Module debugging: Defer emitting tag types until their definition

was visited and all decls have been merged.

We only get a single chance to emit the types for virtual classes because
CGDebugInfo::completeRequiredType() categorically doesn't complete them.

llvm-svn: 256962

1 files changed, 14 insertions, 6 deletions

diff --git a/clang/test/Modules/ModuleDebugInfo.cpp b/clang/test/Modules/ModuleDebugInfo.cpp
index 82500f0d162..ca66a318925 100644
--- a/clang/test/Modules/ModuleDebugInfo.cpp
+++ b/clang/test/Modules/ModuleDebugInfo.cpp
@@ -7,13 +7,11 @@
 // RUN: rm -rf %t
 // RUN: %clang_cc1 -triple %itanium_abi_triple -x objective-c++ -std=c++11 -debug-info-kind=limited -fmodules -fmodule-format=obj -fimplicit-module-maps -DMODULES -fmodules-cache-path=%t %s -I %S/Inputs -I %t -emit-llvm -o %t.ll -mllvm -debug-only=pchcontainer &>%t-mod.ll
 // RUN: cat %t-mod.ll | FileCheck %s
-// RUN: cat %t-mod.ll | FileCheck --check-prefix=CHECK-NEG %s
 // RUN: cat %t-mod.ll | FileCheck --check-prefix=CHECK-DWO %s
 
 // PCH:
 // RUN: %clang_cc1 -triple %itanium_abi_triple -x c++ -std=c++11 -emit-pch -fmodule-format=obj -I %S/Inputs -o %t.pch %S/Inputs/DebugCXX.h -mllvm -debug-only=pchcontainer &>%t-pch.ll
 // RUN: cat %t-pch.ll | FileCheck %s
-// RUN: cat %t-pch.ll | FileCheck --check-prefix=CHECK-NEG %s
 
 #ifdef MODULES
 @import DebugCXX;
@@ -23,22 +21,32 @@
 // CHECK-SAME:                    isOptimized: false,
 // CHECK-SAME-NOT:                splitDebugFilename:
 // CHECK-DWO:                     dwoId:
+
 // CHECK: !DICompositeType(tag: DW_TAG_enumeration_type, name: "Enum"
 // CHECK-SAME:             identifier: "_ZTSN8DebugCXX4EnumE")
 // CHECK: !DINamespace(name: "DebugCXX"
+
 // CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "Struct"
 // CHECK-SAME:             identifier: "_ZTSN8DebugCXX6StructE")
+
 // CHECK: !DICompositeType(tag: DW_TAG_class_type,
 // CHECK-SAME:             name: "Template<int, DebugCXX::traits<int> >"
 // CHECK-SAME:             identifier: "_ZTSN8DebugCXX8TemplateIiNS_6traitsIiEEEE")
+
+// CHECK: !DICompositeType(tag: DW_TAG_class_type, name: "A<void>"
+// CHECK-SAME:             identifier: "_ZTSN8DebugCXX1AIJvEEE")
+
 // CHECK: !DICompositeType(tag: DW_TAG_class_type,
 // CHECK-SAME:             name: "Template<float, DebugCXX::traits<float> >"
 // CHECK-SAME:             identifier: "_ZTSN8DebugCXX8TemplateIfNS_6traitsIfEEEE")
-// CHECK: !DICompositeType(tag: DW_TAG_class_type, name: "A<void>"
-// CHECK-SAME:             identifier: "_ZTSN8DebugCXX1AIJvEEE")
+
+// CHECK: !DICompositeType(tag: DW_TAG_class_type, name: "FwdVirtual"
+// CHECK-SAME:             elements:
+// CHECK-SAME:             identifier: "_ZTS10FwdVirtual")
+// CHECK: !DIDerivedType(tag: DW_TAG_member, name: "_vptr$FwdVirtual"
+
 // CHECK: !DIDerivedType(tag: DW_TAG_typedef, name: "FloatInstatiation"
 // no mangled name here yet.
+
 // CHECK: !DIDerivedType(tag: DW_TAG_typedef, name: "B",
 // no mangled name here yet.
-
-// CHECK-NEG-NOT: "_ZTSN8DebugCXX8TemplateIlNS_6traitsIlEEEE"