+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdlib.h>
#include "impl.h"
#include "irprintf.h"
#include "irgwalk.h"
-#include "irnode.h"
+#include "irnode_t.h"
+#include "iredges_t.h"
+#include "debug.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_succ, 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_succ, ir_node *, 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_remove, ir_node *)
size_t sched_irn_data_offset = 0;
FILE *f = env;
const ir_node *curr;
- ir_fprintf(f, "%n:\n", block);
+ ir_fprintf(f, "%+F:\n", block);
sched_foreach(block, curr) {
- ir_fprintf(f, "\t%n\n", curr);
+ sched_info_t *info = get_irn_sched_info(curr);
+ ir_fprintf(f, "\t%6d: %+F\n", info->time_step, curr);
}
}
void be_sched_init(void)
{
sched_irn_data_offset = register_additional_node_data(sizeof(sched_info_t));
+ firm_dbg_register("be.sched");
}
-void be_sched_test(void)
+void sched_renumber(const ir_node *block)
{
- int i, n;
- struct obstack obst;
+ ir_node *irn;
+ sched_info_t *inf;
+ sched_timestep_t step = 0;
- obstack_init(&obst);
+ sched_foreach(block, irn) {
+ inf = get_irn_sched_info(irn);
+ inf->time_step = step;
+ step += SCHED_INITIAL_GRANULARITY;
+ }
+}
- for(i = 0, n = get_irp_n_irgs(); i < n; ++i) {
- ir_graph *irg = get_irp_irg(i);
- list_sched(irg, trivial_selector, NULL);
- be_sched_dump(stdout, irg);
- }
+int sched_verify(const ir_node *block)
+{
+ firm_dbg_module_t *dbg_sched = firm_dbg_register("be.sched");
+ 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_set_mask(dbg_sched, -1);
+
+ /* Count the number of nodes in the schedule. */
+ n = 0;
+ sched_foreach(block, irn)
+ n++;
+
+ if(n <= 0)
+ return 1;
+
+ save_time_step = malloc(n * sizeof(save_time_step[0]));
+ save_nodes = malloc(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));
+ }
+
+ del_pset(scheduled_nodes);
+ free(save_time_step);
+ free((void *) save_nodes);
+ return res;
+}
+
+static void sched_verify_walker(ir_node *irn, void *data)
+{
+ int *res = data;
+ *res &= sched_verify(irn);
+}
+
+int sched_verify_irg(ir_graph *irg)
+{
+ int res = 1;
+ irg_block_walk_graph(irg, sched_verify_walker, NULL, &res);
+
+ return res;
+}
+
+int (sched_comes_after)(const ir_node *n1, const ir_node *n2)
+{
+ return _sched_comes_after(n1, n2);
+}
+
+int sched_skip_cf_predicator(const ir_node *irn, void *data) {
+ arch_env_t *ae = data;
+ return arch_irn_classify(ae, irn) == arch_irn_class_branch;
+}
+
+int sched_skip_phi_predicator(const ir_node *irn, void *data) {
+ return is_Phi(irn);
+}
+
+extern ir_node *sched_skip(ir_node *from, int forward,
+ sched_predicator_t *predicator, void *data)
+{
+ const ir_node *bl = get_block(from);
+ ir_node *curr;
- obstack_free(&obst, NULL);
+ for(curr = from; curr != bl && predicator(curr, data);
+ curr = forward ? sched_next(curr) : sched_prev(curr));
+ return curr;
}
projects / libfirm / blobdiff