[Bug target/91269] [9/10 regression] unaligned floating-point register with -mcpu=niagara4 -fcall-used-g6

[mattst88 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91269

--- Comment #15 from Matt Turner <mattst88 at gmail dot com> ---
I believe the Known to work field is wrong and gcc-8.3.0 has this bug as well.
Can we have this backported to the gcc-8 branch?

Thank you!

(FWIW, we also discovered that lz4-1.8.3 fails to build on 64-bit sparc due to
tihs bug as well)