[Bug tree-optimization/112361] [14 Regression] avx512f-reduce-op-1.c miscompiled since r14-5076

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112361

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
You can use SDE (the simulator from Intel), but I suppose just inspecting the
vectorized code should work fine as well.  I suspect we fail to fail
vectorization when we have a masked op but no native masked_fold_left as
we cannot open-code that variant.