Re: [PATCH][RFC] tree-optimization/92335 - Improve sinking heuristics for vectorization

[Richard Sandiford <richard.sandiford@arm.com>]

Richard Biener <rguenther@suse.de> writes:
> On Mon, 14 Aug 2023, Prathamesh Kulkarni wrote:
>> On Mon, 7 Aug 2023 at 13:19, Richard Biener <richard.guenther@gmail.com> wrote:
>> > It doesn't seem to make a difference for x86.  That said, the "fix" is
>> > probably sticking the correct target on the dump-check, it seems
>> > that vect_fold_extract_last is no longer correct here.
>> Um sorry, I did go thru various checks in target-supports.exp, but not
>> sure which one will be appropriate for this case,
>> and am stuck here :/ Could you please suggest how to proceed ?
>
> Maybe Richard S. knows the magic thing to test, he originally
> implemented the direct conversion support.  I suggest to implement
> such dg-checks if they are not present (I can't find them),
> possibly quite specific to the modes involved (like we have
> other checks with _qi_to_hi suffixes, for float modes maybe
> just _float).

Yeah, can't remember specific selectors for that feature.  TBH I think
most (all?) of the tests were AArch64-specific.

Thanks,
Richard