RFR (XS): 8217371: C2: Incorrect LP64 guard in x86.ad after JDK-8210764 (Update avx512 implementation)

[Nils Eliasson]

Hi Sandhya,

Looks good,

Regards,

Nils

On 2019-01-27 04:47, Viswanathan, Sandhya wrote:
>
> Hi All,
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8217371 
> <https://bugs.openjdk.java.net/browse/JDK-8217371>
>
> Webrev: http://cr.openjdk.java.net/~sviswanathan/8217371/webrev.00/ 
> <http://cr.openjdk.java.net/~sviswanathan/8217371/webrev.00/>
>
> The above webrev fixes the incorrect LP64 guard issue in x86.ad file.
>
> I have corrected the guard to _LP64 and updated the spill/fill 
> instructions.  This bug only affected the Knights family where 
> AVX512VL is not supported.
>
> I have tested it on SKX and Knights family with compiler jtreg tests.
>
> Please review.
>
> Best Regards,
>
> Sandhya
>
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