[PATCH] Fortran 2018 rounding modes changes

[FX]

Follow-up patch, including a test, committed as attached.

FX

-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0001-Fortran-handle-RADIX-kind-in-IEEE_SET_ROUNDING_MODE.patch
Type: application/octet-stream
Size: 2881 bytes
Desc: not available
URL: <https://gcc.gnu.org/pipermail/fortran/attachments/20220921/022ffc46/attachment.obj>