On Tue, Jul 30, 2024 at 02:26:05PM +0200, Richard Biener wrote:
> > > (Which implies that we should introduce TARGET_I387_MATH to parallel
> > > TARGET_SSE_MATH some day...)
> > >
> > > > + default:
> > > > + return false;
> > >
> > > We don't want to enable HFmode for transfers?
>
> Jakub indicated that wouldn't be safe - is it?
I was worried about that, but in everything I've tried it actually looked ok
(both HFmode and BFmode).
*mov{hf,bf}_internal uses GPRs to move stuff (or SSE registers), in both
cases transferable.
And TFmode should be ok as well (i.e. IEEE quad, that shouldn't go through x87
either, it is software emulated).
Jakub
