We can use general_operand instead of some_operand.

2015-05-13  Uros Bizjak  <ubizjak@gmail.com>

    * config/alpha/alpha.md (extendqidi2): Use general_operand
    instead of some_operand for operand[1] predicate.
    (extendhidi2): Ditto.
    (cbranchdi4): Use general_operand instead of some_operand
    for operand[1] and operands[2] predicates.
    (cstoredi4): Ditto.
    * config/alpha/predicates.md (some_operand): Remove unused predicate.
    (some_ni_operand): Ditto.

Tested on alpha-linux-gnu.

Richard, does this look OK to you, or is there any other reason that
general_operand predicates were not used here?

Uros.