On 29 Aug 2015 12:10 am, "Walter Bright via Digitalmars-d" < [email protected]> 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. ;-)
