i386 only supports watchpoints up to size 4, 8 bytes causes extra
counts and test failures.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/tests/wp.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/perf/tests/wp.c b/tools/perf/tests/wp.c
index cc8719609b19..6c178985e37f 100644
--- a/tools/perf/tests/wp.c
+++ b/tools/perf/tests/wp.c
@@ -20,7 +20,12 @@ do {                                            \
 	TEST_ASSERT_VAL(text, count == val);    \
 } while (0)
 
+#ifdef __i386__
+/* Only breakpoint length less-than 8 has hardware support on i386. */
+volatile u32 data1;
+#else
 volatile u64 data1;
+#endif
 volatile u8 data2[3];
 
 #ifndef __s390x__
-- 
2.46.0.469.g59c65b2a67-goog