/* Compilation switch flag definitions for GCC.
- Copyright (C) 1987, 1988, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002,
- 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 1987-2014 Free Software Foundation, Inc.
This file is part of GCC.
#ifndef GCC_FLAGS_H
#define GCC_FLAGS_H
-#include "coretypes.h"
#include "flag-types.h"
#include "options.h"
extern bool fast_math_flags_set_p (const struct gcc_options *);
extern bool fast_math_flags_struct_set_p (struct cl_optimization *);
-/* Used to set the level of -Wstrict-aliasing in OPTS, when no level
- is specified. The external way to set the default level is to use
- -Wstrict-aliasing=level.
- ONOFF is assumed to take value 1 when -Wstrict-aliasing is specified,
- and 0 otherwise. After calling this function, wstrict_aliasing will be
- set to the default value of -Wstrict_aliasing=level. */
-
-extern void set_Wstrict_aliasing (struct gcc_options *opts, int onoff);
\f
/* Now the symbols that are set with `-f' switches. */
#define flag_excess_precision \
(this_target_flag_state->x_flag_excess_precision)
-/* Nonzero if we dump in VCG format, not plain text. */
-extern int dump_for_graph;
-
/* Returns TRUE if generated code should match ABI version N or
greater is in use. */
#define abi_version_at_least(N) \
(flag_abi_version == 0 || flag_abi_version >= (N))
-/* True if overflow wraps around for the given integral type. That
- is, TYPE_MAX + 1 == TYPE_MIN. */
-#define TYPE_OVERFLOW_WRAPS(TYPE) \
- (TYPE_UNSIGNED (TYPE) || flag_wrapv)
-
-/* True if overflow is undefined for the given integral type. We may
- optimize on the assumption that values in the type never overflow.
-
- IMPORTANT NOTE: Any optimization based on TYPE_OVERFLOW_UNDEFINED
- must issue a warning based on warn_strict_overflow. In some cases
- it will be appropriate to issue the warning immediately, and in
- other cases it will be appropriate to simply set a flag and let the
- caller decide whether a warning is appropriate or not. */
-#define TYPE_OVERFLOW_UNDEFINED(TYPE) \
- (!TYPE_UNSIGNED (TYPE) && !flag_wrapv && !flag_trapv && flag_strict_overflow)
-
-/* True if overflow for the given integral type should issue a
- trap. */
-#define TYPE_OVERFLOW_TRAPS(TYPE) \
- (!TYPE_UNSIGNED (TYPE) && flag_trapv)
-
-/* True if pointer types have undefined overflow. */
-#define POINTER_TYPE_OVERFLOW_UNDEFINED (flag_strict_overflow)
-
/* Whether to emit an overflow warning whose code is C. */
#define issue_strict_overflow_warning(c) (warn_strict_overflow >= (int) (c))