affinity_edge_t **affinity_edges;
set *memperms;
set_frame_entity_func set_frame_entity;
+ bool at_begin; /**< frame entities should be allocate at
+ the beginning of the stackframe */
};
/** Compare 2 affinity edges (used in quicksort) */
const ir_mode *mode, int align)
{
ir_node *spillnode = get_memory_edge(node);
- spill_t *spill;
assert(spillnode != NULL);
/* walk upwards and collect all phis and spills on this way */
if (is_Phi(spillnode)) {
- spill = collect_memphi(env, spillnode, mode, align);
+ collect_memphi(env, spillnode, mode, align);
} else {
- spill = collect_spill(env, spillnode, mode, align);
+ collect_spill(env, spillnode, mode, align);
}
ARR_APP1(ir_node *, env->reloads, node);
static ir_entity* create_stack_entity(be_fec_env_t *env, spill_slot_t *slot)
{
- ir_graph *irg = env->irg;
- ir_type *frame = get_irg_frame_type(irg);
- /* TODO: backend should be able to specify wether we want spill slots
- * at begin or end of frame */
- int at_start = 1;
- ir_entity *res = frame_alloc_area(frame, slot->size, slot->align, at_start);
+ ir_graph *irg = env->irg;
+ ir_type *frame = get_irg_frame_type(irg);
+ ir_entity *res = frame_alloc_area(frame, slot->size, slot->align,
+ env->at_begin);
/* adjust size of the entity type... */
ir_type *enttype = get_entity_type(res);
}
void be_assign_entities(be_fec_env_t *env,
- set_frame_entity_func set_frame_entity)
+ set_frame_entity_func set_frame_entity,
+ bool alloc_entities_at_begin)
{
env->set_frame_entity = set_frame_entity;
+ env->at_begin = alloc_entities_at_begin;
stat_ev_dbl("spillslots", set_count(env->spills));
create_memperms(env);
}
-BE_REGISTER_MODULE_CONSTRUCTOR(be_init_spillslots);
+BE_REGISTER_MODULE_CONSTRUCTOR(be_init_spillslots)
void be_init_spillslots(void)
{
FIRM_DBG_REGISTER(dbg, "firm.be.spillslots");