[aarch64-port-dev ] RFR(M): 8243392: Remodel CDS/Metaspace storage reservation
Andrew Haley
aph at redhat.com
Wed Apr 29 08:36:03 UTC 2020
On 4/29/20 8:47 AM, Nick Gasson wrote:
> This makes the
> relationship with the compressed class decode logic a bit clearer as the
> restriction comes from the MOV and MOVK instructions we use to
> decompress the pointer: we have to ensure the bits of the base and bits
> of the offset after shifting do not overlap.
This seems a bit crazy. Whyever would anyone want shifted
CompressedKlassPointers with an offset? I guess I'm going to have to
look very closely at this patch.
--
Andrew Haley (he/him)
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
https://keybase.io/andrewhaley
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