[PATCH v2] perf test stat: Avoid hybrid assumption when virtualized

[Ian Rogers <irogers@google.com>]

The cycles event will fallback to task-clock in the hybrid test when
running virtualized. Change the test to not fail for this.

Fixes: a6b8bb2addd0 ("perf test: Add a test for default perf stat command")
Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/tests/shell/stat.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/perf/tests/shell/stat.sh b/tools/perf/tests/shell/stat.sh
index 5a2ca2bcf94d..da42427bb077 100755
--- a/tools/perf/tests/shell/stat.sh
+++ b/tools/perf/tests/shell/stat.sh
@@ -163,7 +163,11 @@ test_hybrid() {
   # Run default Perf stat
   cycles_events=$(perf stat -- true 2>&1 | grep -E "/cycles/|  cycles  " | wc -l)
 
-  if [ "$pmus" -ne "$cycles_events" ]
+  # The expectation is that default output will have a cycles events on each
+  # hybrid PMU. In situations with no cycles PMU events, like virtualized, this
+  # can fall back to task-clock and so the end count may be 0. Fail if neither
+  # condition holds.
+  if [ "$pmus" -ne "$cycles_events" ] && [ "0" -ne "$cycles_events" ]
   then
     echo "hybrid test [Found $pmus PMUs but $cycles_events cycles events. Failed]"
     err=1
-- 
2.47.1.613.gc27f4b7a9f-goog