X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbemain.c;h=005223936792fd513bfb0e7879f12443981501ab;hb=5cc462a3b818894990ff363e93a0cd4ab38fa503;hp=1500fcffab750647a890368a3d77108f1fb06550;hpb=910faff26707e8176272f14977ef830d6c680970;p=libfirm diff --git a/ir/be/bemain.c b/ir/be/bemain.c index 1500fcffa..005223936 100644 --- a/ir/be/bemain.c +++ b/ir/be/bemain.c @@ -30,20 +30,15 @@ #include "irloop_t.h" #include "irtools.h" #include "irvrfy.h" +#include "irprintf.h" #include "return.h" #include "firmstat.h" #include "cfopt.h" #include "execfreq.h" #include "bearch.h" -#include "firm/bearch_firm.h" -#include "ia32/bearch_ia32.h" -#include "arm/bearch_arm.h" -#include "ppc32/bearch_ppc32.h" -#include "mips/bearch_mips.h" - #include "be_t.h" -#include "benumb_t.h" +#include "bemodule.h" #include "beutil.h" #include "benode_t.h" #include "beirgmod.h" @@ -67,16 +62,19 @@ #include "beprofile.h" #include "be_dbgout.h" +#ifdef WITH_ILP +#include "beilpsched.h" +#endif /* WITH_ILP */ + /* options visible for anyone */ static be_options_t be_options = { DUMP_NONE, /* dump flags */ BE_TIME_OFF, /* no timing */ - BE_SCHED_SELECT_HEUR, /* mueller heuristic selector */ 0, /* no opt profile */ - 0, /* disable mris */ 1, /* try to omit frame pointer */ - 0, /* no stabs debugging output */ + 0, /* always stabs debugging output */ BE_VRFY_WARN, /* verification level: warn */ + BE_SCHED_LIST, /* scheduler: list scheduler */ "i44pc52.info.uni-karlsruhe.de", /* ilp server */ "cplex" /* ilp solver */ }; @@ -84,16 +82,11 @@ static be_options_t be_options = { /* config file. */ static char config_file[256] = { 0 }; -/* register allocator to use. */ -static const be_ra_t *ra = &be_ra_chordal_allocator; - /* back end instruction set architecture to use */ -static const arch_isa_if_t *isa_if = &ia32_isa_if; +static const arch_isa_if_t *isa_if = NULL; #ifdef WITH_LIBCORE -static lc_opt_entry_t *be_grp_root = NULL; - /* possible dumping options */ static const lc_opt_enum_mask_items_t dump_items[] = { { "none", DUMP_NONE }, @@ -108,24 +101,6 @@ static const lc_opt_enum_mask_items_t dump_items[] = { { NULL, 0 } }; -/* register allocators */ -static const lc_opt_enum_const_ptr_items_t ra_items[] = { - { "chordal", &be_ra_chordal_allocator }, - { "external", &be_ra_external_allocator }, - { NULL, NULL } -}; - -/* instruction set architectures. */ -static const lc_opt_enum_const_ptr_items_t isa_items[] = { - { "ia32", &ia32_isa_if }, -#if 0 - { "arm", &arm_isa_if }, - { "ppc32", &ppc32_isa_if }, - { "mips", &mips_isa_if }, -#endif - { NULL, NULL } -}; - /* verify options. */ static const lc_opt_enum_int_items_t vrfy_items[] = { { "off", BE_VRFY_OFF }, @@ -134,49 +109,37 @@ static const lc_opt_enum_int_items_t vrfy_items[] = { { NULL, 0 } }; -/* schedule selector options. */ -static const lc_opt_enum_int_items_t sched_select_items[] = { - { "trivial", BE_SCHED_SELECT_TRIVIAL }, - { "random", BE_SCHED_SELECT_RANDOM }, - { "regpress", BE_SCHED_SELECT_REGPRESS }, - { "muchnik", BE_SCHED_SELECT_MUCHNIK }, - { "heur", BE_SCHED_SELECT_HEUR }, - { "hmuchnik", BE_SCHED_SELECT_HMUCHNIK }, - { NULL, 0 } +/* scheduling options. */ +static const lc_opt_enum_int_items_t sched_items[] = { + { "list", BE_SCHED_LIST }, +#ifdef WITH_ILP + { "ilp", BE_SCHED_ILP }, +#endif /* WITH_ILP */ + { NULL, 0 } }; static lc_opt_enum_mask_var_t dump_var = { &be_options.dump_flags, dump_items }; -static lc_opt_enum_const_ptr_var_t ra_var = { - (const void **) &ra, ra_items -}; - -static lc_opt_enum_const_ptr_var_t isa_var = { - (const void **) &isa_if, isa_items -}; - static lc_opt_enum_int_var_t vrfy_var = { &be_options.vrfy_option, vrfy_items }; -static lc_opt_enum_int_var_t sched_select_var = { - &be_options.sched_select, sched_select_items +static lc_opt_enum_int_var_t sched_var = { + &be_options.scheduler, sched_items }; static const lc_opt_table_entry_t be_main_options[] = { - LC_OPT_ENT_STR ("config", "read another config file containing backend options", config_file, sizeof(config_file)), - LC_OPT_ENT_ENUM_MASK("dump", "dump irg on several occasions", &dump_var), - LC_OPT_ENT_ENUM_PTR ("ra", "register allocator", &ra_var), - LC_OPT_ENT_ENUM_PTR ("isa", "the instruction set architecture", &isa_var), - LC_OPT_ENT_NEGBOOL ("noomitfp", "do not omit frame pointer", &be_options.omit_fp), - LC_OPT_ENT_BOOL ("stabs", "enable stabs debug support", &be_options.stabs_debug_support), - LC_OPT_ENT_ENUM_PTR ("vrfy", "verify the backend irg (off, warn, assert)", &vrfy_var), - LC_OPT_ENT_BOOL ("time", "get backend timing statistics", &be_options.timing), - LC_OPT_ENT_BOOL ("profile", "instrument the code for execution count profiling", &be_options.opt_profile), - LC_OPT_ENT_BOOL ("sched.mris", "enable mris schedule preparation", &be_options.mris), - LC_OPT_ENT_ENUM_PTR ("sched.select", "schedule node selector (trivial, regpress, muchnik, heur, hmuchnik)", &sched_select_var), + LC_OPT_ENT_STR ("config", "read another config file containing backend options", config_file, sizeof(config_file)), + LC_OPT_ENT_ENUM_MASK("dump", "dump irg on several occasions", &dump_var), + LC_OPT_ENT_NEGBOOL ("noomitfp", "do not omit frame pointer", &be_options.omit_fp), + LC_OPT_ENT_BOOL ("stabs", "enable stabs debug support", &be_options.stabs_debug_support), + LC_OPT_ENT_ENUM_PTR ("vrfy", "verify the backend irg", &vrfy_var), + LC_OPT_ENT_BOOL ("time", "get backend timing statistics", &be_options.timing), + LC_OPT_ENT_BOOL ("profile", "instrument the code for execution count profiling", &be_options.opt_profile), + LC_OPT_ENT_ENUM_PTR ("sched", "select a scheduler", &sched_var), + LC_OPT_ENT_STR ("statfile", "append statistics to file statfile", &be_options.stat_file_name, sizeof(be_options.stat_file_name)), #ifdef WITH_ILP LC_OPT_ENT_STR ("ilp.server", "the ilp server name", be_options.ilp_server, sizeof(be_options.ilp_server)), @@ -187,43 +150,46 @@ static const lc_opt_table_entry_t be_main_options[] = { #endif /* WITH_LIBCORE */ +static be_module_list_entry_t *isa_ifs = NULL; + +void be_register_isa_if(const char *name, const arch_isa_if_t *isa) +{ + if(isa_if == NULL) + isa_if = isa; + + be_add_module_to_list(&isa_ifs, name, (void*) isa); +} + void be_opt_register(void) { #ifdef WITH_LIBCORE - int i; - lc_opt_entry_t *be_grp_ra; + lc_opt_entry_t *be_grp; static int run_once = 0; - if (! run_once) { - run_once = 1; - be_grp_root = lc_opt_get_grp(firm_opt_get_root(), "be"); - be_grp_ra = lc_opt_get_grp(be_grp_root, "ra"); + if (run_once) { + return; + } + run_once = 1; - lc_opt_add_table(be_grp_root, be_main_options); + be_init_modules(); - /* register allocator options */ - for(i = 0; ra_items[i].name != NULL; ++i) { - const be_ra_t *ra = ra_items[i].value; - ra->register_options(be_grp_ra); - } + be_grp = lc_opt_get_grp(firm_opt_get_root(), "be"); + lc_opt_add_table(be_grp, be_main_options); - /* register isa options */ - for(i = 0; isa_items[i].name != NULL; ++i) { - const arch_isa_if_t *isa = isa_items[i].value; - isa->register_options(be_grp_root); - } - } + be_add_module_list_opt(be_grp, "isa", "the instruction set architecture", + &isa_ifs, (void**) &isa_if); #endif /* WITH_LIBCORE */ } /* Parse one argument. */ int be_parse_arg(const char *arg) { #ifdef WITH_LIBCORE + lc_opt_entry_t *be_grp = lc_opt_get_grp(firm_opt_get_root(), "be"); if (strcmp(arg, "help") == 0 || (arg[0] == '?' && arg[1] == '\0')) { - lc_opt_print_help(be_grp_root, stdout); + lc_opt_print_help(be_grp, stdout); return -1; } - return lc_opt_from_single_arg(be_grp_root, NULL, arg, NULL); + return lc_opt_from_single_arg(be_grp, NULL, arg, NULL); #else return 0; #endif /* WITH_LIBCORE */ @@ -251,12 +217,7 @@ static void be_sched_vrfy(ir_graph *irg, int vrfy_opt) { const backend_params *be_init(void) { be_opt_register(); - - be_sched_init(); - be_numbering_init(); - be_copy_opt_init(); - copystat_init(); - phi_class_init(); + be_init_modules(); if (isa_if->get_params) return isa_if->get_params(); @@ -350,18 +311,13 @@ static void initialize_birg(be_irg_t *birg, ir_graph *irg, be_main_env_t *env) /* Remove critical edges */ remove_critical_cf_edges(irg); - /* Compute the dominance information. */ - free_dom(irg); - compute_doms(irg); - /* Ensure, that the ir_edges are computed. */ edges_assure(irg); - /* check, if the dominance property is fulfilled. */ - be_check_dominance(irg); - /* reset the phi handler. */ be_phi_handler_reset(env->phi_handler); + + set_irg_phase_state(irg, phase_backend); } #ifdef WITH_LIBCORE @@ -417,6 +373,9 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) static const char suffix[] = ".prof"; be_irg_t *birgs; unsigned num_birgs; + ir_graph **irg_list, **backend_irg_list; + + be_ra_timer_t *ra_timer; #ifdef WITH_LIBCORE lc_timer_t *t_abi = NULL; @@ -428,7 +387,6 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) lc_timer_t *t_emit = NULL; lc_timer_t *t_other = NULL; lc_timer_t *t_verify = NULL; - be_ra_timer_t *ra_timer; if (be_options.timing == BE_TIME_ON) { t_abi = lc_timer_register("beabi", "be abi introduction"); @@ -450,16 +408,20 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) be_dbg_so(env.db_handle, cup_name); be_dbg_types(env.db_handle); + /* backend may provide an ordered list of irgs where code should be generated for */ + irg_list = NEW_ARR_F(ir_graph *, 0); + backend_irg_list = arch_isa_get_backend_irg_list(isa, &irg_list); + /* we might need 1 birg more for instrumentation constructor */ - num_birgs = get_irp_n_irgs(); + num_birgs = backend_irg_list ? ARR_LEN(backend_irg_list) : get_irp_n_irgs(); birgs = alloca(sizeof(birgs[0]) * (num_birgs + 1)); /* First: initialize all birgs */ - for(i = 0; i < get_irp_n_irgs(); ++i) { - ir_graph *irg = get_irp_irg(i); - + for(i = 0; i < num_birgs; ++i) { + ir_graph *irg = backend_irg_list ? backend_irg_list[i] : get_irp_irg(i); initialize_birg(&birgs[i], irg, &env); } + DEL_ARR_F(irg_list); /* Get the filename for the profiling data. @@ -478,17 +440,29 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) initialize_birg(&birgs[num_birgs], prof_init_irg, &env); num_birgs++; set_method_img_section(get_irg_entity(prof_init_irg), section_constructors); - } - else { + } else { be_profile_read(prof_filename); } /* For all graphs */ for (i = 0; i < num_birgs; ++i) { - be_irg_t *birg = & birgs[i]; + be_irg_t *birg = &birgs[i]; ir_graph *irg = birg->irg; optimization_state_t state; const arch_code_generator_if_t *cg_if; + char irg_name[128]; + + /* set the current graph (this is important for several firm functions) */ + current_ir_graph = irg; + +#ifdef FIRM_STATISTICS + if(be_stat_ev_is_active()) { + ir_snprintf(irg_name, sizeof(irg_name), "%F", irg); + be_stat_tags[STAT_TAG_CLS] = ""; + be_stat_tags[STAT_TAG_IRG] = irg_name; + be_stat_ev_push(be_stat_tags, STAT_TAG_LAST, be_stat_file); + } +#endif /* stop and reset timers */ BE_TIMER_ONLY( @@ -504,14 +478,16 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) ); BE_TIMER_PUSH(t_other); /* t_other */ - /** - * Create execution frequencies from profile data or estimate some - */ - if(be_profile_has_data()) { - birg->execfreqs = be_create_execfreqs_from_profile(irg); - } else { - birg->execfreqs = compute_execfreq(irg, 10); + /* Verify the initial graph */ + BE_TIMER_PUSH(t_verify); + if (be_options.vrfy_option == BE_VRFY_WARN) { + irg_verify(irg, VRFY_ENFORCE_SSA); + be_check_dominance(irg); + } else if (be_options.vrfy_option == BE_VRFY_ASSERT) { + assert(irg_verify(irg, VRFY_ENFORCE_SSA) && "irg verification failed"); + assert(be_check_dominance(irg) && "Dominance verification failed"); } + BE_TIMER_POP(t_verify); BE_TIMER_ONLY(num_nodes_b = get_num_reachable_nodes(irg)); @@ -524,9 +500,6 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) /* some transformations need to be done before abi introduce */ arch_code_generator_before_abi(birg->cg); - /* set the current graph (this is important for several firm functions) */ - current_ir_graph = irg; - /* reset the phi handler. */ be_phi_handler_reset(env.phi_handler); @@ -538,6 +511,14 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) dump(DUMP_ABI, irg, "-abi", dump_ir_block_graph); be_do_stat_nodes(irg, "02 Abi"); + if (be_options.vrfy_option == BE_VRFY_WARN) { + be_check_dominance(irg); + be_verify_out_edges(irg); + } else if (be_options.vrfy_option == BE_VRFY_ASSERT) { + assert(be_verify_out_edges(irg)); + assert(be_check_dominance(irg) && "Dominance verification failed"); + } + /* generate code */ BE_TIMER_PUSH(t_codegen); arch_code_generator_prepare_graph(birg->cg); @@ -545,20 +526,31 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) be_do_stat_nodes(irg, "03 Prepare"); - /* - Since the code generator made a lot of new nodes and skipped - a lot of old ones, we should do dead node elimination here. - Note that this requires disabling the edges here. - */ + /* Transformation may produce nodes only reachable via out edges, kill them. */ +#if 1 edges_deactivate(irg); - //dead_node_elimination(irg); edges_activate(irg); - - /* Compute loop nesting information (for weighting copies) */ - construct_cf_backedges(irg); +#endif dump(DUMP_PREPARED, irg, "-prepared", dump_ir_block_graph); BE_TIMER_ONLY(num_nodes_r = get_num_reachable_nodes(irg)); + if (be_options.vrfy_option == BE_VRFY_WARN) { + be_check_dominance(irg); + be_verify_out_edges(irg); + } else if (be_options.vrfy_option == BE_VRFY_ASSERT) { + assert(be_verify_out_edges(irg)); + assert(be_check_dominance(irg) && "Dominance verification failed"); + } + + /** + * Create execution frequencies from profile data or estimate some + */ + if (be_profile_has_data()) { + birg->exec_freq = be_create_execfreqs_from_profile(irg); + } else { + birg->exec_freq = compute_execfreq(irg, 10); + } + /* let backend prepare scheduling */ BE_TIMER_PUSH(t_codegen); arch_code_generator_before_sched(birg->cg); @@ -566,7 +558,20 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) /* schedule the irg */ BE_TIMER_PUSH(t_sched); - list_sched(birg, &be_options); + switch (be_options.scheduler) { + default: + fprintf(stderr, "Warning: invalid scheduler (%d) selected, falling back to list scheduler.\n", be_options.scheduler); + case BE_SCHED_LIST: + list_sched(birg, &be_options); + break; +#ifdef WITH_ILP + case BE_SCHED_ILP: + be_ilp_sched(birg); + //fprintf(stderr, "Warning: ILP scheduler not yet fully implemented, falling back to list scheduler.\n"); + //list_sched(birg, &be_options); + break; +#endif /* WITH_ILP */ + }; BE_TIMER_POP(t_sched); dump(DUMP_SCHED, irg, "-sched", dump_ir_block_graph_sched); @@ -613,11 +618,25 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) arch_code_generator_before_ra(birg->cg); BE_TIMER_POP(t_codegen); +#ifdef FIRM_STATISTICS + if(be_stat_ev_is_active()) { + be_stat_ev_l("costs_before_ra", + (long) be_estimate_irg_costs(irg, env.arch_env, birg->exec_freq)); + } +#endif + /* Do register allocation */ BE_TIMER_PUSH(t_regalloc); - ra_timer = ra->allocate(birg); + be_allocate_registers(birg); BE_TIMER_POP(t_regalloc); +#ifdef FIRM_STATISTICS + if(be_stat_ev_is_active()) { + be_stat_ev_l("costs_after_ra", + (long) be_estimate_irg_costs(irg, env.arch_env, birg->exec_freq)); + } +#endif + dump(DUMP_RA, irg, "-ra", dump_ir_block_graph_sched); be_do_stat_nodes(irg, "06 Register Allocation"); @@ -633,6 +652,8 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) be_abi_fix_stack_bias(birg->abi); BE_TIMER_POP(t_abi); + dump(DUMP_SCHED, irg, "-fix_stack_after_ra", dump_ir_block_graph_sched); + BE_TIMER_PUSH(t_finish); arch_code_generator_finish(birg->cg); BE_TIMER_POP(t_finish); @@ -663,7 +684,7 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) arch_code_generator_done(birg->cg); BE_TIMER_POP(t_emit); - dump(DUMP_FINAL, irg, "-end", dump_ir_extblock_graph_sched); + dump(DUMP_FINAL, irg, "-end", dump_ir_block_graph_sched); BE_TIMER_PUSH(t_abi); be_abi_free(birg->abi); @@ -675,13 +696,25 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) BE_TIMER_ONLY(num_nodes_a = get_num_reachable_nodes(irg)); BE_TIMER_POP(t_other); -#define LC_EMIT(timer) printf("%-20s: %.3lf msec\n", lc_timer_get_description(timer), (double)lc_timer_elapsed_usec(timer) / 1000.0) -#define LC_EMIT_RA(timer) printf("\t%-20s: %.3lf msec\n", lc_timer_get_description(timer), (double)lc_timer_elapsed_usec(timer) / 1000.0) +#define LC_EMIT(timer) \ + if(!be_stat_ev_is_active()) { \ + printf("%-20s: %.3lf msec\n", lc_timer_get_description(timer), (double)lc_timer_elapsed_usec(timer) / 1000.0); \ + } else { \ + be_stat_ev_l(lc_timer_get_name(timer), lc_timer_elapsed_msec(timer)); \ + } +#define LC_EMIT_RA(timer) \ + if(!be_stat_ev_is_active()) { \ + printf("\t%-20s: %.3lf msec\n", lc_timer_get_description(timer), (double)lc_timer_elapsed_usec(timer) / 1000.0); \ + } else { \ + be_stat_ev_l(lc_timer_get_name(timer), lc_timer_elapsed_msec(timer)); \ + } BE_TIMER_ONLY( - printf("==>> IRG %s <<==\n", get_entity_name(get_irg_entity(irg))); - printf("# nodes at begin: %u\n", num_nodes_b); - printf("# nodes before ra: %u\n", num_nodes_r); - printf("# nodes at end: %u\n\n", num_nodes_a); + if(!be_stat_ev_is_active()) { + printf("==>> IRG %s <<==\n", get_entity_name(get_irg_entity(irg))); + printf("# nodes at begin: %u\n", num_nodes_b); + printf("# nodes before ra: %u\n", num_nodes_r); + printf("# nodes at end: %u\n\n", num_nodes_a); + } LC_EMIT(t_abi); LC_EMIT(t_codegen); LC_EMIT(t_sched); @@ -706,11 +739,17 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) #undef LC_EMIT_RA #undef LC_EMIT - free_execfreq(birg->execfreqs); + be_free_birg(birg); /* switched off due to statistics (statistic module needs all irgs) */ +#ifdef FIRM_STATISTICS if (! stat_is_active()) +#endif free_ir_graph(irg); + + if(be_stat_ev_is_active()) { + be_stat_ev_pop(); + } } be_profile_free(); be_done_env(&env); @@ -725,9 +764,7 @@ void be_main(FILE *file_handle, const char *cup_name) { #ifdef WITH_LIBCORE lc_timer_t *t = NULL; -#endif /* WITH_LIBCORE */ -#ifdef WITH_LIBCORE /* The user specified another config file to read. do that now. */ if(strlen(config_file) > 0) { FILE *f; @@ -747,20 +784,33 @@ void be_main(FILE *file_handle, const char *cup_name) lc_timer_reset_and_start(t); } + +#ifdef FIRM_STATISTICS + be_init_stat_file(be_options.stat_file_name, cup_name); +#endif #endif /* WITH_LIBCORE */ /* never build code for pseudo irgs */ set_visit_pseudo_irgs(0); be_node_init(); + be_main_loop(file_handle, cup_name); #ifdef WITH_LIBCORE if (be_options.timing == BE_TIME_ON) { lc_timer_stop(t); lc_timer_leave_high_priority(); - printf("%-20s: %lu msec\n", "BEMAINLOOP", lc_timer_elapsed_msec(t)); + if(be_stat_ev_is_active()) { + be_stat_ev_l("backend_time", lc_timer_elapsed_msec(t)); + } else { + printf("%-20s: %lu msec\n", "BEMAINLOOP", lc_timer_elapsed_msec(t)); + } } + +#ifdef FIRM_STATISTICS + be_close_stat_file(); +#endif #endif /* WITH_LIBCORE */ } @@ -776,6 +826,7 @@ void be_set_debug_retrieve(retrieve_dbg_func func) { const char *be_retrieve_dbg_info(const dbg_info *dbg, unsigned *line) { if (retrieve_dbg) return retrieve_dbg(dbg, line); + *line = 0; return NULL; } @@ -791,6 +842,6 @@ int be_put_ignore_regs(const be_irg_t *birg, const arch_register_class_t *cls, b arch_put_non_ignore_regs(birg->main_env->arch_env, cls, bs); bitset_flip_all(bs); be_abi_put_ignore_regs(birg->abi, cls, bs); - return bitset_popcnt(bs); + return bitset_popcnt(bs); }