05782218ab
This change simplifies code that has to deal with DIGlobalVariableExpression and mirrors how we treat DIExpressions in debug info intrinsics. Before this change there were two ways of representing empty expressions on globals, a nullptr and an empty !DIExpression(). If someone needs to upgrade out-of-tree testcases: perl -pi -e 's/(!DIGlobalVariableExpression\(var: ![0-9]*)\)/\1, expr: !DIExpression())/g' <MYTEST.ll> will catch 95%. llvm-svn: 312144
65 lines
3.4 KiB
LLVM
65 lines
3.4 KiB
LLVM
; REQUIRES: object-emission
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; RUN: %llc_dwarf -O0 -filetype=obj < %s > %t
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; RUN: llvm-dwarfdump %t | FileCheck %s
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; This was pulled from clang's debug-info-template-recursive.cpp test.
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; class base { };
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; template <class T> class foo : public base {
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; void operator=(const foo r) { }
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; };
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; class bar : public foo<void> { };
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; bar filters;
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; CHECK: DW_TAG_template_type_parameter [{{.*}}]
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; CHECK-NEXT: DW_AT_name{{.*}}"T"
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; CHECK-NOT: DW_AT_type
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; CHECK: NULL
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source_filename = "test/DebugInfo/Generic/template-recursive-void.ll"
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%class.bar = type { i8 }
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@filters = global %class.bar zeroinitializer, align 1, !dbg !0
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!llvm.dbg.cu = !{!29}
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!llvm.module.flags = !{!32, !33}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = !DIGlobalVariable(name: "filters", scope: null, file: !2, line: 10, type: !3, isLocal: false, isDefinition: true)
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!2 = !DIFile(filename: "debug-info-template-recursive.cpp", directory: "/usr/local/google/home/echristo/tmp")
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!3 = !DICompositeType(tag: DW_TAG_class_type, name: "bar", file: !2, line: 9, size: 8, align: 8, elements: !4)
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!4 = !{!5, !25}
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!5 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !3, baseType: !6)
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!6 = !DICompositeType(tag: DW_TAG_class_type, name: "foo<void>", file: !2, line: 5, size: 8, align: 8, elements: !7, templateParams: !23)
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!7 = !{!8, !15, !20}
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!8 = !DIDerivedType(tag: DW_TAG_inheritance, scope: !6, baseType: !9)
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!9 = !DICompositeType(tag: DW_TAG_class_type, name: "base", file: !2, line: 3, size: 8, align: 8, elements: !10)
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!10 = !{!11}
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!11 = !DISubprogram(name: "base", scope: !9, file: !2, line: 3, type: !12, isLocal: false, isDefinition: false, scopeLine: 3, virtualIndex: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false)
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!12 = !DISubroutineType(types: !13)
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!13 = !{null, !14}
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!14 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !9, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
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!15 = !DISubprogram(name: "operator=", linkageName: "_ZN3fooIvEaSES0_", scope: !6, file: !2, line: 6, type: !16, isLocal: false, isDefinition: false, scopeLine: 6, virtualIndex: 6, flags: DIFlagPrivate | DIFlagPrototyped, isOptimized: false)
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!16 = !DISubroutineType(types: !17)
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!17 = !{null, !18, !19}
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!18 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !6, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
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!19 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !6)
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!20 = !DISubprogram(name: "foo", scope: !6, file: !2, line: 5, type: !21, isLocal: false, isDefinition: false, scopeLine: 5, virtualIndex: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false)
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!21 = !DISubroutineType(types: !22)
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!22 = !{null, !18}
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!23 = !{!24}
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!24 = !DITemplateTypeParameter(name: "T", type: null)
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!25 = !DISubprogram(name: "bar", scope: !3, file: !2, line: 9, type: !26, isLocal: false, isDefinition: false, scopeLine: 9, virtualIndex: 6, flags: DIFlagArtificial | DIFlagPrototyped, isOptimized: false)
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!26 = !DISubroutineType(types: !27)
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!27 = !{null, !28}
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!28 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !3, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
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!29 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "clang version 3.4 (trunk 187958) (llvm/trunk 187964)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !30, retainedTypes: !30, globals: !31, imports: !30)
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!30 = !{}
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!31 = !{!0}
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!32 = !{i32 2, !"Dwarf Version", i32 3}
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!33 = !{i32 1, !"Debug Info Version", i32 3}
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