1 files changed, 22 insertions, 0 deletions
diff --git a/src/pkg/runtime/race/testdata/mop_test.go b/src/pkg/runtime/race/testdata/mop_test.go
index b0b66562c..14591b184 100644
--- a/src/pkg/runtime/race/testdata/mop_test.go
+++ b/src/pkg/runtime/race/testdata/mop_test.go
@@ -1933,3 +1933,25 @@ func TestRaceMethodThunk4(t *testing.T) {
 	*(*int)(d.Base) = 42
 	<-done
 }
+
+func TestNoRaceTinyAlloc(t *testing.T) {
+	const P = 4
+	const N = 1e6
+	var tinySink *byte
+	done := make(chan bool)
+	for p := 0; p < P; p++ {
+		go func() {
+			for i := 0; i < N; i++ {
+				var b byte
+				if b != 0 {
+					tinySink = &b // make it heap allocated
+				}
+				b = 42
+			}
+			done <- true
+		}()
+	}
+	for p := 0; p < P; p++ {
+		<-done
+	}
+}