[Bug tree-optimization/118297] vect_analyze_loop_form gets confused by outer loop that only executes its body once

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118297

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Created attachment 60041
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=60041&action=edit
-Wall -Wextra -Ofast -std=c++20 -march=znver3 -gno-as-loc-support