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01c483fca6
ptr_to_member. We introduce a new class DITypeRef that represents a reference to a DIType. It wraps around a Value*, which can be either an identifier in MDString or an actual MDNode. The class has a helper function "resolve" that finds the actual MDNode for a given DITypeRef. We specialize getFieldAs to return a field that is a reference to a DIType. To correctly access the base type field of ptr_to_member, getClassType now calls getFieldAs<DITypeRef> to return a DITypeRef. Also add a typedef for DITypeIdentifierMap and a helper generateDITypeIdentifierMap in DebugInfo.h. In DwarfDebug.cpp, we keep a DITypeIdentifierMap and call generateDITypeIdentifierMap to actually populate the map. Verifier is updated accordingly. llvm-svn: 190081
30 lines
1.7 KiB
LLVM
30 lines
1.7 KiB
LLVM
; REQUIRES: object-emission
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; RUN: llc -filetype=obj -O0 < %s > %t
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; RUN: llvm-dwarfdump -debug-dump=info %t | FileCheck %s
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; CHECK: [[TYPE:.*]]: DW_TAG_base_type
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; CHECK: DW_TAG_ptr_to_member_type
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; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] (cu + {{.*}} => {[[TYPE]]})
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; IR generated from clang -g with the following source:
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; struct Foo {
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; int e;
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; };
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; int Foo:*x = 0;
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@x = global i64 -1, align 8
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!10}
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!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.4", i1 false, metadata !"", i32 0, metadata !2, metadata !3, metadata !2, metadata !5, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [foo.cpp] [DW_LANG_C_plus_plus]
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!1 = metadata !{metadata !"foo.cpp", metadata !"."}
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!2 = metadata !{i32 0}
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!3 = metadata !{metadata !4}
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!4 = metadata !{i32 786451, metadata !1, null, metadata !"Foo", i32 1, i64 0, i64 0, i32 0, i32 4, null, null, i32 0, null, null, metadata !"_ZTS3Foo"} ; [ DW_TAG_structure_type ] [Foo] [line 1, size 0, align 0, offset 0] [decl] [from ]
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!5 = metadata !{metadata !6}
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!6 = metadata !{i32 786484, i32 0, null, metadata !"x", metadata !"x", metadata !"", metadata !7, i32 4, metadata !8, i32 0, i32 1, i64* @x, null} ; [ DW_TAG_variable ] [x] [line 4] [def]
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!7 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [foo.cpp]
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!8 = metadata !{i32 786463, null, null, null, i32 0, i64 0, i64 0, i64 0, i32 0, metadata !9, metadata !"_ZTS3Foo"} ; [ DW_TAG_ptr_to_member_type ] [line 0, size 0, align 0, offset 0] [from int]
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!9 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
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!10 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
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