ir_graph *new_const_code_irg(void)
{
ir_graph *const res = new_r_ir_graph(NULL, 0);
mature_immBlock(get_irg_end_block(res));
/* There is no Start node in the const_code_irg */
set_irg_start(res, new_r_Bad(res, mode_T));
set_irg_frame(res, new_r_Bad(res, mode_BAD));
set_irg_args(res, new_r_Bad(res, mode_T));
set_irg_initial_mem(res, new_r_Bad(res, mode_M));
set_r_store(res, get_irg_no_mem(res));
/* Set the visited flag high enough that the blocks will never be
* visited. */
ir_node *const body_block = get_r_cur_block(res);
set_irn_visited(body_block, -1);
set_Block_block_visited(body_block, -1);
ir_node *const start_block = get_irg_start_block(res);
set_Block_block_visited(start_block, -1);
set_irn_visited(start_block, -1);
return res;
}
/**
* specialized version of irg_walk_2, called if only post callback exists
*/
static void irg_walk_2_post(ir_node *node, irg_walk_func *post, void *env)
{
ir_graph *irg = get_irn_irg(node);
ir_visited_t visited = irg->visited;
set_irn_visited(node, visited);
if (!is_Block(node)) {
ir_node *pred = get_nodes_block(node);
if (pred->visited < visited)
irg_walk_2_post(pred, post, env);
}
foreach_irn_in_r(node, i, pred) {
if (pred->visited < visited)
irg_walk_2_post(pred, post, env);
}
post(node, env);
}
