Use SIMD to accelerate comment lexing

[luminousone via Digitalmars-d]

On Monday, 1 June 2015 at 19:38:59 UTC, Walter Bright wrote:
> https://issues.dlang.org/show_bug.cgi?id=14641
>
> Manu, our resident god of vector instructions, do you want to 
> take this on?

Looking at that code, I would think that some well placed 
prefetch and Non Temporal move intrinsic's,  would do more good 
then anything else. CPU speculative read ahead is not so smart as 
one would think it otta be.