dmd codegen improvements

[via Digitalmars-d]

On Wednesday, 19 August 2015 at 09:29:31 UTC, Dmitry Olshansky 
wrote:
> I do not. I underestime the benefits of tons of subtle passes 
> that play into 0.1-0.2% in some cases. There are lots and lots 
> of this in GCC/LLVM. If having the best code generated out 
> there is not the goal we can safely omit most of these focusing 
> on the most critical bits.

Well, you can start on this now, but by the time it is ready and 
hardened, LLVM might have received improved AVX2 and AVX-512 code 
gen from Intel. Which basically will leave DMD in the dust.