[Bug middle-end/127862] VEC_PERM_EXPR merge patterns mishandle permutes whose inputs and result differ in length (ICE with svld1rq + svrev, wrong code)

[igor at tachyum dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127862

--- Comment #1 from Igor Shevlyakov <igor at tachyum dot com> ---
Created attachment 65819
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=65819&action=edit
vec-perm-merge-sve-run.c