[Bug middle-end/122035] Wrong behavior under -O2 and -O3 optimization

[krzysiu858519851 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122035

--- Comment #6 from Krzysztof Pecka <krzysiu858519851 at gmail dot com> ---
Created attachment 62437
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=62437&action=edit
Test measurements file