From 6d6c55db2cdfb6b354873f17285a3f602e011817 Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Thu, 18 Apr 2019 00:30:24 -0700 Subject: Mark _Noreturn error functions as cold MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On my platform this made ‘make compile-always’ 1.3% faster. Suggested by Alex Gramiak in: https://lists.gnu.org/r/emacs-devel/2019-04/msg00684.html * configure.ac (nw): Don’t use -Wsuggest-attribute=cold. * lib-src/make-docfile.c (write_globals): Mark noreturn functions as cold. * src/callproc.c (exec_failed): * src/data.c (wrong_length_argument, wrong_type_argument): * src/emacs-module.c (module_abort): * src/emacs.c (terminate_due_to_signal): * src/eval.c (unwind_to_catch): * src/image.c (my_png_error, my_error_exit): * src/json.c (json_out_of_memory, json_parse_error): * src/keyboard.c (quit_throw_to_read_char, user_error): * src/lisp.h (die, wrong_type_argument, wrong_choice) (args_out_of_range, args_out_of_range_3, circular_list) (buffer_overflow, memory_full, buffer_memory_full) (string_overflow, xsignal, xsignal0, xsignal1, xsignal2) (xsignal3, signal_error, overflow_error, error, verror) (nsberror, report_file_errno, report_file_error) (report_file_notify_error, terminate_due_to_signal) (emacs_abort, fatal): * src/lread.c (load_error_old_style_backquotes) (end_of_file_error, invalid_syntax): * src/pdumper.c (error_unsupported_dump_object): * src/puresize.h (pure_write_error): * src/search.c (matcher_overflow): * src/sound.c (sound_perror, alsa_sound_perror): * src/sysdep.c (handle_arith_signal): * src/systime.h (time_overflow): * src/term.c (maybe_fatal, vfatal): * src/textprop.c (text_read_only): * src/timefns.c (invalid_time_zone_specification) (time_error, invalid_hz): * src/xterm.c (x_connection_closed): Use AVOID instead of _Noreturn void, so that it’s marked cold. * src/conf_post.h (__has_attribute_cold) [!__has_attribute]: New macro. (ATTRIBUTE_COLD): New macro. * src/frame.h (WINDOW_SYSTEM_RETURN): Add ATTRIBUTE_COLD. * src/lisp.h (AVOID): New macro. * src/xterm.c: Omit unnecessary static decls, so that we needn’t worry about which functions should be marked cold. (x_io_error_quitter): Mark as cold. --- src/emacs-module.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'src/emacs-module.c') diff --git a/src/emacs-module.c b/src/emacs-module.c index 47ca3368c0f..09a768e18ed 100644 --- a/src/emacs-module.c +++ b/src/emacs-module.c @@ -147,8 +147,7 @@ static enum emacs_funcall_exit module_non_local_exit_check (emacs_env *); static void module_assert_thread (void); static void module_assert_runtime (struct emacs_runtime *); static void module_assert_env (emacs_env *); -static _Noreturn void module_abort (const char *format, ...) - ATTRIBUTE_FORMAT_PRINTF(1, 2); +static AVOID module_abort (const char *, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2); static emacs_env *initialize_environment (emacs_env *, struct emacs_env_private *); static void finalize_environment (emacs_env *); @@ -1163,8 +1162,7 @@ init_module_assertions (bool enable) initialize_storage (&global_storage); } -static _Noreturn void -ATTRIBUTE_FORMAT_PRINTF(1, 2) +static AVOID ATTRIBUTE_FORMAT_PRINTF (1, 2) module_abort (const char *format, ...) { fputs ("Emacs module assertion: ", stderr); -- cgit v1.2.3