RFR(XS): 8239363: PPC64: Wrong code generation after JDK-8183574

[Stefan Karlsson]

Looks good.

That was an unintentional change.

Thanks,
StefanK

On 2020-02-18 18:05, Doerr, Martin wrote:
>
> Hi,
>
> JDK-8183574: “Unify the is_power_of_2 functions” broke a piece of 
> PPC64 code.
>
> Issue with more details:
>
> https://bugs.openjdk.java.net/browse/JDK-8239363
>
> We need to restore usage of log2_long.
>
> Webrev:
>
> http://cr.openjdk.java.net/~mdoerr/8239363_ppc64_andi/webrev.00/
>
> Please review.
>
> Best regards,
>
> Martin
>