On Tue, Mar 19, 2024 at 12:16 AM Joseph Myers <josmy...@redhat.com> wrote:
>
> On Mon, 18 Mar 2024, liuhongt wrote:
>
> > +If @option{-fexcess-precision=16} is specified, casts and assignments of
> > +@code{_Float16} and @code{bfloat16_t} cause value to be rounded to their
> > +semantic types if they're supported by the target.
>
> Isn't that option about rounding results of all operations, whether or not
> a cast or assignment is involved? That's certainly what the brief mention
> of this option in extend.texi says, and fits the intent that
> -fexcess-precision=16 corresponds to FLT_EVAL_METHOD == 16.
Yes, how about this.
+If @option{-fexcess-precision=16} is specified, each operation of
+@code{_Float16} and @code{bfloat16_t} causes value to be rounded to their
+semantic types if they're supported by the target.
>
> --
> Joseph S. Myers
> josmy...@redhat.com
>
--
BR,
Hongtao
