[vector] Intermittent failures in Long256VectorTests

[Halimi, Jean-Philippe]

It is a known bug, yes. We have not yet investigated this particular one. It was introduced by a new generator that tests corner case values. A follow-up patch adding support for shift operations will also highlight two crashes for Long256VectorTests.

We plan to start working on the issues as soon as the test coverage is fully done, which should be EOW.

Thanks,

Jp

-----Original Message-----
From: panama-dev [mailto:panama-dev-bounces at openjdk.java.net] On Behalf Of Vladimir Ivanov
Sent: Tuesday, June 5, 2018 7:32 AM
To: panama-dev at openjdk.java.net
Subject: [vector] Intermittent failures in Long256VectorTests

Hi,

I see intermittent failures in Long256VectorTests with the latest build:

test Long256VectorTests.mulLong256VectorTests(long[i * 5],
long[cornerCaseValue(i)]): failure
java.lang.AssertionError: at index #3, input1 = 15, input2 =
9223372036854775807 expected [9223372036854775793] but found [-9223371972430266383]

test Long256VectorTests.mulLong256VectorTests(long[i * 5], long[cornerCaseValue(i)], mask[i % 2]): failure
java.lang.AssertionError: at index #10, input1 = 50, input2 = 9223372036854775807, mask = true expected [-50] but found [42949672910]

test Long256VectorTests.mulLong256VectorTests(long[i * 5], long[cornerCaseValue(i)], mask[true]): failure
java.lang.AssertionError: at index #3, input1 = 15, input2 = 9223372036854775807, mask = true expected [9223372036854775793] but found [-9223371972430266383]

===============================================
jdk/incubator/vector/Long256VectorTests.java
Total tests run: 272, Failures: 3, Skips: 0 ===============================================

Is it a known bug?

Best regards,
Vladimir Ivanov