RFR: 8271078: jdk/incubator/vector/Float128VectorTests.java failed a subtest [v3]

[Dean Long]

On Fri, 13 May 2022 04:08:37 GMT, Dean Long <dlong at openjdk.org> wrote:

>> This test was failing because the safepoint polling stub was only saving the low 8 bytes of XMM16-XMM31.  We need to save all 16 bytes by default.  I also added "wide" to the boolean parameter name to better reflect what it controls.  And I made the asserts in save_live_registers() match what we have in restore_live_registers().
>
> Dean Long has updated the pull request incrementally with one additional commit since the last revision:
> 
>   save_vectors --> save_wide_vectors

There is one test failing with this assert:

assert(((!attributes->uses_vl()) ||
       (attributes->get_vector_len() == AVX_512bit) ||
       (!_legacy_mode_vl) ||
       (attributes->is_legacy_mode())),"XMM register should be 0-15");

I'll need to investigate.

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PR: https://git.openjdk.java.net/jdk/pull/8690