[Bug tree-optimization/96043] BB vectorizer costing lumps everything together

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96043

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Turns out gcc.dg/vect/costmodel/x86_64/costmodel-pr69297.c can be massaged to
such case.