This patch supports the following MVE ACLE load intrinsics which load a byte, halfword,
or word from memory.
vld1q_s8, vld1q_s32, vld1q_s16, vld1q_u8, vld1q_u32, vld1q_u16, vldrhq_gather_offset_s32,
vldrhq_gather_offset_s16, vldrhq_gather_offset_u32, vldrhq_gather_offset_u16,
vldrhq_gather_offset_z_s32, vldrhq_gather_offset_z_s16, vldrhq_gather_offset_z_u32,
vldrhq_gather_offset_z_u16, vldrhq_gather_shifted_offset_s32,vldrwq_f32, vldrwq_z_f32,
vldrhq_gather_shifted_offset_s16, vldrhq_gather_shifted_offset_u32,
vldrhq_gather_shifted_offset_u16, vldrhq_gather_shifted_offset_z_s32,
vldrhq_gather_shifted_offset_z_s16, vldrhq_gather_shifted_offset_z_u32,
vldrhq_gather_shifted_offset_z_u16, vldrhq_s32, vldrhq_s16, vldrhq_u32, vldrhq_u16,
vldrhq_z_s32, vldrhq_z_s16, vldrhq_z_u32, vldrhq_z_u16, vldrwq_s32, vldrwq_u32,
vldrwq_z_s32, vldrwq_z_u32, vld1q_f32, vld1q_f16, vldrhq_f16, vldrhq_z_f16.

Please refer to M-profile Vector Extension (MVE) intrinsics [1]  for more details.
[1]  https://developer.arm.com/architectures/instruction-sets/simd-isas/helium/mve-intrinsics

2020-03-18  Andre Vieira  <andre.simoesdiasvieira@arm.com>
            Mihail Ionescu  <mihail.ionescu@arm.com>
            Srinath Parvathaneni  <srinath.parvathaneni@arm.com>

	* config/arm/arm_mve.h (vld1q_s8): Define macro.
	(vld1q_s32): Likewise.
	(vld1q_s16): Likewise.
	(vld1q_u8): Likewise.
	(vld1q_u32): Likewise.
	(vld1q_u16): Likewise.
	(vldrhq_gather_offset_s32): Likewise.
	(vldrhq_gather_offset_s16): Likewise.
	(vldrhq_gather_offset_u32): Likewise.
	(vldrhq_gather_offset_u16): Likewise.
	(vldrhq_gather_offset_z_s32): Likewise.
	(vldrhq_gather_offset_z_s16): Likewise.
	(vldrhq_gather_offset_z_u32): Likewise.
	(vldrhq_gather_offset_z_u16): Likewise.
	(vldrhq_gather_shifted_offset_s32): Likewise.
	(vldrhq_gather_shifted_offset_s16): Likewise.
	(vldrhq_gather_shifted_offset_u32): Likewise.
	(vldrhq_gather_shifted_offset_u16): Likewise.
	(vldrhq_gather_shifted_offset_z_s32): Likewise.
	(vldrhq_gather_shifted_offset_z_s16): Likewise.
	(vldrhq_gather_shifted_offset_z_u32): Likewise.
	(vldrhq_gather_shifted_offset_z_u16): Likewise.
	(vldrhq_s32): Likewise.
	(vldrhq_s16): Likewise.
	(vldrhq_u32): Likewise.
	(vldrhq_u16): Likewise.
	(vldrhq_z_s32): Likewise.
	(vldrhq_z_s16): Likewise.
	(vldrhq_z_u32): Likewise.
	(vldrhq_z_u16): Likewise.
	(vldrwq_s32): Likewise.
	(vldrwq_u32): Likewise.
	(vldrwq_z_s32): Likewise.
	(vldrwq_z_u32): Likewise.
	(vld1q_f32): Likewise.
	(vld1q_f16): Likewise.
	(vldrhq_f16): Likewise.
	(vldrhq_z_f16): Likewise.
	(vldrwq_f32): Likewise.
	(vldrwq_z_f32): Likewise.
	(__arm_vld1q_s8): Define intrinsic.
	(__arm_vld1q_s32): Likewise.
	(__arm_vld1q_s16): Likewise.
	(__arm_vld1q_u8): Likewise.
	(__arm_vld1q_u32): Likewise.
	(__arm_vld1q_u16): Likewise.
	(__arm_vldrhq_gather_offset_s32): Likewise.
	(__arm_vldrhq_gather_offset_s16): Likewise.
	(__arm_vldrhq_gather_offset_u32): Likewise.
	(__arm_vldrhq_gather_offset_u16): Likewise.
	(__arm_vldrhq_gather_offset_z_s32): Likewise.
	(__arm_vldrhq_gather_offset_z_s16): Likewise.
	(__arm_vldrhq_gather_offset_z_u32): Likewise.
	(__arm_vldrhq_gather_offset_z_u16): Likewise.
	(__arm_vldrhq_gather_shifted_offset_s32): Likewise.
	(__arm_vldrhq_gather_shifted_offset_s16): Likewise.
	(__arm_vldrhq_gather_shifted_offset_u32): Likewise.
	(__arm_vldrhq_gather_shifted_offset_u16): Likewise.
	(__arm_vldrhq_gather_shifted_offset_z_s32): Likewise.
	(__arm_vldrhq_gather_shifted_offset_z_s16): Likewise.
	(__arm_vldrhq_gather_shifted_offset_z_u32): Likewise.
	(__arm_vldrhq_gather_shifted_offset_z_u16): Likewise.
	(__arm_vldrhq_s32): Likewise.
	(__arm_vldrhq_s16): Likewise.
	(__arm_vldrhq_u32): Likewise.
	(__arm_vldrhq_u16): Likewise.
	(__arm_vldrhq_z_s32): Likewise.
	(__arm_vldrhq_z_s16): Likewise.
	(__arm_vldrhq_z_u32): Likewise.
	(__arm_vldrhq_z_u16): Likewise.
	(__arm_vldrwq_s32): Likewise.
	(__arm_vldrwq_u32): Likewise.
	(__arm_vldrwq_z_s32): Likewise.
	(__arm_vldrwq_z_u32): Likewise.
	(__arm_vld1q_f32): Likewise.
	(__arm_vld1q_f16): Likewise.
	(__arm_vldrwq_f32): Likewise.
	(__arm_vldrwq_z_f32): Likewise.
	(__arm_vldrhq_z_f16): Likewise.
	(__arm_vldrhq_f16): Likewise.
	(vld1q): Define polymorphic variant.
	(vldrhq_gather_offset): Likewise.
	(vldrhq_gather_offset_z): Likewise.
	(vldrhq_gather_shifted_offset): Likewise.
	(vldrhq_gather_shifted_offset_z): Likewise.
	* config/arm/arm_mve_builtins.def (LDRU): Use builtin qualifier.
	(LDRS): Likewise.
	(LDRU_Z): Likewise.
	(LDRS_Z): Likewise.
	(LDRGU_Z): Likewise.
	(LDRGU): Likewise.
	(LDRGS_Z): Likewise.
	(LDRGS): Likewise.
	* config/arm/mve.md (MVE_H_ELEM): Define mode iterator.
	(V_sz_elem1): Likewise.
	(VLD1Q): Define iterator.
	(VLDRHGOQ): Likewise.
	(VLDRHGSOQ): Likewise.
	(VLDRHQ): Likewise.
	(VLDRWQ): Likewise.
	(mve_vldrhq_fv8hf): Define RTL pattern.
	(mve_vldrhq_gather_offset_<supf><mode>): Likewise.
	(mve_vldrhq_gather_offset_z_<supf><mode>): Likewise.
	(mve_vldrhq_gather_shifted_offset_<supf><mode>): Likewise.
	(mve_vldrhq_gather_shifted_offset_z_<supf><mode>): Likewise.
	(mve_vldrhq_<supf><mode>): Likewise.
	(mve_vldrhq_z_fv8hf): Likewise.
	(mve_vldrhq_z_<supf><mode>): Likewise.
	(mve_vldrwq_fv4sf): Likewise.
	(mve_vldrwq_<supf>v4si): Likewise.
	(mve_vldrwq_z_fv4sf): Likewise.
	(mve_vldrwq_z_<supf>v4si): Likewise.
	(mve_vld1q_f<mode>): Define RTL expand pattern.
	(mve_vld1q_<supf><mode>): Likewise.

gcc/testsuite/ChangeLog:

2020-03-18  Andre Vieira  <andre.simoesdiasvieira@arm.com>
            Mihail Ionescu  <mihail.ionescu@arm.com>
            Srinath Parvathaneni  <srinath.parvathaneni@arm.com>

	* gcc.target/arm/mve/intrinsics/vld1q_f16.c: New test.
	* gcc.target/arm/mve/intrinsics/vld1q_f32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vld1q_s16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vld1q_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vld1q_s8.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vld1q_u16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vld1q_u32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vld1q_u8.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_f16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_gather_offset_s16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_gather_offset_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_gather_offset_u16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_gather_offset_u32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_gather_offset_z_s16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_gather_offset_z_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_gather_offset_z_u16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_gather_offset_z_u32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_gather_shifted_offset_s16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_gather_shifted_offset_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_gather_shifted_offset_u16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_gather_shifted_offset_u32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_gather_shifted_offset_z_s16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_gather_shifted_offset_z_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_gather_shifted_offset_z_u16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_gather_shifted_offset_z_u32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_s16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_u16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_u32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_z_f16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_z_s16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_z_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_z_u16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrhq_z_u32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrwq_f32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrwq_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrwq_u32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrwq_z_f32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrwq_z_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vldrwq_z_u32.c: Likewise.