[AArch64] [3/4 Fix vtbx1]Implement bsl intrinsics using builtins

[AArch64] [3/4 Fix vtbx1]Implement bsl intrinsics using builtins

gcc/
	* config/aarch64/aarch64-builtins.c
	(aarch64_types_bsl_p_qualifiers): New.
	(aarch64_types_bsl_s_qualifiers): Likewise.
	(aarch64_types_bsl_u_qualifiers): Likewise.
	(TYPES_BSL_P): Likewise.
	(TYPES_BSL_S): Likewise.
	(TYPES_BSL_U): Likewise.
	(BUILTIN_VALLDIF): Likewise.
	(BUILTIN_VDQQH): Likewise.
	* config/aarch64/aarch64-simd-builtins.def (simd_bsl): New.
	* config/aarch64/aarch64-simd.md
	(aarch64_simd_bsl<mode>_internal): Handle more modes.
	(aarch64_simd_bsl<mode>): Likewise.
	* config/aarch64/arm_neon.h
	(vbsl<q>_<fpsu><8,16,32,64): Implement using builtins.
	* config/aarch64/iterators.md (VALLDIF): New.
	(Vbtype): Handle more modes.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@205385 138bc75d-0d04-0410-961f-82ee72b054a4