[PATCH,RX] Support Bit Manipulation on Memory Operands

[Naveen H. S]

Hi,

Please find attached the patch "rx_bit_insn.patch" which supports bit
operations on memory operand. Please review the same and let me know
if there should be any modifications in it.

Tested with rx-elf. No new Regressions.
        
ChangeLog
2012-11-06  Naveen H.S  <navee...@kpitcummins.com>

        * config/rx/constraints.md (Uint03, Intu1, Intu0, Intsz, Intso): 
        New Constraints.
        * config/rx/predicates.md (rx_constbit_operand): New Predicates
        that allows value from 0 to 7.
        * gcc/config/rx/rx.c (print_operand): Add %D and %E operand codes
        for bit manipulations.
        * gcc/config/rx/rx.md (iorbset_mem, iorbset_reg, bset): New 
        instructions for setting a memory bit.
        (xorbnot_mem, xorbnot_reg): New instructions for inverting a memory
        bit.
        (andbclr_mem, andbclr_reg, bclr, insv_mem_imm): New instructions 
        for clearing a memory bit.
        (insv): Modify to support bit manipulation operations on memory 
        directly.

Thanks & Regards,
Naveen

rx_bit_insn.patch
Description: rx_bit_insn.patch