-/**
- * Author: Daniel Grund
- * Date: 28.02.2006
- * Copyright: (c) Universitaet Karlsruhe
- * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
+/*
+ * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
+ *
+ * This file is part of libFirm.
+ *
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
*
- * Common stuff used by all ILP fomulations.
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
*
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
+ */
+
+/**
+ * @file
+ * @brief Common stuff used by all ILP formulations.
+ * @author Daniel Grund
+ * @date 28.02.2006
*/
+#include "config.h"
+
+#include <stdbool.h>
+
+#include "be_t.h"
+#include "irtools.h"
+#include "irprintf.h"
+
+#include "statev_t.h"
+#include "bemodule.h"
+#include "error.h"
+
+#include "lpp.h"
+
+#include "lc_opts.h"
+#include "lc_opts_enum.h"
+
+#define DUMP_ILP 1
+#define DUMP_SOL 2
+
+static int time_limit = 60;
+static int solve_log = 0;
+static unsigned dump_flags = 0;
+
+static const lc_opt_enum_mask_items_t dump_items[] = {
+ { "ilp", DUMP_ILP },
+ { "sol", DUMP_SOL },
+ { NULL, 0 }
+};
+
+static lc_opt_enum_mask_var_t dump_var = {
+ &dump_flags, dump_items
+};
+
+static const lc_opt_table_entry_t options[] = {
+ LC_OPT_ENT_INT ("limit", "time limit for solving in seconds (0 for unlimited)", &time_limit),
+ LC_OPT_ENT_BOOL ("log", "show ilp solving log", &solve_log),
+ LC_OPT_ENT_ENUM_MASK("dump", "dump flags", &dump_var),
+ LC_OPT_LAST
+};
+
+BE_REGISTER_MODULE_CONSTRUCTOR(be_init_copyilp)
+void be_init_copyilp(void)
+{
+ lc_opt_entry_t *be_grp = lc_opt_get_grp(firm_opt_get_root(), "be");
+ lc_opt_entry_t *ra_grp = lc_opt_get_grp(be_grp, "ra");
+ lc_opt_entry_t *chordal_grp = lc_opt_get_grp(ra_grp, "chordal");
+ lc_opt_entry_t *co_grp = lc_opt_get_grp(chordal_grp, "co");
+ lc_opt_entry_t *ilp_grp = lc_opt_get_grp(co_grp, "ilp");
+
+ lc_opt_add_table(ilp_grp, options);
+}
#include "becopyilp_t.h"
-#include "beifg_t.h"
+#include "beifg.h"
/******************************************************************************
_____ _ _ _ _
*****************************************************************************/
+
+size_red_t *new_size_red(copy_opt_t *co)
+{
+ size_red_t *res = XMALLOC(size_red_t);
+
+ res->co = co;
+ res->all_removed = pset_new_ptr_default();
+ res->col_suff = NULL;
+ obstack_init(&res->ob);
+
+ return res;
+}
+
/**
* Checks if a node is simplicial in the graph heeding the already removed nodes.
*/
-static INLINE int sr_is_simplicial(size_red_t *sr, const ir_node *ifn) {
- int i, o, size = 0;
- ir_node **all, *curr;
- be_ifg_t *ifg = sr->co->cenv->ifg;
- void *iter = be_ifg_neighbours_iter_alloca(ifg);
-
- all = alloca(be_ifg_degree(ifg, ifn) * sizeof(*all));
+static inline bool sr_is_simplicial(size_red_t *sr, const ir_node *ifn)
+{
+ be_ifg_t *ifg = sr->co->cenv->ifg;
+ neighbours_iter_t iter;
+ ir_node **all = ALLOCAN(ir_node*, be_ifg_degree(ifg, ifn));
+ ir_node *curr;
+ int size = 0;
+ int i;
+ int o;
/* get all non-removed neighbors */
- be_ifg_foreach_neighbour(ifg, iter, ifn, curr)
+ be_ifg_foreach_neighbour(ifg, &iter, ifn, curr)
if (!sr_is_removed(sr, curr))
all[size++] = curr;
for (i=0; i<size; ++i)
for (o=i+1; o<size; ++o)
if (!be_ifg_connected(ifg, all[i], all[o]))
- return 0;
+ return false;
/* all edges exist so this is a clique */
- return 1;
+ return true;
}
-void sr_remove(size_red_t *sr) {
+void sr_remove(size_red_t *sr)
+{
ir_node *irn;
- int redo = 1;
- int n_nodes = 0;
+ bool redo = true;
const be_ifg_t *ifg = sr->co->cenv->ifg;
- void *iter = be_ifg_neighbours_iter_alloca(ifg);
+ nodes_iter_t iter;
while (redo) {
- arch_register_req_t req;
- redo = 0;
- be_ifg_foreach_node(ifg, iter, irn) {
- if (!sr_is_removed(sr, irn) && !co_is_optimizable(sr->co->aenv, irn, &req) && !co_is_optimizable_arg(sr->co, irn)) {
- if (sr_is_simplicial(sr, irn)) {
- coloring_suffix_t *cs = obstack_alloc(&sr->ob, sizeof(*cs));
-
- cs->irn = irn;
- cs->next = sr->col_suff;
- sr->col_suff = cs;
-
- pset_insert_ptr(sr->all_removed, irn);
-
- redo = 1;
- }
- }
+ redo = false;
+ be_ifg_foreach_node(ifg, &iter, irn) {
+ const arch_register_req_t *req = arch_get_irn_register_req(irn);
+ coloring_suffix_t *cs;
+
+ if (arch_register_req_is(req, limited) || sr_is_removed(sr, irn))
+ continue;
+ if (co_gs_is_optimizable(sr->co, irn))
+ continue;
+ if (!sr_is_simplicial(sr, irn))
+ continue;
+
+ cs = OALLOC(&sr->ob, coloring_suffix_t);
+ cs->irn = irn;
+ cs->next = sr->col_suff;
+ sr->col_suff = cs;
+
+ pset_insert_ptr(sr->all_removed, irn);
+
+ redo = true;
}
}
}
-void sr_reinsert(size_red_t *sr) {
+void sr_reinsert(size_red_t *sr)
+{
coloring_suffix_t *cs;
+ ir_graph *irg = sr->co->irg;
be_ifg_t *ifg = sr->co->cenv->ifg;
- bitset_t *used_cols = bitset_alloca(arch_register_class_n_regs(sr->co->cls));
- void *iter = be_ifg_neighbours_iter_alloca(ifg);
+ unsigned n_regs = arch_register_class_n_regs(sr->co->cls);
+
+ unsigned *const allocatable_cols = rbitset_alloca(n_regs);
+ be_set_allocatable_regs(irg, sr->co->cls, allocatable_cols);
+
+ unsigned *const possible_cols = rbitset_alloca(n_regs);
+ neighbours_iter_t iter;
/* color the removed nodes in right order */
for (cs = sr->col_suff; cs; cs = cs->next) {
- int free_col;
- ir_node *other, *irn;
+ unsigned free_col;
+ ir_node *other;
+ ir_node *irn = cs->irn;
- /* get free color by inspecting all neighbors */
- irn = cs->irn;
- bitset_clear_all(used_cols);
+ rbitset_copy(possible_cols, allocatable_cols, n_regs);
- be_ifg_foreach_neighbour(ifg, iter, irn, other) {
- if (!sr_is_removed(sr, other)) /* only inspect nodes which are in graph right now */
- bitset_set(used_cols, get_irn_col(sr->co, other));
+ /* get free color by inspecting all neighbors */
+ be_ifg_foreach_neighbour(ifg, &iter, irn, other) {
+ const arch_register_req_t *cur_req;
+ unsigned cur_col;
+
+ /* only inspect nodes which are in graph right now */
+ if (sr_is_removed(sr, other))
+ continue;
+
+ cur_req = arch_get_irn_register_req(other);
+ cur_col = get_irn_col(other);
+
+ /* Invalidate all single size register when it is a large one */
+ do {
+ rbitset_clear(possible_cols, cur_col);
+ ++cur_col;
+ } while ((cur_col % cur_req->width) != 0);
}
/* now all bits not set are possible colors */
- free_col = bitset_next_clear(used_cols, 0);
- assert(free_col != -1 && "No free color found. This can not be.");
- set_irn_col(sr->co, irn, free_col);
+ /* take one that matches the alignment constraint */
+ free_col = 0;
+ assert(!rbitset_is_empty(possible_cols, n_regs) && "No free color found. This can not be.");
+ while (true) {
+ free_col = (unsigned)rbitset_next(possible_cols, free_col, true);
+ if (free_col % arch_get_irn_register_req(irn)->width == 0)
+ break;
+ ++free_col;
+ assert(free_col < n_regs);
+ }
+ set_irn_col(sr->co->cls, irn, free_col);
pset_remove_ptr(sr->all_removed, irn); /* irn is back in graph again */
}
}
-void free_size_red(size_red_t *sr) {
+void free_size_red(size_red_t *sr)
+{
+ del_pset(sr->all_removed);
obstack_free(&sr->ob, NULL);
free(sr);
}
*****************************************************************************/
-ilp_env_t *new_ilp_env(copy_opt_t *co, firm_dbg_module_t *dbg, ilp_callback build, ilp_callback apply, void *env) {
- ilp_env_t *res = malloc(sizeof(*res));
- assert(res);
+#include <stdio.h>
- res->co = co;
- res->dbg = dbg;
- res->build = build;
- res->apply = apply;
- res->env = env;
- res->sr = new_size_red(co);
+ilp_env_t *new_ilp_env(copy_opt_t *co, ilp_callback build, ilp_callback apply, void *env)
+{
+ ilp_env_t *res = XMALLOC(ilp_env_t);
+
+ res->co = co;
+ res->build = build;
+ res->apply = apply;
+ res->env = env;
+ res->sr = new_size_red(co);
return res;
}
-lpp_sol_state_t ilp_go(ilp_env_t *ienv, double time_limit) {
+lpp_sol_state_t ilp_go(ilp_env_t *ienv)
+{
+ ir_graph *irg = ienv->co->irg;
+
sr_remove(ienv->sr);
ienv->build(ienv);
+ if (dump_flags & DUMP_ILP) {
+ char buf[128];
+ FILE *f;
+
+ ir_snprintf(buf, sizeof(buf), "%F_%s-co.ilp", irg,
+ ienv->co->cenv->cls->name);
+ f = fopen(buf, "wt");
+ if (f == NULL) {
+ panic("Couldn't open '%s' for writing", buf);
+ }
+ lpp_dump_plain(ienv->lp, f);
+ fclose(f);
+ }
+
lpp_set_time_limit(ienv->lp, time_limit);
+ if (solve_log)
+ lpp_set_log(ienv->lp, stdout);
+
+ lpp_solve(ienv->lp, be_options.ilp_server, be_options.ilp_solver);
-#ifdef LPP_SOLVE_NET
- lpp_solve_net(ienv->lp, LPP_HOST, LPP_SOLVER);
-#else
- lpp_solve_cplex(ienv->lp);
-#endif
+ //stat_ev_dbl("co_ilp_objval", ienv->lp->objval);
+ //stat_ev_dbl("co_ilp_best_bound", ienv->lp->best_bound);
+ stat_ev_int("co_ilp_iter", lpp_get_iter_cnt(ienv->lp));
+ stat_ev_dbl("co_ilp_sol_time", lpp_get_sol_time(ienv->lp));
ienv->apply(ienv);
return lpp_get_sol_state(ienv->lp);
}
-void free_ilp_env(ilp_env_t *ienv) {
+void free_ilp_env(ilp_env_t *ienv)
+{
free_size_red(ienv->sr);
- free_lpp(ienv->lp);
+ lpp_free(ienv->lp);
free(ienv);
}
projects / libfirm / blobdiff