[Bug c++/71885] Incorrect code generated with -01, function calls are missing

[eric at baculasystems dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71885

--- Comment #2 from Eric Bollengier <eric at baculasystems dot com> ---
Created attachment 38907
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38907&action=edit
c++ file that reproduces the issue