[aarch64-port-dev ] RFR: 8169697: aarch64: vectorized MLA instruction not generated for some test cases

[Roland Westrelin]

Hi Ningsheng,

> NEON vector MLA instructions can not be generated in some simple
> multiply-add cases.
>
> Bug:
> https://bugs.openjdk.java.net/browse/JDK-8169697
>

This is a bug fix and bug fixes can still be pushed without restrictions
so I see no reason to not go with this:

> In the mean time, Yang also has a more generic fix for this issue,
> which patches share code and could also fix this issue:
>
> http://cr.openjdk.java.net/~njian/8169697/webrev.share/

That looks good to me. Anyone on the compiler side can take a look (and
sponsor)?

Roland.