[Bug tree-optimization/85158] ubsan and -O3 finds a problem

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85158

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
As a middle-ground between ints, HOST_WIDE_INTs and unlimited precision we have
offset_int, widest_int etc.  But perhaps using even that would be too costly.