[Bug other/100826] Add that "-fgcse-after-reload" is enabled at "-O3"

[firasuke at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100826

--- Comment #4 from Firas Khalil Khana <firasuke at gmail dot com> ---
Glad I could help. Thanks for your time and effort!