[PATCH][ARM][GAS] Add support for CRC instructions in ARMv8

[nick clifton]

Hi Kyrylo,

> gas/ChangeLog
> 2013-02-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
>
> 	* config/tc-arm.c (crc_ext_armv8): New feature set.
> 	(UNPRED_REG): New macro.
> 	(do_crc32_1): New function.
> 	(do_crc32b, do_crc32h, do_crc32w, do_crc32cb,
> 	do_crc32ch, do_crc32cw): Likewise.
> 	(TUEc): New macro.
> 	(insns): Add entries for crc32 mnemonics.
> 	(arm_extensions): Add entry for crc.
>
>
> include/opcode/ChangeLog
> 2013-02-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
>
> 	* arm.h (CRC_EXT_ARMV8): New constant.
> 	(ARCH_CRC_ARMV8): New macro.
>
>
> opcodes/ChangeLog
> 2013-02-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
>
> 	* arm-dic.c (arm_opcodes): Add entries for CRC instructions.
> 	(thumb32_opcodes): Likewise.
> 	(print_insn_thumb32): Handle 'S' control char.
>
>
> gas/testsuite/ChangeLog
> 2013-02-27  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
>
> 	* gas/arm/crc32-bad.d: New file.
> 	* gas/arm/crc32-bad.l: Likewise.
> 	* gas/arm/crc32-bad.s: Likewise.
> 	* gas/arm/crc32.d: Likewise.
> 	* gas/arm/crc32.s: Likewise.

Approved - please apply.

Cheers
   Nick