https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77308
--- Comment #26 from Bernd Edlinger <bernd.edlinger at hotmail dot de> --- (In reply to wilco from comment #25) > > Alternatives can be disabled, there are flags, eg: > > (set_attr "arch" "neon_for_64bits,*,*,avoid_neon_for_64bits") > Ok I see, thanks. Still lots of insns could be simplified into less alternatives, when the attribs are identical of course. Doesn't that create smaller tables and use less memory to compile? > I think the NEON alternatives not only do not help at all, they actually > generate cause CQ to be far worse even when no NEON instructions are ever > generated. Yes. At least when not fpu is available, there can't possibly be any benefit from these insns. Sure there will be cases when the fpu instructions can improve something, just not here.
