#include "irgraph_t.h"
#include "iredges_t.h"
#include "ircons.h"
+#include "irextbb.h"
#include "debug.h"
#include "bearch.h"
unsigned n_blks; /**< number of blocks in the list */
} anchor;
-/**
- * Ext-Block walker: create a block schedule
- */
-static void create_block_list(ir_extblk *blk, void *env) {
- anchor *list = env;
- int i, n;
+static void add_block(anchor *list, ir_node *block) {
+ if(list->start == NULL) {
+ list->start = block;
+ list->end = block;
+ } else {
+ set_irn_link(list->end, block);
+ list->end = block;
+ }
- for (i = 0, n = get_extbb_n_blocks(blk); i < n; ++i) {
- ir_node *block = get_extbb_block(blk, i);
+ list->n_blks++;
+}
- set_irn_link(block, NULL);
- if (list->start)
- set_irn_link(list->end, block);
- else
- list->start = block;
+static void create_block_list(ir_node *leader_block, anchor *list) {
+ int i;
+ ir_node *block = NULL;
+ const ir_edge_t *edge;
- list->end = block;
- ++list->n_blks;
+ ir_extblk *extbb = get_Block_extbb(leader_block);
+ if(extbb_visited(extbb))
+ return;
+ mark_extbb_visited(extbb);
+
+ for(i = 0; i < get_extbb_n_blocks(extbb); ++i) {
+ block = get_extbb_block(extbb, i);
+ add_block(list, block);
+ }
+
+ assert(block != NULL);
+
+ // pick successor extbbs
+ foreach_block_succ(block, edge) {
+ ir_node *succ = get_edge_src_irn(edge);
+
+ create_block_list(succ, list);
+ }
+
+ for(i = 0; i < get_extbb_n_blocks(extbb) - 1; ++i) {
+ block = get_extbb_block(extbb, i);
+ foreach_block_succ(block, edge) {
+ ir_node *succ = get_edge_src_irn(edge);
+
+ create_block_list(succ, list);
+ }
}
}
+void compute_extbb_execfreqs(ir_graph *irg, exec_freq_t *execfreqs);
+
/*
* Calculates a block schedule. The schedule is stored as a linked
* list starting at the start_block of the irg.
list.start = NULL;
list.end = NULL;
list.n_blks = 0;
- irg_extblock_walk_graph(irg, NULL, create_block_list, &list);
+ inc_irg_block_visited(irg);
+ create_block_list(get_irg_start_block(irg), &list);
/** create an array, so we can go forward and backward */
blk_list = NEW_ARR_D(ir_node *, irg->obst,list.n_blks);