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author | Neil Booth <neil@daikokuya.co.uk> | 2003-06-28 06:18:10 +0000 |
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committer | Neil Booth <neil@gcc.gnu.org> | 2003-06-28 06:18:10 +0000 |
commit | 9756310a6efc9bcf05f0d0996b2d1ee4b6777c51 (patch) | |
tree | ac5ad4358cf1509d02037b019f635c885b68d262 | |
parent | f7400894d99e0482401d74affbd81ff1851423e1 (diff) | |
download | gcc-9756310a6efc9bcf05f0d0996b2d1ee4b6777c51.zip gcc-9756310a6efc9bcf05f0d0996b2d1ee4b6777c51.tar.gz gcc-9756310a6efc9bcf05f0d0996b2d1ee4b6777c51.tar.bz2 |
Makefile.in: Update.
* Makefile.in: Update.
* opts.c: Include tm_p.h.
(handle_options): Make static.
(decode_options): Copied from toplev.c.
* opts.h (decode_options): New.
* toplev.c (parse_options_and_default_flags): Move most to opts.c,
some to...
(general_init): ...here.
(toplev_main): Use decode_options instead.
* toplev.h (save_argc, save_argv): New.
From-SVN: r68629
-rw-r--r-- | gcc/ChangeLog | 13 | ||||
-rw-r--r-- | gcc/Makefile.in | 2 | ||||
-rw-r--r-- | gcc/opts.c | 181 | ||||
-rw-r--r-- | gcc/opts.h | 3 | ||||
-rw-r--r-- | gcc/toplev.c | 185 | ||||
-rw-r--r-- | gcc/toplev.h | 4 |
6 files changed, 200 insertions, 188 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 747bf5d..cc37c33 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,16 @@ +2003-06-28 Neil Booth <neil@daikokuya.co.uk> + + * Makefile.in: Update. + * opts.c: Include tm_p.h. + (handle_options): Make static. + (decode_options): Copied from toplev.c. + * opts.h (decode_options): New. + * toplev.c (parse_options_and_default_flags): Move most to opts.c, + some to... + (general_init): ...here. + (toplev_main): Use decode_options instead. + * toplev.h (save_argc, save_argv): New. + 2003-06-28 Kazu Hirata <kazu@cs.umass.edu> * explow.c (find_next_ref): Remove. diff --git a/gcc/Makefile.in b/gcc/Makefile.in index 773fd03..a558ffb 100644 --- a/gcc/Makefile.in +++ b/gcc/Makefile.in @@ -1483,7 +1483,7 @@ diagnostic.o : diagnostic.c diagnostic.h real.h diagnostic.def \ input.h toplev.h intl.h langhooks.h $(LANGHOOKS_DEF_H) opts.o : opts.c opts.h options.h toplev.h $(CONFIG_H) $(SYSTEM_H) \ coretypes.h $(TREE_H) $(TM_H) $(LANGHOOKS_H) $(GGC_H) $(RTL_H) \ - output.h diagnostic.h + output.h diagnostic.h $(TM_P_H) toplev.o : toplev.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(TREE_H) $(RTL_H) \ function.h flags.h xcoffout.h input.h $(INSN_ATTR_H) output.h diagnostic.h \ debug.h insn-config.h intl.h $(RECOG_H) Makefile toplev.h \ @@ -34,6 +34,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #include "toplev.h" #include "params.h" #include "diagnostic.h" +#include "tm_p.h" /* For OPTIMIZATION_OPTIONS. */ /* Value of the -G xx switch, and whether it was passed or not. */ unsigned HOST_WIDE_INT g_switch_value; @@ -133,6 +134,7 @@ static unsigned int handle_option (char **argv, unsigned int lang_mask); static char *write_langs (unsigned int lang_mask); static void complain_wrong_lang (const char *, const struct cl_option *, unsigned int lang_mask); +static void handle_options (unsigned int, char **, unsigned int lang_mask); /* Perform a binary search to find which option the command-line INPUT matches. Returns its index in the option array, and N_OPTS @@ -404,7 +406,7 @@ handle_option (char **argv, unsigned int lang_mask) /* Decode and handle the vector of command line options. LANG_MASK contains has a single bit set representing the current language. */ -void +static void handle_options (unsigned int argc, char **argv, unsigned int lang_mask) { unsigned int n, i; @@ -421,6 +423,183 @@ handle_options (unsigned int argc, char **argv, unsigned int lang_mask) } } +/* Parse command line options and set default flag values. Do minimal + options processing. */ +void +decode_options (int argc, char **argv) +{ + int i, lang_mask; + + /* Save in case md file wants to emit args as a comment. */ + save_argc = argc; + save_argv = argv; + + /* Perform language-specific options initialization. */ + lang_mask = (*lang_hooks.init_options) (); + + /* Scan to see what optimization level has been specified. That will + determine the default value of many flags. */ + for (i = 1; i < argc; i++) + { + if (!strcmp (argv[i], "-O")) + { + optimize = 1; + optimize_size = 0; + } + else if (argv[i][0] == '-' && argv[i][1] == 'O') + { + /* Handle -Os, -O2, -O3, -O69, ... */ + char *p = &argv[i][2]; + + if ((p[0] == 's') && (p[1] == 0)) + { + optimize_size = 1; + + /* Optimizing for size forces optimize to be 2. */ + optimize = 2; + } + else + { + const int optimize_val = read_integral_parameter (p, p - 2, -1); + if (optimize_val != -1) + { + optimize = optimize_val; + optimize_size = 0; + } + } + } + } + + if (!optimize) + { + flag_merge_constants = 0; + } + + if (optimize >= 1) + { + flag_defer_pop = 1; + flag_thread_jumps = 1; +#ifdef DELAY_SLOTS + flag_delayed_branch = 1; +#endif +#ifdef CAN_DEBUG_WITHOUT_FP + flag_omit_frame_pointer = 1; +#endif + flag_guess_branch_prob = 1; + flag_cprop_registers = 1; + flag_loop_optimize = 1; + flag_crossjumping = 1; + flag_if_conversion = 1; + flag_if_conversion2 = 1; + } + + if (optimize >= 2) + { + flag_optimize_sibling_calls = 1; + flag_cse_follow_jumps = 1; + flag_cse_skip_blocks = 1; + flag_gcse = 1; + flag_expensive_optimizations = 1; + flag_strength_reduce = 1; + flag_rerun_cse_after_loop = 1; + flag_rerun_loop_opt = 1; + flag_caller_saves = 1; + flag_force_mem = 1; + flag_peephole2 = 1; +#ifdef INSN_SCHEDULING + flag_schedule_insns = 1; + flag_schedule_insns_after_reload = 1; +#endif + flag_regmove = 1; + flag_strict_aliasing = 1; + flag_delete_null_pointer_checks = 1; + flag_reorder_blocks = 1; + flag_reorder_functions = 1; + } + + if (optimize >= 3) + { + flag_inline_functions = 1; + flag_rename_registers = 1; + flag_unswitch_loops = 1; + flag_unit_at_a_time = 1; + } + + if (optimize < 2 || optimize_size) + { + align_loops = 1; + align_jumps = 1; + align_labels = 1; + align_functions = 1; + + /* Don't reorder blocks when optimizing for size because extra + jump insns may be created; also barrier may create extra padding. + + More correctly we should have a block reordering mode that tried + to minimize the combined size of all the jumps. This would more + or less automatically remove extra jumps, but would also try to + use more short jumps instead of long jumps. */ + flag_reorder_blocks = 0; + } + + /* Initialize whether `char' is signed. */ + flag_signed_char = DEFAULT_SIGNED_CHAR; +#ifdef DEFAULT_SHORT_ENUMS + /* Initialize how much space enums occupy, by default. */ + flag_short_enums = DEFAULT_SHORT_ENUMS; +#endif + + /* Initialize target_flags before OPTIMIZATION_OPTIONS so the latter can + modify it. */ + 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; +#endif + +#ifdef OPTIMIZATION_OPTIONS + /* Allow default optimizations to be specified on a per-machine basis. */ + OPTIMIZATION_OPTIONS (optimize, optimize_size); +#endif + + handle_options (argc, argv, lang_mask); + + if (flag_pie) + flag_pic = flag_pie; + if (flag_pic && !flag_pie) + flag_shlib = 1; + + if (flag_no_inline == 2) + flag_no_inline = 0; + else + flag_really_no_inline = flag_no_inline; + + /* Set flag_no_inline before the post_options () hook. The C front + ends use it to determine tree inlining defaults. FIXME: such + code should be lang-independent when all front ends use tree + inlining, in which case it, and this condition, should be moved + to the top of process_options() instead. */ + if (optimize == 0) + { + /* Inlining does not work if not optimizing, + so force it not to be done. */ + flag_no_inline = 1; + warn_inline = 0; + + /* The c_decode_option function and decode_option hook set + this to `2' if -Wall is used, so we can avoid giving out + lots of errors for people who don't realize what -Wall does. */ + if (warn_uninitialized == 1) + warning ("-Wuninitialized is not supported without -O"); + } + + if (flag_really_no_inline == 2) + flag_really_no_inline = flag_no_inline; +} + /* Handle target- and language-independent options. Return zero to generate an "unknown option" message. */ static int @@ -21,8 +21,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #ifndef GCC_OPTS_H #define GCC_OPTS_H -extern void handle_options (unsigned int argc, char **argv, - unsigned int lang_mask); +extern void decode_options (int argc, char **argv); struct cl_option { diff --git a/gcc/toplev.c b/gcc/toplev.c index 3c85676..42b8c46 100644 --- a/gcc/toplev.c +++ b/gcc/toplev.c @@ -105,7 +105,6 @@ extern tree last_assemble_variable_decl; extern void reg_alloc (void); static void general_init (char *); -static void parse_options_and_default_flags (int, char **); static void do_compile (void); static void process_options (void); static void backend_init (void); @@ -4590,23 +4589,6 @@ general_init (char *argv0) init_stringpool (); init_ttree (); -} - -/* Parse command line options and set default flag values, called - after language-independent option-independent initialization. Do - minimal options processing. Outputting diagnostics is OK, but GC - and identifier hashtables etc. are not initialized yet. - - Return nonzero to suppress compiler back end initialization. */ -static void -parse_options_and_default_flags (int argc, char **argv) -{ - int i, lang_mask; - - /* Save in case md file wants to emit args as a comment. */ - save_argc = argc; - save_argv = argv; - /* Initialize register usage now so switches may override. */ init_reg_sets (); @@ -4615,171 +4597,6 @@ parse_options_and_default_flags (int argc, char **argv) /* This must be done after add_params but before argument processing. */ init_ggc_heuristics(); - - /* Perform language-specific options initialization. */ - lang_mask = (*lang_hooks.init_options) (); - - /* Scan to see what optimization level has been specified. That will - determine the default value of many flags. */ - for (i = 1; i < argc; i++) - { - if (!strcmp (argv[i], "-O")) - { - optimize = 1; - optimize_size = 0; - } - else if (argv[i][0] == '-' && argv[i][1] == 'O') - { - /* Handle -Os, -O2, -O3, -O69, ... */ - char *p = &argv[i][2]; - - if ((p[0] == 's') && (p[1] == 0)) - { - optimize_size = 1; - - /* Optimizing for size forces optimize to be 2. */ - optimize = 2; - } - else - { - const int optimize_val = read_integral_parameter (p, p - 2, -1); - if (optimize_val != -1) - { - optimize = optimize_val; - optimize_size = 0; - } - } - } - } - - if (!optimize) - { - flag_merge_constants = 0; - } - - if (optimize >= 1) - { - flag_defer_pop = 1; - flag_thread_jumps = 1; -#ifdef DELAY_SLOTS - flag_delayed_branch = 1; -#endif -#ifdef CAN_DEBUG_WITHOUT_FP - flag_omit_frame_pointer = 1; -#endif - flag_guess_branch_prob = 1; - flag_cprop_registers = 1; - flag_loop_optimize = 1; - flag_crossjumping = 1; - flag_if_conversion = 1; - flag_if_conversion2 = 1; - } - - if (optimize >= 2) - { - flag_optimize_sibling_calls = 1; - flag_cse_follow_jumps = 1; - flag_cse_skip_blocks = 1; - flag_gcse = 1; - flag_expensive_optimizations = 1; - flag_strength_reduce = 1; - flag_rerun_cse_after_loop = 1; - flag_rerun_loop_opt = 1; - flag_caller_saves = 1; - flag_force_mem = 1; - flag_peephole2 = 1; -#ifdef INSN_SCHEDULING - flag_schedule_insns = 1; - flag_schedule_insns_after_reload = 1; -#endif - flag_regmove = 1; - flag_strict_aliasing = 1; - flag_delete_null_pointer_checks = 1; - flag_reorder_blocks = 1; - flag_reorder_functions = 1; - } - - if (optimize >= 3) - { - flag_inline_functions = 1; - flag_rename_registers = 1; - flag_unswitch_loops = 1; - flag_unit_at_a_time = 1; - } - - if (optimize < 2 || optimize_size) - { - align_loops = 1; - align_jumps = 1; - align_labels = 1; - align_functions = 1; - - /* Don't reorder blocks when optimizing for size because extra - jump insns may be created; also barrier may create extra padding. - - More correctly we should have a block reordering mode that tried - to minimize the combined size of all the jumps. This would more - or less automatically remove extra jumps, but would also try to - use more short jumps instead of long jumps. */ - flag_reorder_blocks = 0; - } - - /* Initialize whether `char' is signed. */ - flag_signed_char = DEFAULT_SIGNED_CHAR; -#ifdef DEFAULT_SHORT_ENUMS - /* Initialize how much space enums occupy, by default. */ - flag_short_enums = DEFAULT_SHORT_ENUMS; -#endif - - /* Initialize target_flags before OPTIMIZATION_OPTIONS so the latter can - modify it. */ - 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; -#endif - -#ifdef OPTIMIZATION_OPTIONS - /* Allow default optimizations to be specified on a per-machine basis. */ - OPTIMIZATION_OPTIONS (optimize, optimize_size); -#endif - - handle_options (argc, argv, lang_mask); - - if (flag_pie) - flag_pic = flag_pie; - if (flag_pic && !flag_pie) - flag_shlib = 1; - - if (flag_no_inline == 2) - flag_no_inline = 0; - else - flag_really_no_inline = flag_no_inline; - - /* Set flag_no_inline before the post_options () hook. The C front - ends use it to determine tree inlining defaults. FIXME: such - code should be lang-independent when all front ends use tree - inlining, in which case it, and this condition, should be moved - to the top of process_options() instead. */ - if (optimize == 0) - { - /* Inlining does not work if not optimizing, - so force it not to be done. */ - flag_no_inline = 1; - warn_inline = 0; - - /* The c_decode_option function and decode_option hook set - this to `2' if -Wall is used, so we can avoid giving out - lots of errors for people who don't realize what -Wall does. */ - if (warn_uninitialized == 1) - warning ("-Wuninitialized is not supported without -O"); - } - - if (flag_really_no_inline == 2) - flag_really_no_inline = flag_no_inline; } /* Process the options that have been parsed. */ @@ -5169,7 +4986,7 @@ toplev_main (int argc, char **argv) /* Parse the options and do minimal processing; basically just enough to default flags appropriately. */ - parse_options_and_default_flags (argc, argv); + decode_options (argc, argv); /* Exit early if we can (e.g. -help). */ if (!exit_after_options) diff --git a/gcc/toplev.h b/gcc/toplev.h index 323cde9..16cfacd 100644 --- a/gcc/toplev.h +++ b/gcc/toplev.h @@ -102,6 +102,10 @@ extern const char *asm_file_name; extern bool exit_after_options; extern bool version_flag; +/* Copy of arguments to toplev_main. */ +extern int save_argc; +extern char **save_argv; + extern int target_flags_explicit; /* See toplev.c. */ |