X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbemain.c;h=97b2b5ef5114932134ac5619a44766679e59cd87;hb=6be08f9b4120afddd7849bf9bcb00c4475b0296f;hp=c717da818c09d9dc05b87a7e9548ce3b24c73e31;hpb=4df66dbb0e8a1c9f5f9def2b4555c58da9b6dd3c;p=libfirm diff --git a/ir/be/bemain.c b/ir/be/bemain.c index c717da818..97b2b5ef5 100644 --- a/ir/be/bemain.c +++ b/ir/be/bemain.c @@ -37,14 +37,8 @@ #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 "sta/bearch_sta.h" - #include "be_t.h" +#include "bemodule.h" #include "beutil.h" #include "benode_t.h" #include "beirgmod.h" @@ -66,7 +60,6 @@ #include "bestat.h" #include "beverify.h" #include "beprofile.h" -#include "beblocksched.h" #include "be_dbgout.h" #ifdef WITH_ILP @@ -89,16 +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 }, @@ -113,25 +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 - { "sta", &sta_isa_if }, - { "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 }, @@ -153,14 +122,6 @@ 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 }; @@ -172,8 +133,6 @@ static lc_opt_enum_int_var_t sched_var = { 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", &vrfy_var), @@ -191,53 +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"); - - lc_opt_add_table(be_grp_root, be_main_options); - - /* 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); - } - - /* 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); - } + if (run_once) { + return; + } + run_once = 1; - /* list scheduler register options */ - list_sched_register_options(be_grp_root); + be_init_modules(); -#ifdef WITH_ILP - /* ilp scheduler register options */ - ilpsched_register_options(be_grp_root); -#endif /* WITH_ILP */ + be_grp = lc_opt_get_grp(firm_opt_get_root(), "be"); + lc_opt_add_table(be_grp, be_main_options); - be_block_schedule_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 */ @@ -265,11 +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_copy_opt_init(); - copystat_init(); - phi_class_init(); + be_init_modules(); if (isa_if->get_params) return isa_if->get_params(); @@ -368,6 +316,8 @@ static void initialize_birg(be_irg_t *birg, ir_graph *irg, be_main_env_t *env) /* reset the phi handler. */ be_phi_handler_reset(env->phi_handler); + + set_irg_phase_state(irg, phase_backend); } #ifdef WITH_LIBCORE @@ -423,6 +373,7 @@ 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; @@ -457,16 +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. @@ -492,7 +447,7 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) /* 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; @@ -535,15 +490,6 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) } BE_TIMER_POP(t_verify); - /** - * 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); - } - BE_TIMER_ONLY(num_nodes_b = get_num_reachable_nodes(irg)); /* Get the code generator interface. */ @@ -566,6 +512,15 @@ 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); @@ -573,20 +528,29 @@ 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. - */ - edges_deactivate(irg); - //dead_node_elimination(irg); - edges_activate(irg); - - /* Compute loop nesting information (for weighting copies) */ - construct_cf_backedges(irg); + /* Transformation may produce nodes only reachable via out edges, kill them. */ + be_kill_dead_nodes(irg); 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); @@ -663,7 +627,7 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) /* 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 @@ -688,6 +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); @@ -718,7 +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); @@ -773,17 +739,7 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) #undef LC_EMIT_RA #undef LC_EMIT - free_execfreq(birg->exec_freq); - birg->exec_freq = NULL; - - if(birg->dom_front != NULL) { - be_free_dominance_frontiers(birg->dom_front); - birg->dom_front = NULL; - } - if(birg->lv != NULL) { - be_liveness_free(birg->lv); - birg->lv = NULL; - } + be_free_birg(birg); /* switched off due to statistics (statistic module needs all irgs) */ #ifdef FIRM_STATISTICS @@ -889,37 +845,3 @@ int be_put_ignore_regs(const be_irg_t *birg, const arch_register_class_t *cls, b return bitset_popcnt(bs); } - -void be_assure_liveness(be_irg_t *birg) -{ - if(birg->lv != NULL) - return; - - birg->lv = be_liveness(birg->irg); -} - -void be_invalidate_liveness(be_irg_t *birg) -{ - if(birg->lv == NULL) - return; - - be_liveness_free(birg->lv); - birg->lv = NULL; -} - -void be_assure_dom_front(be_irg_t *birg) -{ - if(birg->dom_front != NULL) - return; - - birg->dom_front = be_compute_dominance_frontiers(birg->irg); -} - -void be_invalidate_dom_front(be_irg_t *birg) -{ - if(birg->dom_front == NULL) - return; - - be_free_dominance_frontiers(birg->dom_front); - birg->dom_front = NULL; -}