+/*
+ * 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.
+ */
/**
- * More experiments on coalescing.
- * @author Sebastian Hack
- * @date 14.04.2006
+ * @file
+ * @brief More experiments on coalescing.
+ * @author Sebastian Hack
+ * @date 14.04.2006
+ * @version $Id$
*/
-
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "list.h"
#include "pdeq.h"
#include "bitset.h"
+#include "raw_bitset.h"
#include "debug.h"
#include "bitfiddle.h"
#include "becopyopt.h"
#include "becopyopt_t.h"
#include "bechordal_t.h"
+#include "beirg_t.h"
#define DUMP_BEFORE 1
#define DUMP_AFTER 2
} col_cost_pair_t;
typedef struct {
- phase_t ph;
+ ir_phase ph;
copy_opt_t *co;
bitset_t *ignore_regs;
co2_irn_t *touched;
#define get_co2_irn(co2, irn) ((co2_irn_t *) phase_get_or_set_irn_data(&co2->ph, irn))
#define get_co2_cloud_irn(co2, irn) ((co2_cloud_irn_t *) phase_get_or_set_irn_data(&co2->ph, irn))
-static void *co2_irn_init(phase_t *ph, ir_node *irn, void *data)
+static void *co2_irn_init(ir_phase *ph, ir_node *irn, void *data)
{
co2_t *env = (co2_t *) ph;
affinity_node_t *a = get_affinity_info(env->co, irn);
static INLINE bitset_t *get_adm(co2_t *env, co2_irn_t *ci)
{
- if(!ci->adm_cache) {
- arch_register_req_t req;
+ if(ci->adm_cache == NULL) {
+ const arch_register_req_t *req;
ci->adm_cache = bitset_obstack_alloc(phase_obst(&env->ph), env->n_regs);
- arch_get_register_req(env->co->aenv, &req, ci->irn, BE_OUT_POS(0));
- if(arch_register_req_is(&req, limited)) {
- req.limited(req.limited_env, ci->adm_cache);
+ req = arch_get_register_req(env->co->aenv, ci->irn, BE_OUT_POS(0));
+
+ if(arch_register_req_is(req, limited)) {
+ int i, n;
+
+ n = env->n_regs;
+ for(i = 0; i < n; ++i) {
+ if(rbitset_is_set(req->limited, i))
+ bitset_set(ci->adm_cache, i);
+ }
ci->is_constrained = 1;
- }
- else {
+ } else {
bitset_copy(ci->adm_cache, env->ignore_regs);
bitset_flip_all(ci->adm_cache);
}
static void incur_constraint_costs(co2_t *env, ir_node *irn, col_cost_pair_t *col_costs, int costs)
{
- bitset_t *aux = bitset_alloca(env->co->cls->n_regs);
- arch_register_req_t req;
+ const arch_register_req_t *req;
- arch_get_register_req(env->co->aenv, &req, irn, BE_OUT_POS(0));
+ req = arch_get_register_req(env->co->aenv, irn, BE_OUT_POS(0));
- if(arch_register_req_is(&req, limited)) {
- bitset_pos_t elm;
- int n_constr;
+ if (arch_register_req_is(req, limited)) {
+ unsigned n_regs = env->co->cls->n_regs;
+ unsigned n_constr = 0;
+ unsigned i;
- req.limited(req.limited_env, aux);
- n_constr = bitset_popcnt(aux);
- bitset_foreach(aux, elm) {
- col_costs[elm].costs = add_saturated(col_costs[elm].costs, costs / n_constr);
+ n_constr = rbitset_popcnt(req->limited, n_regs);
+ for (i = 0; i < n_regs; ++i) {
+ if (rbitset_is_set(req->limited, i)) {
+ col_costs[i].costs = add_saturated(col_costs[i].costs, costs / n_constr);
+ }
}
}
}
static const char *get_dot_shape_name(co2_t *env, co2_irn_t *ci)
{
- arch_register_req_t req;
+ const arch_register_req_t *req;
- arch_get_register_req(env->co->aenv, &req, ci->irn, BE_OUT_POS(0));
- if(arch_register_req_is(&req, limited))
+ req = arch_get_register_req(env->co->aenv, ci->irn, BE_OUT_POS(0));
+ if(arch_register_req_is(req, limited))
return "diamond";
if(ci->fixed)
int co_solve_heuristic_new(copy_opt_t *co)
{
- char buf[256];
+ char buf[256];
co2_t env;
- FILE *f;
+ FILE *f;
- phase_init(&env.ph, "co2", co->cenv->birg->irg, PHASE_DEFAULT_GROWTH, co2_irn_init);
+ phase_init(&env.ph, "co2", co->cenv->birg->irg, PHASE_DEFAULT_GROWTH, co2_irn_init, NULL);
env.touched = NULL;
env.visited = 0;
env.co = co;