https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103406
--- Comment #14 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- There is no reasonable definition of how operands of binary + map to particular operands of a particular instruction and so no -f or -m option could sensibly be defined for that. When the result is a NaN, there is no requirement at all on what (quiet) NaN it is (beyond a preference for preservation of the payload of a NaN operand if there is at least one NaN operand).
