/* Compilation switch flag definitions for GCC.
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/* Compilation switch flag definitions for GCC.
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Copyright (C) 1987, 1988, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002,
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Copyright (C) 1987, 1988, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002,
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2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
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2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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This file is part of GCC.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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Software Foundation; either version 3, or (at your option) any later
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version.
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_FLAGS_H
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#ifndef GCC_FLAGS_H
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#define GCC_FLAGS_H
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#define GCC_FLAGS_H
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#include "coretypes.h"
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#include "coretypes.h"
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#include "flag-types.h"
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#include "flag-types.h"
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#include "options.h"
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#include "options.h"
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#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)
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#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)
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/* Names of debug_info_type, for error messages. */
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/* Names of debug_info_type, for error messages. */
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extern const char *const debug_type_names[];
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extern const char *const debug_type_names[];
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extern void strip_off_ending (char *, int);
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extern void strip_off_ending (char *, int);
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extern int base_of_path (const char *path, const char **base_out);
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extern int base_of_path (const char *path, const char **base_out);
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/* Return true iff flags are set as if -ffast-math. */
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/* Return true iff flags are set as if -ffast-math. */
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extern bool fast_math_flags_set_p (const struct gcc_options *);
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extern bool fast_math_flags_set_p (const struct gcc_options *);
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extern bool fast_math_flags_struct_set_p (struct cl_optimization *);
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extern bool fast_math_flags_struct_set_p (struct cl_optimization *);
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/* Used to set the level of -Wstrict-aliasing in OPTS, when no level
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/* Used to set the level of -Wstrict-aliasing in OPTS, when no level
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is specified. The external way to set the default level is to use
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is specified. The external way to set the default level is to use
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-Wstrict-aliasing=level.
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-Wstrict-aliasing=level.
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ONOFF is assumed to take value 1 when -Wstrict-aliasing is specified,
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ONOFF is assumed to take value 1 when -Wstrict-aliasing is specified,
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and 0 otherwise. After calling this function, wstrict_aliasing will be
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and 0 otherwise. After calling this function, wstrict_aliasing will be
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set to the default value of -Wstrict_aliasing=level. */
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set to the default value of -Wstrict_aliasing=level. */
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extern void set_Wstrict_aliasing (struct gcc_options *opts, int onoff);
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extern void set_Wstrict_aliasing (struct gcc_options *opts, int onoff);
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/* Now the symbols that are set with `-f' switches. */
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/* Now the symbols that are set with `-f' switches. */
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/* True if printing into -fdump-final-insns= dump. */
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/* True if printing into -fdump-final-insns= dump. */
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extern bool final_insns_dump_p;
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extern bool final_insns_dump_p;
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/* Nonzero means make permerror produce warnings instead of errors. */
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/* Nonzero means make permerror produce warnings instead of errors. */
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extern int flag_permissive;
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extern int flag_permissive;
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/* Other basic status info about current function. */
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/* Other basic status info about current function. */
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/* Target-dependent global state. */
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/* Target-dependent global state. */
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struct target_flag_state {
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struct target_flag_state {
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/* Values of the -falign-* flags: how much to align labels in code.
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/* Values of the -falign-* flags: how much to align labels in code.
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0 means `use default', 1 means `don't align'.
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0 means `use default', 1 means `don't align'.
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For each variable, there is an _log variant which is the power
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For each variable, there is an _log variant which is the power
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of two not less than the variable, for .align output. */
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of two not less than the variable, for .align output. */
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int x_align_loops_log;
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int x_align_loops_log;
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int x_align_loops_max_skip;
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int x_align_loops_max_skip;
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int x_align_jumps_log;
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int x_align_jumps_log;
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int x_align_jumps_max_skip;
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int x_align_jumps_max_skip;
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int x_align_labels_log;
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int x_align_labels_log;
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int x_align_labels_max_skip;
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int x_align_labels_max_skip;
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int x_align_functions_log;
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int x_align_functions_log;
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/* The excess precision currently in effect. */
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/* The excess precision currently in effect. */
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enum excess_precision x_flag_excess_precision;
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enum excess_precision x_flag_excess_precision;
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};
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};
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extern struct target_flag_state default_target_flag_state;
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extern struct target_flag_state default_target_flag_state;
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#if SWITCHABLE_TARGET
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#if SWITCHABLE_TARGET
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extern struct target_flag_state *this_target_flag_state;
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extern struct target_flag_state *this_target_flag_state;
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#else
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#else
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#define this_target_flag_state (&default_target_flag_state)
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#define this_target_flag_state (&default_target_flag_state)
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#endif
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#endif
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#define align_loops_log \
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#define align_loops_log \
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(this_target_flag_state->x_align_loops_log)
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(this_target_flag_state->x_align_loops_log)
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#define align_loops_max_skip \
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#define align_loops_max_skip \
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(this_target_flag_state->x_align_loops_max_skip)
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(this_target_flag_state->x_align_loops_max_skip)
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#define align_jumps_log \
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#define align_jumps_log \
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(this_target_flag_state->x_align_jumps_log)
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(this_target_flag_state->x_align_jumps_log)
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#define align_jumps_max_skip \
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#define align_jumps_max_skip \
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(this_target_flag_state->x_align_jumps_max_skip)
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(this_target_flag_state->x_align_jumps_max_skip)
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#define align_labels_log \
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#define align_labels_log \
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(this_target_flag_state->x_align_labels_log)
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(this_target_flag_state->x_align_labels_log)
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#define align_labels_max_skip \
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#define align_labels_max_skip \
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(this_target_flag_state->x_align_labels_max_skip)
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(this_target_flag_state->x_align_labels_max_skip)
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#define align_functions_log \
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#define align_functions_log \
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(this_target_flag_state->x_align_functions_log)
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(this_target_flag_state->x_align_functions_log)
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#define flag_excess_precision \
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#define flag_excess_precision \
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(this_target_flag_state->x_flag_excess_precision)
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(this_target_flag_state->x_flag_excess_precision)
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/* Nonzero if we dump in VCG format, not plain text. */
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/* Nonzero if we dump in VCG format, not plain text. */
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extern int dump_for_graph;
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extern int dump_for_graph;
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/* Returns TRUE if generated code should match ABI version N or
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/* Returns TRUE if generated code should match ABI version N or
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greater is in use. */
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greater is in use. */
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#define abi_version_at_least(N) \
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#define abi_version_at_least(N) \
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(flag_abi_version == 0 || flag_abi_version >= (N))
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(flag_abi_version == 0 || flag_abi_version >= (N))
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/* True if overflow wraps around for the given integral type. That
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/* True if overflow wraps around for the given integral type. That
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is, TYPE_MAX + 1 == TYPE_MIN. */
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is, TYPE_MAX + 1 == TYPE_MIN. */
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#define TYPE_OVERFLOW_WRAPS(TYPE) \
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#define TYPE_OVERFLOW_WRAPS(TYPE) \
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(TYPE_UNSIGNED (TYPE) || flag_wrapv)
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(TYPE_UNSIGNED (TYPE) || flag_wrapv)
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/* True if overflow is undefined for the given integral type. We may
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/* True if overflow is undefined for the given integral type. We may
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optimize on the assumption that values in the type never overflow.
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optimize on the assumption that values in the type never overflow.
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IMPORTANT NOTE: Any optimization based on TYPE_OVERFLOW_UNDEFINED
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IMPORTANT NOTE: Any optimization based on TYPE_OVERFLOW_UNDEFINED
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must issue a warning based on warn_strict_overflow. In some cases
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must issue a warning based on warn_strict_overflow. In some cases
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it will be appropriate to issue the warning immediately, and in
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it will be appropriate to issue the warning immediately, and in
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other cases it will be appropriate to simply set a flag and let the
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other cases it will be appropriate to simply set a flag and let the
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caller decide whether a warning is appropriate or not. */
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caller decide whether a warning is appropriate or not. */
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#define TYPE_OVERFLOW_UNDEFINED(TYPE) \
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#define TYPE_OVERFLOW_UNDEFINED(TYPE) \
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(!TYPE_UNSIGNED (TYPE) && !flag_wrapv && !flag_trapv && flag_strict_overflow)
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(!TYPE_UNSIGNED (TYPE) && !flag_wrapv && !flag_trapv && flag_strict_overflow)
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/* True if overflow for the given integral type should issue a
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/* True if overflow for the given integral type should issue a
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trap. */
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trap. */
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#define TYPE_OVERFLOW_TRAPS(TYPE) \
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#define TYPE_OVERFLOW_TRAPS(TYPE) \
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(!TYPE_UNSIGNED (TYPE) && flag_trapv)
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(!TYPE_UNSIGNED (TYPE) && flag_trapv)
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/* True if pointer types have undefined overflow. */
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/* True if pointer types have undefined overflow. */
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#define POINTER_TYPE_OVERFLOW_UNDEFINED (flag_strict_overflow)
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#define POINTER_TYPE_OVERFLOW_UNDEFINED (flag_strict_overflow)
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/* Whether to emit an overflow warning whose code is C. */
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/* Whether to emit an overflow warning whose code is C. */
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#define issue_strict_overflow_warning(c) (warn_strict_overflow >= (int) (c))
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#define issue_strict_overflow_warning(c) (warn_strict_overflow >= (int) (c))
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#endif
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#endif
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#endif /* ! GCC_FLAGS_H */
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#endif /* ! GCC_FLAGS_H */
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