[10] RFR(S): JDK-8184943: AARCH64: Intrinsify hasNegatives

Andrew Haley aph at redhat.com
Fri Jul 21 14:53:03 UTC 2017

On 21/07/17 15:05, White, Derek wrote:

> If this is a problem, there might be a problem in copy_memory
> (stubGenerator_aarch64.cpp) as well, where we may read past an
> array.

I think that's the bit I wrote, and I'm fairly sure that we don't.

> I went looking for see if there's some padding at the end of a heap
> region that we were counting on, but didn't find any yet.

There isn't.  I know that because I once hit such a bug.

Andrew Haley
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
EAC8 43EB D3EF DB98 CC77 2FAD A5CD 6035 332F A671

More information about the hotspot-compiler-dev mailing list