[Bug middle-end/124491] [14/15 Regression] ICE in fold_vec_perm during ccp with -msve-vector-bits=256

[acoplan at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124491

--- Comment #9 from Alex Coplan <acoplan at gcc dot gnu.org> ---
(In reply to rguenther@suse.de from comment #8)
> Please make sure to add this testcase also to trunk.

Will do.