predicate forward references (Was: Re: RFA: Add Epiphany port)

[Joern Rennecke]

Quoting Richard Henderson <rth@redhat.com>:

>> (define_predicate "call_address_operand"
>>   (match_code "symbol_ref,const,reg")
>> {
>>   return (symbolic_operand (op, mode) || (GET_CODE (op) == REG));
>> })
>
> Nit.
>
> (define_predicate "call_address_operand"
>   (ior (match_code "reg")
>        (match_operand 0 "symbolic_operand")))

It doesn't like the predicates in their original order this way - it  
complains:
../../srcw/gcc/config/epiphany/predicates.md:25: reference to unknown  
predicate 'symbolic_operand'

Is there a way to have a predicate forward declaration?