https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88739
--- Comment #21 from Wilco <wilco at gcc dot gnu.org> --- (In reply to Eric Botcazou from comment #20) > > BITS_BIG_ENDIAN is just a convenience to the target code writer. The other > > four do matter, and are quite obvious really (and all four are necessary). > > Yes, I agree that BITS_BIG_ENDIAN shouldn't matter here, it's pure RTL stuff. Is it really pure RTL, therefore not used in tree? So the above patch using BITS_BIG_ENDIAN for tree stuff would be incorrect to use it?