| // RUN: rm -rf %t | 
 | // Test that only forward declarations are emitted for types defined in modules. | 
 |  | 
 | // Modules: | 
 | // RUN: %clang_cc1 -x objective-c++ -std=c++11 -debug-info-kind=standalone \ | 
 | // RUN:     -dwarf-ext-refs -fmodules                                   \ | 
 | // RUN:     -fmodule-format=obj -fimplicit-module-maps -DMODULES \ | 
 | // RUN:     -triple %itanium_abi_triple \ | 
 | // RUN:     -fmodules-cache-path=%t %s -I %S/Inputs -I %t -emit-llvm -o %t-mod.ll | 
 | // RUN: cat %t-mod.ll |  FileCheck %s | 
 |  | 
 | // PCH: | 
 | // RUN: %clang_cc1 -x c++ -std=c++11 -fmodule-format=obj -emit-pch -I%S/Inputs \ | 
 | // RUN:     -triple %itanium_abi_triple \ | 
 | // RUN:     -o %t.pch %S/Inputs/DebugCXX.h | 
 | // RUN: %clang_cc1 -std=c++11 -debug-info-kind=standalone \ | 
 | // RUN:     -dwarf-ext-refs -fmodule-format=obj \ | 
 | // RUN:     -triple %itanium_abi_triple \ | 
 | // RUN:     -include-pch %t.pch %s -emit-llvm -o %t-pch.ll | 
 | // RUN: cat %t-pch.ll |  FileCheck %s | 
 | // RUN: cat %t-pch.ll |  FileCheck %s --check-prefix=CHECK-PCH | 
 |  | 
 | #ifdef MODULES | 
 | @import DebugCXX; | 
 | #endif | 
 |  | 
 | using DebugCXX::Struct; | 
 |  | 
 | Struct s; | 
 | DebugCXX::Enum e; | 
 |  | 
 | // Template instantiations. | 
 | DebugCXX::Template<long> implicitTemplate; | 
 | DebugCXX::Template<int> explicitTemplate; | 
 | DebugCXX::FloatInstantiation typedefTemplate; | 
 | DebugCXX::B anchoredTemplate; | 
 |  | 
 | int Struct::static_member = -1; | 
 | enum { | 
 |   e3 = -1 | 
 | } conflicting_uid = e3; | 
 | auto anon_enum = DebugCXX::e2; | 
 | char _anchor = anon_enum + conflicting_uid; | 
 |  | 
 | TypedefUnion tdu; | 
 | TypedefEnum tde; | 
 | TypedefStruct tds; | 
 | TypedefTemplate tdt; | 
 | Template1<int> explicitTemplate1; | 
 |  | 
 | template <class T> class FwdDeclTemplate { T t; }; | 
 | TypedefFwdDeclTemplate tdfdt; | 
 |  | 
 | InAnonymousNamespace anon; | 
 |  | 
 | // Types that are forward-declared in the module and defined here. | 
 | struct PureFwdDecl { int i; }; | 
 | PureFwdDecl definedLocally; | 
 |  | 
 | struct Specialized<int>::Member { int i; }; | 
 | struct Specialized<int>::Member definedLocally2; | 
 |  | 
 | template <class T> struct FwdDeclTemplateMember<T>::Member { T t; }; | 
 | TypedefFwdDeclTemplateMember tdfdtm; | 
 |  | 
 | SpecializedBase definedLocally3; | 
 | extern template class WithSpecializedBase<int>; | 
 | WithSpecializedBase<int> definedLocally4; | 
 |  | 
 | void foo() { | 
 |   anon.i = GlobalStruct.i = GlobalUnion.i = GlobalEnum; | 
 |   A a; | 
 |   Virtual virt; | 
 | } | 
 |  | 
 | // CHECK: ![[CPP:.*]] = !DIFile(filename: {{.*}}ExtDebugInfo.cpp" | 
 |  | 
 | // CHECK: !DICompositeType(tag: DW_TAG_enumeration_type, name: "Enum", | 
 | // CHECK-SAME:             scope: ![[NS:[0-9]+]], | 
 | // CHECK-SAME:             flags: DIFlagFwdDecl, | 
 | // CHECK-SAME:             identifier:  "_ZTSN8DebugCXX4EnumE") | 
 |  | 
 | // CHECK: ![[NS]] = !DINamespace(name: "DebugCXX", scope: ![[MOD:[0-9]+]]) | 
 | // CHECK: ![[MOD]] = !DIModule(scope: null, name: {{.*}}DebugCXX | 
 |  | 
 | // This type is anchored in the module by an explicit template instantiation. | 
 | // CHECK: !DICompositeType(tag: DW_TAG_class_type, | 
 | // CHECK-SAME:             name: "Template<long, DebugCXX::traits<long> >", | 
 | // CHECK-SAME:             scope: ![[NS]], | 
 | // CHECK-SAME:             flags: DIFlagFwdDecl, | 
 | // CHECK-SAME:             identifier: "_ZTSN8DebugCXX8TemplateIlNS_6traitsIlEEEE") | 
 |  | 
 | // This type is anchored in the module by an explicit template instantiation. | 
 | // CHECK: !DICompositeType(tag: DW_TAG_class_type, | 
 | // CHECK-SAME:             name: "Template<int, DebugCXX::traits<int> >", | 
 | // CHECK-SAME:             scope: ![[NS]], | 
 | // CHECK-SAME:             flags: DIFlagFwdDecl, | 
 | // CHECK-SAME:             identifier: "_ZTSN8DebugCXX8TemplateIiNS_6traitsIiEEEE") | 
 |  | 
 | // This type isn't, however, even with standalone non-module debug info this | 
 | // type is a forward declaration. | 
 | // CHECK-NOT: !DICompositeType(tag: DW_TAG_structure_type, name: "traits<int>", | 
 |  | 
 | // This one isn't. | 
 | // CHECK: !DICompositeType(tag: DW_TAG_class_type, | 
 | // CHECK-SAME:             name: "Template<float, DebugCXX::traits<float> >", | 
 | // CHECK-SAME:             scope: ![[NS]], | 
 | // CHECK-SAME:             elements: | 
 | // CHECK-SAME:             templateParams: | 
 | // CHECK-SAME:             identifier: "_ZTSN8DebugCXX8TemplateIfNS_6traitsIfEEEE") | 
 |  | 
 | // This type is anchored in the module by an explicit template instantiation. | 
 | // CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "traits<float>", | 
 | // CHECK-SAME:             flags: DIFlagFwdDecl, | 
 | // CHECK-SAME:             identifier: "_ZTSN8DebugCXX6traitsIfEE") | 
 |  | 
 |  | 
 | // This type is anchored in the module via a function argument, | 
 | // but we don't know this (yet). | 
 | // CHECK: !DICompositeType(tag: DW_TAG_class_type, name: "A<void>", | 
 | // CHECK-SAME:             scope: ![[NS]], | 
 | // CHECK-SAME:             elements: | 
 | // CHECK-SAME:             identifier: "_ZTSN8DebugCXX1AIJvEEE") | 
 |  | 
 | // CHECK: !DIDerivedType(tag: DW_TAG_member, name: "static_member", | 
 | // CHECK-SAME:           scope: ![[STRUCT:[0-9]*]] | 
 |  | 
 | // CHECK: ![[STRUCT]] = !DICompositeType(tag: DW_TAG_structure_type, name: "Struct", | 
 | // CHECK-SAME:             scope: ![[NS]], | 
 | // CHECK-SAME:             flags: DIFlagFwdDecl, | 
 | // CHECK-SAME:             identifier: "_ZTSN8DebugCXX6StructE") | 
 |  | 
 | // CHECK: !DICompositeType(tag: DW_TAG_union_type, | 
 | // CHECK-SAME:             flags: DIFlagFwdDecl, | 
 | // CHECK-SAME:             identifier: "_ZTS12TypedefUnion") | 
 | // CHECK: !DICompositeType(tag: DW_TAG_enumeration_type, | 
 | // CHECK-SAME:             flags: DIFlagFwdDecl, | 
 | // CHECK-SAME:             identifier: "_ZTS11TypedefEnum") | 
 | // CHECK: !DICompositeType(tag: DW_TAG_structure_type, | 
 | // CHECK-SAME:             flags: DIFlagFwdDecl, | 
 | // CHECK-SAME:             identifier: "_ZTS13TypedefStruct") | 
 |  | 
 | // This one isn't. | 
 | // CHECK: !DICompositeType(tag: DW_TAG_class_type, name: "Template1<void *>", | 
 | // CHECK-SAME:             elements: | 
 | // CHECK-SAME:             templateParams: | 
 | // CHECK-SAME:             identifier: "_ZTS9Template1IPvE") | 
 |  | 
 | // This type is anchored in the module by an explicit template instantiation. | 
 | // CHECK: !DICompositeType(tag: DW_TAG_class_type, name: "Template1<int>", | 
 | // CHECK-SAME:             flags: DIFlagFwdDecl, | 
 | // CHECK-SAME:             identifier: "_ZTS9Template1IiE") | 
 |  | 
 | // CHECK: !DICompositeType(tag: DW_TAG_class_type, name: "FwdDeclTemplate<int>", | 
 | // CHECK-SAME:             elements: | 
 | // CHECK-SAME:             templateParams: | 
 | // CHECK-SAME:             identifier: "_ZTS15FwdDeclTemplateIiE") | 
 |  | 
 | // This type is defined locally and forward-declared in the module. | 
 | // CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "PureFwdDecl", | 
 | // CHECK-SAME:             elements: | 
 | // CHECK-SAME:             identifier: "_ZTS11PureFwdDecl") | 
 |  | 
 | // This type is defined locally and forward-declared in the module. | 
 | // CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "Member", | 
 | // CHECK-SAME:             elements: | 
 | // CHECK-SAME:             identifier: "_ZTSN11SpecializedIiE6MemberE") | 
 |  | 
 | // This type is defined locally and forward-declared in the module. | 
 | // CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "Member", | 
 | // CHECK-SAME:             elements: | 
 | // CHECK-SAME:             identifier: "_ZTSN21FwdDeclTemplateMemberIiE6MemberE") | 
 |  | 
 | // This type is defined locally and forward-declared in the module. | 
 | // CHECK: !DIDerivedType(tag: DW_TAG_typedef, name: "SpecializedBase", | 
 | // CHECK-SAME:           baseType: ![[SPECIALIZEDBASE:.*]]) | 
 | // CHECK: ![[SPECIALIZEDBASE]] = | 
 | // CHECK-SAME: !DICompositeType(tag: DW_TAG_class_type, | 
 | // CHECK-SAME:                  name: "WithSpecializedBase<float>", | 
 | // CHECK-SAME:                  elements: | 
 | // CHECK-SAME:                  identifier: "_ZTS19WithSpecializedBaseIfE") | 
 |  | 
 | // This type is explicitly specialized locally. | 
 | // CHECK: !DICompositeType(tag: DW_TAG_class_type, name: "WithSpecializedBase<int>", | 
 | // CHECK-SAME:             elements: | 
 | // CHECK-SAME:             identifier: "_ZTS19WithSpecializedBaseIiE") | 
 |  | 
 | // CHECK: !DIGlobalVariable(name: "anon_enum", {{.*}}, type: ![[ANON_ENUM:[0-9]+]] | 
 | // CHECK: !DICompositeType(tag: DW_TAG_enumeration_type, scope: ![[NS]], | 
 | // CHECK-SAME:             line: 19 | 
 |  | 
 | // CHECK: !DIGlobalVariable(name: "GlobalUnion", | 
 | // CHECK-SAME:              type: ![[GLOBAL_UNION:[0-9]+]] | 
 | // CHECK: ![[GLOBAL_UNION]] = distinct !DICompositeType(tag: DW_TAG_union_type, | 
 | // CHECK-SAME:                elements: !{{[0-9]+}}) | 
 | // CHECK: !DIGlobalVariable(name: "GlobalStruct", | 
 | // CHECK-SAME:              type: ![[GLOBAL_STRUCT:[0-9]+]] | 
 | // CHECK: ![[GLOBAL_STRUCT]] = distinct !DICompositeType(tag: DW_TAG_structure_type, | 
 | // CHECK-SAME:                elements: !{{[0-9]+}}) | 
 |  | 
 |  | 
 | // CHECK: !DIGlobalVariable(name: "anon", | 
 | // CHECK-SAME:              type: ![[GLOBAL_ANON:[0-9]+]] | 
 | // CHECK: ![[GLOBAL_ANON]] = !DICompositeType(tag: DW_TAG_structure_type, | 
 | // CHECK-SAME:              name: "InAnonymousNamespace", {{.*}}DIFlagFwdDecl) | 
 |  | 
 |  | 
 | // CHECK: !DIImportedEntity(tag: DW_TAG_imported_declaration, scope: !{{[0-9]+}}, entity: ![[STRUCT]], file: ![[CPP]], line: 27) | 
 |  | 
 | // CHECK: !DICompileUnit( | 
 | // CHECK-SAME:           splitDebugFilename: | 
 | // CHECK-SAME:           dwoId: | 
 | // CHECK-PCH: !DICompileUnit({{.*}}splitDebugFilename: | 
 | // CHECK-PCH:                dwoId: 18446744073709551614 | 
 |  | 
 | // CHECK: !DICompositeType(tag: DW_TAG_class_type, name: "A", | 
 | // CHECK-SAME:             DIFlagFwdDecl, identifier: "_ZTS1A") | 
 |  | 
 | // There is a full definition of the type available in the module. | 
 | // CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "Virtual", | 
 | // CHECK-SAME:             DIFlagFwdDecl, identifier: "_ZTS7Virtual") |