<p dir="ltr">On 29 Aug 2015 12:10 am, "Walter Bright via Digitalmars-d" <<a href="mailto:digitalmars-d@puremagic.com">digitalmars-d@puremagic.com</a>> wrote:<br>
><br>
> On 8/28/2015 9:49 AM, Dmitry Olshansky wrote:<br>
>><br>
>> Have you ever written a backend? What is the evidance?<br>
>><br>
>> Consider that x86 x64 bit support was done in about one year and a half by<br>
>> Walter single-handedly that is without freezing the other activity on DMD, of<br>
>> course. Aside from emitting different sequences of instructions most IR-based<br>
>> optimizations stay the same.<br>
><br>
><br>
> 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 :-)<br>
></p>
<p dir="ltr">Don't forget you have about a 100_000_000 distinct ABIs, with about 100_000_000 distinct CPUs/Boards to target.</p>
<p dir="ltr">;-)</p>