On 01/11/2012 10:39 PM, Nick Clifton wrote:
> +(define_expand "return"
> + [(return)]
> + ""
> + "rx_expand_epilogue (false); DONE;"
> +)
Not an ideal solution, since the availability of this pattern implies
it's extremely cheap, and we'll replace jumps to the epilogue with
this pattern.
A hack-around might be
(define_expand "return"
[(return)]
"false"
{ gcc_unreachable (); })
Or to define an availability predicate similar to i386, testing if
the epilogue is trivial, and only a return insn is needed.
r~
