re PR target/35294 (iwmmxt intrinsics, internal compiler error)

re PR target/35294 (iwmmxt intrinsics, internal compiler error)

	* doc/extend.texi (__builtin_arm_tinsrb): Add missing second
	parameter.
	(__builtin_arm_tinsrh): Likewise.
	(__builtin_arm_tinsrw): Likewise.
	(__builtin_arm_wsadb): Add missing v2si parameter.
	(__builtin_arm_wsadh): Likewise.
	(__builtin_arm_getwcx): Delete.
	(__builtin_arm_setwcx): Delete.
	(__builtin_arm_getwcgr0): Add.
	(__builtin_arm_getwcgr1): Add.
	(__builtin_arm_getwcgr2): Add.
	(__builtin_arm_getwcgr3): Add.
	(__builtin_arm_setwcgr0): Add.
	(__builtin_arm_setwcgr1): Add.
	(__builtin_arm_setwcgr2): Add.
	(__builtin_arm_setwcgr3): Add.

	PR target/35294
	* gcc.target/arm/mmx-2.c: New.

From-SVN: r188988