[Bug middle-end/84433] gcc 7 and before miscompile loop and remove exit due to incorrect range calculation

[acsawdey at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84433

--- Comment #5 from acsawdey at gcc dot gnu.org ---
Very interesting ... the return can be added and the problem still exists.
However changing the size of the array sA to be >= 16 makes the problem go
away. Why is that?