[thirdparty/gcc.git] / gcc / opts-global.c

/* Command line option handling.  Code involving global state that
   should not be shared with the driver.
   Copyright (C) 2002-2013 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 3, 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 COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */

#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "diagnostic.h"
#include "opts.h"
#include "flags.h"
#include "tree.h" /* Required by langhooks.h.  */
#include "basic-block.h"
#include "tree-ssa-alias.h"
#include "internal-fn.h"
#include "gimple-expr.h"
#include "is-a.h"
#include "gimple.h"
#include "langhooks.h"
#include "tm.h" /* Required by rtl.h.  */
#include "rtl.h"
#include "dbgcnt.h"
#include "debug.h"
#include "lto-streamer.h"
#include "output.h"
#include "plugin.h"
#include "toplev.h"
#include "tree-pass.h"
#include "context.h"

typedef const char *const_char_p; /* For DEF_VEC_P.  */

static vec<const_char_p> ignored_options;

/* Input file names.  */
const char **in_fnames;
unsigned num_in_fnames;

/* Return a malloced slash-separated list of languages in MASK.  */

static char *
write_langs (unsigned int mask)
{
  unsigned int n = 0, len = 0;
  const char *lang_name;
  char *result;

  for (n = 0; (lang_name = lang_names[n]) != 0; n++)
    if (mask & (1U << n))
      len += strlen (lang_name) + 1;

  result = XNEWVEC (char, len);
  len = 0;
  for (n = 0; (lang_name = lang_names[n]) != 0; n++)
    if (mask & (1U << n))
      {
	if (len)
	  result[len++] = '/';
	strcpy (result + len, lang_name);
	len += strlen (lang_name);
      }

  result[len] = 0;

  return result;
}

/* Complain that switch DECODED does not apply to this front end (mask
   LANG_MASK).  */

static void
complain_wrong_lang (const struct cl_decoded_option *decoded,
		     unsigned int lang_mask)
{
  const struct cl_option *option = &cl_options[decoded->opt_index];
  const char *text = decoded->orig_option_with_args_text;
  char *ok_langs = NULL, *bad_lang = NULL;
  unsigned int opt_flags = option->flags;

  if (!lang_hooks.complain_wrong_lang_p (option))
    return;

  opt_flags &= ((1U << cl_lang_count) - 1) | CL_DRIVER;
  if (opt_flags != CL_DRIVER)
    ok_langs = write_langs (opt_flags);
  if (lang_mask != CL_DRIVER)
    bad_lang = write_langs (lang_mask);

  if (opt_flags == CL_DRIVER)
    error ("command line option %qs is valid for the driver but not for %s",
	   text, bad_lang);
  else if (lang_mask == CL_DRIVER)
    gcc_unreachable ();
  else
    /* Eventually this should become a hard error IMO.  */
    warning (0, "command line option %qs is valid for %s but not for %s",
	     text, ok_langs, bad_lang);

  free (ok_langs);
  free (bad_lang);
}

/* Buffer the unknown option described by the string OPT.  Currently,
   we only complain about unknown -Wno-* options if they may have
   prevented a diagnostic. Otherwise, we just ignore them.  Note that
   if we do complain, it is only as a warning, not an error; passing
   the compiler an unrecognised -Wno-* option should never change
   whether the compilation succeeds or fails.  */

static void
postpone_unknown_option_warning (const char *opt)
{
  ignored_options.safe_push (opt);
}

/* Produce a warning for each option previously buffered.  */

void
print_ignored_options (void)
{
  while (!ignored_options.is_empty ())
    {
      const char *opt;

      opt = ignored_options.pop ();
      warning_at (UNKNOWN_LOCATION, 0,
		  "unrecognized command line option \"%s\"", opt);
    }
}

/* Handle an unknown option DECODED, returning true if an error should
   be given.  */

static bool
unknown_option_callback (const struct cl_decoded_option *decoded)
{
  const char *opt = decoded->arg;

  if (opt[1] == 'W' && opt[2] == 'n' && opt[3] == 'o' && opt[4] == '-'
      && !(decoded->errors & CL_ERR_NEGATIVE))
    {
      /* We don't generate warnings for unknown -Wno-* options unless
	 we issue diagnostics.  */
      postpone_unknown_option_warning (opt);
      return false;
    }
  else
    return true;
}

/* Handle a front-end option; arguments and return value as for
   handle_option.  */

static bool
lang_handle_option (struct gcc_options *opts,
		    struct gcc_options *opts_set,
		    const struct cl_decoded_option *decoded,
		    unsigned int lang_mask ATTRIBUTE_UNUSED, int kind,
		    location_t loc,
		    const struct cl_option_handlers *handlers,
		    diagnostic_context *dc)
{
  gcc_assert (opts == &global_options);
  gcc_assert (opts_set == &global_options_set);
  gcc_assert (dc == global_dc);
  gcc_assert (decoded->canonical_option_num_elements <= 2);
  return lang_hooks.handle_option (decoded->opt_index, decoded->arg,
				   decoded->value, kind, loc, handlers);
}

/* Handle FILENAME from the command line.  */

static void
add_input_filename (const char *filename)
{
  num_in_fnames++;
  in_fnames = XRESIZEVEC (const char *, in_fnames, num_in_fnames);
  in_fnames[num_in_fnames - 1] = filename;
}

/* Handle the vector of command line options (located at LOC), storing
   the results of processing DECODED_OPTIONS and DECODED_OPTIONS_COUNT
   in OPTS and OPTS_SET and using DC for diagnostic state.  LANG_MASK
   contains has a single bit set representing the current language.
   HANDLERS describes what functions to call for the options.  */

static void
read_cmdline_options (struct gcc_options *opts, struct gcc_options *opts_set,
		      struct cl_decoded_option *decoded_options,
		      unsigned int decoded_options_count,
		      location_t loc,
		      unsigned int lang_mask,
		      const struct cl_option_handlers *handlers,
		      diagnostic_context *dc)
{
  unsigned int i;

  for (i = 1; i < decoded_options_count; i++)
    {
      if (decoded_options[i].opt_index == OPT_SPECIAL_input_file)
	{
	  /* Input files should only ever appear on the main command
	     line.  */
	  gcc_assert (opts == &global_options);
	  gcc_assert (opts_set == &global_options_set);

	  if (opts->x_main_input_filename == NULL)
	    {
	      opts->x_main_input_filename = decoded_options[i].arg;
	      opts->x_main_input_baselength
		= base_of_path (opts->x_main_input_filename,
				&opts->x_main_input_basename);
	    }
	  add_input_filename (decoded_options[i].arg);
	  continue;
	}

      read_cmdline_option (opts, opts_set,
			   decoded_options + i, loc, lang_mask, handlers,
			   dc);
    }
}

/* Language mask determined at initialization.  */
static unsigned int initial_lang_mask;

/* Initialize global options-related settings at start-up.  */

void
init_options_once (void)
{
  /* Perform language-specific options initialization.  */
  initial_lang_mask = lang_hooks.option_lang_mask ();

  lang_hooks.initialize_diagnostics (global_dc);
}

/* Decode command-line options to an array, like
   decode_cmdline_options_to_array and with the same arguments but
   using the default lang_mask.  */

void
decode_cmdline_options_to_array_default_mask (unsigned int argc,
					      const char **argv, 
					      struct cl_decoded_option **decoded_options,
					      unsigned int *decoded_options_count)
{
  decode_cmdline_options_to_array (argc, argv,
				   initial_lang_mask | CL_COMMON | CL_TARGET,
				   decoded_options, decoded_options_count);
}

/* Set *HANDLERS to the default set of option handlers for use in the
   compilers proper (not the driver).  */
void
set_default_handlers (struct cl_option_handlers *handlers)
{
  handlers->unknown_option_callback = unknown_option_callback;
  handlers->wrong_lang_callback = complain_wrong_lang;
  handlers->num_handlers = 3;
  handlers->handlers[0].handler = lang_handle_option;
  handlers->handlers[0].mask = initial_lang_mask;
  handlers->handlers[1].handler = common_handle_option;
  handlers->handlers[1].mask = CL_COMMON;
  handlers->handlers[2].handler = target_handle_option;
  handlers->handlers[2].mask = CL_TARGET;
}

/* Parse command line options and set default flag values.  Do minimal
   options processing.  The decoded options are in *DECODED_OPTIONS
   and *DECODED_OPTIONS_COUNT; settings go in OPTS, OPTS_SET and DC;
   the options are located at LOC.  */
void
decode_options (struct gcc_options *opts, struct gcc_options *opts_set,
		struct cl_decoded_option *decoded_options,
		unsigned int decoded_options_count,
		location_t loc, diagnostic_context *dc)
{
  struct cl_option_handlers handlers;

  unsigned int lang_mask;

  lang_mask = initial_lang_mask;

  set_default_handlers (&handlers);

  default_options_optimization (opts, opts_set,
				decoded_options, decoded_options_count,
				loc, lang_mask, &handlers, dc);

  read_cmdline_options (opts, opts_set,
			decoded_options, decoded_options_count,
			loc, lang_mask,
			&handlers, dc);

  finish_options (opts, opts_set, loc);
}

/* Process common options that have been deferred until after the
   handlers have been called for all options.  */

void
handle_common_deferred_options (void)
{
  unsigned int i;
  cl_deferred_option *opt;
  vec<cl_deferred_option> v;

  if (common_deferred_options)
    v = *((vec<cl_deferred_option> *) common_deferred_options);
  else
    v = vNULL;

  if (flag_dump_all_passed)
    enable_rtl_dump_file ();

  if (flag_opt_info)
    opt_info_switch_p (NULL);

  FOR_EACH_VEC_ELT (v, i, opt)
    {
      switch (opt->opt_index)
	{
	case OPT_fcall_used_:
	  fix_register (opt->arg, 0, 1);
	  break;

	case OPT_fcall_saved_:
	  fix_register (opt->arg, 0, 0);
	  break;

	case OPT_fdbg_cnt_:
	  dbg_cnt_process_opt (opt->arg);
	  break;

	case OPT_fdbg_cnt_list:
	  dbg_cnt_list_all_counters ();
	  break;

	case OPT_fdebug_prefix_map_:
	  add_debug_prefix_map (opt->arg);
	  break;

	case OPT_fdump_:
	  if (!g->get_dumps ()->dump_switch_p (opt->arg))
	    error ("unrecognized command line option %<-fdump-%s%>", opt->arg);
	  break;

        case OPT_fopt_info_:
	  if (!opt_info_switch_p (opt->arg))
	    error ("unrecognized command line option %<-fopt-info-%s%>",
                   opt->arg);
          break;

	case OPT_fenable_:
	case OPT_fdisable_:
	  if (opt->opt_index == OPT_fenable_)
	    enable_pass (opt->arg);
          else
	    disable_pass (opt->arg);
          break;

	case OPT_ffixed_:
	  /* Deferred.  */
	  fix_register (opt->arg, 1, 1);
	  break;

	case OPT_fplugin_:
#ifdef ENABLE_PLUGIN
	  add_new_plugin (opt->arg);
#else
	  error ("plugin support is disabled; configure with --enable-plugin");
#endif
	  break;

	case OPT_fplugin_arg_:
#ifdef ENABLE_PLUGIN
	  parse_plugin_arg_opt (opt->arg);
#else
	  error ("plugin support is disabled; configure with --enable-plugin");
#endif
	  break;

	case OPT_frandom_seed:
	  /* The real switch is -fno-random-seed.  */
	  if (!opt->value)
	    set_random_seed (NULL);
	  break;

	case OPT_frandom_seed_:
	  set_random_seed (opt->arg);
	  break;

	case OPT_fstack_limit:
	  /* The real switch is -fno-stack-limit.  */
	  if (!opt->value)
	    stack_limit_rtx = NULL_RTX;
	  break;

	case OPT_fstack_limit_register_:
	  {
	    int reg = decode_reg_name (opt->arg);
	    if (reg < 0)
	      error ("unrecognized register name %qs", opt->arg);
	    else
	      stack_limit_rtx = gen_rtx_REG (Pmode, reg);
	  }
	  break;

	case OPT_fstack_limit_symbol_:
	  stack_limit_rtx = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (opt->arg));
	  break;

	default:
	  gcc_unreachable ();
	}
    }
}
Commit	Line	Data
21bf1558 JM	1	/* Command line option handling. Code involving global state that
21bf1558 JM	2	should not be shared with the driver.
d1e082c2	3	Copyright (C) 2002-2013 Free Software Foundation, Inc.
21bf1558 JM	4
	5	This file is part of GCC.
	6
	7	GCC is free software; you can redistribute it and/or modify it under
	8	the terms of the GNU General Public License as published by the Free
	9	Software Foundation; either version 3, or (at your option) any later
	10	version.
	11
	12	GCC is distributed in the hope that it will be useful, but WITHOUT ANY
	13	WARRANTY; without even the implied warranty of MERCHANTABILITY or
	14	FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	15	for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with GCC; see the file COPYING3. If not see
	19	<http://www.gnu.org/licenses/>. */
	20
	21	#include "config.h"
	22	#include "system.h"
	23	#include "coretypes.h"
c98cd5bf	24	#include "diagnostic.h"
21bf1558 JM	25	#include "opts.h"
21bf1558 JM	26	#include "flags.h"
c98cd5bf	27	#include "tree.h" /* Required by langhooks.h. */
2fb9a547 AM	28	#include "basic-block.h"
	29	#include "tree-ssa-alias.h"
	30	#include "internal-fn.h"
	31	#include "gimple-expr.h"
	32	#include "is-a.h"
8e9055ae	33	#include "gimple.h"
c98cd5bf	34	#include "langhooks.h"
21bf1558 JM	35	#include "tm.h" /* Required by rtl.h. */
21bf1558 JM	36	#include "rtl.h"
299404a1 JM	37	#include "dbgcnt.h"
299404a1 JM	38	#include "debug.h"
c98cd5bf	39	#include "lto-streamer.h"
21bf1558 JM	40	#include "output.h"
21bf1558 JM	41	#include "plugin.h"
c98cd5bf	42	#include "toplev.h"
21bf1558	43	#include "tree-pass.h"
47e0da37	44	#include "context.h"
21bf1558	45
c98cd5bf	46	typedef const char const_char_p; / For DEF_VEC_P. */
c98cd5bf	47
9771b263	48	static vec<const_char_p> ignored_options;
c98cd5bf JM	49
	50	/* Input file names. */
	51	const char **in_fnames;
	52	unsigned num_in_fnames;
	53
	54	/* Return a malloced slash-separated list of languages in MASK. */
	55
	56	static char *
	57	write_langs (unsigned int mask)
	58	{
	59	unsigned int n = 0, len = 0;
	60	const char *lang_name;
	61	char *result;
	62
	63	for (n = 0; (lang_name = lang_names[n]) != 0; n++)
	64	if (mask & (1U << n))
	65	len += strlen (lang_name) + 1;
	66
	67	result = XNEWVEC (char, len);
	68	len = 0;
	69	for (n = 0; (lang_name = lang_names[n]) != 0; n++)
	70	if (mask & (1U << n))
	71	{
	72	if (len)
	73	result[len++] = '/';
	74	strcpy (result + len, lang_name);
	75	len += strlen (lang_name);
	76	}
	77
	78	result[len] = 0;
	79
	80	return result;
	81	}
	82
	83	/* Complain that switch DECODED does not apply to this front end (mask
	84	LANG_MASK). */
	85
	86	static void
	87	complain_wrong_lang (const struct cl_decoded_option *decoded,
	88	unsigned int lang_mask)
	89	{
	90	const struct cl_option *option = &cl_options[decoded->opt_index];
	91	const char *text = decoded->orig_option_with_args_text;
	92	char ok_langs = NULL, bad_lang = NULL;
	93	unsigned int opt_flags = option->flags;
	94
	95	if (!lang_hooks.complain_wrong_lang_p (option))
	96	return;
	97
	98	opt_flags &= ((1U << cl_lang_count) - 1) \| CL_DRIVER;
	99	if (opt_flags != CL_DRIVER)
	100	ok_langs = write_langs (opt_flags);
	101	if (lang_mask != CL_DRIVER)
	102	bad_lang = write_langs (lang_mask);
	103
	104	if (opt_flags == CL_DRIVER)
	105	error ("command line option %qs is valid for the driver but not for %s",
	106	text, bad_lang);
	107	else if (lang_mask == CL_DRIVER)
	108	gcc_unreachable ();
	109	else
	110	/* Eventually this should become a hard error IMO. */
	111	warning (0, "command line option %qs is valid for %s but not for %s",
	112	text, ok_langs, bad_lang);
113
114	free (ok_langs);
115	free (bad_lang);
116	}
117
118	/* Buffer the unknown option described by the string OPT. Currently,
119	we only complain about unknown -Wno-* options if they may have
120	prevented a diagnostic. Otherwise, we just ignore them. Note that
121	if we do complain, it is only as a warning, not an error; passing
122	the compiler an unrecognised -Wno-* option should never change
123	whether the compilation succeeds or fails. */
124
125	static void
126	postpone_unknown_option_warning (const char *opt)
127	{
9771b263	128	ignored_options.safe_push (opt);
c98cd5bf JM	129	}
	130
	131	/* Produce a warning for each option previously buffered. */
	132
	133	void
	134	print_ignored_options (void)
	135	{
9771b263	136	while (!ignored_options.is_empty ())
c98cd5bf JM	137	{
	138	const char *opt;
	139
9771b263	140	opt = ignored_options.pop ();
c98cd5bf JM	141	warning_at (UNKNOWN_LOCATION, 0,
	142	"unrecognized command line option \"%s\"", opt);
	143	}
	144	}
	145
	146	/* Handle an unknown option DECODED, returning true if an error should
	147	be given. */
	148
	149	static bool
	150	unknown_option_callback (const struct cl_decoded_option *decoded)
	151	{
	152	const char *opt = decoded->arg;
	153
	154	if (opt[1] == 'W' && opt[2] == 'n' && opt[3] == 'o' && opt[4] == '-'
	155	&& !(decoded->errors & CL_ERR_NEGATIVE))
	156	{
	157	/* We don't generate warnings for unknown -Wno-* options unless
	158	we issue diagnostics. */
	159	postpone_unknown_option_warning (opt);
	160	return false;
	161	}
	162	else
	163	return true;
	164	}
	165
c98cd5bf JM	166	/* Handle a front-end option; arguments and return value as for
	167	handle_option. */
	168
	169	static bool
	170	lang_handle_option (struct gcc_options *opts,
	171	struct gcc_options *opts_set,
	172	const struct cl_decoded_option *decoded,
	173	unsigned int lang_mask ATTRIBUTE_UNUSED, int kind,
	174	location_t loc,
	175	const struct cl_option_handlers *handlers,
	176	diagnostic_context *dc)
	177	{
	178	gcc_assert (opts == &global_options);
	179	gcc_assert (opts_set == &global_options_set);
	180	gcc_assert (dc == global_dc);
	181	gcc_assert (decoded->canonical_option_num_elements <= 2);
	182	return lang_hooks.handle_option (decoded->opt_index, decoded->arg,
	183	decoded->value, kind, loc, handlers);
	184	}
	185
	186	/* Handle FILENAME from the command line. */
	187
	188	static void
	189	add_input_filename (const char *filename)
	190	{
	191	num_in_fnames++;
	192	in_fnames = XRESIZEVEC (const char *, in_fnames, num_in_fnames);
	193	in_fnames[num_in_fnames - 1] = filename;
	194	}
	195
	196	/* Handle the vector of command line options (located at LOC), storing
	197	the results of processing DECODED_OPTIONS and DECODED_OPTIONS_COUNT
	198	in OPTS and OPTS_SET and using DC for diagnostic state. LANG_MASK
	199	contains has a single bit set representing the current language.
	200	HANDLERS describes what functions to call for the options. */
	201
	202	static void
	203	read_cmdline_options (struct gcc_options opts, struct gcc_options opts_set,
	204	struct cl_decoded_option *decoded_options,
	205	unsigned int decoded_options_count,
	206	location_t loc,
	207	unsigned int lang_mask,
	208	const struct cl_option_handlers *handlers,
	209	diagnostic_context *dc)
	210	{
	211	unsigned int i;
	212
	213	for (i = 1; i < decoded_options_count; i++)
	214	{
	215	if (decoded_options[i].opt_index == OPT_SPECIAL_input_file)
	216	{
	217	/* Input files should only ever appear on the main command
	218	line. */
	219	gcc_assert (opts == &global_options);
	220	gcc_assert (opts_set == &global_options_set);
	221
a803773f	222	if (opts->x_main_input_filename == NULL)
c98cd5bf	223	{
a803773f JM	224	opts->x_main_input_filename = decoded_options[i].arg;
	225	opts->x_main_input_baselength
	226	= base_of_path (opts->x_main_input_filename,
	227	&opts->x_main_input_basename);
c98cd5bf JM	228	}
	229	add_input_filename (decoded_options[i].arg);
	230	continue;
	231	}
	232
	233	read_cmdline_option (opts, opts_set,
	234	decoded_options + i, loc, lang_mask, handlers,
	235	dc);
	236	}
	237	}
	238
	239	/* Language mask determined at initialization. */
	240	static unsigned int initial_lang_mask;
	241
	242	/* Initialize global options-related settings at start-up. */
	243
	244	void
	245	init_options_once (void)
	246	{
	247	/* Perform language-specific options initialization. */
	248	initial_lang_mask = lang_hooks.option_lang_mask ();
	249
	250	lang_hooks.initialize_diagnostics (global_dc);
	251	}
	252
	253	/* Decode command-line options to an array, like
	254	decode_cmdline_options_to_array and with the same arguments but
	255	using the default lang_mask. */
	256
	257	void
	258	decode_cmdline_options_to_array_default_mask (unsigned int argc,
	259	const char **argv,
	260	struct cl_decoded_option **decoded_options,
	261	unsigned int *decoded_options_count)
	262	{
	263	decode_cmdline_options_to_array (argc, argv,
	264	initial_lang_mask \| CL_COMMON \| CL_TARGET,
	265	decoded_options, decoded_options_count);
	266	}
	267
	268	/* Set *HANDLERS to the default set of option handlers for use in the
	269	compilers proper (not the driver). */
	270	void
	271	set_default_handlers (struct cl_option_handlers *handlers)
	272	{
	273	handlers->unknown_option_callback = unknown_option_callback;
	274	handlers->wrong_lang_callback = complain_wrong_lang;
c98cd5bf JM	275	handlers->num_handlers = 3;
	276	handlers->handlers[0].handler = lang_handle_option;
	277	handlers->handlers[0].mask = initial_lang_mask;
	278	handlers->handlers[1].handler = common_handle_option;
	279	handlers->handlers[1].mask = CL_COMMON;
	280	handlers->handlers[2].handler = target_handle_option;
	281	handlers->handlers[2].mask = CL_TARGET;
	282	}
	283
	284	/* Parse command line options and set default flag values. Do minimal
	285	options processing. The decoded options are in *DECODED_OPTIONS
	286	and *DECODED_OPTIONS_COUNT; settings go in OPTS, OPTS_SET and DC;
	287	the options are located at LOC. */
	288	void
	289	decode_options (struct gcc_options opts, struct gcc_options opts_set,
	290	struct cl_decoded_option *decoded_options,
	291	unsigned int decoded_options_count,
	292	location_t loc, diagnostic_context *dc)
	293	{
	294	struct cl_option_handlers handlers;
	295
	296	unsigned int lang_mask;
	297
	298	lang_mask = initial_lang_mask;
	299
	300	set_default_handlers (&handlers);
	301
c98cd5bf JM	302	default_options_optimization (opts, opts_set,
	303	decoded_options, decoded_options_count,
	304	loc, lang_mask, &handlers, dc);
	305
c98cd5bf JM	306	read_cmdline_options (opts, opts_set,
	307	decoded_options, decoded_options_count,
	308	loc, lang_mask,
	309	&handlers, dc);
	310
299404a1	311	finish_options (opts, opts_set, loc);
c98cd5bf JM	312	}
	313
	314	/* Process common options that have been deferred until after the
	315	handlers have been called for all options. */
	316
21bf1558 JM	317	void
	318	handle_common_deferred_options (void)
	319	{
	320	unsigned int i;
	321	cl_deferred_option *opt;
9771b263 DN	322	vec<cl_deferred_option> v;
	323
	324	if (common_deferred_options)
	325	v = ((vec<cl_deferred_option> ) common_deferred_options);
	326	else
6e1aa848	327	v = vNULL;
21bf1558	328
299404a1 JM	329	if (flag_dump_all_passed)
	330	enable_rtl_dump_file ();
	331
78c60e3d SS	332	if (flag_opt_info)
	333	opt_info_switch_p (NULL);
	334
9771b263	335	FOR_EACH_VEC_ELT (v, i, opt)
21bf1558 JM	336	{
	337	switch (opt->opt_index)
	338	{
	339	case OPT_fcall_used_:
	340	fix_register (opt->arg, 0, 1);
	341	break;
	342
	343	case OPT_fcall_saved_:
	344	fix_register (opt->arg, 0, 0);
	345	break;
	346
299404a1 JM	347	case OPT_fdbg_cnt_:
	348	dbg_cnt_process_opt (opt->arg);
	349	break;
	350
	351	case OPT_fdbg_cnt_list:
	352	dbg_cnt_list_all_counters ();
	353	break;
	354
	355	case OPT_fdebug_prefix_map_:
	356	add_debug_prefix_map (opt->arg);
	357	break;
	358
21bf1558	359	case OPT_fdump_:
47e0da37	360	if (!g->get_dumps ()->dump_switch_p (opt->arg))
21bf1558 JM	361	error ("unrecognized command line option %<-fdump-%s%>", opt->arg);
	362	break;
	363
78c60e3d SS	364	case OPT_fopt_info_:
78c60e3d SS	365	if (!opt_info_switch_p (opt->arg))
2b4e6bf1	366	error ("unrecognized command line option %<-fopt-info-%s%>",
78c60e3d SS	367	opt->arg);
	368	break;
	369
226c52aa XDL	370	case OPT_fenable_:
	371	case OPT_fdisable_:
	372	if (opt->opt_index == OPT_fenable_)
	373	enable_pass (opt->arg);
	374	else
	375	disable_pass (opt->arg);
	376	break;
	377
21bf1558 JM	378	case OPT_ffixed_:
	379	/* Deferred. */
	380	fix_register (opt->arg, 1, 1);
	381	break;
	382
	383	case OPT_fplugin_:
	384	#ifdef ENABLE_PLUGIN
	385	add_new_plugin (opt->arg);
	386	#else
	387	error ("plugin support is disabled; configure with --enable-plugin");
	388	#endif
	389	break;
	390
	391	case OPT_fplugin_arg_:
	392	#ifdef ENABLE_PLUGIN
	393	parse_plugin_arg_opt (opt->arg);
	394	#else
	395	error ("plugin support is disabled; configure with --enable-plugin");
	396	#endif
	397	break;
	398
299404a1 JM	399	case OPT_frandom_seed:
	400	/* The real switch is -fno-random-seed. */
	401	if (!opt->value)
	402	set_random_seed (NULL);
	403	break;
	404
	405	case OPT_frandom_seed_:
	406	set_random_seed (opt->arg);
	407	break;
	408
21bf1558 JM	409	case OPT_fstack_limit:
21bf1558 JM	410	/* The real switch is -fno-stack-limit. */
299404a1 JM	411	if (!opt->value)
299404a1 JM	412	stack_limit_rtx = NULL_RTX;
21bf1558 JM	413	break;
	414
	415	case OPT_fstack_limit_register_:
	416	{
	417	int reg = decode_reg_name (opt->arg);
	418	if (reg < 0)
	419	error ("unrecognized register name %qs", opt->arg);
	420	else
	421	stack_limit_rtx = gen_rtx_REG (Pmode, reg);
	422	}
	423	break;
	424
	425	case OPT_fstack_limit_symbol_:
	426	stack_limit_rtx = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (opt->arg));
	427	break;
	428
	429	default:
	430	gcc_unreachable ();
	431	}
	432	}
	433	}