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a9fbb2813b
This patch reverses the edge from DIGlobalVariable to GlobalVariable. This will allow us to more easily preserve debug info metadata when manipulating global variables. Fixes PR30362. A program for upgrading test cases is attached to that bug. Differential Revision: http://reviews.llvm.org/D20147 llvm-svn: 281284
63 lines
3.6 KiB
LLVM
63 lines
3.6 KiB
LLVM
; RUN: llc -O0 %s -mtriple=x86_64-apple-darwin -filetype=obj -o %t
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; RUN: llvm-dwarfdump %t | FileCheck %s
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; rdar://13071590
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; Check we are not emitting mutliple AT_const_value for a single member.
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; CHECK: .debug_info contents:
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; CHECK: DW_TAG_compile_unit
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; CHECK: DW_TAG_class_type
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; CHECK: DW_TAG_member
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; CHECK: badbit
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; CHECK: DW_AT_const_value [DW_FORM_sdata] (1)
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; CHECK-NOT: DW_AT_const_value
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; CHECK: NULL
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%"class.std::basic_ostream" = type { i32 (...)**, %"class.std::basic_os" }
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%"class.std::basic_os" = type { %"class.std::os_base", %"class.std::basic_ostream"*, i8, i8 }
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%"class.std::os_base" = type { i32 (...)**, i64, i64, i32, i32, i32 }
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@_ZSt4cout = external global %"class.std::basic_ostream"
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@.str = private unnamed_addr constant [6 x i8] c"c is \00", align 1
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define i32 @main() !dbg !960 {
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entry:
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%call1.i = tail call %"class.std::basic_ostream"* @test(%"class.std::basic_ostream"* @_ZSt4cout, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0), i64 5)
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ret i32 0
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}
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declare %"class.std::basic_ostream"* @test(%"class.std::basic_ostream"*, i8*, i64)
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!1803}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.3 (trunk 174207)", isOptimized: true, emissionKind: FullDebug, file: !1802, enums: !1, retainedTypes: !955, globals: !1786, imports: !955)
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!1 = !{!26}
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!4 = !DINamespace(name: "std", line: 48, scope: !5)
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!5 = !DIFile(filename: "os_base.h", directory: "/privite/tmp")
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!25 = !DIEnumerator(name: "_S_os_fmtflags_end", value: 65536) ; [ DW_TAG_enumerator ]
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!26 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "_Ios_Iostate", line: 146, size: 32, align: 32, file: !1801, scope: !4, elements: !27)
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!27 = !{!28, !29, !30, !31, !32}
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!28 = !DIEnumerator(name: "_S_goodbit", value: 0) ; [ DW_TAG_enumerator ] [_S_goodbit :: 0]
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!29 = !DIEnumerator(name: "_S_badbit", value: 1) ; [ DW_TAG_enumerator ] [_S_badbit :: 1]
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!30 = !DIEnumerator(name: "_S_eofbit", value: 2) ; [ DW_TAG_enumerator ] [_S_eofbit :: 2]
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!31 = !DIEnumerator(name: "_S_failbit", value: 4) ; [ DW_TAG_enumerator ] [_S_failbit :: 4]
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!32 = !DIEnumerator(name: "_S_os_ostate_end", value: 65536) ; [ DW_TAG_enumerator ] [_S_os_ostate_end :: 65536]
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!49 = !DICompositeType(tag: DW_TAG_class_type, name: "os_base", line: 200, size: 1728, align: 64, file: !1801, scope: !4, elements: !50, vtableHolder: !49)
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!50 = !{!77}
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!54 = !DISubroutineType(types: !55)
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!55 = !{!56}
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!56 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!77 = !DIDerivedType(tag: DW_TAG_member, name: "badbit", line: 331, flags: DIFlagStaticMember, file: !1801, scope: !49, baseType: !78, extraData: i32 1)
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!78 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !79)
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!79 = !DIDerivedType(tag: DW_TAG_typedef, name: "ostate", line: 327, file: !1801, scope: !49, baseType: !26)
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!955 = !{}
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!960 = distinct !DISubprogram(name: "main", line: 73, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 73, file: !1802, scope: null, type: !54, variables: !955)
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!961 = !DIFile(filename: "student2.cpp", directory: "/privite/tmp")
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!1786 = !{!1800}
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!1800 = !DIGlobalVariable(name: "badbit", linkageName: "badbit", line: 331, isLocal: true, isDefinition: true, scope: !5, file: !5, type: !78, expr: !DIExpression(DW_OP_constu, 1, DW_OP_stack_value), declaration: !77)
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!1801 = !DIFile(filename: "os_base.h", directory: "/privite/tmp")
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!1802 = !DIFile(filename: "student2.cpp", directory: "/privite/tmp")
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!1803 = !{i32 1, !"Debug Info Version", i32 3}
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