https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63303
--- Comment #18 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- On Tue, 21 Aug 2018, jvg1981 at aim dot com wrote: > intptr_t pVal = ((uintptr_t) p)/(sizeof *p); > intptr_t qVal = ((uintptr_t) q)/(sizeof *q); Note that this can be expanded like an exact division (right shift and multiply by reciprocal). See bug 67999 comment 24 and bug 81801 comment 4.
