Use SIMD to accelerate comment lexing

[Manu via Digitalmars-d]

On 2 June 2015 at 05:39, Walter Bright via Digitalmars-d
<digitalmars-d at puremagic.com> wrote:
> https://issues.dlang.org/show_bug.cgi?id=14641
>
> Manu, our resident god of vector instructions, do you want to take this on?

How do you measure this? Is there a convenient setup that will produce
a realistic test environment?
This is more awkward in C than in D, it needs a different
implementation for each compiler... will DMD's CI build with all
common C compilers to prove that the implementations are correct?