Advice needed: programmatically generating primops?

kudah kudahkukarek at gmail.com
Fri Feb 15 12:36:24 CET 2013


>with -traditional concatenation is not available.

#define RET(x) x
#define CONCAT(x,y) RET(x)y

On Fri, 15 Feb 2013 11:17:20 +0000 Geoffrey Mainland
<mainland at apeiron.net> wrote:

> That was what I wanted to do at first, but I don't think it's
> possible.
> 
> First of all, on Linux at least, we invoke the preprocessor with
> -traditional, so concatenation is not available. That could be
> changed.
> 
> Without -traditional, CPP doesn't like the # characters in the names
> of our primops. If you see how to get around that issue, please let
> me know :)
> 
> Geoff
> 
> On 02/15/2013 11:08 AM, Gábor Lehel wrote:
> > Could it be done with CPP macros perhaps, instead of a separate code
> > generator program? If the boilerplate is fairly regular and only
> > requires placeholder-substitution, identifier concatenation and
> > stringification, it could be an option. Just a thought.
> >
> > On Fri, Feb 15, 2013 at 11:51 AM, Geoffrey Mainland
> > <mainland at apeiron.net> wrote:
> >> Hi All,
> >>
> >> There is a huge amount of boilerplate involved in adding a full
> >> complement of vector primops to GHC. I would like to reduce this
> >> boilerplate by programmatically generating the vector primops. My
> >> plan is to add utils/genvecprimops and #include its output into
> >> primops.txt.pp.
> >>
> >> Does this sound reasonable? Any objections? While I'm at it, is
> >> there any related cleanup I could undertake?
> >>
> >> Thanks,
> >> Geoff
> >>
> >>
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> 
> 
> 
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