[Bug tree-optimization/58122] loops are not evaluated at compile time if loop count > 17

[olegendo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58122

--- Comment #5 from Oleg Endo <olegendo at gcc dot gnu.org> ---
This issue seems to be working just fine.  Not sure what kind of test case to
add for this though... just scanning final assembler code for some expected hex
or dec constant?