[Bug target/86448] GCC 9 compiler generates slower code for spec 2006 milc on a power9 using -mcpu=power9 than using -mcpu=power8

[kelvin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86448

--- Comment #5 from kelvin at gcc dot gnu.org ---
I apologize for an error in the previous comment.  The two columns should have
been labeled -mcpu=power8 (left) and -mcpu=power9 (right) instead of gcc8 and
gcc9.