On 29 Aug 2015 12:10 am, "Walter Bright via Digitalmars-d" <digitalmars-d@puremagic.com> wrote:
>
> On 8/28/2015 9:49 AM, Dmitry Olshansky wrote:
>>
>> Have you ever written a backend? What is the evidance?
>>
>> Consider that x86 x64 bit support was done in about one year and a half by
>> Walter single-handedly that is without freezing the other activity on DMD, of
>> course. Aside from emitting different sequences of instructions most IR-based
>> optimizations stay the same.
>
>
> Doing an ARM back end wouldn't be that hard. It's much less complex than x86. Most of the work would be deleting about half of the x86 code generator :-)
>

Don't forget you have about a 100_000_000 distinct ABIs, with about 100_000_000 distinct CPUs/Boards to target.

;-)