Mike Stump <[EMAIL PROTECTED]> writes:
> Forgive me ignorance, is there is use for the use of the label below?
>
> From rs6000, though, certainly there are other examples of this sort
> of thing in the md files:
>
> (define_insn ""
> [(set (pc)
> (match_operand:P 0 "register_operand" "c,*l"))
> (use (label_ref (match_operand 1 "" "")))]
> ""
> "@
> bctr
> {br|blr}"
> [(set_attr "type" "jmpreg")])
This is an instantiation of a tablejump created via define_expand.
Operand 1 is the jump table. The insn needs to refer to it, or the
table will be deleted as unreferenced.
Ian
