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authorPaul Eggert <eggert@cs.ucla.edu>2019-04-18 00:30:24 -0700
committerPaul Eggert <eggert@cs.ucla.edu>2019-04-18 00:35:18 -0700
commit6d6c55db2cdfb6b354873f17285a3f602e011817 (patch)
treefc9647797be220e613962260700c05e5f37100c1 /src/search.c
parentdded2c4cf30fbdb5e90c44bc76a26970d00e0f22 (diff)
downloademacs-6d6c55db2cdfb6b354873f17285a3f602e011817.tar.gz
Mark _Noreturn error functions as cold
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.
Diffstat (limited to 'src/search.c')
-rw-r--r--src/search.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/search.c b/src/search.c
index a450e920b03..7a6e680685a 100644
--- a/src/search.c
+++ b/src/search.c
@@ -73,7 +73,7 @@ static EMACS_INT search_buffer (Lisp_Object, ptrdiff_t, ptrdiff_t,
Lisp_Object re_match_object;
-static _Noreturn void
+static AVOID
matcher_overflow (void)
{
error ("Stack overflow in regexp matcher");