perf_evsel__append_filter 1200 tools/perf/util/evsel.c 	return perf_evsel__append_filter(evsel, "(%s) && (%s)", filter);
perf_evsel__append_filter 1205 tools/perf/util/evsel.c 	return perf_evsel__append_filter(evsel, "%s,%s", filter);