* pa.c (hppa_legitimize_address): Don't lose for
        (plus (plus (mult (A) (shadd_const)) (B)) (C)) if
        B + C isn't a valid address for indexing.
        (basereg_operand): Only accept base registers after
        cse has completed.  Don't accept the frame pointer if
        it's likely to be eliminated.
        * pa.md (unscaled indexing patterns): Add variants with
        basereg and index register reversed.
        (HImode and QImode loads): Add zero extended variants.

From-SVN: r11625