* gas/arm/arm.exp: Add archv6 and thumbv6.

	* gas/arm/arm.exp: Add archv6 and thumbv6.
	* gas/arm/archv6.d: New file.
	* gas/arm/archv6.s: Likewise.
	* gas/arm/thumbv6.d: Likewise.
	* gas/arm/thumbv6.s: Likewise.

	Add V6 support.
	* config/tc-arm.c (ARM_EXT_V6): New macro.
	(ARM_ARCH_V6): Likewise.
	(SHIFT_IMMEDIATE): Likewise.
	(SHIFT_LSL_OR_ASR_IMMEDIATE): Likewise.
	(SHIFT_ASR_IMMEDIATE): Likewise.
	(SHIFT_LSL_IMMMEDIATE): Likewise.
	(do_cps): New function.
	(do_cpsi): Likewise.
	(do_ldrex): Likewise.
	(do_pkhbt): Likewise.
	(do_pkhtb): Likewise.
	(do_qadd16): Likewise.
	(do_rev): Likewise.
	(do_rfe): Likewise.
	(do_sxtah): Likewise.
	(do_sxth): Likewise.
	(do_setend): Likewise.
	(do_smlad): Likewise.
	(do_smlald): Likewise.
	(do_smmul): Likewise.
	(do_ssat): Likewise.
	(do_usat): Likewise.
	(do_srs): Likewise.
	(do_ssat16): Likewise.
	(do_usat16): Likewise.
	(do_strex): Likewise.
	(do_umaal): Likewise.
	(do_cps_mode): Likewise.
	(do_cps_flags): Likewise.
	(do_endian_specifier): Likewise.
	(do_pkh_core): Likewise.
	(do_sat): Likewise.
	(do_sat16): Likewise.
	(insns): Add V6 instructions.
	(do_t_cps): New function.
	(do_t_cpy): Likewise.
	(do_t_setend): Likewise.
	(THUMB_CPY): New macro.
	(tinsns): Add V6 instructions.
	(decode_shift): Handle V6 restricted-shift options.
	(thumb_mov_compare): Support CPY.
	(arm_cores): Add arm1136js and arm1136jfs.
	(arm_archs): Add armv6.
	(arm_fpus): Add arm1136jfs.
	* doc/c-arm.texi (ARM Options): Mention arm1136js, arm1136jfs, and
	armv6 options.

	* gas/arm/arm.exp: Add archv6 and thumbv6.
	* gas/arm/archv6.d: New file.
	* gas/arm/archv6.s: Likewise.
	* gas/arm/thumbv6.d: Likewise.
	* gas/arm/thumbv6.s: Likewise.

	* arm-dis.c (print_arm_insn): Add 'W' macro.
	* arm-opc.h (arm_opcodes): Add V6 instructions.
	(thumb_opcodes): Likewise.