gcc/gcc/errors.h
Jan Hubicka 52bf96d2f2 errors.h (warning, [...]): Mark as cold.
* errors.h (warning, error, fatal, internal_error): Mark as cold.
	* predict.c (maybe_hot_bb): Cold functions are never hot; hot functions
	are hot.
	(probably_cold_bb_p): Cold functions are cold.
	(probably_never_executed_bb_p): Cold functions are cold.
	(tree_bb_level_predictions): Predict calls to cold functions as not
	taken.
	(compute_function_frequency): Check hot/cold attributes.
	* function.h (function_frequency): Update comments.
	* predict.def (PRED_COLD_FUNCTION): Predict cold function.
	* c-common.c (handle_hot_attribute, handle_cold_attribute): New.
	(c_common_att): Add cold and hot.

	* doc/extend.texi (hot,cold attributes): Document.
	
	* ansidecl.h (ATTRIBUTE_COLD, ATTRIBUTE_HOT): New.

From-SVN: r122632
2007-03-06 18:57:27 +00:00

47 lines
1.9 KiB
C

/* Basic error reporting routines.
Copyright (C) 1999, 2000, 2001, 2003, 2004, 2005
Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA. */
/* warning, error, and fatal. These definitions are suitable for use
in the generator programs; eventually we would like to use them in
cc1 too, but that's a longer term project.
N.B. We cannot presently use ATTRIBUTE_PRINTF with these functions,
because they can be extended with additional format specifiers which
GCC does not know about. */
#ifndef GCC_ERRORS_H
#define GCC_ERRORS_H
/* The first parameter is for compatibility with the non-generator
version of warning(). For those, you'd pass an OPT_W* value from
options.h, but in generator programs it has no effect, so it's OK
to just pass zero for calls from generator-only files. */
extern void warning (int, const char *, ...) ATTRIBUTE_PRINTF_2 ATTRIBUTE_COLD;
extern void error (const char *, ...) ATTRIBUTE_PRINTF_1 ATTRIBUTE_COLD;
extern void fatal (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF_1 ATTRIBUTE_COLD;
extern void internal_error (const char *, ...) ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF_1 ATTRIBUTE_COLD;
extern const char *trim_filename (const char *);
extern int have_error;
extern const char *progname;
#endif /* ! GCC_ERRORS_H */