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Subject: [Bug d/98067] [11 Regression] d: ICE in in force_decl_die, at
 dwarf2out.c:26197 with -gdwarf-2 -gstrict-dwarf
Date: Mon, 30 Nov 2020 11:29:39 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98067

--- Comment #4 from Iain Buclaw <ibuclaw at gdcproject dot org> ---
What fails is gen_decl_die()

---
 case CONST_DECL:
=E2=94=80> if (!is_fortran () && !is_ada () && !is_dlang ())
     {
       /* The individual enumerators of an enum type get output when we out=
put
          the Dwarf representation of the relevant enum type itself.  */
       break;
     }

   /* Emit its type.  */
   gen_type_die (TREE_TYPE (decl), context_die);

   /* And its containing namespace.  */
   context_die =3D declare_in_namespace (decl, context_die);

   gen_const_die (decl, context_die);
   break;
---

Here, the condition `!is_dlang ()` returns true because DW_LANG_D does not
exist in DWARFv2.

Would it be correct to fallback on a lang_hooks.name comparison if
dwarf_version < 2?=