X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbemain.c;h=28f6c39606f071852beac9abec8cd4a8c1a4640b;hb=1553e92153d3b718a7f5575dcbbe8abbffc579c0;hp=e28167878a28ea820722606197a188aca483ac49;hpb=845f7e2b0ae9bb45d90ed278d599a6bab7c5dd6c;p=libfirm diff --git a/ir/be/bemain.c b/ir/be/bemain.c index e28167878..28f6c3960 100644 --- a/ir/be/bemain.c +++ b/ir/be/bemain.c @@ -73,6 +73,7 @@ #include "be_dbgout.h" #include "beirg.h" #include "bestack.h" +#include "beemitter.h" #define NEW_ID(s) new_id_from_chars(s, sizeof(s) - 1) @@ -80,12 +81,13 @@ static be_options_t be_options = { DUMP_NONE, /* dump flags */ BE_TIME_OFF, /* no timing */ - 0, /* no opt profile */ + false, /* profile_generate */ + false, /* profile_use */ 0, /* try to omit frame pointer */ 0, /* create PIC code */ BE_VERIFY_WARN, /* verification level: warn */ - "i44pc52.info.uni-karlsruhe.de", /* ilp server */ - "cplex", /* ilp solver */ + "", /* ilp server */ + "", /* ilp solver */ 0, /* enable statistic event dumping */ "", /* print stat events */ }; @@ -127,18 +129,15 @@ static const lc_opt_table_entry_t be_main_options[] = { LC_OPT_ENT_ENUM_MASK("dump", "dump irg on several occasions", &dump_var), LC_OPT_ENT_BOOL ("omitfp", "omit frame pointer", &be_options.omit_fp), LC_OPT_ENT_BOOL ("pic", "create PIC code", &be_options.pic), - LC_OPT_ENT_ENUM_PTR ("verify", "verify the backend irg", &verify_var), + LC_OPT_ENT_ENUM_INT ("verify", "verify the backend irg", &verify_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 FIRM_STATISTICS + LC_OPT_ENT_BOOL ("profilegenerate", "instrument the code for execution count profiling", &be_options.opt_profile_generate), + LC_OPT_ENT_BOOL ("profileuse", "use existing profile data", &be_options.opt_profile_use), LC_OPT_ENT_BOOL ("statev", "dump statistic events", &be_options.statev), - LC_OPT_ENT_STR ("filtev", "filter for stat events (regex if support is active", &be_options.filtev, sizeof(be_options.filtev)), -#endif + LC_OPT_ENT_STR ("filtev", "filter for stat events (regex if support is active", be_options.filtev), -#ifdef WITH_ILP - LC_OPT_ENT_STR ("ilp.server", "the ilp server name", be_options.ilp_server, sizeof(be_options.ilp_server)), - LC_OPT_ENT_STR ("ilp.solver", "the ilp solver name", be_options.ilp_solver, sizeof(be_options.ilp_solver)), -#endif /* WITH_ILP */ + LC_OPT_ENT_STR("ilp.server", "the ilp server name", be_options.ilp_server), + LC_OPT_ENT_STR("ilp.solver", "the ilp solver name", be_options.ilp_solver), LC_OPT_LAST }; @@ -362,7 +361,6 @@ static be_main_env_t *be_init_env(be_main_env_t *env, FILE *file_handle) memset(asm_constraint_flags, 0, sizeof(asm_constraint_flags)); env->arch_env = arch_env_init(isa_if, file_handle, env); - be_dbg_open(); return env; } @@ -371,9 +369,6 @@ static be_main_env_t *be_init_env(be_main_env_t *env, FILE *file_handle) */ static void be_done_env(be_main_env_t *env) { - arch_env_done(env->arch_env); - be_dbg_close(); - pmap_destroy(env->ent_trampoline_map); pmap_destroy(env->ent_pic_symbol_map); free_type(env->pic_trampolines_type); @@ -425,6 +420,10 @@ static void initialize_birg(be_irg_t *birg, ir_graph *irg, be_main_env_t *env) /* Remove critical edges */ remove_critical_cf_edges_ex(irg, /*ignore_exception_edges=*/0); + /* For code generation all unreachable code and Bad nodes should be gone */ + remove_unreachable_code(irg); + remove_bads(irg); + /* Ensure, that the ir_edges are computed. */ edges_assure(irg); @@ -480,6 +479,17 @@ void be_lower_for_target(void) set_irp_phase_state(phase_low); } +static void emit_global_asms(void) +{ + size_t n = get_irp_n_asms(); + size_t i; + for (i = 0; i < n; ++i) { + be_emit_cstring("#APP\n"); + be_emit_ident(get_irp_asm(i)); + be_emit_cstring("\n#NO_APP\n"); + } +} + /** * The Firm backend main loop. * Do architecture specific lowering for all graphs @@ -493,7 +503,6 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) static const char suffix[] = ".prof"; size_t i, num_birgs; - int stat_active = 0; be_main_env_t env; char prof_filename[256]; be_irg_t *birgs; @@ -511,9 +520,12 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) be_init_env(&env, file_handle); env.cup_name = cup_name; + be_dbg_open(); be_dbg_unit_begin(cup_name); be_dbg_types(); + emit_global_asms(); + arch_env = env.arch_env; /* backend may provide an ordered list of irgs where code should be @@ -539,24 +551,23 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) Get the filename for the profiling data. Beware: '\0' is already included in sizeof(suffix) */ - sprintf(prof_filename, "%.*s%s\n", (int)(sizeof(prof_filename) - sizeof(suffix)), cup_name, suffix); - - /* - 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 = ir_profile_instrument(prof_filename, profile_default); + sprintf(prof_filename, "%.*s%s", + (int)(sizeof(prof_filename) - sizeof(suffix)), cup_name, suffix); + + if (be_options.opt_profile_use) { + bool res = ir_profile_read(prof_filename); + if (!res) { + fprintf(stderr, "Warning: Couldn't read profile data '%s'\n", + prof_filename); + } + } + if (be_options.opt_profile_generate) { + ir_graph *prof_init_irg + = ir_profile_instrument(prof_filename); initialize_birg(&birgs[num_birgs], prof_init_irg, &env); num_birgs++; - } else { - ir_profile_read(prof_filename); } -#ifdef FIRM_STATISTICS - stat_active = stat_is_active(); -#endif /* FIRM_STATISTICS */ - /* For all graphs */ for (i = 0; i < num_birgs; ++i) { be_irg_t *birg = &birgs[i]; @@ -566,7 +577,7 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) /* set the current graph (this is important for several firm functions) */ current_ir_graph = irg; - stat_ev_if { + if (stat_ev_enabled) { stat_ev_ctx_push_fobj("bemain_irg", irg); be_stat_ev("bemain_insns_start", be_count_insns(irg)); be_stat_ev("bemain_blocks_start", be_count_blocks(irg)); @@ -601,10 +612,11 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) dump(DUMP_ABI, irg, "abi"); } - /* we have to do cfopt+remove_critical_edges as we can't have Bad-blocks - * or critical edges in the backend */ - optimize_cf(irg); + /* We can't have Bad-blocks or critical edges in the backend. + * Before removing Bads, we remove unreachable code. */ + optimize_graph_df(irg); remove_critical_cf_edges(irg); + remove_bads(irg); /* We often have dead code reachable through out-edges here. So for * now we rebuild edges (as we need correct user count for code @@ -696,7 +708,7 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) be_sched_verify(irg, be_options.verify_option); be_timer_pop(T_VERIFY); - stat_ev_if { + if (stat_ev_enabled) { stat_ev_dbl("bemain_costs_before_ra", be_estimate_irg_costs(irg, birg->exec_freq)); be_stat_ev("bemain_insns_before_ra", be_count_insns(irg)); @@ -706,27 +718,10 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) /* Do register allocation */ be_allocate_registers(irg); -#ifdef FIRM_STATISTICS stat_ev_dbl("bemain_costs_before_ra", be_estimate_irg_costs(irg, birg->exec_freq)); -#endif dump(DUMP_RA, irg, "ra"); - /* let the code generator prepare the graph for emitter */ - be_timer_push(T_FINISH); - if (arch_env->impl->after_ra != NULL) - arch_env->impl->after_ra(irg); - be_timer_pop(T_FINISH); - - /* fix stack offsets */ - be_timer_push(T_ABI); - be_abi_fix_stack_nodes(irg); - be_remove_dead_nodes_from_schedule(irg); - be_abi_fix_stack_bias(irg); - be_timer_pop(T_ABI); - - dump(DUMP_SCHED, irg, "fix_stack_after_ra"); - be_timer_push(T_FINISH); if (arch_env->impl->finish != NULL) arch_env->impl->finish(irg); @@ -734,7 +729,7 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) dump(DUMP_FINAL, irg, "finish"); - stat_ev_if { + if (stat_ev_enabled) { be_stat_ev("bemain_insns_finish", be_count_insns(irg)); be_stat_ev("bemain_blocks_finish", be_count_blocks(irg)); } @@ -801,7 +796,10 @@ static void be_main_loop(FILE *file_handle, const char *cup_name) stat_ev_ctx_pop("bemain_irg"); } + arch_env_done(arch_env); + be_dbg_unit_end(); + be_dbg_close(); ir_profile_free(); be_done_env(&env); @@ -824,7 +822,6 @@ void be_main(FILE *file_handle, const char *cup_name) ir_timer_reset_and_start(t); } -#ifdef FIRM_STATISTICS if (be_options.statev) { const char *dot = strrchr(cup_name, '.'); const char *pos = dot ? dot : cup_name + strlen(cup_name); @@ -836,14 +833,13 @@ void be_main(FILE *file_handle, const char *cup_name) stat_ev_begin(buf, be_options.filtev); stat_ev_ctx_push_str("bemain_compilation_unit", cup_name); } -#endif be_main_loop(file_handle, cup_name); if (be_options.timing == BE_TIME_ON) { ir_timer_stop(t); ir_timer_leave_high_priority(); - stat_ev_if { + if (stat_ev_enabled) { stat_ev_dbl("bemain_backend_time", ir_timer_elapsed_msec(t)); } else { double val = ir_timer_elapsed_usec(t) / 1000.0; @@ -851,12 +847,10 @@ void be_main(FILE *file_handle, const char *cup_name) } } -#ifdef FIRM_STATISTICS if (be_options.statev) { stat_ev_ctx_pop("bemain_compilation_unit"); stat_ev_end(); } -#endif } static int do_lower_for_target(ir_prog *irp, void *context)