https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108365
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work|6.1.0, 6.4.0 |
Known to fail| |6.1.0, 6.4.0
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #2)
> It is UB on ilp32, but for lp64 it should be well defined.
> Started with r9-1730-g9e392989053729d4d50
Then there is an older bug.
For the following C++ code:
constexpr char b = 1;
long t = (short) ((long long) (unsigned long long) (-__INT_MAX__ - 1) / (long
long) (b ? -1 : 0));
Should not produce any warnings but does, all the way back to GCC 6.1.0.
