DB((dbg, LEVEL_1, "===> Performing conversion optimization on %+F\n", irg));
do {
changed = false;
irg_walk_graph(irg, NULL, conv_opt_walker, &changed);
local_optimize_graph(irg);
DB((dbg, LEVEL_1, "===> Performing conversion optimization on %+F\n", irg));
do {
changed = false;
irg_walk_graph(irg, NULL, conv_opt_walker, &changed);
local_optimize_graph(irg);