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de7484036b
Eliminate DITypeIdentifierMap and make DITypeRef a thin wrapper around DIType*. It is no longer legal to refer to a DICompositeType by its 'identifier:', and DIBuilder no longer retains all types with an 'identifier:' automatically. Aside from the bitcode upgrade, this is mainly removing logic to resolve an MDString-based reference to an actualy DIType. The commits leading up to this have made the implicit type map in DICompileUnit's 'retainedTypes:' field superfluous. This does not remove DITypeRef, DIScopeRef, DINodeRef, and DITypeRefArray, or stop using them in DI-related metadata. Although as of this commit they aren't serving a useful purpose, there are patchces under review to reuse them for CodeView support. The tests in LLVM were updated with deref-typerefs.sh, which is attached to the thread "[RFC] Lazy-loading of debug info metadata": http://lists.llvm.org/pipermail/llvm-dev/2016-April/098318.html git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@267296 91177308-0d34-0410-b5e6-96231b3b80d8
45 lines
1.9 KiB
LLVM
45 lines
1.9 KiB
LLVM
; struct A {
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; void foo();
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; };
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;
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; void (A::*p)() = &A::foo;
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;
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; RUN: llc -filetype=obj -o - %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
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; Check that the member function pointer is emitted without a DW_AT_size attribute.
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; CHECK: DW_TAG_ptr_to_member_type
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; CHECK-NOT: DW_AT_{{.*}}size
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; CHECK: DW_TAG
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;
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; ModuleID = 'memberfnptr.cpp'
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx"
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%struct.A = type { i8 }
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@p = global { i64, i64 } { i64 ptrtoint (void (%struct.A*)* @_ZN1A3fooEv to i64), i64 0 }, align 8
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declare void @_ZN1A3fooEv(%struct.A*)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!14, !15, !16}
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!llvm.ident = !{!17}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang version 3.6.0 ", isOptimized: false, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !3, globals: !10, imports: !2)
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!1 = !DIFile(filename: "memberfnptr.cpp", directory: "")
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!2 = !{}
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!3 = !{!4}
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!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "A", line: 1, size: 8, align: 8, file: !1, elements: !5, identifier: "_ZTS1A")
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!5 = !{!6}
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!6 = !DISubprogram(name: "foo", linkageName: "_ZN1A3fooEv", line: 2, isLocal: false, isDefinition: false, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !4, type: !7)
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!7 = !DISubroutineType(types: !8)
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!8 = !{null, !9}
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!9 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 64, align: 64, flags: DIFlagArtificial | DIFlagObjectPointer, baseType: !4)
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!10 = !{!11}
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!11 = !DIGlobalVariable(name: "p", line: 5, isLocal: false, isDefinition: true, scope: null, file: !12, type: !13, variable: { i64, i64 }* @p)
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!12 = !DIFile(filename: "memberfnptr.cpp", directory: "")
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!13 = !DIDerivedType(tag: DW_TAG_ptr_to_member_type, size: 64, baseType: !7, extraData: !4)
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!14 = !{i32 2, !"Dwarf Version", i32 2}
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!15 = !{i32 2, !"Debug Info Version", i32 3}
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!16 = !{i32 1, !"PIC Level", i32 2}
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!17 = !{!"clang version 3.6.0 "}
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