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PR bootstrap/41405 * dwarf2out.c (base_type_die, record_type_tag, gen_subprogram_die, add_call_src_coords_attributes, add_high_low_attributes, gen_compile_unit_die, gen_type_die_with_usage force_decl_die, gen_decl_die, dwarf2out_imported_module_or_decl_1, dwarf2out_finish, dwarf2out_imported_module_or_decl): Avoid using DWARF3 additions when -gdwarf-2 -gstrict-dwarf. (loc_list_from_tree): Likewise. Avoid using DWARF4 additions when -gdwarf-[23] -gstrict-dwarf. (address_of_int_loc_descriptor, loc_descriptor, loc_list_for_address_of_addr_expr_of_indirect_ref): Avoid using DWARF4 additions when -gdwarf-[23] -gstrict-dwarf. * common.opt (gno-strict-dwarf, gstrict-dwarf): New options. * gfortran.dg/debug/pr37738.f: Add -gno-strict-dwarf to dg-options. * gfortran.dg/debug/pr35154-dwarf2.f: Likewise. * g++.dg/debug/dwarf2/explicit-constructor.C: Likewise. * g++.dg/debug/dwarf2/imported-module-2.C: Likewise. * g++.dg/debug/dwarf2/imported-module-3.C: Likewise. * g++.dg/debug/dwarf2/imported-module-4.C: Likewise. * g++.dg/debug/dwarf2/namespace-1.C: Likewise. * objc.dg/dwarf-2.m: Likewise. From-SVN: r151978
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