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

[glaubitz at physik dot fu-berlin.de via Gcc-bugs]

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

--- Comment #6 from John Paul Adrian Glaubitz <glaubitz at physik dot 
fu-berlin.de> ---
(In reply to Joseph S. Myers from comment #5)
> 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.

@Adhemerval: Do you think you could add such a workaround for 32-bit PowerPC?