https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124545

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to ptomsich from comment #2)
> Created attachment 63960 [details]
> match.pd-based patch
> 
> For what it's worth...
> 
> I also took a shot at this today, as I was wondering whether this can be
> done with match.pd and narrowly matched for this pass.  Surprisingly I came
> across the 'op!' operator/qualifier which only works inside of VN.
> 
> Tested on aarch64 only.

Would you mind re-basing, testing and posting the patch?  Thanks.

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