From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 602EB3858C3A; Wed, 6 Sep 2023 15:58:03 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 602EB3858C3A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1694015883; bh=AahbPfORfvUY2FaYA43kmOG1kqZt8jCqFML38B4l49Q=; h=From:To:Subject:Date:In-Reply-To:References:From; b=w0IgdVRRqMuybuTu5knWuyRTg8wPkjjaQqSxQ4h+l+mviKMHWOhbYnJTGDATPzoIa h2OOyo24DZSqNG8JO1t+wEXzsgyUdHDQrZCspwb0HxduEMVy33B7PmwQ852MLkDlNY r+jWfd4icPgxzRIbxZwf1ZOFU3Z5yVWyfyLQuUL8= From: "cvs-commit at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/102989] Implement C2x's n2763 (_BitInt) Date: Wed, 06 Sep 2023 15:58:01 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: 12.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: cvs-commit at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: jakub at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102989 --- Comment #102 from CVS Commits --- The master branch has been updated by Jakub Jelinek : https://gcc.gnu.org/g:8c984a1c3693df63520558631c827bb2c2d8b5bc commit r14-3751-g8c984a1c3693df63520558631c827bb2c2d8b5bc Author: Jakub Jelinek Date: Wed Sep 6 17:34:49 2023 +0200 C _BitInt support [PR102989] This patch adds the C FE support, c-family support, small libcpp change so that 123wb and 42uwb suffixes are handled plus glimits.h change to define BITINT_MAXWIDTH macro. The previous patches really do nothing without this, which enables all the support. 2023-09-06 Jakub Jelinek PR c/102989 gcc/ * glimits.h (BITINT_MAXWIDTH): Define if __BITINT_MAXWIDTH__ is predefined. gcc/c-family/ * c-common.cc (c_common_reswords): Add _BitInt as keyword. (unsafe_conversion_p): Handle BITINT_TYPE like INTEGER_TYPE. (c_common_signed_or_unsigned_type): Handle BITINT_TYPE. (c_common_truthvalue_conversion, c_common_get_alias_set, check_builtin_function_arguments): Handle BITINT_TYPE like INTEGER_TYPE. (sync_resolve_size): Add ORIG_FORMAT argument. If FETCH && !ORIG_FORMAT, type is BITINT_TYPE, return -1 if size i= sn't one of 1, 2, 4, 8 or 16 or if it is 16 but TImode is not suppor= ted. (atomic_bitint_fetch_using_cas_loop): New function. (resolve_overloaded_builtin): Adjust sync_resolve_size caller. = If -1 is returned, use atomic_bitint_fetch_using_cas_loop to lower= it. Formatting fix. (keyword_begins_type_specifier): Handle RID_BITINT. * c-common.h (enum rid): Add RID_BITINT enumerator. * c-cppbuiltin.cc (c_cpp_builtins): For C call targetm.c.bitint_type_info and predefine __BITINT_MAXWIDTH__ and for -fbuilding-libgcc also __LIBGCC_BITINT_LIMB_WIDTH__ and __LIBGCC_BITINT_ORDER__ macros if _BitInt is supported. * c-lex.cc (interpret_integer): Handle CPP_N_BITINT. * c-pretty-print.cc (c_pretty_printer::simple_type_specifier, c_pretty_printer::direct_abstract_declarator, c_pretty_printer::direct_declarator, c_pretty_printer::declarat= or): Handle BITINT_TYPE. (pp_c_integer_constant): Handle printing of large precision wide_ints which would buffer overflow digit_buffer. * c-warn.cc (conversion_warning, warnings_for_convert_and_check, warnings_for_convert_and_check): Handle BITINT_TYPE like INTEGER_TYPE. gcc/c/ * c-convert.cc (c_convert): Handle BITINT_TYPE like INTEGER_TYP= E. * c-decl.cc (check_bitfield_type_and_width): Allow BITINT_TYPE bit-fields. (finish_struct): Prefer to use BITINT_TYPE for BITINT_TYPE bit-fields if possible. (declspecs_add_type): Formatting fixes. Handle cts_bitint. Ad= just for added union in *specs. Handle RID_BITINT. (finish_declspecs): Handle cts_bitint. Adjust for added union in *specs. * c-parser.cc (c_keyword_starts_typename, c_token_starts_declsp= ecs, c_parser_declspecs, c_parser_gnu_attribute_any_word): Handle RID_BITINT. (c_parser_omp_clause_schedule): Handle BITINT_TYPE like INTEGER_TYPE. * c-tree.h (enum c_typespec_keyword): Mention _BitInt in commen= t. Add cts_bitint enumerator. (struct c_declspecs): Move int_n_idx and floatn_nx_idx into a u= nion and add bitint_prec there as well. * c-typeck.cc (c_common_type, comptypes_internal): Handle BITINT_TYPE. (perform_integral_promotions): Promote BITINT_TYPE bit-fields to their declared type. (build_array_ref, build_unary_op, build_conditional_expr, build_c_cast, convert_for_assignment, digest_init, build_binary_op): Handle BITINT_TYPE. * c-fold.cc (c_fully_fold_internal): Handle BITINT_TYPE like INTEGER_TYPE. * c-aux-info.cc (gen_type): Handle BITINT_TYPE. libcpp/ * expr.cc (interpret_int_suffix): Handle wb and WB suffixes. * include/cpplib.h (CPP_N_BITINT): Define.=