[Bug tree-optimization/114403] [14 regression] LLVM miscompiled with -O3 -march=znver2 -fno-vect-cost-model since r14-6822-g01f4251b8775c8

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114403

--- Comment #18 from Richard Biener <rguenth at gcc dot gnu.org> ---
Just as hint we've had wrong upper bounds on vectorized loops/epilogues which
would trigger wrong unrolling.  But then unrolling also always hints as
eventually having wrong range-info.