| // RUN: %clang_cc1 %s -triple=x86_64-apple-darwin -debug-info-kind=limited -emit-llvm -o - | FileCheck %s |
| // This test is for a crash when emitting debug info for not-yet-completed |
| // types. |
| // Test that we don't actually emit a forward decl for the offending class: |
| // CHECK: !DICompositeType(tag: DW_TAG_structure_type, name: "Derived<int>" |
| // CHECK-NOT: DIFlagFwdDecl |
| // CHECK-SAME: ){{$}} |
| template <class A> class Derived; |
| |
| template <class A> class Base { |
| static Derived<A> *create(); |
| }; |
| |
| template <class A> struct Derived : Base<A> { |
| }; |
| |
| Base<int> *f; |
| |
| // During the instantiation of Derived<int>, Base<int> becomes required to be |
| // complete - since the declaration has already been emitted (due to 'f', |
| // above), we immediately try to build debug info for Base<int> which then |
| // requires the (incomplete definition) of Derived<int> which is problematic. |
| // |
| // (if 'f' is not present, the point at which Base<int> becomes required to be |
| // complete during the instantiation of Derived<int> is a no-op because |
| // Base<int> was never emitted so we ignore it and carry on until we |
| // wire up the base class of Derived<int> in the debug info later on) |
| Derived<int> d; |
