-/**
- * Author: Daniel Grund
- * Date: 28.02.2006
- * Copyright: (c) Universitaet Karlsruhe
- * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
+/*
+ * Copyright (C) 1995-2007 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.
*
+ * 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 ILP based copy minimization.
+ * @author Daniel Grund
+ * @date 28.02.2006
+ * @version $Id$
*
* ILP formalization using G=(V, E, Q):
* - 2 class of variables: coloring vars x_ic and equal color vars y_ij
*
* x_nc, y_ij \in N, w_ij \in R^+
*/
-
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
+#include "firm_config.h"
+
#ifdef WITH_ILP
-#include <bitset.h>
+#include "bitset.h"
+#include "raw_bitset.h"
#include "pdeq.h"
#include "irtools.h"
#include "becopyilp_t.h"
#include "beifg_t.h"
#include "besched_t.h"
+#include "benodesets.h"
#define DEBUG_LVL 1
typedef struct _local_env_t {
double time_limit;
int first_x_var, last_x_var;
+ int n_colors;
+ bitset_t *normal_colors;
pmap *nr_2_irn;
DEBUG_ONLY(firm_dbg_module_t *dbg;)
} local_env_t;
static void build_coloring_cstr(ilp_env_t *ienv) {
- be_ifg_t *ifg = ienv->co->cenv->ifg;
- void *iter = be_ifg_nodes_iter_alloca(ifg);
+ local_env_t *lenv = ienv->env;
+ be_ifg_t *ifg = ienv->co->cenv->ifg;
+ void *iter = be_ifg_nodes_iter_alloca(ifg);
bitset_t *colors;
ir_node *irn;
char buf[16];
be_ifg_foreach_node(ifg, iter, irn)
if (!sr_is_removed(ienv->sr, irn)) {
- int col, cst_idx;
- arch_register_req_t req;
+ bitset_pos_t col;
+ int cst_idx;
+ const arch_register_req_t *req;
int curr_node_color = get_irn_col(ienv->co, irn);
int node_nr = (int)get_irn_node_nr(irn);
local_env_t *lenv = ienv->env;
pmap_insert(lenv->nr_2_irn, INT_TO_PTR(node_nr), irn);
- arch_get_register_req(ienv->co->aenv, &req, irn, -1);
+ req = arch_get_register_req(ienv->co->aenv, irn, -1);
+
+ bitset_clear_all(colors);
/* get assignable colors */
- if (arch_register_req_is(&req, limited))
- req.limited(req.limited_env, colors);
- else {
- arch_register_class_put(req.cls, colors);
- // bitset_andnot(colors, ienv->co->cenv->ignore_colors);
+ if (arch_register_req_is(req, limited)) {
+ rbitset_copy_to_bitset(req->limited, colors);
+ } else {
+ bitset_copy(colors, lenv->normal_colors);
}
/* add the coloring constraint */
bitset_foreach(colors, col) {
int var_idx = lpp_add_var(ienv->lp, name_cdd(buf, 'x', node_nr, col), lpp_binary, 0.0);
- lpp_set_start_value(ienv->lp, var_idx, (col == curr_node_color) ? 1.0 : 0.0);
+ lpp_set_start_value(ienv->lp, var_idx, (col == (unsigned) curr_node_color) ? 1.0 : 0.0);
lpp_set_factor_fast(ienv->lp, cst_idx, var_idx, 1);
lenv->last_x_var = var_idx;
}
static void build_interference_cstr(ilp_env_t *ienv) {
- lpp_t *lpp = ienv->lp;
- be_ifg_t *ifg = ienv->co->cenv->ifg;
- int n_colors = arch_register_class_n_regs(ienv->co->cls);
+ lpp_t *lpp = ienv->lp;
+ local_env_t *lenv = ienv->env;
+ be_ifg_t *ifg = ienv->co->cenv->ifg;
+ int n_colors = lenv->n_colors;
int i, col;
void *iter = be_ifg_cliques_iter_alloca(ifg);
* does not provide this walker, yet.
*/
static void build_affinity_cstr(ilp_env_t *ienv) {
+ local_env_t *lenv = ienv->env;
+ int n_colors = lenv->n_colors;
unit_t *curr;
- int n_colors = arch_register_class_n_regs(ienv->co->cls);
/* for all optimization units */
list_for_each_entry(unit_t, curr, &ienv->co->units, units) {
static int compare_edge_t(const void *k1, const void *k2, size_t size) {
const edge_t *e1 = k1;
const edge_t *e2 = k2;
+ (void) size;
return ! (e1->n1 == e2->n1 && e1->n2 == e2->n2);
}
-#define HASH_EDGE(e) (HASH_PTR((e)->n1) ^ HASH_PTR((e)->n2))
+#define HASH_EDGE(e) (nodeset_hash((e)->n1) ^ nodeset_hash((e)->n2))
static INLINE edge_t *add_edge(set *edges, ir_node *n1, ir_node *n2, int *counter) {
edge_t new_edge;
for (e=set_first(edges); !e->n1; e=set_next(edges))
/*nothing*/ ;
+ /* we could be stepped out of the loop before the set iterated to the end */
+ set_break(edges);
+
pset_insert_ptr(clique, e->n1);
pset_insert_ptr(clique, e->n2);
remove_edge(edges, e->n1, e->n2, &n_edges);
my.nr_2_irn = pmap_create();
FIRM_DBG_REGISTER(my.dbg, "firm.be.coilp2");
+ my.normal_colors = bitset_alloca(arch_register_class_n_regs(co->cls));
+ bitset_clear_all(my.normal_colors);
+ arch_put_non_ignore_regs(co->aenv, co->cls, my.normal_colors);
+ my.n_colors = bitset_popcnt(my.normal_colors);
+
ienv = new_ilp_env(co, ilp2_build, ilp2_apply, &my);
sol_state = ilp_go(ienv);
#else /* WITH_ILP */
-static void only_that_you_can_compile_without_WITH_ILP_defined(void) {
+static INLINE void only_that_you_can_compile_without_WITH_ILP_defined(void) {
}
#endif /* WITH_ILP */
projects / libfirm / blobdiff