LBR_NONE
task_context_opt(ctx)->lbr_stack_state == LBR_NONE) {
task_context_opt(ctx)->lbr_stack_state = LBR_NONE;
task_context_opt(ctx)->lbr_stack_state = LBR_NONE;
task_context_opt(ctx)->lbr_stack_state = LBR_NONE;