[Bug tree-optimization/90213] UBSAN: signed integer overflow: -5621332293356458048 * 8 cannot be represented in type 'long int'

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90213

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Hmm, I think I eventually wanted to backport it...