[Bug debug/101947] [12 Regression] broken LTO bootstrap in get_base_type_offset at dwarf2out.c:4330

[ebotcazou at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101947

--- Comment #8 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
The problem is that the dwarf2out_early_finish path does not finalize base
types so calc_die_sizes cannot compute the size of DW_OP_deref_type:

    case DW_OP_deref_type:
    case DW_OP_GNU_deref_type:
      {
        unsigned long o
          = get_base_type_offset (loc->dw_loc_oprnd2.v.val_die_ref.die);
        size += 1 + size_of_uleb128 (o);
      }
      break;