RFR: 8253843: AArch64: Use ishst for storestore barrier

[Andrew Haley]

On 08/10/2020 13:50, Alan Hayward wrote:
 > Closing this. Inline asm is the wrong way to go; it's not sensible to commonise everything else to the c++ functions;
 > there's no C++ atomic function for ishst.

I think that's right. If some convincing benchmark data were to show
that naked StoreStore was faster I would not object, but in the
absence of that I'll lean towards caution.

-- 
Andrew Haley  (he/him)
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
https://keybase.io/andrewhaley
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