X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbemain.c;h=751c445e2f833904472478be1850ab8b9e8e4b97;hb=48f0393daa5d5a14ed7e3e32ee2b090759c9371e;hp=aa1e4a970c65ccd37ff330513fb2fbc427ded5a6;hpb=fd4dcd7692b1269638e87b0c27241fa029472ec3;p=libfirm diff --git a/ir/be/bemain.c b/ir/be/bemain.c index aa1e4a970..751c445e2 100644 --- a/ir/be/bemain.c +++ b/ir/be/bemain.c @@ -11,11 +11,6 @@ #include #include -// FIXME remove me later -#include -int fileno(FILE *stream); -int readlink(const char *path, char *buf, size_t bufsiz); - #ifdef WITH_LIBCORE #include #include @@ -70,15 +65,16 @@ int readlink(const char *path, char *buf, size_t bufsiz); #include "bestat.h" #include "beverify.h" #include "beprofile.h" +#include "beblocksched.h" +#include "be_dbgout.h" /* 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, /* always stabs debugging output */ BE_VRFY_WARN, /* verification level: warn */ "i44pc52.info.uni-karlsruhe.de", /* ilp server */ "cplex" /* ilp solver */ @@ -137,16 +133,6 @@ 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 }, - { "regpress", BE_SCHED_SELECT_REGPRESS }, - { "muchnik", BE_SCHED_SELECT_MUCHNIK }, - { "heur", BE_SCHED_SELECT_HEUR }, - { "hmuchnik", BE_SCHED_SELECT_HMUCHNIK }, - { NULL, 0 } -}; - static lc_opt_enum_mask_var_t dump_var = { &be_options.dump_flags, dump_items }; @@ -163,21 +149,16 @@ 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 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_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_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), + 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), #ifdef WITH_ILP LC_OPT_ENT_STR ("ilp.server", "the ilp server name", be_options.ilp_server, sizeof(be_options.ilp_server)), @@ -196,9 +177,9 @@ void be_opt_register(void) 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"); + 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); @@ -213,6 +194,11 @@ void be_opt_register(void) const arch_isa_if_t *isa = isa_items[i].value; isa->register_options(be_grp_root); } + + /* scheduler register options */ + list_sched_register_options(be_grp_root); + + be_block_schedule_register_options(be_grp_root); } #endif /* WITH_LIBCORE */ } @@ -293,12 +279,14 @@ static be_main_env_t *be_init_env(be_main_env_t *env, FILE *file_handle) env->phi_handler = be_phi_handler_new(env->arch_env); arch_env_push_irn_handler(env->arch_env, env->phi_handler); + env->db_handle = be_options.stabs_debug_support ? be_stabs_open(file_handle) : be_nulldbg_open(); return env; } static void be_done_env(be_main_env_t *env) { env->arch_env->isa->impl->done(env->arch_env->isa); + be_dbg_close(env->db_handle); be_phi_handler_free(env->phi_handler); obstack_free(&env->obst, NULL); } @@ -402,8 +390,9 @@ static void initialize_birg(be_irg_t *birg, ir_graph *irg, be_main_env_t *env) * and call the architecture specific code generator. * * @param file_handle the file handle the output will be written to + * @param cup_name name of the compilation unit */ -static void be_main_loop(FILE *file_handle) +static void be_main_loop(FILE *file_handle, const char *cup_name) { int i; arch_isa_t *isa; @@ -412,26 +401,24 @@ static void be_main_loop(FILE *file_handle) unsigned num_nodes_a = 0; unsigned num_nodes_r = 0; char prof_filename[256]; - char path[256]; static const char suffix[] = ".prof"; be_irg_t *birgs; unsigned num_birgs; + be_ra_timer_t *ra_timer; + #ifdef WITH_LIBCORE - //lc_timer_t *t_prolog = NULL; - lc_timer_t *t_abi = NULL; - lc_timer_t *t_codegen = NULL; - lc_timer_t *t_sched = NULL; - lc_timer_t *t_constr = NULL; + lc_timer_t *t_abi = NULL; + lc_timer_t *t_codegen = NULL; + lc_timer_t *t_sched = NULL; + lc_timer_t *t_constr = NULL; lc_timer_t *t_regalloc = NULL; - lc_timer_t *t_finish = NULL; - lc_timer_t *t_emit = NULL; - lc_timer_t *t_other = NULL; - lc_timer_t *t_verify = NULL; - be_ra_timer_t *ra_timer; + lc_timer_t *t_finish = NULL; + lc_timer_t *t_emit = NULL; + lc_timer_t *t_other = NULL; + lc_timer_t *t_verify = NULL; if (be_options.timing == BE_TIME_ON) { - //t_prolog = lc_timer_register("prolog", "prolog"); t_abi = lc_timer_register("beabi", "be abi introduction"); t_codegen = lc_timer_register("codegen", "codegeneration"); t_sched = lc_timer_register("sched", "scheduling"); @@ -448,43 +435,54 @@ static void be_main_loop(FILE *file_handle) isa = arch_env_get_isa(env.arch_env); + be_dbg_so(env.db_handle, cup_name); + be_dbg_types(env.db_handle); + + /* we might need 1 birg more for instrumentation constructor */ num_birgs = get_irp_n_irgs(); - // we might need 1 birg more for instrumentation constructor - birgs = alloca(sizeof(birgs[0]) * (num_birgs + 1)); + 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); initialize_birg(&birgs[i], irg, &env); } - /* please FIXME! I'm a dirty hack. */ - snprintf(path, sizeof(path), "/proc/self/fd/%d", fileno(file_handle)); - memset(prof_filename, 0, sizeof(path)); - readlink(path, prof_filename, sizeof(path) - sizeof(suffix)); + /* + Get the filename for the profiling data. + Beware: '\0' is already included in sizeof(suffix) + */ + memset(prof_filename, 0, sizeof(prof_filename)); + strncpy(prof_filename, cup_name, sizeof(prof_filename) - sizeof(suffix)); strcat(prof_filename, suffix); - if(be_options.opt_profile) { - ir_graph *prof_init_irg = be_profile_instrument(prof_filename); + /* + Next: Either instruments all irgs with profiling code + or try to read in profile data for current translation unit. + */ + if (be_options.opt_profile) { + ir_graph *prof_init_irg = be_profile_instrument(prof_filename, profile_default); initialize_birg(&birgs[num_birgs], prof_init_irg, &env); num_birgs++; - pset_insert_ptr(env.arch_env->constructor_entities, get_irg_entity(prof_init_irg)); - } else { + set_method_img_section(get_irg_entity(prof_init_irg), section_constructors); + } + else { be_profile_read(prof_filename); } /* For all graphs */ for (i = 0; i < num_birgs; ++i) { be_irg_t *birg = & birgs[i]; - ir_graph *irg = birg->irg; + ir_graph *irg = birg->irg; optimization_state_t state; const arch_code_generator_if_t *cg_if; - birg->execfreqs = compute_execfreq(irg, 10); + /* set the current graph (this is important for several firm functions) */ + current_ir_graph = irg; /* stop and reset timers */ BE_TIMER_ONLY( - //LC_STOP_AND_RESET_TIMER(t_prolog); LC_STOP_AND_RESET_TIMER(t_abi); LC_STOP_AND_RESET_TIMER(t_codegen); LC_STOP_AND_RESET_TIMER(t_sched); @@ -497,6 +495,15 @@ static void be_main_loop(FILE *file_handle) ); 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); + } + BE_TIMER_ONLY(num_nodes_b = get_num_reachable_nodes(irg)); /* Get the code generator interface. */ @@ -508,9 +515,6 @@ static void be_main_loop(FILE *file_handle) /* 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); @@ -530,10 +534,10 @@ static void be_main_loop(FILE *file_handle) 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. - */ + 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); @@ -605,7 +609,7 @@ static void be_main_loop(FILE *file_handle) dump(DUMP_RA, irg, "-ra", dump_ir_block_graph_sched); be_do_stat_nodes(irg, "06 Register Allocation"); - /* let the codegenerator prepare the graph for emitter */ + /* let the code generator prepare the graph for emitter */ BE_TIMER_PUSH(t_finish); arch_code_generator_after_ra(birg->cg); BE_TIMER_POP(t_finish); @@ -666,7 +670,6 @@ static void be_main_loop(FILE *file_handle) 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_prolog); LC_EMIT(t_abi); LC_EMIT(t_codegen); LC_EMIT(t_sched); @@ -706,7 +709,7 @@ static void be_main_loop(FILE *file_handle) } /* Main interface to the frontend. */ -void be_main(FILE *file_handle) +void be_main(FILE *file_handle, const char *cup_name) { #ifdef WITH_LIBCORE lc_timer_t *t = NULL; @@ -738,7 +741,7 @@ void be_main(FILE *file_handle) set_visit_pseudo_irgs(0); be_node_init(); - be_main_loop(file_handle); + be_main_loop(file_handle, cup_name); #ifdef WITH_LIBCORE if (be_options.timing == BE_TIME_ON) {