[aarch64-port-dev ] aarch64 port "review"

[Roland Westrelin]

Hi Ananth,

Thanks for your comments.

> So far the codegen of the aarch64 JIT looks very strong, no major
> pitfalls to be seen. However, given the nature of aarch64 cores, we
> are seeing a greater need for predictive pre-fetching, both in
> compiled code, and in the runtime itself (GC is particularly
> sensitive).

C2 has very little support for prefetching. I suppose it's been tried on
other platforms but I don't know what the history is. Do you know if
other compilers (gcc for instance) successfully take advantage of
profiling on arm?

Roland.