X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=ir%2Fbe%2Fbecopystat.c;h=15d1a255c408b77412ca1f59c08cd08165159db9;hb=1161999117f5c0f56b3af2dc9bb7150e03761905;hp=77211647967e64b7019241b293bf6d7fbf4dec96;hpb=ad8d083988ca94d6d0370f172533112f592f62df;p=libfirm diff --git a/ir/be/becopystat.c b/ir/be/becopystat.c index 772116479..15d1a255c 100644 --- a/ir/be/becopystat.c +++ b/ir/be/becopystat.c @@ -1,109 +1,537 @@ /** - * @author Daniel Grund - * @date 19.04.2005 + * Author: Daniel Grund + * Date: 19.04.2005 + * Copyright: (c) Universitaet Karlsruhe + * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE. */ -#include -#include "list.h" +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include +#include + +#include "xmalloc.h" +#include "irgraph.h" +#include "irgwalk.h" #include "irprog.h" +#include "iredges_t.h" +#include "phiclass_t.h" +#include "bechordal_t.h" #include "beutil.h" +#include "becopyopt_t.h" #include "becopystat.h" -struct _irg_stat_t { - struct list_head chain; - ir_graph *irg; - const char *irg_name; - int interferers, lb, max; - int copies[3]; - //TODO double ilp_time; +#ifdef COPYOPT_STAT + +#define DO_HEUR +#undef DO_ILP1 +#define DO_ILP2 + +#define DEBUG_LVL SET_LEVEL_1 +DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;) + +#define MAX_ARITY 20 +#define MAX_CLS_SIZE 20 +#define MAX_CLS_PHIS 20 + +/** + * For an explanation of these values see the code of copystat_dump_pretty + */ +enum vals_t { + /* FROM HERE: PROBLEM CHARACTERIZATION */ + + I_ALL_NODES = 0, + I_BLOCKS, + + /* phi nodes */ + I_PHI_CNT, /* number of phi nodes */ + I_PHI_ARG_CNT, /* number of arguments of phis */ + I_PHI_ARG_SELF, /* number of arguments of phis being the phi itself */ + I_PHI_ARG_CONST, /* number of arguments of phis being consts */ + I_PHI_ARG_PRED, /* ... being defined in a cf-pred */ + I_PHI_ARG_GLOB, /* ... being defined elsewhere */ + I_PHI_ARITY_S, + I_PHI_ARITY_E = I_PHI_ARITY_S+MAX_ARITY, + + /* copy nodes */ + I_CPY_CNT, /* number of copynodes */ + + /* phi classes */ + I_CLS_CNT, /* number of phi classes */ + I_CLS_IF_FREE, /* number of pc having no interference */ + I_CLS_IF_MAX, /* number of possible interferences in all classes */ + I_CLS_IF_CNT, /* number of actual interferences in all classes */ + I_CLS_SIZE_S, + I_CLS_SIZE_E = I_CLS_SIZE_S+MAX_CLS_SIZE, + I_CLS_PHIS_S, + I_CLS_PHIS_E = I_CLS_PHIS_S+MAX_CLS_PHIS, + + /* FROM HERE: RESULT VLAUES */ + /* all of them are external set */ + + /* ilp values */ + I_HEUR_TIME, /* solving time in milli seconds */ + I_ILP_TIME, /* solving time in milli seconds */ + I_ILP_VARS, + I_ILP_CSTR, + I_ILP_ITER, /* number of simplex iterations */ + + /* copy instructions */ + I_COPIES_MAX, /* max possible costs of copies*/ + I_COPIES_INIT, /* number of copies in initial allocation */ + I_COPIES_HEUR, /* number of copies after heuristic */ + I_COPIES_5SEC, /* number of copies after ilp with max n sec */ + I_COPIES_30SEC, /* number of copies after ilp with max n sec */ + I_COPIES_OPT, /* number of copies after ilp */ + I_COPIES_IF, /* number of copies inevitable due to root-arg-interf */ + + ASIZE }; -typedef struct _all_stat_t { - const char *unit_name; - struct list_head irgs; -} all_stat_t; +/** + * Holds current values. Values are added till next copystat_reset + */ +int curr_vals[ASIZE]; -static all_stat_t *all_stats = NULL; +static pset *all_phi_nodes; +static pset *all_phi_classes; +static pset *all_copy_nodes; +static ir_graph *last_irg; -#define irg_list_entry(lh) list_entry(lh, irg_stat_t, chain) +void copystat_init(void) { + FIRM_DBG_REGISTER(dbg, "firm.be.copystat"); -irg_stat_t *new_irg_stat(copy_opt_t *co) { - irg_stat_t *is, *curr; + all_phi_nodes = pset_new_ptr_default(); + all_phi_classes = pset_new_ptr_default(); + all_copy_nodes = pset_new_ptr_default(); +} - if (!all_stats) { - all_stats = calloc(1, sizeof(*all_stats)); - all_stats->unit_name = get_irp_prog_name(); - INIT_LIST_HEAD(&all_stats->irgs); - is = calloc(1, sizeof(*is)); - is->irg_name = "CUMULATIVE"; - list_add_tail(&is->chain, &all_stats->irgs); - } +void copystat_reset(void) { + int i; + for (i = 0; i < ASIZE; ++i) + curr_vals[i] = 0; + del_pset(all_phi_nodes); + del_pset(all_phi_classes); + del_pset(all_copy_nodes); + all_phi_nodes = pset_new_ptr_default(); + all_phi_classes = pset_new_ptr_default(); + all_copy_nodes = pset_new_ptr_default(); +} + +/** + * Collect general data + */ +static void irg_stat_walker(ir_node *node, void *env) { + arch_env_t *arch_env = env; + curr_vals[I_ALL_NODES]++; /* count all nodes */ + + if (is_Block(node)) /* count all blocks */ + curr_vals[I_BLOCKS]++; + + if (is_Reg_Phi(node)) /* collect phis */ + pset_insert_ptr(all_phi_nodes, node); + + if (is_Perm_Proj(arch_env, node)) + pset_insert_ptr(all_copy_nodes, node); + + /* TODO: Add 2-Addr-Code nodes */ +} + +static void copystat_collect_irg(ir_graph *irg, arch_env_t *arch_env) { + irg_walk_graph(irg, irg_stat_walker, NULL, arch_env); + all_phi_classes = phi_class_compute_by_phis(all_phi_nodes); + last_irg = irg; +} + +/** + * @return 1 if the block at pos @p pos removed a critical edge + * 0 else + */ +static INLINE int was_edge_critical(const ir_node *bl, int pos) { + const ir_edge_t *edge; + const ir_node *bl_at_pos, *bl_before; + assert(is_Block(bl)); + + /* Does bl have several predecessors ?*/ + if (get_irn_arity(bl) <= 1) + return 0; + + /* Does the pred have exactly one predecessor */ + bl_at_pos = get_irn_n(bl, pos); + if (get_irn_arity(bl_at_pos) != 1) + return 0; + + /* Does the pred of the pred have several sucsecessors */ + bl_before = get_irn_n(bl_at_pos, 0); + edge = get_block_succ_first(bl_before); + return get_block_succ_next(bl_before, edge) ? 1 : 0; +} + +/** + * Collect phi node data + */ +static void stat_phi_node(be_chordal_env_t *chordal_env, ir_node *phi) { + int arity, i; + ir_node *phi_bl; + assert(is_Phi(phi)); + + /* count all phi phis */ + curr_vals[I_PHI_CNT]++; - /* look if we had this irg already */ - list_for_each_entry(irg_stat_t, curr, &all_stats->irgs, chain) - if (curr->irg == co->irg) - return curr; - - /* else create a new entry */ - is = calloc(1, sizeof(*is)); - is->irg = co->irg; - is->irg_name = get_entity_name(get_irg_entity(co->irg)); - list_add_tail(&is->chain, &all_stats->irgs); - return is; -} - -void irg_stat_count(irg_stat_t *is, copy_opt_t *co, int phase) { - unit_t *curr; - int max = 0, copies = 0; - - list_for_each_entry(unit_t, curr, &co->units, units) { - int i; - max += curr->interf + curr->node_count - 1; - const ir_node *root = curr->nodes[0]; - int root_color = get_irn_color(root); - copies += curr->interf; - for (i=1; inode_count; ++i) { - const ir_node *arg = curr->nodes[i]; - if (root_color != get_irn_color(arg)) - copies++; + /* argument count */ + arity = get_irn_arity(phi); + curr_vals[I_PHI_ARG_CNT] += arity; + if (arity > MAX_ARITY) + curr_vals[I_PHI_ARITY_E]++; + else + curr_vals[I_PHI_ARITY_S + arity]++; + + phi_bl = get_nodes_block(phi); + /* type of argument {self, const, pred, glob} */ + for (i = 0; i < arity; i++) { + ir_node *block_of_arg, *block_ith_pred; + ir_node *arg = get_irn_n(phi, i); + + if (arg == phi) { + curr_vals[I_PHI_ARG_SELF]++; + continue; + } + + if (iro_Const == get_irn_opcode(arg)) { + curr_vals[I_PHI_ARG_CONST]++; + continue; } + + /* get the pred block skipping blocks on critical edges */ + block_ith_pred = get_Block_cfgpred_block(phi_bl, i); + if (was_edge_critical(phi_bl, i)) + block_ith_pred = get_Block_cfgpred_block(block_ith_pred, 0); + + block_of_arg = get_nodes_block(arg); + if (block_of_arg == block_ith_pred) { + curr_vals[I_PHI_ARG_PRED]++; + continue; + } + + curr_vals[I_PHI_ARG_GLOB]++; } +} + +/** + * Collect register-constrained node data + */ +static void stat_copy_node(be_chordal_env_t *chordal_env, ir_node *root) { + curr_vals[I_CPY_CNT]++; + curr_vals[I_COPIES_MAX]++; + if (nodes_interfere(chordal_env, root, get_Perm_src(root))) { + curr_vals[I_COPIES_IF]++; + assert(0 && "A Perm pair (in/out) should never interfere!"); + } +} + +/** + * Collect phi class data + */ +static void stat_phi_class(be_chordal_env_t *chordal_env, pset *pc) { + int i, o, size, if_free, phis; + ir_node **members, *p; + + /* phi class count */ + curr_vals[I_CLS_CNT]++; + + /* phi class size */ + size = pset_count(pc); + if (size > MAX_CLS_SIZE) + curr_vals[I_CLS_SIZE_E]++; + else + curr_vals[I_CLS_SIZE_S + size]++; + + /* get an array of all members for double iterating */ + members = xmalloc(size * sizeof(*members)); + DBG((dbg, LEVEL_2, "Phi-class:\n")); + for (i = 0, p = pset_first(pc); p; p = pset_next(pc)) { + DBG((dbg, LEVEL_2, " %+F\n", p)); + members[i++] = p; + } + assert(i == size); + + /* determine number of phis on this class */ + phis = 0; + for (i = 0; i < size; ++i) + if (is_Phi(members[i])) + phis++; + if (phis > MAX_CLS_PHIS) + curr_vals[I_CLS_PHIS_E]++; + else + curr_vals[I_CLS_PHIS_S + phis]++; + + /* determine interference of phi class members */ + curr_vals[I_CLS_IF_MAX] += size*(size-1)/2; + if_free = 1; + for (i = 0; i < size-1; ++i) + for (o = i+1; o < size; ++o) + if (nodes_interfere(chordal_env, members[i], members[o])) { + if_free = 0; + curr_vals[I_CLS_IF_CNT]++; + } + + /* Does this phi class have an inner interference? */ + curr_vals[I_CLS_IF_FREE] += if_free; - is->copies[phase] += copies; - if (phase == 0) - is->max += max; - if (phase == 1) { - is->interferers += co_get_interferer_count(co); - is->lb += co_get_lower_bound(co); + xfree(members); +} + +void copystat_collect_cls(be_chordal_env_t *cenv) { + ir_node *n; + pset *pc; + ir_graph *irg = cenv->irg; + arch_env_t *aenv = cenv->birg->main_env->arch_env; + + copystat_reset(); + copystat_collect_irg(irg, aenv); + + for (n = pset_first(all_phi_nodes); n; n = pset_next(all_phi_nodes)) + if (arch_get_irn_reg_class(aenv, n, -1) == cenv->cls) + stat_phi_node(cenv, n); + + for (n = pset_first(all_copy_nodes); n; n = pset_next(all_copy_nodes)) + if (arch_get_irn_reg_class(aenv, n, -1) == cenv->cls) + stat_copy_node(cenv, n); + + for (pc = pset_first(all_phi_classes); pc; pc = pset_next(all_phi_classes)) { + ir_node *member = pset_first(pc); + pset_break(pc); + if (arch_get_irn_reg_class(aenv, member, -1) == cenv->cls) + stat_phi_class(cenv, pc); } } -void irg_stat_print(irg_stat_t *is) { - printf("Irg %s: %3d %3d %3d %3d %3d %3d", is->irg_name, is->interferers, is->lb, is->copies[0], is->copies[1], is->copies[2], is->max); +void copystat_add_max_costs(int costs) { + curr_vals[I_COPIES_MAX] += costs; +} +void copystat_add_inevit_costs(int costs) { + curr_vals[I_COPIES_IF] += costs; +} +void copystat_add_init_costs(int costs) { + curr_vals[I_COPIES_INIT] += costs; +} +void copystat_add_heur_costs(int costs) { + curr_vals[I_COPIES_HEUR] += costs; +} +void copystat_add_ilp_5_sec_costs(int costs) { + curr_vals[I_COPIES_5SEC] += costs; +} +void copystat_add_ilp_30_sec_costs(int costs) { + curr_vals[I_COPIES_30SEC] += costs; +} +void copystat_add_opt_costs(int costs) { + curr_vals[I_COPIES_OPT] += costs; +} +void copystat_add_heur_time(int time) { + curr_vals[I_HEUR_TIME] += time; +} +void copystat_add_ilp_time(int time) { + curr_vals[I_ILP_TIME] += time; +} +void copystat_add_ilp_vars(int vars) { + curr_vals[I_ILP_VARS] += vars; +} +void copystat_add_ilp_csts(int csts) { + curr_vals[I_ILP_CSTR] += csts; +} +void copystat_add_ilp_iter(int iters) { + curr_vals[I_ILP_ITER] += iters; } -void all_stat_dump(void) { +void copystat_dump(ir_graph *irg) { + int i; + char buf[1024]; FILE *out; - irg_stat_t *cuml, *curr; - /* Compute cumulative values */ - cuml = irg_list_entry(all_stats->irgs.next); - cuml->interferers = 0; - cuml->lb = 0; - cuml->max = 0; - cuml->copies[0] = 0; - cuml->copies[1] = 0; - cuml->copies[2] = 0; - list_for_each_entry(irg_stat_t, curr, &all_stats->irgs, chain) { - int i = 0; - cuml->interferers += curr->interferers; - cuml->lb += curr->lb; - cuml->max += curr->max; - for (i=0; i<3; ++i) - cuml->copies[i] += curr->copies[i]; + + snprintf(buf, sizeof(buf), "%s__%s", get_irp_prog_name(), get_entity_name(get_irg_entity(irg))); + out = ffopen(buf, "stat", "wt"); + + fprintf(out, "%d\n", ASIZE); + for (i = 0; i < ASIZE; i++) { +#if 0 + if (i >= I_PHI_ARITY_S && i <= I_PHI_ARITY_E) + fprintf(out, "%i %i\n", curr_vals[i], curr_vals[I_PHI_CNT]); + else if (i >= I_CLS_SIZE_S && i <= I_CLS_SIZE_E) + fprintf(out, "%i %i\n", curr_vals[i], curr_vals[I_CLS_CNT]); + else +#endif + fprintf(out, "%i\n", curr_vals[i]); } - /* dump to file */ - out = ffopen(all_stats->unit_name, "stats", "wt"); - list_for_each_entry(irg_stat_t, curr, &all_stats->irgs, chain) - fprintf(out, "%15s %3d %3d %3d %3d %3d %3d", curr->irg_name, curr->interferers, curr->lb, curr->copies[0], curr->copies[1], curr->copies[2], curr->max); + fclose(out); +} + +void copystat_dump_pretty(ir_graph *irg) { + int i; + char buf[1024]; + FILE *out; + + snprintf(buf, sizeof(buf), "%s__%s", get_irp_prog_name(), get_entity_name(get_irg_entity(irg))); + out = ffopen(buf, "pstat", "wt"); + + fprintf(out, "Nodes %4d\n", curr_vals[I_ALL_NODES]); + fprintf(out, "Blocks %4d\n", curr_vals[I_BLOCKS]); + fprintf(out, "CopyIrn %4d\n", curr_vals[I_CPY_CNT]); + + fprintf(out, "\nPhis %4d\n", curr_vals[I_PHI_CNT]); + fprintf(out, "... argument types\n"); + fprintf(out, " Total %4d\n", curr_vals[I_PHI_ARG_CNT]); + fprintf(out, " Self %4d\n", curr_vals[I_PHI_ARG_SELF]); + fprintf(out, " Constants %4d\n", curr_vals[I_PHI_ARG_CONST]); + fprintf(out, " CF-Pred %4d\n", curr_vals[I_PHI_ARG_PRED]); + fprintf(out, " Others %4d\n", curr_vals[I_PHI_ARG_GLOB]); + fprintf(out, "... arities\n"); + for (i = I_PHI_ARITY_S; i<=I_PHI_ARITY_E; i++) + fprintf(out, " %2i %4d\n", i-I_PHI_ARITY_S, curr_vals[i]); + + fprintf(out, "\nPhi classes %4d\n", curr_vals[I_CLS_CNT]); + fprintf(out, " compl. free %4d\n", curr_vals[I_CLS_IF_FREE]); + fprintf(out, " inner intf. %4d / %4d\n", curr_vals[I_CLS_IF_CNT], curr_vals[I_CLS_IF_MAX]); + fprintf(out, "... sizes\n"); + for (i = I_CLS_SIZE_S; i<=I_CLS_SIZE_E; i++) + fprintf(out, " %2i %4d\n", i-I_CLS_SIZE_S, curr_vals[i]); + fprintf(out, "... contained phis\n"); + for (i = I_CLS_PHIS_S; i<=I_CLS_PHIS_E; i++) + fprintf(out, " %2i %4d\n", i-I_CLS_PHIS_S, curr_vals[i]); + + fprintf(out, "\nILP stat\n"); + fprintf(out, " Time %8d\n", curr_vals[I_ILP_TIME]); + fprintf(out, " Iter %8d\n", curr_vals[I_ILP_ITER]); + + fprintf(out, "\nCopy stat\n"); + fprintf(out, " Max %4d\n", curr_vals[I_COPIES_MAX]); + fprintf(out, " Init %4d\n", curr_vals[I_COPIES_INIT]); + fprintf(out, " Heur %4d\n", curr_vals[I_COPIES_HEUR]); + fprintf(out, " Opt %4d\n", curr_vals[I_COPIES_OPT]); + fprintf(out, " Intf %4d\n", curr_vals[I_COPIES_IF]); + fclose(out); } + +/** + * Helpers for saving and restoring colors of nodes. + * Used to get dependable and comparable benchmark results. + */ +typedef struct color_saver { + arch_env_t *arch_env; + be_chordal_env_t *chordal_env; + pmap *saved_colors; + int flag; /* 0 save, 1 load */ +} color_save_t; + +static void save_load(ir_node *irn, void *env) { + color_save_t *saver = env; + if (saver->chordal_env->cls == arch_get_irn_reg_class(saver->arch_env, irn, -1)) { + if (saver->flag == 0) { /* save */ + const arch_register_t *reg = arch_get_irn_register(saver->arch_env, irn); + pmap_insert(saver->saved_colors, irn, (void *) reg); + } else { /*load */ + arch_register_t *reg = pmap_get(saver->saved_colors, irn); + arch_set_irn_register(saver->arch_env, irn, reg); + } + } +} + +static void save_colors(color_save_t *color_saver) { + color_saver->flag = 0; + irg_walk_graph(color_saver->chordal_env->irg, save_load, NULL, color_saver); +} + +static void load_colors(color_save_t *color_saver) { + color_saver->flag = 1; + irg_walk_graph(color_saver->chordal_env->irg, save_load, NULL, color_saver); +} + +/** + * Main compare routine + */ +void co_compare_solvers(be_chordal_env_t *chordal_env) { + copy_opt_t *co; + lc_timer_t *timer; + color_save_t saver; + int costs_inevit, costs_init, costs_heur, costs_ilp1, costs_ilp2, lower_bound; + + phi_class_compute(chordal_env->irg); + copystat_collect_cls(chordal_env); + + co = new_copy_opt(chordal_env, co_get_costs_loop_depth); + co_build_ou_structure(co); + co_build_graph_structure(co); + DBG((dbg, LEVEL_1, "----> CO: %s\n", co->name)); + + /* save colors */ + saver.arch_env = chordal_env->birg->main_env->arch_env; + saver.chordal_env = chordal_env; + saver.saved_colors = pmap_create(); + save_colors(&saver); + be_ra_chordal_check(co->cenv); + + /* initial values */ + costs_inevit = co_get_inevit_copy_costs(co); + lower_bound = co_get_lower_bound(co); + costs_init = co_get_copy_costs(co); + + DBG((dbg, LEVEL_1, "Inevit Costs: %3d\n", costs_inevit)); + DBG((dbg, LEVEL_1, "Lower Bound: %3d\n", lower_bound)); + DBG((dbg, LEVEL_1, "Init costs: %3d\n", costs_init)); + + copystat_add_inevit_costs(costs_inevit); + copystat_add_init_costs(costs_init); + copystat_add_max_costs(co_get_max_copy_costs(co)); + + +#ifdef DO_HEUR + timer = lc_timer_register("heur", NULL); + lc_timer_reset_and_start(timer); + + co_solve_heuristic(co); + + lc_timer_stop(timer); + + be_ra_chordal_check(co->cenv); + costs_heur = co_get_copy_costs(co); + DBG((dbg, LEVEL_1, "HEUR costs: %3d\n", costs_heur)); + copystat_add_heur_time(lc_timer_elapsed_msec(timer)); + copystat_add_heur_costs(costs_heur); + assert(lower_bound <= costs_heur); +#endif /* DO_HEUR */ + + +#ifdef DO_ILP1 + load_colors(&saver); + + co_solve_ilp1(co, 60.0); + + costs_ilp1 = co_get_copy_costs(co); + DBG((dbg, LEVEL_1, "ILP1 costs: %3d\n", costs_ilp1)); + copystat_add_opt_costs(costs_ilp1); /*TODO ADAPT */ + assert(lower_bound <= costs_ilp1); +#endif /* DO_ILP1 */ + + +#ifdef DO_ILP2 + load_colors(&saver); + + co_solve_ilp2(co, 60.0); + + be_ra_chordal_check(co->cenv); + costs_ilp2 = co_get_copy_costs(co); + DBG((dbg, LEVEL_1, "ILP2 costs: %3d\n", costs_ilp2)); + copystat_add_opt_costs(costs_ilp2); /*TODO ADAPT */ + assert(lower_bound <= costs_ilp2); +#endif /* DO_ILP2 */ + + pmap_destroy(saver.saved_colors); + co_free_graph_structure(co); + co_free_ou_structure(co); + free_copy_opt(co); +} + + +#endif /* COPYOPT_STAT */