-/* $Id$ */
+/*
+ * 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.
+ *
+ * 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.
+ */
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
+/**
+ * @file
+ * @brief Scheduling utilities for nodes in Blocks and Blocks.
+ * @author Sebastian Hack
+ * @version $Id$
+ */
+#include "config.h"
-#ifdef HAVE_STDLIB_H
-# include <stdlib.h>
-#endif
+#include <stdlib.h>
-#include "impl.h"
#include "irprintf.h"
#include "irgwalk.h"
#include "firm_types.h"
#include "iredges_t.h"
#include "ircons.h"
#include "irextbb.h"
+#include "irgmod.h"
#include "debug.h"
#include "bemodule.h"
#include "bearch.h"
-#include "besched_t.h"
+#include "besched.h"
#include "beutil.h"
#include "belistsched.h"
-
-FIRM_IMPL1(sched_get_time_step, int, const ir_node *)
-FIRM_IMPL1(sched_has_next, int, const ir_node *)
-FIRM_IMPL1(sched_has_prev, int, const ir_node *)
-FIRM_IMPL1(sched_next, ir_node *, const ir_node *)
-FIRM_IMPL1(sched_prev, ir_node *, const ir_node *)
-FIRM_IMPL1(sched_first, ir_node *, const ir_node *)
-FIRM_IMPL1(sched_last, ir_node *, const ir_node *)
-FIRM_IMPL2(sched_add_after, ir_node *, ir_node *, ir_node *)
-FIRM_IMPL2(sched_add_before, ir_node *, ir_node *, ir_node *)
-FIRM_IMPL1_VOID(sched_init_block, ir_node *)
-FIRM_IMPL1_VOID(sched_reset, ir_node *)
-FIRM_IMPL2(sched_comes_after, int, const ir_node *, const ir_node *)
-FIRM_IMPL1_VOID(sched_remove, ir_node *)
+#include "belive.h"
size_t sched_irn_data_offset = 0;
irg_block_walk_graph(irg, block_sched_dumper, NULL, f);
}
-/* Init the scheduling stuff. */
+BE_REGISTER_MODULE_CONSTRUCTOR(be_init_sched);
void be_init_sched(void)
{
- sched_irn_data_offset = register_additional_node_data(sizeof(sched_info_t));
+ sched_irn_data_offset = firm_register_additional_node_data(sizeof(sched_info_t));
}
-BE_REGISTER_MODULE_CONSTRUCTOR(be_init_sched);
-
void sched_renumber(const ir_node *block)
{
ir_node *irn;
}
}
-/* Verify a schedule. */
-int sched_verify(const ir_node *block)
-{
- int res = 1;
- const ir_node *irn;
- int i, n;
- int *save_time_step;
- const ir_node **save_nodes;
- const ir_edge_t *edge;
- pset *scheduled_nodes = pset_new_ptr_default();
- FIRM_DBG_REGISTER(firm_dbg_module_t *dbg_sched, "firm.be.sched");
-
- /* Count the number of nodes in the schedule. */
- n = 0;
- sched_foreach(block, irn)
- n++;
-
- if(n <= 0)
- return 1;
-
- save_time_step = xmalloc(n * sizeof(save_time_step[0]));
- save_nodes = xmalloc(n * sizeof(save_nodes[0]));
-
- i = 0;
- sched_foreach(block, irn) {
- sched_info_t *info = get_irn_sched_info(irn);
- save_time_step[i] = info->time_step;
- save_nodes[i] = (ir_node *)irn;
- info->time_step = i;
- pset_insert_ptr(scheduled_nodes, irn);
-
- i += 1;
- }
-
- /*
- * Check if each relevant operand of a node is scheduled before
- * the node itself.
- */
- sched_foreach(block, irn) {
- int i, n;
- int step = sched_get_time_step(irn);
-
- for(i = 0, n = get_irn_arity(irn); i < n; i++) {
- ir_node *op = get_irn_n(irn, i);
-
- if(to_appear_in_schedule(op)
- && !is_Phi(irn)
- && get_nodes_block(op) == block
- && sched_get_time_step(op) > step) {
-
- DBG((dbg_sched, LEVEL_DEFAULT,
- "%+F: %+F is operand of %+F but scheduled after\n", block, op, irn));
- res = 0;
- }
- }
- }
-
- /* Check, if the time steps are correct */
- for(i = 1; i < n; ++i) {
- if(save_time_step[i] - save_time_step[i - 1] <= 0) {
- DBG((dbg_sched, LEVEL_DEFAULT,
- "%+F from %+F(%d) -> %+F(%d) step shrinks from %d -> %d\n",
- block, save_nodes[i - 1], i - 1, save_nodes[i], i,
- save_time_step[i - 1], save_time_step[i]));
- res = 0;
- }
- }
-
- /* Restore the old time steps */
- i = 0;
- sched_foreach(block, irn) {
- sched_info_t *info = get_irn_sched_info(irn);
- info->time_step = save_time_step[i++];
- }
-
- /* Check for all nodes in the block if they are scheduled. */
- foreach_out_edge(block, edge) {
- ir_node *irn = get_edge_src_irn(edge);
- if(to_appear_in_schedule(irn) && !pset_find_ptr(scheduled_nodes, irn)) {
- DBG((dbg_sched, LEVEL_DEFAULT,
- "%+F: %+F is in block but not scheduled\n", block, irn));
- res = 0;
- }
- }
-
- del_pset(scheduled_nodes);
- free(save_time_step);
- free((void *) save_nodes);
- return res;
-}
-
-/**
- * Block-Walker: verify the current block and update the status
- */
-static void sched_verify_walker(ir_node *block, void *data)
+int sched_skip_cf_predicator(const ir_node *irn, void *data)
{
- int *res = data;
- *res &= sched_verify(block);
+ (void)data;
+ return is_cfop(irn);
}
-/* Verify the schedules in all blocks of the irg. */
-int sched_verify_irg(ir_graph *irg)
+int sched_skip_phi_predicator(const ir_node *irn, void *data)
{
- int res = 1;
- irg_block_walk_graph(irg, sched_verify_walker, NULL, &res);
-
- return res;
-}
-
-int sched_skip_cf_predicator(const ir_node *irn, void *data) {
- arch_env_t *ae = data;
- return arch_irn_class_is(ae, irn, branch);
-}
-
-int sched_skip_phi_predicator(const ir_node *irn, void *data) {
+ (void) data;
return is_Phi(irn);
}
/* Skip nodes in a schedule. */
ir_node *sched_skip(ir_node *from, int forward, sched_predicator_t *predicator, void *data)
{
- const ir_node *bl = get_block(from);
+ const ir_node *bl = get_block_const(from);
ir_node *curr;
if (forward) {
//---------------------------------------------------------------------------
typedef struct remove_dead_nodes_env_t_ {
- ir_graph *irg;
bitset_t *reachable;
+ ir_graph *irg;
+ be_lv_t *lv;
} remove_dead_nodes_env_t;
/**
if (bitset_is_set(env->reachable, get_irn_idx(node)))
continue;
+ if (env->lv)
+ be_liveness_remove(env->lv, node);
sched_remove(node);
-
- /* when a node is exchanged, it is turned into Bad, do not set ins for those */
- if (is_Bad(node))
- continue;
-
- be_kill_node(node);
+ kill_node(node);
}
}
void be_remove_dead_nodes_from_schedule(ir_graph *irg)
{
remove_dead_nodes_env_t env;
- env.irg = irg;
env.reachable = bitset_alloca(get_irg_last_idx(irg));
+ env.lv = be_get_irg_liveness(irg);
+ env.irg = irg;
// mark all reachable nodes
irg_walk_graph(irg, mark_dead_nodes_walker, NULL, &env);
// walk schedule and remove non-marked nodes
irg_block_walk_graph(irg, remove_dead_nodes_walker, NULL, &env);
}
+
+int (sched_get_time_step)(const ir_node *node)
+{
+ return _sched_get_time_step(node);
+}
+
+int (sched_has_next)(const ir_node *node)
+{
+ return _sched_has_next(node);
+}
+
+int (sched_has_prev)(const ir_node *node)
+{
+ return _sched_has_prev(node);
+}
+
+ir_node *(sched_next)(const ir_node *node)
+{
+ return _sched_next(node);
+}
+
+ir_node *(sched_prev)(const ir_node *node)
+{
+ return _sched_prev(node);
+}
+
+int (sched_is_scheduled)(const ir_node *node)
+{
+ return _sched_is_scheduled(node);
+}
+
+ir_node *(sched_first)(const ir_node *node)
+{
+ return _sched_first(node);
+}
+
+ir_node *(sched_last)(const ir_node *node)
+{
+ return _sched_last(node);
+}
+
+void (sched_add_after)(ir_node *after, ir_node *node)
+{
+ _sched_add_after(after, node);
+}
+
+void (sched_add_before)(ir_node *before, ir_node *node)
+{
+ _sched_add_before(before, node);
+}
+
+void (sched_init_block)(ir_node *block)
+{
+ _sched_init_block(block);
+}
+
+void (sched_remove)(ir_node *node)
+{
+ _sched_remove(node);
+}
+
+void (sched_reset)(ir_node *node)
+{
+ _sched_reset(node);
+}
+
+int (sched_comes_after)(const ir_node *n1, const ir_node *n2)
+{
+ return _sched_comes_after(n1, n2);
+}
projects / libfirm / blobdiff