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995a26bf12
Summary: Original description (https://reviews.llvm/org/D69924) Without this change, when a nested tag type of any kind (enum, class, struct, union) is used as a variable type, it is emitted without emitting the parent type. In CodeView, parent types point to their inner types, and inner types do not point back to their parents. We already walk over all of the parent scopes to build the fully qualified name. This change simply requests their type indices as we go along to enusre they are all emitted. Now, while walking over the parent scopes, add the types to DeferredCompleteTypes, since they might already be in the process of being emitted. Fixes PR43905 Reviewers: rnk, amccarth Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D78249
52 lines
2.3 KiB
LLVM
52 lines
2.3 KiB
LLVM
; RUN: llc < %s -filetype=obj -o %t.o
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; RUN: llvm-pdbutil dump -types %t.o | FileCheck %s
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; C source to regenerate:
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; $ clang -g -gcodeview -S -emit-llvm t.c
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; $ cat t.c
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; struct {
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; union {
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; struct {};
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; };
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; } S;
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; Test that this compiles without errors.
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; CHECK: LF_STRUCTURE{{.*}}<unnamed-tag>::<unnamed-tag>::<unnamed-tag>
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; CHECK: LF_UNION{{.*}}<unnamed-tag>::<unnamed-tag>
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; CHECK: LF_STRUCTURE{{.*}}<unnamed-tag>
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; ModuleID = 't.c'
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source_filename = "t.c"
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target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc19.24.28316"
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%struct.anon = type { %union.anon }
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%union.anon = type { %struct.anon.0 }
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%struct.anon.0 = type { [4 x i8] }
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@S = dso_local global %struct.anon zeroinitializer, align 1, !dbg !0
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!13, !14, !15, !16}
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!llvm.ident = !{!17}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "S", scope: !2, file: !3, line: 5, type: !6, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 11.0.0 (https://github.com/llvm/llvm-project.git 60d09bec7f8699728d38057430422d955d32a904)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, nameTableKind: None)
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!3 = !DIFile(filename: "t.c", directory: "C:\\src\\llvm-build", checksumkind: CSK_MD5, checksum: "c31fe86676dd2fb56f847f926c0f2c71")
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!4 = !{}
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!5 = !{!0}
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!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, file: !3, line: 1, size: 32, elements: !7)
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!7 = !{!8, !12}
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!8 = distinct !DICompositeType(tag: DW_TAG_union_type, scope: !6, file: !3, line: 2, size: 32, elements: !9)
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!9 = !{!10, !11}
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!10 = distinct !DICompositeType(tag: DW_TAG_structure_type, scope: !8, file: !3, line: 3, size: 32, elements: !4)
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!11 = !DIDerivedType(tag: DW_TAG_member, scope: !8, file: !3, line: 3, baseType: !10, size: 32)
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!12 = !DIDerivedType(tag: DW_TAG_member, scope: !6, file: !3, line: 2, baseType: !8, size: 32)
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!13 = !{i32 2, !"CodeView", i32 1}
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!14 = !{i32 2, !"Debug Info Version", i32 3}
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!15 = !{i32 1, !"wchar_size", i32 2}
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!16 = !{i32 7, !"PIC Level", i32 2}
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!17 = !{!"clang version 11.0.0 (https://github.com/llvm/llvm-project.git 60d09bec7f8699728d38057430422d955d32a904)"}
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