[Bug target/70941] [5/6 Regression] Test miscompiled with -O2.

[seurer at linux dot vnet.ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70941

--- Comment #13 from Bill Seurer <seurer at linux dot vnet.ibm.com> ---
That fixed the issues on power, thanks!