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1; RUN: llc -filetype=obj -O0 -generate-type-units -mtriple=x86_64-unknown-linux-gnu -split-dwarf-file=x.dwo < %s \2; RUN: | llvm-dwarfdump -debug-info -debug-types - \3; RUN: | FileCheck --implicit-check-not=Unit --implicit-check-not=contents --implicit-check-not=declaration %s4 5; Test that an address-using-with-Split-DWARF type unit that references a6; non-type unit is handled correctly. A NonTypeUnitContext is used to insulate7; the type construction from being discarded when the prior/outer type has to be8; discarded due to finding it used an address & so can't be type united under9; Split DWARF. 10 11; The intermediate types tu and t2 are here just to test a bit more12; thoroughly/broadly. They also demonstrate one slight limitation/sub-optimality13; since 't2' isn't put in a type unit.14 15 16; extern int foo;17; namespace {18; struct t1 {19; };20; }21; template <int *> struct t2 {22; t1 v1;23; };24; struct t3 {25; t2<&foo> v1;26; };27; t3 v1;28 29; CHECK: .debug_info contents:30; CHECK: Compile Unit:31 32; CHECK: .debug_info.dwo contents:33; CHECK: Compile Unit:34 35; FIXME: In theory "t3" could be in a type unit - but at the moment, because it36; references t2, which needs an address, t3 gets non-type-united.37; But the same doesn't happen if t3 referenced an anonymous namespace type.38 39; CHECK: DW_TAG_structure_type40; CHECK: DW_AT_name ("t3")41; CHECK: DW_TAG_member42; CHECK: DW_AT_type {{.*}} "t2<&foo>"43; CHECK: DW_TAG_structure_type44; CHECK: DW_AT_name ("t2<&foo>")45; CHECK: DW_TAG_member46; CHECK: DW_AT_name ("v1")47; CHECK: DW_AT_type ([[T1:0x[0-9a-f]*]] "(anonymous namespace)::t1")48; CHECK: DW_TAG_namespace49; CHECK: [[T1]]: DW_TAG_structure_type50; CHECK: DW_AT_name ("t1")51 52; CHECK: .debug_types contents:53 54; CHECK-NOT: .debug_types.dwo contents:55 56 57%struct.t3 = type { %struct.t2 }58%struct.t2 = type { %"struct.(anonymous namespace)::t1" }59%"struct.(anonymous namespace)::t1" = type { i8 }60 61@v1 = dso_local global %struct.t3 zeroinitializer, align 1, !dbg !062@foo = external dso_local global i32, align 463 64!llvm.dbg.cu = !{!2}65!llvm.module.flags = !{!18, !19, !20}66!llvm.ident = !{!21}67 68!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())69!1 = distinct !DIGlobalVariable(name: "v1", scope: !2, file: !3, line: 16, type: !6, isLocal: false, isDefinition: true)70!2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !3, producer: "clang version 12.0.0 (git@github.com:llvm/llvm-project.git be646ae2865371c7a4966797e88f355de5653e04)", isOptimized: false, runtimeVersion: 0, splitDebugFilename: "test.dwo", emissionKind: FullDebug, enums: !4, globals: !5, splitDebugInlining: false, nameTableKind: GNU)71!3 = !DIFile(filename: "test.cpp", directory: "/usr/local/google/home/blaikie/dev/scratch")72!4 = !{}73!5 = !{!0}74!6 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "t3", file: !3, line: 12, size: 8, flags: DIFlagTypePassByValue, elements: !7, identifier: "_ZTS2t3")75!7 = !{!8}76!8 = !DIDerivedType(tag: DW_TAG_member, name: "v1", scope: !6, file: !3, line: 13, baseType: !9, size: 8)77!9 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "t2<&foo>", file: !3, line: 8, size: 8, flags: DIFlagTypePassByValue, elements: !10, templateParams: !14, identifier: "_ZTS2t2IXadL_Z3fooEEE")78!10 = !{!11}79!11 = !DIDerivedType(tag: DW_TAG_member, name: "v1", scope: !9, file: !3, line: 9, baseType: !12, size: 8)80!12 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "t1", scope: !13, file: !3, line: 4, size: 8, flags: DIFlagTypePassByValue, elements: !4)81!13 = !DINamespace(scope: null)82!14 = !{!15}83!15 = !DITemplateValueParameter(type: !16, value: ptr @foo)84!16 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !17, size: 64)85!17 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)86!18 = !{i32 7, !"Dwarf Version", i32 4}87!19 = !{i32 2, !"Debug Info Version", i32 3}88!20 = !{i32 1, !"wchar_size", i32 4}89!21 = !{!"clang version 12.0.0 (git@github.com:llvm/llvm-project.git be646ae2865371c7a4966797e88f355de5653e04)"}90