[Bug testsuite/86519] [9 Regression] New test case gcc.dg/strcmpopt_6.c fails with its introduction in r262636

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86519

--- Comment #2 from seurer at gcc dot gnu.org ---
What system are you testing on?  I've seen the same failure on power 8 and
power 9 LE systems and power 7 and power 8 BE systems.