buf[i] = byte(i) // reset buf
				}
				for i := y + n; i < size; i++ {
					if buf[i] != byte(i) {
						t.Fatalf("suffix buf[%d] = %d", i, buf[i])
					}
				}
			}
		}
	}
}

func TestMemmoveLarge0x180000(t *testing.T) {
	if testing.Short() && testenv.Builder() == "" {
		t.Skip("-short")
	}

	t.Parallel()
	if race.Enabled {
		t.Skip("skipping large memmove test under race detector")
	}