[Bug target/84172] option "-O3" create slower code

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84172

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andreas Otto from comment #3)
> send me the command that I should run…

I did:
(In reply to Andrew Pinski from comment #2)
> gcc-5 -march=native -mtune=native -g -static -O3 -o test.3 main.c -v