[Bug tree-optimization/90006] [7/8/9 Regression] gcc loops indefinitely around vect_get_constant_vectors on -O2 -ftree-slp-vectorize -fno-math-errno

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90006

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
OK, so the issue is we rely on vect_get_smallest_scalar_type to get us the
expected vectors for the call input but that doesn't work here.