[Bug target/67771] integer-to-floating-point conversions wrongly produce -0 in FE_DOWNWARD mode

[jsm28 at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67771

--- Comment #5 from Joseph S. Myers <jsm28 at gcc dot gnu.org> ---
Various glibc functions work around this using FIX_INT_FP_CONVERT_ZERO, I
suppose the new log10f implementation taken from CORE-MATH needs such a
workaround as well.