/* Command line option handling.
- Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
Contributed by Neil Booth.
This file is part of GCC.
write_symbols is set to DBX_DEBUG, XCOFF_DEBUG, or DWARF_DEBUG. */
bool use_gnu_debug_info_extensions;
+/* The default visibility for all symbols (unless overridden) */
+enum symbol_visibility default_visibility = VISIBILITY_DEFAULT;
+
+/* Global visibility options. */
+struct visibility_flags visibility_options;
+
/* Columns of --help display. */
static unsigned int columns = 80;
static bool profile_arc_flag_set, flag_profile_values_set;
static bool flag_unroll_loops_set, flag_tracer_set;
static bool flag_value_profile_transformations_set;
+bool flag_speculative_prefetching_set;
static bool flag_peel_loops_set, flag_branch_probabilities_set;
/* Input file names. */
{
const struct cl_option *opt = &cl_options[mn];
- /* Is this switch a prefix of the input? */
- if (!strncmp (input, opt->opt_text + 1, opt->opt_len))
+ /* Is the input either an exact match or a prefix that takes a
+ joined argument? */
+ if (!strncmp (input, opt->opt_text + 1, opt->opt_len)
+ && (input[opt->opt_len] == '\0' || (opt->flags & CL_JOINED)))
{
- /* If language is OK, and the match is exact or the switch
- takes a joined argument, return it. */
- if ((opt->flags & lang_mask)
- && (input[opt->opt_len] == '\0' || (opt->flags & CL_JOINED)))
+ /* If language is OK, return it. */
+ if (opt->flags & lang_mask)
return mn;
/* If we haven't remembered a prior match, remember this
return result;
}
+/* Handle FILENAME from the command line. */
+static void
+add_input_filename (const char *filename)
+{
+ num_in_fnames++;
+ in_fnames = xrealloc (in_fnames, num_in_fnames * sizeof (in_fnames[0]));
+ in_fnames[num_in_fnames - 1] = filename;
+}
+
/* Decode and handle the vector of command line options. LANG_MASK
contains has a single bit set representing the current
language. */
}
}
-/* Handle FILENAME from the command line. */
-void
-add_input_filename (const char *filename)
-{
- num_in_fnames++;
- in_fnames = xrealloc (in_fnames, num_in_fnames * sizeof (in_fnames[0]));
- in_fnames[num_in_fnames - 1] = filename;
-}
-
/* Parse command line options and set default flag values. Do minimal
options processing. */
void
if (optimize >= 1)
{
flag_defer_pop = 1;
- flag_thread_jumps = 1;
#ifdef DELAY_SLOTS
flag_delayed_branch = 1;
#endif
flag_tree_dce = 1;
flag_tree_dom = 1;
flag_tree_dse = 1;
- flag_tree_pre = 1;
flag_tree_ter = 1;
flag_tree_live_range_split = 1;
flag_tree_sra = 1;
if (optimize >= 2)
{
+ flag_thread_jumps = 1;
flag_crossjumping = 1;
flag_optimize_sibling_calls = 1;
flag_cse_follow_jumps = 1;
flag_reorder_blocks = 1;
flag_reorder_functions = 1;
flag_unit_at_a_time = 1;
+
+ if (!optimize_size)
+ {
+ /* PRE tends to generate bigger code. */
+ flag_tree_pre = 1;
+ }
}
if (optimize >= 3)
/* 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);
- set_param_value ("max-inline-insns-rtl", 10);
flag_inline_functions = 1;
+
+ /* We want to crossjump as much as possible. */
+ set_param_value ("min-crossjump-insns", 1);
}
/* Initialize whether `char' is signed. */
target_flags = 0;
set_target_switch ("");
- /* Unwind tables are always present in an ABI-conformant IA-64
- object file, so the default should be ON. */
-#ifdef IA64_UNWIND_INFO
- flag_unwind_tables = IA64_UNWIND_INFO;
+ /* Unwind tables are always present when a target has ABI-specified unwind
+ tables, so the default should be ON. */
+#ifdef TARGET_UNWIND_INFO
+ flag_unwind_tables = TARGET_UNWIND_INFO;
#endif
#ifdef OPTIMIZATION_OPTIONS
flag_reorder_blocks_and_partition = 0;
flag_reorder_blocks = 1;
}
+
+ /* The optimization to partition hot and cold basic blocks into
+ separate sections of the .o and executable files does not currently
+ work correctly with DWARF debugging turned on. Until this is fixed
+ we will disable the optimization when DWARF debugging is set. */
+
+ if (flag_reorder_blocks_and_partition && write_symbols == DWARF2_DEBUG)
+ {
+ warning
+ ("-freorder-blocks-and-partition does not work with -g (currently)");
+ flag_reorder_blocks_and_partition = 0;
+ flag_reorder_blocks = 1;
+ }
}
/* Handle target- and language-independent options. Return zero to
case OPT_finline_limit_eq:
set_param_value ("max-inline-insns-single", value / 2);
set_param_value ("max-inline-insns-auto", value / 2);
- set_param_value ("max-inline-insns-rtl", value);
break;
case OPT_fmessage_length_:
pp_set_line_maximum_length (global_dc->printer, value);
break;
+ case OPT_fpack_struct_:
+ if (value <= 0 || (value & (value - 1)) || value > 16)
+ error("structure alignment must be a small power of two, not %d", value);
+ else
+ {
+ initial_max_fld_align = value;
+ maximum_field_alignment = value * BITS_PER_UNIT;
+ }
+ break;
+
case OPT_fpeel_loops:
flag_peel_loops_set = true;
break;
flag_tracer = value;
if (!flag_value_profile_transformations_set)
flag_value_profile_transformations = value;
+#ifdef HAVE_prefetch
+ if (0 && !flag_speculative_prefetching_set)
+ flag_speculative_prefetching = value;
+#endif
break;
case OPT_fprofile_generate:
flag_profile_values = value;
if (!flag_value_profile_transformations_set)
flag_value_profile_transformations = value;
+ if (!flag_unroll_loops_set)
+ flag_unroll_loops = value;
+#ifdef HAVE_prefetch
+ if (0 && !flag_speculative_prefetching_set)
+ flag_speculative_prefetching = value;
+#endif
break;
case OPT_fprofile_values:
flag_profile_values_set = true;
break;
+ case OPT_fvisibility_:
+ {
+ if (!strcmp(arg, "default"))
+ default_visibility = VISIBILITY_DEFAULT;
+ else if (!strcmp(arg, "internal"))
+ default_visibility = VISIBILITY_INTERNAL;
+ else if (!strcmp(arg, "hidden"))
+ default_visibility = VISIBILITY_HIDDEN;
+ else if (!strcmp(arg, "protected"))
+ default_visibility = VISIBILITY_PROTECTED;
+ else
+ error ("unrecognised visibility value \"%s\"", arg);
+ }
+ break;
+
case OPT_fvpt:
- flag_value_profile_transformations_set = value;
+ flag_value_profile_transformations_set = true;
+ break;
+
+ case OPT_fspeculative_prefetching:
+ flag_speculative_prefetching_set = true;
break;
case OPT_frandom_seed:
flag_tracer_set = true;
break;
- case OPT_ftree_points_to_:
- if (!strcmp (arg, "andersen"))
-#ifdef HAVE_BANSHEE
- flag_tree_points_to = PTA_ANDERSEN;
-#else
- warning ("Andersen's PTA not available - libbanshee not compiled.");
-#endif
- else if (!strcmp (arg, "none"))
- flag_tree_points_to = PTA_NONE;
- else
- {
- warning ("`%s`: unknown points-to analysis algorithm", arg);
- return 0;
- }
- break;
-
case OPT_funroll_loops:
flag_unroll_loops_set = true;
break;
{
value = integral_argument (equal + 1);
if (value == -1)
- error ("invalid --param value `%s'", equal + 1);
+ error ("invalid --param value %qs", equal + 1);
else
{
*equal = '\0';
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