EM_PERF_DOMAIN_ARTIFICIAL
#define em_is_artificial(em) ((em)->flags & EM_PERF_DOMAIN_ARTIFICIAL)
if ((flags & EM_PERF_DOMAIN_ARTIFICIAL) && cb->get_cost) {
flags |= EM_PERF_DOMAIN_ARTIFICIAL;
if (!microwatts && !(flags & EM_PERF_DOMAIN_ARTIFICIAL)) {