- insn = obstack_alloc(obst, sizeof(insn[0]));
- memset(insn, 0, sizeof(insn[0]));
-
- insn->irn = irn;
- insn->next_insn = sched_next(irn);
- if(get_irn_mode(irn) == mode_T) {
- ir_node *p;
-
- for(p = sched_next(irn); is_Proj(p); p = sched_next(p)) {
- if(arch_irn_consider_in_reg_alloc(arch_env, env->cls, p)) {
- arch_get_register_req(arch_env, &o.req, p, -1);
- o.carrier = p;
- o.irn = irn;
- o.pos = -(get_Proj_proj(p) + 1);
- o.partner = NULL;
- o.has_constraints = arch_register_req_is(&o.req, limited);
- obstack_grow(obst, &o, sizeof(o));
- insn->n_ops++;
- insn->out_constraints |= o.has_constraints;
- pre_colored += arch_get_irn_register(arch_env, p) != NULL;
- }
+ be_insn_t *insn = OALLOCZ(obst, be_insn_t);
+
+ bool has_constraints = false;
+
+ const arch_register_class_t *cls = env->cls;
+ insn->irn = irn;
+ be_foreach_definition(irn, cls, p,
+ /* found a def: create a new operand */
+ arch_register_req_t const *const req = arch_get_irn_register_req(p);
+ if (arch_register_req_is(req, limited)) {
+ o.regs = req->limited;
+ has_constraints = true;
+ } else {
+ o.regs = env->allocatable_regs->data;
+ has_constraints |= req->width > 1;