[Bug target/77730] Fortran performance on aarch64 (6/7 regression heads-up)

[tulipawn at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77730

--- Comment #6 from PeteVine <tulipawn at gmail dot com> ---
There's definitely a problem with mcpu/mtune in GCC6 to the point I wasn't able
to get the expected performance back, please look here:

http://openbenchmarking.org/result/1609269-LO-GCRYPTAAR21

BTW, that benchmark required lots of hacking/patching to run on aarch64. Won't
work OOTB.