[Patch, fortran] [00/66] PR fortran/43829 Inline sum and product (AKA scalarization of reductions)

[Richard Guenther]

On Fri, Nov 4, 2011 at 2:02 AM, Mikael Morin <mikael.morin@sfr.fr> wrote:
> On Tuesday 01 November 2011 22:07:48 Paul Richard Thomas wrote:
>> The only, slight worry that I have is that it is going to make Richi's
>> middle end scalarization nearly impossible to use for gfortran.
>> However, the enhanced capability that this patch brings makes it a
>> worthy addition to gfortran.
>>
> I think that Richi's middle-end arrays and gfortran's scalarizer are more or
> less incompatible, regardless of this patch. And if they are made to coexist
> side by side at some point, this patch won't make it either better/easier or
> worse/harder IMHO.

Indeed.  In the ideal form the current scalarizer could defer scalarizing
innermost loop (nests) to the middle-end, my hackish patches from earlier
this year of course were just hacks (to eventually get some interest from
you folks).  But of course not even the middle-end parts are completely
ready (partly also due to lack of good test coverage possibility - a chicken
and egg problem :/).

So I think improving the Fortran scalarizer is time that is very well spent.

Thanks,
Richard.

>
>> OK for trunk.
>>
> Thanks for the review!
> Committed as follows.
>
> Mikael
>
> patch revision
> ============
> 01    180842
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> tests 180922
>