memset(stat, 0, sizeof(stat));
irg_block_walk_graph(irg, regpressureanawalker, NULL, &ra);
for (i = 0; i <= MAXPRESSURE; ++i) {
memset(stat, 0, sizeof(stat));
irg_block_walk_graph(irg, regpressureanawalker, NULL, &ra);
for (i = 0; i <= MAXPRESSURE; ++i) {