X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbemain.c;h=82ed7e44a2c2ffe6172b2b176715e3c20e90579f;hb=ad8368234bf59eb46fbc0cfff5b7322a7efac964;hp=6d874d639e9fa727faee1ac60cdbd3b7f63b6101;hpb=136b0f5555f198d87ce0ee0725b9505e8a16293d;p=libfirm diff --git a/ir/be/bemain.c b/ir/be/bemain.c index 6d874d639..82ed7e44a 100644 --- a/ir/be/bemain.c +++ b/ir/be/bemain.c @@ -8,6 +8,7 @@ #endif #include +#include #include "obst.h" #include "bitset.h" @@ -36,16 +37,26 @@ #include "bearch_firm.h" #include "benode_t.h" #include "beirgmod.h" -#include "bedupl.h" +#include "bespillilp.h" +#include "bespillbelady.h" #include "beasm_dump_globals.h" #include "beasm_asm_gnu.h" +#include "firm2arch.h" + +#undef DUMP_BEGIN +#undef DUMP_PREPARED +#define DUMP_TRANSFORM +#define DUMP_SCHED +#define DUMP_SPILL #undef DUMP_ALLOCATED +#undef DUMP_COPYMIN +#undef DUMP_SSADESTR +#undef DUMP_END #define N_PHASES 256 - void be_init(void) { be_sched_init(); @@ -54,6 +65,7 @@ void be_init(void) be_ra_chordal_init(); be_copy_opt_init(); copystat_init(); + phi_class_init(); } static be_main_env_t *be_init_env(be_main_env_t *env) @@ -61,6 +73,8 @@ static be_main_env_t *be_init_env(be_main_env_t *env) const arch_isa_if_t *isa = &firm_isa; obstack_init(&env->obst); + env->dbg = firm_dbg_register("be.main"); + firm_dbg_set_mask(env->dbg, SET_LEVEL_1); env->arch_env = obstack_alloc(&env->obst, sizeof(env->arch_env[0])); arch_env_init(env->arch_env, isa); @@ -88,11 +102,14 @@ be_init_session_env(be_main_session_env_t *env, static void prepare_graph(be_main_session_env_t *s) { - /* - * Duplicate consts in each block - * (This is just for the firm dummy backend) - */ - // localize_consts(s->irg); + /* set the current graph (this is important for several firm functions) */ + current_ir_graph = s->irg; + + /* Let the isa prepare the graph. */ + s->main_env->arch_env->isa->prepare_graph(s->irg); + + /* Normalize proj nodes. */ + normalize_proj_nodes(s->irg); /* Remove critical edges */ remove_critical_cf_edges(s->irg); @@ -105,15 +122,13 @@ static void prepare_graph(be_main_session_env_t *s) s->dom_front = be_compute_dominance_frontiers(s->irg); /* Ensure, that the ir_edges are computed. */ - edges_assure(s->irg); + edges_activate(s->irg); /* Compute loop nesting information (for weighting copies) */ if (get_irg_loopinfo_state(s->irg) != (loopinfo_valid & loopinfo_cf_consistent)) construct_cf_backedges(s->irg); - dump_dominator_information(true); - dump_ir_block_graph(s->irg, "-prepared"); - dump_dominator_information(false); + be_check_dominance(s->irg); } static void be_main_loop(void) @@ -125,73 +140,121 @@ static void be_main_loop(void) be_init_env(&env); isa = arch_env_get_isa(env.arch_env); + /* create required irop's */ + create_bearch_asm_opcodes(); + /* For all graphs */ for(i = 0, n = get_irp_n_irgs(); i < n; ++i) { int j, m; ir_graph *irg = get_irp_irg(i); be_main_session_env_t session; + DBG((env.dbg, LEVEL_2, "====> IRG: %F\n", irg)); +#ifdef DUMP_BEGIN + dump_ir_block_graph(irg, "-begin"); +#endif + /* Init the session. */ be_init_session_env(&session, &env, irg); /* Compute some analyses and prepare the graph for backend use. */ prepare_graph(&session); + transform_firm(irg); + +#ifdef DUMP_TRANSFORM + dump_ir_block_graph(irg, "-transformed"); +#endif + + +#if 0 +#ifdef DUMP_PREPARED + dump_dominator_information(true); + dump_ir_block_graph(irg, "-prepared"); + dump_dominator_information(false); +#endif + /* Schedule the graphs. */ list_sched(irg, trivial_selector); + be_sched_imm(irg); + +#ifdef DUMP_SCHED + dump_ir_block_graph_sched(irg, "-sched"); +#endif /* Verify the schedule */ sched_verify_irg(irg); - /* Remove all cases where a phi and one of its arguments interfere */ - be_eliminate_phi_interferences(&session); - dump_ir_block_graph(session.irg, "-prephase"); - - be_numbering(irg); - - /* Liveness analysis */ + /* Build liveness information */ be_liveness(irg); - dump_ir_block_graph_sched(irg, "-sched"); - copystat_reset(); - copystat_collect_irg(irg, env.arch_env); - /* Perform the following for each register class. */ for(j = 0, m = isa->get_n_reg_class(); j < m; ++j) { be_chordal_env_t *chordal_env; const arch_register_class_t *cls = isa->get_reg_class(j); + DBG((env.dbg, LEVEL_1, "----> Reg class: %s\n", cls->name)); - chordal_env = be_ra_chordal(irg, env.arch_env, cls); + /* spilling */ + //be_spill_ilp(&session, cls); + be_spill_belady(&session, cls); +#ifdef DUMP_SPILL + dump_ir_block_graph_sched(session.irg, "-spill"); +#endif + be_liveness(irg); + be_numbering(irg); + be_check_pressure(&session, cls); + +#if 0 + { + FILE *f; + char buf[128]; + ir_snprintf(buf, sizeof(buf), "%F_%s-live.txt", irg, cls->name); + if((f = fopen(buf, "wt")) != NULL) { + be_liveness_dump(session.irg, f); + fclose(f); + } + } +#endif + /* allocation */ + chordal_env = be_ra_chordal(&session, cls); #ifdef DUMP_ALLOCATED dump_allocated_irg(env.arch_env, irg, ""); #endif - copystat_collect_cls(chordal_env); + /* copy minimization */ + copystat_collect_cls(chordal_env); be_copy_opt(chordal_env); +#ifdef DUMP_COPYMIN + dump_allocated_irg(env.arch_env, irg, "-copymin"); +#endif - be_ssa_destruction(&session, chordal_env); - be_ssa_destruction_check(&session, chordal_env); + /* ssa destruction */ + be_ssa_destruction(chordal_env); + be_ssa_destruction_check(chordal_env); be_ra_chordal_check(chordal_env); +#ifdef DUMP_SSADESTR + dump_allocated_irg(env.arch_env, irg, "-ssadestr"); +#endif be_ra_chordal_done(chordal_env); + be_numbering_done(irg); } - copystat_dump_pretty(irg); - be_numbering_done(irg); +#ifdef DUMP_END + dump_ir_block_graph_sched(session.irg, "-end"); +#endif + copystat_dump(irg); +#endif /* if 0 */ } } void be_main(int argc, const char *argv[]) { - assembler_t *gnu_assembler; - FILE *asm_output_file; + FILE *asm_output_file; - be_main_loop(); - gnu_assembler = gnuasm_create_assembler(); - asm_output_file = fopen("asm_output.asm", "w"); + be_main_loop(); - asm_dump_globals(gnu_assembler); - gnuasm_dump(gnu_assembler, asm_output_file); - gnuasm_delete_assembler(gnu_assembler); - fclose(asm_output_file); + asm_output_file = fopen(argv[0], "w"); + firmbe_gen_code(asm_output_file); + fclose(asm_output_file); }