[Bug other/63426] [meta-bug] Issues found with -fsanitize=undefined

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63426
Bug 63426 depends on bug 100213, which changed state.

Bug 100213 Summary: Signed integer overflow in poly-int.h via 
alias.c:memrefs_conflict_p
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100213

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |DUPLICATE