 7, scope: !10)
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!19 = !DILocalVariable(tag: DW_TAG_auto_variable, name: "a", line: 9, scope: !20, file: !3, type: !21)
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!20 = distinct !DILexicalBlock(line: 4, column: 12, file: !38, scope: !10)
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!21 = !DICompositeType(tag: DW_TAG_class_type, name: "A", line: 5, size: 8, align: 8, file: !38, scope: !10, elements: !22)
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!22 = !{!23}
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!23 = !DISubprogram(name: "foo", linkageName: "_ZZN1B2fnEvEN1A3fooEv", line: 7, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: false, scopeLine: 7, file: !38, scope: !21, type: !24, function: i32 (%class.A*)* @_ZZN1B2fnEvEN1A3fooEv)
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!24 = !DISubroutineType(types: !25)
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!25 = !{!7, !26}
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!26 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial, file: !38, scope: !3, baseType: !21)
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!27 = !DILocation(line: 9, column: 7, scope: !20)
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!28 = !DILocalVariable(tag: DW_TAG_auto_variable, name: "i", line: 10, scope: !20, file: !3, type: !7)
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!29 = !DILocation(line: 10, column: 9, scope: !20)
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!30 = !DILocation(line: 10, column: 5, scope: !20)
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!31 = !DILocation(line: 11, column: 5, scope: !20)
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!32 = !DILocation(line: 12, column: 3, scope: !10)
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!33 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "this", line: 7, arg: 1, scope: !23, file: !3, type: !26)
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!34 = !DILocation(line: 7, column: 11, scope: !23)
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!35 = !DILocation(line: 7, column: 19, scope: !36)
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!36 = distinct !DILexicalBlock(line: 7, column: 17, file: !38, scope: !23)
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!38 = !DIFile(filename: "one.cc", directory: "/tmp")
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!39 = !{}
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!40 = !{i32 1, !"Debug Info Version", i32 3}
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