[AArch64] Use new reduc_plus_scal optabs, inc. for __builtins

	* config/aarch64/aarch64-simd-builtins.def
	(reduc_splus_<mode>/VDQF, reduc_uplus_<mode>/VDQF, reduc_splus_v4sf):
	Remove.
	(reduc_plus_scal_<mode>, reduc_plus_scal_v4sf): New.

	* config/aarch64/aarch64-simd.md (reduc_<sur>plus_mode): Remove.
	(reduc_splus_<mode>, reduc_uplus_<mode>, reduc_plus_scal_<mode>): New.

	(reduc_<sur>plus_mode): Change SUADDV -> UNSPEC_ADDV, rename to...
	(aarch64_reduc_plus_internal<mode>): ...this.

	(reduc_<sur>plus_v2si): Change SUADDV -> UNSPEC_ADDV, rename to...
	(aarch64_reduc_plus_internalv2si): ...this.

	(reduc_splus_<mode>/V2F): Rename to...
	(aarch64_reduc_plus_internal<mode>): ...this.

	* config/aarch64/iterators.md
	(UNSPEC_SADDV, UNSPEC_UADDV, SUADDV): Remove.
	(UNSPEC_ADDV): New.
	(sur): Remove elements for UNSPEC_SADDV and UNSPEC_UADDV.

	* config/aarch64/arm_neon.h (vaddv_s8, vaddv_s16, vaddv_s32, vaddv_u8,
	vaddv_u16, vaddv_u32, vaddvq_s8, vaddvq_s16, vaddvq_s32, vaddvq_s64,
	vaddvq_u8, vaddvq_u16, vaddvq_u32, vaddvq_u64, vaddv_f32, vaddvq_f32,
	vaddvq_f64): Change __builtin_aarch64_reduc_[us]plus_... to
	__builtin_aarch64_reduc_plus_scal, remove vget_lane wrapper.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216738 138bc75d-0d04-0410-961f-82ee72b054a4
	* MAINTAINTERS: Change my email address.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216739 138bc75d-0d04-0410-961f-82ee72b054a4
[AArch64] Use new reduc_[us](min|max)_scal optabs, inc. for builtins

	* config/aarch64/aarch64-simd-builtins.def (reduc_smax_, reduc_smin_,
	reduc_umax_, reduc_umin_, reduc_smax_nan_, reduc_smin_nan_): Remove.
	(reduc_smax_scal_, reduc_smin_scal_, reduc_umax_scal_,
	reduc_umin_scal_, reduc_smax_nan_scal_, reduc_smin_nan_scal_): New.

	* config/aarch64/aarch64-simd.md
	(reduc_<maxmin_uns>_<mode>): Rename VDQV_S variant to...
	(reduc_<maxmin_uns>_internal<mode>): ...this.
	(reduc_<maxmin_uns>_<mode>): New (VDQ_BHSI).
	(reduc_<maxmin_uns>_scal_<mode>): New (*2).

	(reduc_<maxmin_uns>_v2si): Combine with below, renaming...
	(reduc_<maxmin_uns>_<mode>): Combine V2F with above, renaming...
	(reduc_<maxmin_uns>_internal_<mode>): ...to this (VDQF).

	* config/aarch64/arm_neon.h (vmaxv_f32, vmaxv_s8, vmaxv_s16,
	vmaxv_s32, vmaxv_u8, vmaxv_u16, vmaxv_u32, vmaxvq_f32, vmaxvq_f64,
	vmaxvq_s8, vmaxvq_s16, vmaxvq_s32, vmaxvq_u8, vmaxvq_u16, vmaxvq_u32,
	vmaxnmv_f32, vmaxnmvq_f32, vmaxnmvq_f64, vminv_f32, vminv_s8,
	vminv_s16, vminv_s32, vminv_u8, vminv_u16, vminv_u32, vminvq_f32,
	vminvq_f64, vminvq_s8, vminvq_s16, vminvq_s32, vminvq_u8, vminvq_u16,
	vminvq_u32, vminnmv_f32, vminnmvq_f32, vminnmvq_f64): Update to use
	__builtin_aarch64_reduc_..._scal; remove vget_lane wrapper.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216741 138bc75d-0d04-0410-961f-82ee72b054a4
[AArch64] Restore gimple_folding of reduction intrinsics

	* config/aarch64/aarch64.c (TARGET_GIMPLE_FOLD_BUILTIN): Define again.
	* config/aarch64/aarch64-builtins.c (aarch64_gimple_fold_builtin):
	Restore, enable for bigendian, update to use __builtin..._scal...


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@216742 138bc75d-0d04-0410-961f-82ee72b054a4