Georg Lay writes:
> roy rosen schrieb:
>> What might be the problem here?
>
> Define and use proper constraint(s).
Right. doloop_end is a notoriously difficult case though, because jump
insns aren't allowed to have output reloads. Something like:
(define_insn "doloop_end_internal"
[(set (pc)
roy rosen schrieb:
> Hi All,
>
> If I don't use a constraint, is it possible that during ira I get a
> register which is not acceptable by the predicate?
> In my port I have the following to support HW loops:
>
> (define_predicate "lc_operand"
> (match_operand 0 "register_operand")
> {
>
I haven't mentioned that I am using gcc 4.6 latest version.
To generalize the question. If I use an operand like lc_operand
(below) and leave the constraint open, is it guaranteed that the
register that would be chosen would be of class lc?
2010/8/3 roy rosen :
> Hi All,
>
> If I don't use a const
Hi All,
If I don't use a constraint, is it possible that during ira I get a
register which is not acceptable by the predicate?
In my port I have the following to support HW loops:
(define_predicate "lc_operand"
(match_operand 0 "register_operand")
{
unsigned int regno;
if (GET
