[Bug bootstrap/63496] New: ../../gcc/ipa-polymorphic-call.c:2117:1: error: assuming signed overflow does not occur when assuming that (X + c) < X is always false [-Werror=strict-overflow]

[sch...@linux-m68k.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63496

            Bug ID: 63496
           Summary: ../../gcc/ipa-polymorphic-call.c:2117:1: error:
                    assuming signed overflow does not occur when assuming
                    that (X + c) < X is always false
                    [-Werror=strict-overflow]
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
          Assignee: unassigned at gcc dot gnu.org
          Reporter: sch...@linux-m68k.org
                CC: hubicka at gcc dot gnu.org

Broken by r216010

../../gcc/ipa-polymorphic-call.c: In function 'tree_node*
extr_type_from_vtbl_ptr_store(gimple, type_change_info*, long int*)':
../../gcc/ipa-polymorphic-call.c:2117:1: error: assuming signed overflow does
not occur when assuming that (X + c) < X is always false
[-Werror=strict-overflow]
 }
 ^