[Bug middle-end/80692] _Decimal64 -0 != 0 unless optimization is turned off

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80692

Segher Boessenkool <segher at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |8.0

--- Comment #4 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Fixed on trunk; still needs backports.