[Bug tree-optimization/63828] [5 Regression] g++.dg/ipa/devirt-47.C fails for x32

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63828

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Jan Hubicka from comment #3)
> Aha, the BITS_PER_WORD really is intended to mean the pointer size (the
> structure needs to be at least big enough to hold the VPTR pointer). What is
> the correct way to get this value?

POINTER_SIZE will return the size of a pointer in bits.