what does -fsignaling-nans mean with -ffinite-math-only supplied also?

[Andrew Pinski (QUIC) via Gcc]

So looking into https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121448, I Noticed 
the options needed to hit this is `-fsignaling-nans -ffinite-math-only`. These 
2 options seems contradictory. Should -ffinite-math-only turn off signaling 
nans? Give a warning or something else?

Thanks,
Andrew