> On Jan 26, 2018, at 2:38 PM, Clem Cole <cl...@ccc.com> wrote:
>
> ...
> VMSinc had the Gem compiler as part of their license. As I say, they have
> Neil hacking on it again. But I believe that he is only worried about
> Itanium and INTEL*64 at the moment. I also do not know what they are doing
> with the front-ends.
One of the more curious front ends of GEM is the Alpha assembler. I found out
about that when doing some Alpha hand-optimizing early on (a handcoded "memcpy
with TCP checksum calculation while doing it" if I remember right). It turned
out I could write drafts of that code and give it to the assembler with a
/OPTIMIZE switch to let the back end take what I wrote and do stuff to it. It
wasn't always right, but it was a neat source of ideas.
The only other optimizing assembler I can think of is SOAP, way back in the
1950s.
paul
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