> Could you make the expander handle it, instead? It's as simple as (after
> the double-reg thing) add "if operands[1] is reg 0, force_reg operands[2]".
> I'll do it if you prefer.
Probably, because I'm not sure how this can work, as you cannot create new
pseudos here.
> [ the patch is broken here ]
It applies just fine for me though. But it could probably use add_operand
instead of satisfies_constraint_I in the condition.
> > /* { dg-do compile } */
> > /* { dg-options "-fstack-limit-register=r2" } */
>
> Please use a different register, r2 already has different functions in
> most ABIs. It *probably* will compile anyway, but :-)
It's a straight copy of gcc.target/powerpc/pr48344-1.c though.
--
Eric Botcazou
