[Bug target/95762] Failure to optimize __builtin_convertvector from vector of 16 chars to vector of 16 shorts in a single instruction on AVX2

[rguenther at suse dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95762

--- Comment #4 from rguenther at suse dot de <rguenther at suse dot de> ---
On Fri, 19 Jun 2020, jakub at gcc dot gnu.org wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95762
> 
> --- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
> And I should note, because of offloading, it would be better to do that kind 
> of
> folding only after_inlining.

Hmm, does that also hold for all the vector permute/ctor "optimizations"
forwprop does?