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7d6813a6c8
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
76 lines
4.0 KiB
LLVM
76 lines
4.0 KiB
LLVM
; Test to ensure only the necessary DICompileUnit fields are imported
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; for ThinLTO
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; RUN: opt -module-summary %s -o %t1.bc
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; RUN: opt -module-summary %p/Inputs/debuginfo-cu-import.ll -o %t2.bc
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; RUN: llvm-lto -thinlto-action=thinlink -o %t.index.bc %t1.bc %t2.bc
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; Don't import enums, macros, retainedTypes or globals lists.
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; Only import local scope imported entities.
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; RUN: llvm-lto -thinlto-action=import %t2.bc -thinlto-index=%t.index.bc -o - | llvm-dis -o - | FileCheck %s
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; CHECK-NOT: DICompileUnit{{.*}} enums:
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; CHECK-NOT: DICompileUnit{{.*}} macros:
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; CHECK-NOT: DICompileUnit{{.*}} retainedTypes:
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; CHECK-NOT: DICompileUnit{{.*}} globals:
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; CHECK: DICompileUnit{{.*}} imports: ![[IMP:[0-9]+]]
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; CHECK: ![[IMP]] = !{!{{[0-9]+}}}
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; ModuleID = 'debuginfo-cu-import.c'
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source_filename = "debuginfo-cu-import.c"
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define void @foo() !dbg !28 {
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entry:
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ret void, !dbg !29
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}
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define void @_ZN1A1aEv() !dbg !13 {
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entry:
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ret void, !dbg !30
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}
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define internal void @_ZN1A1bEv() !dbg !31 {
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entry:
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ret void, !dbg !32
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!25, !26}
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!llvm.ident = !{!27}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 4.0.0 (trunk 286863) (llvm/trunk 286875)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !6, globals: !8, imports: !11, macros: !21)
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!1 = !DIFile(filename: "a2.cc", directory: "")
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!2 = !{!3}
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!3 = !DICompositeType(tag: DW_TAG_enumeration_type, name: "enum1", scope: !4, file: !1, line: 50, size: 32, elements: !5, identifier: "_ZTSN9__gnu_cxx12_Lock_policyE")
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!4 = !DINamespace(name: "A", scope: null)
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!5 = !{}
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!6 = !{!7}
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!7 = !DICompositeType(tag: DW_TAG_structure_type, name: "Base", file: !1, line: 1, size: 32, align: 32, elements: !5, identifier: "_ZTS4Base")
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!8 = !{!9}
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!9 = !DIGlobalVariableExpression(var: !10, expr: !DIExpression())
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!10 = !DIGlobalVariable(name: "version", scope: !4, file: !1, line: 2, type: !7, isLocal: false, isDefinition: true)
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!11 = !{!12, !16}
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!12 = !DIImportedEntity(tag: DW_TAG_imported_declaration, scope: !4, entity: !13, file: !1, line: 8)
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!13 = distinct !DISubprogram(name: "a", linkageName: "_ZN1A1aEv", scope: !4, file: !1, line: 7, type: !14, isLocal: false, isDefinition: true, scopeLine: 7, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !5)
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!14 = !DISubroutineType(types: !15)
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!15 = !{null}
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!16 = !DIImportedEntity(tag: DW_TAG_imported_declaration, scope: !17, entity: !19, file: !1, line: 8)
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!17 = distinct !DILexicalBlock(scope: !18, file: !1, line: 9, column: 8)
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!18 = distinct !DISubprogram(name: "c", linkageName: "_ZN1A1cEv", scope: !4, file: !1, line: 9, type: !14, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !5)
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!19 = distinct !DILexicalBlock(scope: !20, file: !1, line: 10, column: 8)
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!20 = distinct !DISubprogram(name: "d", linkageName: "_ZN1A1dEv", scope: !4, file: !1, line: 10, type: !14, isLocal: false, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !5)
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!21 = !{!22}
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!22 = !DIMacroFile(file: !1, nodes: !23)
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!23 = !{!24}
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!24 = !DIMacro(type: DW_MACINFO_define, line: 3, name: "X", value: "5")
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!25 = !{i32 2, !"Dwarf Version", i32 4}
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!26 = !{i32 2, !"Debug Info Version", i32 3}
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!27 = !{!"clang version 4.0.0 (trunk 286863) (llvm/trunk 286875)"}
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!28 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !14, isLocal: false, isDefinition: true, scopeLine: 2, isOptimized: false, unit: !0, variables: !5)
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!29 = !DILocation(line: 3, column: 1, scope: !28)
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!30 = !DILocation(line: 7, column: 12, scope: !13)
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!31 = distinct !DISubprogram(name: "b", linkageName: "_ZN1A1bEv", scope: !4, file: !1, line: 8, type: !14, isLocal: true, isDefinition: true, scopeLine: 8, flags: DIFlagPrototyped, isOptimized: false, unit: !0, variables: !5)
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!32 = !DILocation(line: 8, column: 24, scope: !31)
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