[Bug middle-end/123067] [16 Regression] wrong code at -O2 and above on x86_64-pc-linux-gnu since r16-5526

[kugan at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123067

--- Comment #5 from kugan at gcc dot gnu.org ---
Created attachment 63027
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63027&action=edit
RFC Patch