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
+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
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. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "insn-attr.h" /* For INSN_SCHEDULING. */
#include "target.h"
#include "tree-pass.h"
+#include "dbgcnt.h"
+#include "debug.h"
/* Value of the -G xx switch, and whether it was passed or not. */
unsigned HOST_WIDE_INT g_switch_value;
bool warn_larger_than;
HOST_WIDE_INT larger_than_size;
-/* Nonzero means warn about constructs which might not be
- strict-aliasing safe. */
-int warn_strict_aliasing;
-
-/* Nonzero means warn about optimizations which rely on undefined
- signed overflow. */
-int warn_strict_overflow;
+/* True to warn about any function whose frame size is larger
+ * than N bytes. */
+bool warn_frame_larger_than;
+HOST_WIDE_INT frame_larger_than_size;
/* Hack for cooperation between set_Wunused and set_Wextra. */
static bool maybe_warn_unused_parameter;
the definitions of the different possible levels. */
enum debug_info_level debug_info_level = DINFO_LEVEL_NONE;
+/* A major contribution to object and executable size is debug
+ information size. A major contribution to debug information size
+ is struct descriptions replicated in several object files. The
+ following flags attempt to reduce this information. The basic
+ idea is to not emit struct debugging information in the current
+ compilation unit when that information will be generated by
+ another compilation unit.
+
+ Debug information for a struct defined in the current source
+ file should be generated in the object file. Likewise the
+ debug information for a struct defined in a header should be
+ generated in the object file of the corresponding source file.
+ Both of these case are handled when the base name of the file of
+ the struct definition matches the base name of the source file
+ of the current compilation unit. This matching emits minimal
+ struct debugging information.
+
+ The base file name matching rule above will fail to emit debug
+ information for structs defined in system headers. So a second
+ category of files includes system headers in addition to files
+ with matching bases.
+
+ The remaining types of files are library headers and application
+ headers. We cannot currently distinguish these two types. */
+
+enum debug_struct_file
+{
+ DINFO_STRUCT_FILE_NONE, /* Debug no structs. */
+ DINFO_STRUCT_FILE_BASE, /* Debug structs defined in files with the
+ same base name as the compilation unit. */
+ DINFO_STRUCT_FILE_SYS, /* Also debug structs defined in system
+ header files. */
+ DINFO_STRUCT_FILE_ANY /* Debug structs defined in all files. */
+};
+
+/* Generic structs (e.g. templates not explicitly specialized)
+ may not have a compilation unit associated with them, and so
+ may need to be treated differently from ordinary structs.
+
+ Structs only handled by reference (indirectly), will also usually
+ not need as much debugging information. */
+
+static enum debug_struct_file debug_struct_ordinary[DINFO_USAGE_NUM_ENUMS]
+ = { DINFO_STRUCT_FILE_ANY, DINFO_STRUCT_FILE_ANY, DINFO_STRUCT_FILE_ANY };
+static enum debug_struct_file debug_struct_generic[DINFO_USAGE_NUM_ENUMS]
+ = { DINFO_STRUCT_FILE_ANY, DINFO_STRUCT_FILE_ANY, DINFO_STRUCT_FILE_ANY };
+
+/* Parse the -femit-struct-debug-detailed option value
+ and set the flag variables. */
+
+#define MATCH( prefix, string ) \
+ ((strncmp (prefix, string, sizeof prefix - 1) == 0) \
+ ? ((string += sizeof prefix - 1), 1) : 0)
+
+void
+set_struct_debug_option (const char *spec)
+{
+ /* various labels for comparison */
+ static char dfn_lbl[] = "dfn:", dir_lbl[] = "dir:", ind_lbl[] = "ind:";
+ static char ord_lbl[] = "ord:", gen_lbl[] = "gen:";
+ static char none_lbl[] = "none", any_lbl[] = "any";
+ static char base_lbl[] = "base", sys_lbl[] = "sys";
+
+ enum debug_struct_file files = DINFO_STRUCT_FILE_ANY;
+ /* Default is to apply to as much as possible. */
+ enum debug_info_usage usage = DINFO_USAGE_NUM_ENUMS;
+ int ord = 1, gen = 1;
+
+ /* What usage? */
+ if (MATCH (dfn_lbl, spec))
+ usage = DINFO_USAGE_DFN;
+ else if (MATCH (dir_lbl, spec))
+ usage = DINFO_USAGE_DIR_USE;
+ else if (MATCH (ind_lbl, spec))
+ usage = DINFO_USAGE_IND_USE;
+
+ /* Generics or not? */
+ if (MATCH (ord_lbl, spec))
+ gen = 0;
+ else if (MATCH (gen_lbl, spec))
+ ord = 0;
+
+ /* What allowable environment? */
+ if (MATCH (none_lbl, spec))
+ files = DINFO_STRUCT_FILE_NONE;
+ else if (MATCH (any_lbl, spec))
+ files = DINFO_STRUCT_FILE_ANY;
+ else if (MATCH (sys_lbl, spec))
+ files = DINFO_STRUCT_FILE_SYS;
+ else if (MATCH (base_lbl, spec))
+ files = DINFO_STRUCT_FILE_BASE;
+ else
+ error ("argument %qs to %<-femit-struct-debug-detailed%> not recognized",
+ spec);
+
+ /* Effect the specification. */
+ if (usage == DINFO_USAGE_NUM_ENUMS)
+ {
+ if (ord)
+ {
+ debug_struct_ordinary[DINFO_USAGE_DFN] = files;
+ debug_struct_ordinary[DINFO_USAGE_DIR_USE] = files;
+ debug_struct_ordinary[DINFO_USAGE_IND_USE] = files;
+ }
+ if (gen)
+ {
+ debug_struct_generic[DINFO_USAGE_DFN] = files;
+ debug_struct_generic[DINFO_USAGE_DIR_USE] = files;
+ debug_struct_generic[DINFO_USAGE_IND_USE] = files;
+ }
+ }
+ else
+ {
+ if (ord)
+ debug_struct_ordinary[usage] = files;
+ if (gen)
+ debug_struct_generic[usage] = files;
+ }
+
+ if (*spec == ',')
+ set_struct_debug_option (spec+1);
+ else
+ {
+ /* No more -femit-struct-debug-detailed specifications.
+ Do final checks. */
+ if (*spec != '\0')
+ error ("argument %qs to %<-femit-struct-debug-detailed%> unknown",
+ spec);
+ if (debug_struct_ordinary[DINFO_USAGE_DIR_USE]
+ < debug_struct_ordinary[DINFO_USAGE_IND_USE]
+ || debug_struct_generic[DINFO_USAGE_DIR_USE]
+ < debug_struct_generic[DINFO_USAGE_IND_USE])
+ error ("%<-femit-struct-debug-detailed=dir:...%> must allow at least"
+ " as much as %<-femit-struct-debug-detailed=ind:...%>");
+ }
+}
+
+/* Find the base name of a path, stripping off both directories and
+ a single final extension. */
+static int
+base_of_path (const char *path, const char **base_out)
+{
+ const char *base = path;
+ const char *dot = 0;
+ const char *p = path;
+ char c = *p;
+ while (c)
+ {
+ if (IS_DIR_SEPARATOR(c))
+ {
+ base = p + 1;
+ dot = 0;
+ }
+ else if (c == '.')
+ dot = p;
+ c = *++p;
+ }
+ if (!dot)
+ dot = p;
+ *base_out = base;
+ return dot - base;
+}
+
+/* Match the base name of a file to the base name of a compilation unit. */
+
+static const char *main_input_basename;
+static int main_input_baselength;
+
+static int
+matches_main_base (const char *path)
+{
+ /* Cache the last query. */
+ static const char *last_path = NULL;
+ static int last_match = 0;
+ if (path != last_path)
+ {
+ const char *base;
+ int length = base_of_path (path, &base);
+ last_path = path;
+ last_match = (length == main_input_baselength
+ && memcmp (base, main_input_basename, length) == 0);
+ }
+ return last_match;
+}
+
+#ifdef DEBUG_DEBUG_STRUCT
+
+static int
+dump_struct_debug (tree type, enum debug_info_usage usage,
+ enum debug_struct_file criterion, int generic,
+ int matches, int result)
+{
+ /* Find the type name. */
+ tree type_decl = TYPE_STUB_DECL (type);
+ tree t = type_decl;
+ const char *name = 0;
+ if (TREE_CODE (t) == TYPE_DECL)
+ t = DECL_NAME (t);
+ if (t)
+ name = IDENTIFIER_POINTER (t);
+
+ fprintf (stderr, " struct %d %s %s %s %s %d %p %s\n",
+ criterion,
+ DECL_IN_SYSTEM_HEADER (type_decl) ? "sys" : "usr",
+ matches ? "bas" : "hdr",
+ generic ? "gen" : "ord",
+ usage == DINFO_USAGE_DFN ? ";" :
+ usage == DINFO_USAGE_DIR_USE ? "." : "*",
+ result,
+ (void*) type_decl, name);
+ return result;
+}
+#define DUMP_GSTRUCT(type, usage, criterion, generic, matches, result) \
+ dump_struct_debug (type, usage, criterion, generic, matches, result)
+
+#else
+
+#define DUMP_GSTRUCT(type, usage, criterion, generic, matches, result) \
+ (result)
+
+#endif
+
+
+bool
+should_emit_struct_debug (tree type, enum debug_info_usage usage)
+{
+ enum debug_struct_file criterion;
+ tree type_decl;
+ bool generic = lang_hooks.types.generic_p (type);
+
+ if (generic)
+ criterion = debug_struct_generic[usage];
+ else
+ criterion = debug_struct_ordinary[usage];
+
+ if (criterion == DINFO_STRUCT_FILE_NONE)
+ return DUMP_GSTRUCT (type, usage, criterion, generic, false, false);
+ if (criterion == DINFO_STRUCT_FILE_ANY)
+ return DUMP_GSTRUCT (type, usage, criterion, generic, false, true);
+
+ type_decl = TYPE_STUB_DECL (type);
+
+ if (criterion == DINFO_STRUCT_FILE_SYS && DECL_IN_SYSTEM_HEADER (type_decl))
+ return DUMP_GSTRUCT (type, usage, criterion, generic, false, true);
+
+ if (matches_main_base (DECL_SOURCE_FILE (type_decl)))
+ return DUMP_GSTRUCT (type, usage, criterion, generic, true, true);
+ return DUMP_GSTRUCT (type, usage, criterion, generic, false, false);
+}
+
/* Nonzero means use GNU-only extensions in the generated symbolic
debugging information. Currently, this only has an effect when
write_symbols is set to DBX_DEBUG, XCOFF_DEBUG, or DWARF_DEBUG. */
struct visibility_flags visibility_options;
/* What to print when a switch has no documentation. */
+#ifdef ENABLE_CHECKING
static const char undocumented_msg[] = N_("This switch lacks documentation");
+#else
+static const char undocumented_msg[] = "";
+#endif
/* Used for bookkeeping on whether user set these flags so
-fprofile-use/-fprofile-generate does not use them. */
static bool flag_unroll_loops_set, flag_tracer_set;
static bool flag_value_profile_transformations_set;
static bool flag_peel_loops_set, flag_branch_probabilities_set;
+static bool flag_inline_functions_set;
+
+/* Functions excluded from profiling. */
+
+typedef char *char_p; /* For DEF_VEC_P. */
+DEF_VEC_P(char_p);
+DEF_VEC_ALLOC_P(char_p,heap);
+
+static VEC(char_p,heap) *flag_instrument_functions_exclude_functions;
+static VEC(char_p,heap) *flag_instrument_functions_exclude_files;
+
+typedef const char *const_char_p; /* For DEF_VEC_P. */
+DEF_VEC_P(const_char_p);
+DEF_VEC_ALLOC_P(const_char_p,heap);
+
+static VEC(const_char_p,heap) *ignored_options;
/* Input file names. */
const char **in_fnames;
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. */
+
+static void postpone_unknown_option_error(const char *opt)
+{
+ VEC_safe_push (const_char_p, heap, ignored_options, opt);
+}
+
+/* Produce an error for each option previously buffered. */
+
+void print_ignored_options (void)
+{
+ location_t saved_loc = input_location;
+
+ input_location = 0;
+
+ while (!VEC_empty (const_char_p, ignored_options))
+ {
+ const char *opt;
+ opt = VEC_pop (const_char_p, ignored_options);
+ error ("unrecognized command line option \"%s\"", opt);
+ }
+
+ input_location = saved_loc;
+}
+
/* Handle the switch beginning at ARGV for the language indicated by
LANG_MASK. Returns the number of switches consumed. */
static unsigned int
opt = dup;
value = 0;
opt_index = find_opt (opt + 1, lang_mask | CL_COMMON | CL_TARGET);
+ if (opt_index == cl_options_count && opt[1] == 'W')
+ {
+ /* We don't generate errors for unknown -Wno-* options
+ unless we issue diagnostics. */
+ postpone_unknown_option_error (argv[0]);
+ result = 1;
+ goto done;
+ }
}
if (opt_index == cl_options_count)
in_fnames[num_in_fnames - 1] = filename;
}
+/* Add functions or file names to a vector of names to exclude from
+ instrumentation. */
+
+static void
+add_instrument_functions_exclude_list (VEC(char_p,heap) **pvec,
+ const char* arg)
+{
+ char *tmp;
+ char *r;
+ char *w;
+ char *token_start;
+
+ /* We never free this string. */
+ tmp = xstrdup (arg);
+
+ r = tmp;
+ w = tmp;
+ token_start = tmp;
+
+ while (*r != '\0')
+ {
+ if (*r == ',')
+ {
+ *w++ = '\0';
+ ++r;
+ VEC_safe_push (char_p, heap, *pvec, token_start);
+ token_start = w;
+ }
+ if (*r == '\\' && r[1] == ',')
+ {
+ *w++ = ',';
+ r += 2;
+ }
+ else
+ *w++ = *r++;
+ }
+ if (*token_start != '\0')
+ VEC_safe_push (char_p, heap, *pvec, token_start);
+}
+
+/* Return whether we should exclude FNDECL from instrumentation. */
+
+bool
+flag_instrument_functions_exclude_p (tree fndecl)
+{
+ if (VEC_length (char_p, flag_instrument_functions_exclude_functions) > 0)
+ {
+ const char *name;
+ int i;
+ char *s;
+
+ name = lang_hooks.decl_printable_name (fndecl, 0);
+ for (i = 0;
+ VEC_iterate (char_p, flag_instrument_functions_exclude_functions,
+ i, s);
+ ++i)
+ {
+ if (strstr (name, s) != NULL)
+ return true;
+ }
+ }
+
+ if (VEC_length (char_p, flag_instrument_functions_exclude_files) > 0)
+ {
+ const char *name;
+ int i;
+ char *s;
+
+ name = DECL_SOURCE_FILE (fndecl);
+ for (i = 0;
+ VEC_iterate (char_p, flag_instrument_functions_exclude_files, i, s);
+ ++i)
+ {
+ if (strstr (name, s) != NULL)
+ return true;
+ }
+ }
+
+ return false;
+}
+
/* Decode and handle the vector of command line options. LANG_MASK
contains has a single bit set representing the current
language. */
if (opt[0] != '-' || opt[1] == '\0')
{
if (main_input_filename == NULL)
- main_input_filename = opt;
+ {
+ main_input_filename = opt;
+ main_input_baselength
+ = base_of_path (main_input_filename, &main_input_basename);
+ }
add_input_filename (opt);
n = 1;
continue;
if (optimize >= 2)
{
+ flag_inline_small_functions = 1;
flag_thread_jumps = 1;
flag_crossjumping = 1;
flag_optimize_sibling_calls = 1;
flag_cse_follow_jumps = 1;
flag_gcse = 1;
flag_expensive_optimizations = 1;
- flag_ipa_type_escape = 1;
flag_rerun_cse_after_loop = 1;
flag_caller_saves = 1;
flag_peephole2 = 1;
flag_reorder_blocks = 1;
flag_reorder_functions = 1;
flag_tree_store_ccp = 1;
- flag_tree_store_copy_prop = 1;
flag_tree_vrp = 1;
if (!optimize_size)
/* PRE tends to generate bigger code. */
flag_tree_pre = 1;
}
+
+ /* Allow more virtual operators to increase alias precision. */
+ set_param_value ("max-aliased-vops", 500);
}
if (optimize >= 3)
{
+ flag_predictive_commoning = 1;
flag_inline_functions = 1;
flag_unswitch_loops = 1;
flag_gcse_after_reload = 1;
+ flag_tree_vectorize = 1;
+
+ /* Allow even more virtual operators. */
+ set_param_value ("max-aliased-vops", 1000);
+ set_param_value ("avg-aliased-vops", 3);
}
if (optimize < 2 || optimize_size)
if (optimize_size)
{
- /* Inlining of very small functions usually reduces total size. */
- set_param_value ("max-inline-insns-single", 5);
- set_param_value ("max-inline-insns-auto", 5);
+ /* Inlining of functions reducing size is a good idea regardless
+ of them being declared inline. */
flag_inline_functions = 1;
/* We want to crossjump as much as possible. */
if (flag_really_no_inline == 2)
flag_really_no_inline = flag_no_inline;
+ /* Inlining of functions called just once will only work if we can look
+ at the complete translation unit. */
+ if (flag_inline_functions_called_once && !flag_unit_at_a_time)
+ {
+ flag_inline_functions_called_once = 0;
+ warning (OPT_Wdisabled_optimization,
+ "-funit-at-a-time is required for inlining of functions "
+ "that are only called once");
+ }
+
/* The optimization to partition hot and cold basic blocks into separate
sections of the .o and executable files does not work (currently)
with exception handling. This is because there is no support for
}
if (! found)
- printf (_(" No options with the desired characteristics were found\n"));
+ {
+ unsigned int langs = include_flags & CL_LANG_ALL;
+
+ if (langs == 0)
+ printf (_(" No options with the desired characteristics were found\n"));
+ else
+ {
+ unsigned int i;
+
+ /* PR 31349: Tell the user how to see all of the
+ options supported by a specific front end. */
+ for (i = 0; (1U << i) < CL_LANG_ALL; i ++)
+ if ((1U << i) & langs)
+ printf (_(" None found. Use --help=%s to show *all* the options supported by the %s front-end\n"),
+ lang_names[i], lang_names[i]);
+ }
+
+ }
else if (! displayed)
printf (_(" All options with the desired characteristics have already been displayed\n"));
if (i >= cl_lang_count)
break;
if ((exclude_flags & ((1U << cl_lang_count) - 1)) != 0)
- {
- description = _("The following options are specific to the language ");
- descrip_extra = lang_names [i];
- }
+ description = _("The following options are specific to just the language ");
else
- description = _("The following options are supported by, amoung others, the language ");
+ description = _("The following options are supported by the language ");
+ descrip_extra = lang_names [i];
break;
}
}
common_handle_option (size_t scode, const char *arg, int value,
unsigned int lang_mask)
{
+ static bool verbose = false;
enum opt_code code = (enum opt_code) scode;
switch (code)
handle_param (arg);
break;
+ case OPT_v:
+ verbose = true;
+ break;
+
case OPT_fhelp:
case OPT__help:
{
unsigned int undoc_mask;
unsigned int i;
- undoc_mask = extra_warnings ? 0 : CL_UNDOCUMENTED;
+ undoc_mask = (verbose | extra_warnings) ? 0 : CL_UNDOCUMENTED;
/* First display any single language specific options. */
for (i = 0; i < cl_lang_count; i++)
print_specific_help
case OPT__target_help:
print_specific_help (CL_TARGET, CL_UNDOCUMENTED, 0);
exit_after_options = true;
+
+ /* Allow the target a chance to give the user some additional information. */
+ if (targetm.target_help)
+ targetm.target_help ();
break;
case OPT_fhelp_:
/* Walk along the argument string, parsing each word in turn.
The format is:
arg = [^]{word}[,{arg}]
- word = {optimizers|target|warnings|undocumented|params} */
+ word = {optimizers|target|warnings|undocumented|
+ params|common|<language>} */
while (* a != 0)
{
static struct
{ "params", CL_PARAMS },
{ "joined", CL_JOINED },
{ "separate", CL_SEPARATE },
+ { "common", CL_COMMON },
{ NULL, 0 }
};
unsigned int * pflags;
char * comma;
+ unsigned int lang_flag, specific_flag;
unsigned int len;
unsigned int i;
else
len = comma - a;
- for (i = 0; specifics[i].string != NULL; i++)
+ /* Check to see if the string matches an option class name. */
+ for (i = 0, specific_flag = 0; specifics[i].string != NULL; i++)
if (strncasecmp (a, specifics[i].string, len) == 0)
{
- * pflags |= specifics[i].flag;
+ specific_flag = specifics[i].flag;
+ break;
+ }
+
+ /* Check to see if the string matches a language name.
+ Note - we rely upon the alpha-sorted nature of the entries in
+ the lang_names array, specifically that shorter names appear
+ before their longer variants. (ie C before C++). That way
+ when we are attempting to match --help=c for example we will
+ match with C first and not C++. */
+ for (i = 0, lang_flag = 0; i < cl_lang_count; i++)
+ if (strncasecmp (a, lang_names[i], len) == 0)
+ {
+ lang_flag = 1U << i;
break;
}
- if (specifics[i].string == NULL)
+ if (specific_flag != 0)
{
- /* Check to see if the string matches a language name. */
- for (i = 0; i < cl_lang_count; i++)
- if (strncasecmp (a, lang_names[i], len) == 0)
- {
- * pflags |= 1U << i;
- break;
- }
-
- if (i == cl_lang_count)
- fnotice (stderr,
- "warning: unrecognized argument to --help= switch: %.*s\n",
- len, a);
+ if (lang_flag == 0)
+ * pflags |= specific_flag;
+ else
+ {
+ /* The option's argument matches both the start of a
+ language name and the start of an option class name.
+ We have a special case for when the user has
+ specified "--help=c", but otherwise we have to issue
+ a warning. */
+ if (strncasecmp (a, "c", len) == 0)
+ * pflags |= lang_flag;
+ else
+ fnotice (stderr,
+ "warning: --help argument %.*s is ambiguous, please be more specific\n",
+ len, a);
+ }
}
+ else if (lang_flag != 0)
+ * pflags |= lang_flag;
+ else
+ fnotice (stderr,
+ "warning: unrecognized argument to --help= option: %.*s\n",
+ len, a);
if (comma == NULL)
break;
break;
case OPT_Wlarger_than_:
+ /* This form corresponds to -Wlarger-than-.
+ Kept for backward compatibility.
+ Don't use it as the first argument of warning(). */
+
+ case OPT_Wlarger_than_eq:
larger_than_size = value;
warn_larger_than = value != -1;
break;
+ case OPT_Wframe_larger_than_:
+ frame_larger_than_size = value;
+ warn_frame_larger_than = value != -1;
+ break;
+
case OPT_Wstrict_aliasing:
+ set_Wstrict_aliasing (value);
+ break;
+
case OPT_Wstrict_aliasing_:
warn_strict_aliasing = value;
break;
case OPT_Wstrict_overflow:
+ warn_strict_overflow = (value
+ ? (int) WARN_STRICT_OVERFLOW_CONDITIONAL
+ : 0);
+ break;
+
case OPT_Wstrict_overflow_:
warn_strict_overflow = value;
break;
fix_register (arg, 0, 0);
break;
+ case OPT_fdbg_cnt_:
+ dbg_cnt_process_opt (arg);
+ break;
+
+ case OPT_fdbg_cnt_list:
+ dbg_cnt_list_all_counters ();
+ break;
+
+ case OPT_fdebug_prefix_map_:
+ add_debug_prefix_map (arg);
+ break;
+
case OPT_fdiagnostics_show_location_:
if (!strcmp (arg, "once"))
diagnostic_prefixing_rule (global_dc) = DIAGNOSTICS_SHOW_PREFIX_ONCE;
set_fast_math_flags (value);
break;
+ case OPT_funsafe_math_optimizations:
+ set_unsafe_math_optimizations_flags (value);
+ break;
+
case OPT_ffixed_:
fix_register (arg, 1, 1);
break;
set_param_value ("max-inline-insns-auto", value / 2);
break;
+ case OPT_finstrument_functions_exclude_function_list_:
+ add_instrument_functions_exclude_list
+ (&flag_instrument_functions_exclude_functions, arg);
+ break;
+
+ case OPT_finstrument_functions_exclude_file_list_:
+ add_instrument_functions_exclude_list
+ (&flag_instrument_functions_exclude_files, arg);
+ break;
+
case OPT_fmessage_length_:
pp_set_line_maximum_length (global_dc->printer, value);
break;
profile_arc_flag_set = true;
break;
+ case OPT_finline_functions:
+ flag_inline_functions_set = true;
+ break;
+
case OPT_fprofile_use:
if (!flag_branch_probabilities_set)
flag_branch_probabilities = value;
flag_tracer = value;
if (!flag_value_profile_transformations_set)
flag_value_profile_transformations = value;
+ if (!flag_inline_functions_set)
+ flag_inline_functions = value;
break;
case OPT_fprofile_generate:
flag_profile_values = value;
if (!flag_value_profile_transformations_set)
flag_value_profile_transformations = value;
+ if (!flag_inline_functions_set)
+ flag_inline_functions = value;
break;
case OPT_fprofile_values:
/* The real switch is -fno-random-seed. */
if (value)
return 0;
- flag_random_seed = NULL;
+ set_random_seed (NULL);
break;
case OPT_frandom_seed_:
- flag_random_seed = arg;
+ set_random_seed (arg);
break;
case OPT_fsched_verbose_:
case OPT_floop_optimize:
case OPT_frerun_loop_opt:
case OPT_fstrength_reduce:
+ case OPT_ftree_store_copy_prop:
+ case OPT_fforce_addr:
/* These are no-ops, preserved for backward compatibility. */
break;
warn_unused_value = setting;
}
+/* Used to set the level of strict aliasing warnings,
+ when no level is specified (i.e., when -Wstrict-aliasing, and not
+ -Wstrict-aliasing=level was given).
+ 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, currently 3. */
+void
+set_Wstrict_aliasing (int onoff)
+{
+ gcc_assert (onoff == 0 || onoff == 1);
+ if (onoff != 0)
+ warn_strict_aliasing = 3;
+}
+
/* The following routines are useful in setting all the flags that
-ffast-math and -fno-fast-math imply. */
void
set_fast_math_flags (int set)
{
- flag_trapping_math = !set;
flag_unsafe_math_optimizations = set;
+ set_unsafe_math_optimizations_flags (set);
flag_finite_math_only = set;
- flag_signed_zeros = !set;
flag_errno_math = !set;
if (set)
{
}
}
+/* When -funsafe-math-optimizations is set the following
+ flags are set as well. */
+void
+set_unsafe_math_optimizations_flags (int set)
+{
+ flag_trapping_math = !set;
+ flag_signed_zeros = !set;
+ flag_associative_math = set;
+ flag_reciprocal_math = set;
+}
+
/* Return true iff flags are set as if -ffast-math. */
bool
fast_math_flags_set_p (void)
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