@@ -14930,6 +14930,9 @@ assignments). This option is enabled by default for C or C++ if a strict
conformance option such as @option{-std=c99} or @option{-std=c++17} is used.
@option{-ffast-math} enables @option{-fexcess-precision=fast} by default
regardless of whether a strict conformance option is used.
+If @option{-fexcess-precision=16} is specified, constants and the
+results of expressions with types @code{_Float16} and @code{__bf16}
+are computed without excess precision.
@opindex mfpmath
@option{-fexcess-precision=standard} is not implemented for languages