[PATCH 5/14][AArch64] Use new reduc_[us](min|max)_scal optabs, inc. for builtins

Alan Lawrence alan.lawrence@arm.com
Thu Sep 18 12:02:00 GMT 2014

Similarly to the previous patch (r/2205), this migrates AArch64 to the new 
reduce-to-scalar optabs for min and max. For consistency we apply the same 
treatment to the smax_nan and smin_nan patterns (used for __builtins), even 
though reduc_smin_nan_scal (etc.) is not a standard name.

Tested: check-gcc on aarch64-none-elf and aarch64_be-none-elf.


	* 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.
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