RFR: 8260355: AArch64: deoptimization stub should save vector registers [v4]

Nick Gasson nick.gasson at arm.com
Thu Feb 4 10:02:29 UTC 2021


On 02/04/21 16:18 pm, Andrew Haley wrote:
>
> Yeah. The problem here is that safepoints with live vectors aren't so
> common, so it's hard to test, I get it. Maybe this will have to do.

You can test that situation quite readily with:

  make test TEST="jdk/incubator/vector" \
     JTREG="VM_OPTIONS=-XX:+DeoptimizeALot -XX:DeoptimizeALotInterval=0"

Which will segfault with current JDK. I guess the difficulty is showing
it hasn't regressed something else.

--
Thanks,
Nick


More information about the hotspot-dev mailing list