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8ad792d2de
Since Split DWARF needs to name the actual .dwo file that is generated, it can't be known at the time the llvm::Module is produced as it may be merged with other Modules before the object is generated and that object may be generated with any name. By passing the Split DWARF file name when LLVM is producing object code the .dwo file name in the object file can match correctly. The support for Split DWARF for implicit modules remains the same - using metadata to store the dwo name and dwo id so that potentially multiple skeleton CUs referring to different dwo files can be generated from one llvm::Module. llvm-svn: 301062
99 lines
4.9 KiB
LLVM
99 lines
4.9 KiB
LLVM
; RUN: llc -split-dwarf-file=foo.dwo -O0 %s -mtriple=x86_64-unknown-linux-gnu -filetype=obj -o %t
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; RUN: llvm-dwarfdump -debug-dump=all %t | FileCheck %s
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; RUN: llvm-readobj --relocations %t | FileCheck --check-prefix=CHECK-RELOCS %s
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; From:
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; class A {
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; public:
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; A(int i = 0) : a(i) {}
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; private:
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; int a;
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; };
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;
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; A a;
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; With function sections enabled make sure that we have a DW_AT_ranges attribute.
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; CHECK: DW_AT_ranges
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; Check that we have a relocation against the .debug_ranges section.
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; CHECK-RELOCS: R_X86_64_32 .debug_ranges 0x0
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source_filename = "test/DebugInfo/X86/cu-ranges-odr.ll"
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%class.A = type { i32 }
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@a = global %class.A zeroinitializer, align 4, !dbg !0
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@llvm.global_ctors = appending global [1 x { i32, void ()* }] [{ i32, void ()* } { i32 65535, void ()* @_GLOBAL__I_a }]
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define internal void @__cxx_global_var_init() section ".text.startup" !dbg !18 {
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entry:
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call void @_ZN1AC2Ei(%class.A* @a, i32 0), !dbg !21
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ret void, !dbg !21
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}
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; Function Attrs: nounwind uwtable
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define linkonce_odr void @_ZN1AC2Ei(%class.A* %this, i32 %i) unnamed_addr #0 align 2 !dbg !22 {
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entry:
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%this.addr = alloca %class.A*, align 8
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%i.addr = alloca i32, align 4
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store %class.A* %this, %class.A** %this.addr, align 8
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call void @llvm.dbg.declare(metadata %class.A** %this.addr, metadata !23, metadata !25), !dbg !26
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store i32 %i, i32* %i.addr, align 4
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call void @llvm.dbg.declare(metadata i32* %i.addr, metadata !27, metadata !25), !dbg !28
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%this1 = load %class.A*, %class.A** %this.addr
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%a = getelementptr inbounds %class.A, %class.A* %this1, i32 0, i32 0, !dbg !28
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%0 = load i32, i32* %i.addr, align 4, !dbg !28
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store i32 %0, i32* %a, align 4, !dbg !28
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ret void, !dbg !28
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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define internal void @_GLOBAL__I_a() section ".text.startup" !dbg !29 {
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entry:
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call void @__cxx_global_var_init(), !dbg !31
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ret void, !dbg !31
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}
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attributes #0 = { nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!11}
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!llvm.module.flags = !{!15, !16}
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!llvm.ident = !{!17}
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!0 = !DIGlobalVariableExpression(var: !1)
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!1 = !DIGlobalVariable(name: "a", scope: null, file: !2, line: 8, type: !3, isLocal: false, isDefinition: true)
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!2 = !DIFile(filename: "baz.cpp", directory: "/usr/local/google/home/echristo/tmp")
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!3 = !DICompositeType(tag: DW_TAG_class_type, name: "A", file: !2, line: 1, size: 32, align: 32, elements: !4, identifier: "_ZTS1A")
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!4 = !{!5, !7}
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!5 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !3, file: !2, line: 5, baseType: !6, size: 32, align: 32, flags: DIFlagPrivate)
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!6 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!7 = !DISubprogram(name: "A", scope: !3, file: !2, line: 3, type: !8, isLocal: false, isDefinition: false, scopeLine: 3, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false)
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!8 = !DISubroutineType(types: !9)
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!9 = !{null, !10, !6}
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!10 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !3, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
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!11 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !2, producer: "clang version 3.5 (trunk 199923) (llvm/trunk 199940)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !12, retainedTypes: !13, globals: !14, imports: !12)
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!12 = !{}
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!13 = !{!3}
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!14 = !{!0}
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!15 = !{i32 2, !"Dwarf Version", i32 4}
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!16 = !{i32 1, !"Debug Info Version", i32 3}
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!17 = !{!"clang version 3.5 (trunk 199923) (llvm/trunk 199940)"}
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!18 = distinct !DISubprogram(name: "__cxx_global_var_init", scope: !2, file: !2, line: 8, type: !19, isLocal: true, isDefinition: true, scopeLine: 8, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !11, variables: !12)
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!19 = !DISubroutineType(types: !20)
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!20 = !{null}
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!21 = !DILocation(line: 8, scope: !18)
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!22 = distinct !DISubprogram(name: "A", linkageName: "_ZN1AC2Ei", scope: !3, file: !2, line: 3, type: !8, isLocal: false, isDefinition: true, scopeLine: 3, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !11, declaration: !7, variables: !12)
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!23 = !DILocalVariable(name: "this", arg: 1, scope: !22, type: !24, flags: DIFlagArtificial | DIFlagObjectPointer)
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!24 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !3, size: 64, align: 64)
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!25 = !DIExpression()
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!26 = !DILocation(line: 0, scope: !22)
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!27 = !DILocalVariable(name: "i", arg: 2, scope: !22, file: !2, line: 3, type: !6)
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!28 = !DILocation(line: 3, scope: !22)
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!29 = distinct !DISubprogram(linkageName: "_GLOBAL__I_a", scope: !2, file: !2, line: 3, type: !30, isLocal: true, isDefinition: true, scopeLine: 3, virtualIndex: 6, flags: DIFlagArtificial, isOptimized: false, unit: !11, variables: !12)
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!30 = !DISubroutineType(types: !12)
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!31 = !DILocation(line: 3, scope: !29)
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