RFR (S) 8230238: Add another regression test for JDK-8134739

Aleksey Shipilev shade at redhat.com
Tue Aug 27 14:19:46 UTC 2019


8u fails without JDK-8134739 fix. Unfortunately, it does not reproduce on
compiler/loopopts/superword/TestVectorizationWithInvariant from there. It does, however, reproduce
on fuzzer tests that we luckily got (attached as 0021.tar.gz in JDK-8134739). We should really turn
that into proper additional regression test for JDK-8134739.

This would allow us to test 8u backports better. I am planning to backport it to 11u and 8u (where
it would expose the bug we want to fix).

jdk/jdk webrev:

Testing: new test with C1, C2, -Xcomp; the same in 8u (where it fails without 8134739, passes with
it); jdk-submit (running)


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