[Bug tree-optimization/82494] UBSAN in gcc/tree-data-ref.c:3427:16: runtime error: signed integer overflow: 131072 * -131072 cannot be represented in type 'int'

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82494

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #5)
> r9-3927 changed the type from int to HOST_WIDE_INT which is always at least
> 64bit ...
> 
> I also wonder if we could use wi::widest_int here.

That's prohibitively expensive (storage-wise).  Note propagating a failure
upwards should in theory be possible (but it's going to "hurt" - welcome C++
exceptions?)