[Bug target/70123] [5 Regression] Miscompilation of cfitsio testcase on s390x-linux starting with r222144

[law at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70123

--- Comment #11 from Jeffrey A. Law <law at redhat dot com> ---
Certainly OK by me to backport to gcc-5.  So go for it Bernd when you're back
from PTO.