[Bug middle-end/86995] [9 regression] c-c++-common/torture/builtin-arith-overflow-17.c etc. FAIL

[vladlazar at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86995

vladlazar at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |vladlazar at gcc dot gnu.org
         Resolution|---                         |FIXED

--- Comment #8 from vladlazar at gcc dot gnu.org ---
Fixed by r263973. The issue was that in case of underflow, the overflow flag
was not set. The solution was to use wi::sub when decrementing.