/**
- * @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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
-#include "phiclass_t.h"
+#include <libcore/lc_timing.h>
+
+#include "xmalloc.h"
+#include "irgraph.h"
+#include "irgwalk.h"
#include "irprog.h"
-#include "becopyopt.h"
+#include "iredges_t.h"
+#include "phiclass_t.h"
+#include "bechordal_t.h"
+#include "beutil.h"
+#include "becopyopt_t.h"
#include "becopystat.h"
-#include "xmalloc.h"
-#ifdef DO_STAT
+#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
+};
+
+/**
+ * Holds current values. Values are added till next copystat_reset
+ */
+int curr_vals[ASIZE];
static pset *all_phi_nodes;
static pset *all_phi_classes;
static pset *all_copy_nodes;
+static ir_graph *last_irg;
-void stat_init(void) {
- all_phi_nodes = pset_new_ptr_default();
+void copystat_init(void) {
+ FIRM_DBG_REGISTER(dbg, "firm.be.copystat");
+
+ all_phi_nodes = pset_new_ptr_default();
all_phi_classes = pset_new_ptr_default();
- all_copy_nodes = pset_new_ptr_default();
- phi_class_init();
+ all_copy_nodes = pset_new_ptr_default();
}
-void stat_reset(void) {
+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 stat_walker(ir_node *node, void *env) {
+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_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_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);
- if (is_Copy(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 successors */
+ 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(ir_node *phi) {
+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]++;
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;
continue;
}
- curr_vals[I_COPIES_MAX]++; /* if arg!=phi this is a possible copy */
-
- if (values_interfere(phi, arg))
- curr_vals[I_COPIES_IF]++;
-
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);
- block_ith_pred = get_nodes_block(get_irn_n(get_nodes_block(phi), i));
if (block_of_arg == block_ith_pred) {
curr_vals[I_PHI_ARG_PRED]++;
continue;
/**
* Collect register-constrained node data
*/
-//TODO stat_copy_node
-static void stat_copy_node(ir_node *root) {
+static void stat_copy_node(be_chordal_env_t *chordal_env, ir_node *root) {
curr_vals[I_CPY_CNT]++;
-// if (values_interfere(root, arg))
-// curr_vals[I_COPIES_IF]++;
+ 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(pset *pc) {
- int i, o, size, if_free;
+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 */
/* get an array of all members for double iterating */
members = xmalloc(size * sizeof(*members));
- for (i = 0, p = pset_first(pc); p; p = pset_next(pc))
+ 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 (values_interfere(members[i], members[o])) {
+ if (nodes_interfere(chordal_env, members[i], members[o])) {
if_free = 0;
curr_vals[I_CLS_IF_CNT]++;
}
xfree(members);
}
-void stat_collect_irg(ir_graph *irg) {
+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;
- irg_walk_graph(irg, stat_walker, NULL, NULL);
- curr_vals[I_BLOCKS] -= 2; /* substract 2 for start and end block */
-
- all_phi_classes = phi_class_compute_by_phis(all_phi_nodes);
+ copystat_reset();
+ copystat_collect_irg(irg, aenv);
for (n = pset_first(all_phi_nodes); n; n = pset_next(all_phi_nodes))
- stat_phi_node(n);
+ 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))
- stat_copy_node(n);
+ 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);
+ }
+}
- for (pc = pset_first(all_phi_classes); pc; pc = pset_next(all_phi_classes))
- stat_phi_class(pc);
+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;
+}
+
+#ifdef WITH_ILP
+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;
+}
+
+#endif /* WITH_ILP */
-void stat_dump(ir_graph *irg) {
+void copystat_dump(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)));
- FILE *out = ffopen(buf, "stat", "wt");
+ buf[sizeof(buf) - 1] = '\0';
+ out = ffopen(buf, "stat", "wt");
- fprintf(out, "%s\n", get_irp_prog_name());
+ 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]);
}
- fclose(out);
+ fclose(out);
}
-//TODO stat_dump_pretty
-void stat_dump_pretty(ir_graph *irg) {
+void copystat_dump_pretty(ir_graph *irg) {
int i;
- FILE *out = ffopen(get_entity_name(get_irg_entity(irg)), "pretty", "wt");
-
- fprintf(out, "\nPhi argument types\n");
- fprintf(out, "Total %4d\n", curr_vals[I_PHI_ARG_CNT]);
- 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, "\nPhi class interference\n");
- fprintf(out, "Blocks %4d\n", curr_vals[I_BLOCKS]);
- fprintf(out, "Phis %4d\n", curr_vals[I_PHI_CNT]);
+ char buf[1024];
+ FILE *out;
- fprintf(out, "\nPhi arity\n");
+ snprintf(buf, sizeof(buf), "%s__%s", get_irp_prog_name(), get_entity_name(get_irg_entity(irg)));
+ buf[sizeof(buf) - 1] = '\0';
+ 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, " %2i %4d\n", i-I_PHI_ARITY_S, curr_vals[i]);
- fprintf(out, "\nPhi class sizes\n");
+ 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, "\n\nTotal nodes: %4d\n", curr_vals[I_ALL_NODES]);
+ 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);
}
-#endif
+/**
+ * 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_solved, 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));
+
+ /* heuristic 1 (Daniel Grund) */
+ timer = lc_timer_register("heur1", NULL);
+ lc_timer_reset_and_start(timer);
+
+ co_solve_heuristic(co);
+
+ lc_timer_stop(timer);
+
+ be_ra_chordal_check(co->cenv);
+ costs_solved = co_get_copy_costs(co);
+ DBG((dbg, LEVEL_1, "HEUR1 costs: %3d\n", costs_solved));
+ copystat_add_heur_time(lc_timer_elapsed_msec(timer));
+ copystat_add_heur_costs(costs_solved);
+ assert(lower_bound <= costs_solved);
+
+ /* heuristic 2 (Sebastian Hack) */
+ timer = lc_timer_register("heur2", NULL);
+ lc_timer_reset_and_start(timer);
+
+ co_solve_heuristic_new(co);
+
+ lc_timer_stop(timer);
+
+ be_ra_chordal_check(co->cenv);
+ costs_solved = co_get_copy_costs(co);
+ DBG((dbg, LEVEL_1, "HEUR2 costs: %3d\n", costs_solved));
+ copystat_add_heur_time(lc_timer_elapsed_msec(timer));
+ copystat_add_heur_costs(costs_solved);
+ assert(lower_bound <= costs_solved);
+
+ /* Park & Moon register coalescing (Kimon Hoffmann) */
+ timer = lc_timer_register("park", NULL);
+ lc_timer_reset_and_start(timer);
+
+ co_solve_park_moon(co);
+
+ lc_timer_stop(timer);
+
+ be_ra_chordal_check(co->cenv);
+ costs_solved = co_get_copy_costs(co);
+ DBG((dbg, LEVEL_1, "Park/Moon costs: %3d\n", costs_solved));
+ copystat_add_heur_time(lc_timer_elapsed_msec(timer));
+ copystat_add_heur_costs(costs_solved);
+ assert(lower_bound <= costs_solved);
+
+
+#ifdef WITH_ILP
+
+ /* ILP 1 is not yet implemented, so it makes no sense to compare */
+#if 0
+ load_colors(&saver);
+
+ co_solve_ilp1(co, 60.0);
+
+ costs_solved = co_get_copy_costs(co);
+ DBG((dbg, LEVEL_1, "ILP1 costs: %3d\n", costs_solved));
+ copystat_add_opt_costs(costs_solved); /* TODO: ADAPT */
+ assert(lower_bound <= costs_solved);
+#endif /* 0 */
+
+ /* ILP 2 */
+ load_colors(&saver);
+
+ co_solve_ilp2(co);
+
+ be_ra_chordal_check(co->cenv);
+ costs_solved = co_get_copy_costs(co);
+ DBG((dbg, LEVEL_1, "ILP2 costs: %3d\n", costs_solved));
+ copystat_add_opt_costs(costs_solved); /* TODO: ADAPT */
+ assert(lower_bound <= costs_solved);
+
+#endif /* WITH_ILP */
+
+ /* free memory for statistic structures */
+ pmap_destroy(saver.saved_colors);
+ co_free_graph_structure(co);
+ co_free_ou_structure(co);
+ free_copy_opt(co);
+}
projects / libfirm / blobdiff