(output_block_move): Prefer addl to add.
(print_operand): Print fp regs with L suffix when appropriate.
(output_arg_descriptor): Rewrite to accomodate new convention for
USE information.
(compute_frame_size): Update for changed register numbers.
Simplify loops over general registers to stop at register 4.
(hppa_expand_prologue): Likewise.
(hppa_expand_epilogue): Likewise.

From-SVN: r7411