https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77308
--- Comment #34 from Bernd Edlinger <bernd.edlinger at hotmail dot de> ---
(In reply to Richard Earnshaw from comment #33)
> (In reply to Wilco from comment #32)
> > (In reply to Bernd Edlinger from comment #31)
> > > Furthermore, if I want to do -Os the third condition is FALSE too.
> > > But one ldrd must be shorter than two ldr ?
> > >
> > > That seems wrong...
> >
> > Indeed, on a target that supports LDRD you want to use LDRD if legal. LDM
> > should only be tried on Thumb-1. Emitting LDRD from a peephole when the
> > offset is in range will never increase code size so should always be
> > enabled.
>
> The logic is certainly strange. Some cores run LDRD less quickly than they
> can do LDM, or even two independent loads. I suspect the logic is meant to
> be: use LDRD if available and not (optimizing for speed on a slow
> LDRD-device).
Ok, so instead of removing this completely I should change it to:
TARGET_LDRD
&& (current_tune->prefer_ldrd_strd
|| optimize_function_for_size_p (cfun))
