message: stack2reg: Drain instead of only iterating
diff: @@ -316,15 +316,15 @@ fn remove_unused_stack_addr_and_stack_load(opt_ctx: &mut OptimizeContext<'_>) {
  for stack_slot_users in opt_ctx.stack_slot_usage_map.values_mut() {
  stack_slot_users
  .stack_addr
  - .iter()
  + .drain()
  .filter(|inst| stack_addr_load_insts_users.get(inst).map(|users| users.is_empty()).unwrap_or(true))
  - .for_each(|inst| StackSlotUsage::remove_unused_stack_addr(&mut func, *inst));
  + .for_each(|inst| StackSlotUsage::remove_unused_stack_addr(&mut func, inst));
  stack_slot_users
  .stack_load
  - .iter()
  + .drain()
  .filter(|inst| stack_addr_load_insts_users.get(inst).map(|users| users.is_empty()).unwrap_or(true))
  - .for_each(|inst| StackSlotUsage::remove_unused_load(&mut func, *inst));
  + .for_each(|inst| StackSlotUsage::remove_unused_load(&mut func, inst));
  }
  }
  