[m-rev.] for review: delete .regparm and .picreg

[Julien Fischer]

On Thu, 25 Feb 2016, Zoltan Somogyi wrote:

> This implements the decision we reached yesterday.
>
> I have successfully bootchecked this diff in three grades:
> asm_fast.gc.stseg, none.gc and hlc.gc. I also tried in
> hlc.profall.gc. That failed, with the symptom being an infinite
> loop in the stage 2 compiler when compiling some of the modules
> in the stage 3 library. However, since this loop seems to be
> nondeterministic: when I repeat the compilation command
> that looped inside the bootcheck, it does not loop.
> Does anyone remember such Heisenbugs being par for the
> course for hlc.prof* grades? I remember they were for
> the asm_fast.prof* grades. In any case, I don't think it is
> likely that the loop has anything to do with this diff.

Possibly, the problem is related to this:

<https://www.mercurylang.org/bugs/view.php?id=8>

Julien.