[8u-dev] RFA: 8186461: Zero's atomic_copy64() should use SPE instructions on linux-powerpcspe

[Rob McKenna]

Approved

    -Rob

On 26/06/18 16:11, Severin Gehwolf wrote:
> Hi,
> 
> Please approve this Zero-only patch for JDK 8u which fixes a build
> issue on PPC 32-bit systems which don't have FPUs. The patch from JDK
> 10 applies as is with minor context changes after JDK-8185723[1] has
> been applied:
> 
> JDK 8:
> static void atomic_copy64(volatile void *src, volatile void *dst)
> 
> vs:
> 
> JDK 10:
> static void atomic_copy64(const volatile void *src, volatile void *dst)
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8186461
> webrev: http://cr.openjdk.java.net/~sgehwolf/webrevs/JDK-8186461/webrev.01/
> Original review-thread:
> http://mail.openjdk.java.net/pipermail/hotspot-dev/2017-November/029265.html
> 
> Thanks,
> Severin
> 
> [1] http://mail.openjdk.java.net/pipermail/jdk8u-dev/2018-June/007579.html