diff options
Diffstat (limited to 'gcc-4.4.0/gcc/opts.c')
| -rw-r--r-- | gcc-4.4.0/gcc/opts.c | 161 |
1 files changed, 129 insertions, 32 deletions
diff --git a/gcc-4.4.0/gcc/opts.c b/gcc-4.4.0/gcc/opts.c index 0274885da..f20b65568 100644 --- a/gcc-4.4.0/gcc/opts.c +++ b/gcc-4.4.0/gcc/opts.c @@ -43,6 +43,7 @@ along with GCC; see the file COPYING3. If not see #include "dbgcnt.h" #include "debug.h" #include "plugin.h" +#include "cgraph.h" /* Value of the -G xx switch, and whether it was passed or not. */ unsigned HOST_WIDE_INT g_switch_value; @@ -77,6 +78,9 @@ enum debug_info_type write_symbols = NO_DEBUG; the definitions of the different possible levels. */ enum debug_info_level debug_info_level = DINFO_LEVEL_NONE; +/* Whether to include line number table with TERSE-level debug info. */ +bool generate_debug_line_table = false; + /* 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 @@ -356,6 +360,7 @@ static bool flag_value_profile_transformations_set; static bool flag_peel_loops_set, flag_branch_probabilities_set; static bool flag_inline_functions_set, flag_ipa_cp_set, flag_ipa_cp_clone_set; static bool flag_predictive_commoning_set, flag_unswitch_loops_set, flag_gcse_after_reload_set; +static bool flag_limit_hot_components_set; /* Functions excluded from profiling. */ @@ -738,6 +743,39 @@ flag_instrument_functions_exclude_p (tree fndecl) return false; } +/* GCC command-line options saved to the LIPO profile data file. + See detailed comment in opts.h. */ +const char **lipo_cl_args; +unsigned num_lipo_cl_args; + +/* Inspect the given GCC command-line arguments, which are part of one GCC + switch, and decide whether or not to store these to the LIPO profile data + file. */ +static void +lipo_save_cl_args (unsigned int argc, const char **argv) +{ + unsigned int i; + const char *opt = argv[0]; + /* Store the following command-line flags to the lipo profile data file: + (1) -f... (except -frandom-seed...) + (2) -m... + (3) -W... + (4) -O... + (5) --param... + */ + if (opt[0] == '-' + && (opt[1] == 'f' || opt[1] == 'm' || opt[1] == 'W' || opt[1] == 'O' + || (strstr (opt, "--param") == opt)) + && !strstr(opt, "-frandom-seed") + && !strstr(opt, "-fripa-disallow-opt-mismatch") + && !strstr(opt, "-Wripa-opt-mismatch")) + { + num_lipo_cl_args += argc; + lipo_cl_args = XRESIZEVEC (const char *, lipo_cl_args, num_lipo_cl_args); + for (i = 0; i < argc; i++) + lipo_cl_args[num_lipo_cl_args - argc + i] = argv[i]; + } +} /* Decode and handle the vector of command line options. LANG_MASK contains has a single bit set representing the current @@ -773,6 +811,8 @@ handle_options (unsigned int argc, const char **argv, unsigned int lang_mask) n = handle_option (argv + i, lang_mask); + lipo_save_cl_args (n, argv + i); + if (!n) { n = 1; @@ -916,6 +956,7 @@ decode_options (unsigned int argc, const char **argv) flag_tree_pre = opt2; flag_tree_switch_conversion = 1; flag_ipa_cp = opt2; + flag_tree_lr_shrinking = opt2; /* Allow more virtual operators to increase alias precision. */ @@ -1777,6 +1818,31 @@ common_handle_option (size_t scode, const char *arg, int value, set_param_value ("max-inline-insns-auto", value / 2); break; + case OPT_finline_plan_: + { + const char *p, *q; + struct inline_plan_file *plan = + XCNEW (struct inline_plan_file); + + /* Inline plan option has the form + -finline-plan-<pass>=<file>. */ + for (p = arg; *p; p++) + if (*p == '=') + { + /* Everything up to but not including the '=' is the + pass name. */ + plan->pass_name = XNEWVEC(char, p - arg + 1); + memcpy (plan->pass_name, arg, p - arg); + plan->pass_name[q - arg] = 0; + /* Everything after the '=' is the file name. */ + plan->filename = xstrdup (p + 1); + } + if (!plan->pass_name) + error ("plan should be of form -finline-plan-<pass>=<file>"); + plan->next = inline_plan_files; + inline_plan_files = plan; + } + break; case OPT_finstrument_functions_exclude_function_list_: add_comma_separated_to_vector (&flag_instrument_functions_exclude_functions, arg); @@ -1835,33 +1901,10 @@ common_handle_option (size_t scode, const char *arg, int value, case OPT_fprofile_use_: profile_data_prefix = xstrdup (arg); - flag_profile_use = true; value = true; /* No break here - do -fprofile-use processing. */ case OPT_fprofile_use: - if (!flag_branch_probabilities_set) - flag_branch_probabilities = value; - if (!flag_profile_values_set) - flag_profile_values = value; - if (!flag_unroll_loops_set) - flag_unroll_loops = value; - if (!flag_peel_loops_set) - flag_peel_loops = value; - if (!flag_value_profile_transformations_set) - flag_value_profile_transformations = value; - if (!flag_inline_functions_set) - flag_inline_functions = value; - if (!flag_ipa_cp_set) - flag_ipa_cp = value; - if (!flag_ipa_cp_clone_set - && value && flag_ipa_cp) - flag_ipa_cp_clone = value; - if (!flag_predictive_commoning_set) - flag_predictive_commoning = value; - if (!flag_unswitch_loops_set) - flag_unswitch_loops = value; - if (!flag_gcse_after_reload_set) - flag_gcse_after_reload = value; + set_profile_use (value, false, false); break; case OPT_fprofile_generate_: @@ -1888,14 +1931,7 @@ common_handle_option (size_t scode, const char *arg, int value, sample_data_name = xstrdup (arg); /* No break here - do -fsample-profile processing. */ case OPT_fsample_profile: - if (!flag_unroll_loops_set) - flag_unroll_loops = value; - if (!flag_peel_loops_set) - flag_peel_loops = value; - if (!flag_tracer_set) - flag_tracer = value; - if (!flag_inline_functions_set) - flag_inline_functions = value; + set_profile_use (value, true, false); break; case OPT_fvisibility_: @@ -1951,6 +1987,15 @@ common_handle_option (size_t scode, const char *arg, int value, flag_sched_stalled_insns_dep = value; break; + case OPT_fsample_profile_aggregate_using_: + if (!strcmp (arg, "avg")) + flag_sample_profile_aggregate_using = SAMPLE_PROFILE_AGGREGATE_USING_AVG; + else if (!strcmp (arg, "max")) + flag_sample_profile_aggregate_using = SAMPLE_PROFILE_AGGREGATE_USING_MAX; + else + warning (0, "unknown sample profile aggregation method \"%s\"", arg); + break; + case OPT_fstack_check_: if (!strcmp (arg, "no")) flag_stack_check = NO_STACK_CHECK; @@ -2072,6 +2117,10 @@ common_handle_option (size_t scode, const char *arg, int value, flag_unroll_loops_set = true; break; + case OPT_flimit_hot_components: + flag_limit_hot_components_set = true; + break; + case OPT_g: set_debug_level (NO_DEBUG, DEFAULT_GDB_EXTENSIONS, arg); break; @@ -2098,6 +2147,11 @@ common_handle_option (size_t scode, const char *arg, int value, set_debug_level (DBX_DEBUG, code == OPT_gstabs_, arg); break; + case OPT_gmlt: + set_debug_level (NO_DEBUG, DEFAULT_GDB_EXTENSIONS, "1"); + generate_debug_line_table = true; + break; + case OPT_gvms: set_debug_level (VMS_DEBUG, false, arg); break; @@ -2295,6 +2349,8 @@ set_debug_level (enum debug_info_type type, int extended, const char *arg) else if (debug_info_level > 3) error ("debug output level %s is too high", arg); } + + generate_debug_line_table = debug_info_level >= DINFO_LEVEL_NORMAL; } /* Return 1 if OPTION is enabled, 0 if it is disabled, or -1 if it isn't @@ -2390,3 +2446,44 @@ enable_warning_as_error (const char *arg, int value, unsigned int lang_mask) } free (new_option); } + +/* Set FLAG_PROFILE_USE and dependent flags based on VALUE and + SAMPLE_PROFILE. This function is used to handle the + -f(no)profile-use and -fsample-profile options as well as to reset + flags if a .gcda file is not found. */ + +void +set_profile_use (bool value, bool sample_profile, bool force) +{ + if (!sample_profile) + { + flag_profile_use = value; + if (!flag_branch_probabilities_set || force) + flag_branch_probabilities = value; + if (!flag_profile_values_set || force) + flag_profile_values = value; + if (!flag_value_profile_transformations_set || force) + flag_value_profile_transformations = value; + } + if (!flag_unroll_loops_set) + flag_unroll_loops = value; + if (!flag_peel_loops_set) + flag_peel_loops = value; + if (!flag_inline_functions_set) + flag_inline_functions = value; + if (!flag_ipa_cp_set) + flag_ipa_cp = value; + if (!flag_ipa_cp_clone_set) + { + if (!flag_ipa_cp_set || flag_ipa_cp) + flag_ipa_cp_clone = value; + } + if (!flag_predictive_commoning_set) + flag_predictive_commoning = value; + if (!flag_unswitch_loops_set) + flag_unswitch_loops = value; + if (!flag_gcse_after_reload_set) + flag_gcse_after_reload = value; + if (!flag_limit_hot_components_set) + flag_limit_hot_components = value; +} |