[Bug rtl-optimization/110823] [missed optimization] >50% speedup for x86-64 ASCII processing a la GNU diffutils

[eggert at cs dot ucla.edu via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110823

--- Comment #1 from Paul Eggert <eggert at cs dot ucla.edu> ---
Created attachment 55644
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55644&action=edit
gcc -O2 -S output (from code-mbcel1.i)