[Bug tree-optimization/117222] [15 regression] Missed optimization with with std::vector resize in loop since r15-575-gda73261ce7731b

[sjames at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117222

--- Comment #5 from Sam James <sjames at gcc dot gnu.org> ---
so with irange, evrp discovers _17's range earlier, but with prange, it doesn't
(only does so in vrp1?