ir_graph *create_irg_copy(ir_graph *irg)
{
ir_graph *res = alloc_graph();
res->irg_pinned_state = irg->irg_pinned_state;
/* clone the frame type here for safety */
irp_reserve_resources(irp, IRP_RESOURCE_ENTITY_LINK);
res->frame_type = clone_frame_type(irg->frame_type);
ir_reserve_resources(irg, IR_RESOURCE_IRN_LINK);
/* copy all nodes from the graph irg to the new graph res */
irg_walk_anchors(irg, copy_all_nodes, rewire, res);
/* copy the Anchor node */
res->anchor = get_new_node(irg->anchor);
/* -- The end block -- */
set_irg_end_block (res, get_new_node(get_irg_end_block(irg)));
set_irg_end (res, get_new_node(get_irg_end(irg)));
/* -- The start block -- */
set_irg_start_block(res, get_new_node(get_irg_start_block(irg)));
set_irg_no_mem (res, get_new_node(get_irg_no_mem(irg)));
set_irg_start (res, get_new_node(get_irg_start(irg)));
/* Proj results of start node */
set_irg_initial_mem(res, get_new_node(get_irg_initial_mem(irg)));
ir_free_resources(irg, IR_RESOURCE_IRN_LINK);
irp_free_resources(irp, IRP_RESOURCE_ENTITY_LINK);
return res;
}
void irg_walk(ir_node *node, irg_walk_func *pre, irg_walk_func *post,
void *env)
{
ir_graph *irg = get_irn_irg(node);
ir_reserve_resources(irg, IR_RESOURCE_IRN_VISITED);
inc_irg_visited(irg);
irg_walk_core(node, pre, post, env);
ir_free_resources(irg, IR_RESOURCE_IRN_VISITED);
}
void ssa_cons_start(ir_graph *irg, int n_loc)
{
add_irg_constraints(irg, IR_GRAPH_CONSTRAINT_CONSTRUCTION);
irg_set_nloc(irg, n_loc);
/*
* Note: we could try to reuse existing frag arrays, but it does not
* seems worth to do this. First, we have to check if they really exists and
* then clear them. We do not expect SSA construction is used often.
*/
ir_reserve_resources(irg, IR_RESOURCE_PHI_LIST);
ssa_cons_walker(irg, NULL, prepare_blocks, NULL);
}
void analyze_irg_args_weight(ir_graph *irg)
{
ir_entity *entity = get_irg_entity(irg);
if (entity == NULL)
return;
assert(is_method_entity(entity));
if (entity->attr.mtd_attr.param_weight != NULL)
return;
ir_reserve_resources(irg, IR_RESOURCE_IRN_VISITED);
inc_irg_visited(irg);
analyze_method_params_weight(entity);
ir_free_resources(irg, IR_RESOURCE_IRN_VISITED);
}