https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98251
nsz at gcc dot gnu.org changed:
What |Removed |Added
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CC| |nsz at gcc dot gnu.org
--- Comment #1 from nsz at gcc dot gnu.org ---
i believe ieee-754 only specifies the sign bit of a
nan after copy, negate, abs and copysign operations.
iso c does not specify further requirements about
the sign bit of a nan either.
so i think gcc should not assume that conversions
preserve the sign bit. (there may be real hw where
that is not the case, independently from what libgcc
is doing.)
