[Bug c++/82345] low performance (comparing to clang)

[claprix at yandex dot ru]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82345

--- Comment #3 from Eugene <claprix at yandex dot ru> ---
Created attachment 42249
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42249&action=edit
source code