[Bug tree-optimization/92645] Hand written vector code is 450 times slower when compiled with GCC compared to Clang

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92645

--- Comment #1 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Created attachment 47340
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47340&action=edit
Clang source