[ARM][GCC][8/5x]: Remaining MVE store intrinsics which stores an half word, word and double word to memory.

This patch supports the following MVE ACLE store intrinsics which stores an halfword, word or double word to memory.

vstrdq_scatter_base_p_s64, vstrdq_scatter_base_p_u64, vstrdq_scatter_base_s64, vstrdq_scatter_base_u64, vstrdq_scatter_offset_p_s64, vstrdq_scatter_offset_p_u64, vstrdq_scatter_offset_s64, vstrdq_scatter_offset_u64, vstrdq_scatter_shifted_offset_p_s64,
vstrdq_scatter_shifted_offset_p_u64, vstrdq_scatter_shifted_offset_s64,
vstrdq_scatter_shifted_offset_u64, vstrhq_scatter_offset_f16, vstrhq_scatter_offset_p_f16, vstrhq_scatter_shifted_offset_f16, vstrhq_scatter_shifted_offset_p_f16,
vstrwq_scatter_base_f32, vstrwq_scatter_base_p_f32, vstrwq_scatter_offset_f32, vstrwq_scatter_offset_p_f32, vstrwq_scatter_offset_p_s32, vstrwq_scatter_offset_p_u32, vstrwq_scatter_offset_s32, vstrwq_scatter_offset_u32, vstrwq_scatter_shifted_offset_f32,
vstrwq_scatter_shifted_offset_p_f32, vstrwq_scatter_shifted_offset_p_s32,
vstrwq_scatter_shifted_offset_p_u32, vstrwq_scatter_shifted_offset_s32,
vstrwq_scatter_shifted_offset_u32.

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

In this patch a new predicate "Ri" is defined to check the immediate is in the range of +/-1016 and multiple of 8.

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 (vstrdq_scatter_base_p_s64): Define macro.
	(vstrdq_scatter_base_p_u64): Likewise.
	(vstrdq_scatter_base_s64): Likewise.
	(vstrdq_scatter_base_u64): Likewise.
	(vstrdq_scatter_offset_p_s64): Likewise.
	(vstrdq_scatter_offset_p_u64): Likewise.
	(vstrdq_scatter_offset_s64): Likewise.
	(vstrdq_scatter_offset_u64): Likewise.
	(vstrdq_scatter_shifted_offset_p_s64): Likewise.
	(vstrdq_scatter_shifted_offset_p_u64): Likewise.
	(vstrdq_scatter_shifted_offset_s64): Likewise.
	(vstrdq_scatter_shifted_offset_u64): Likewise.
	(vstrhq_scatter_offset_f16): Likewise.
	(vstrhq_scatter_offset_p_f16): Likewise.
	(vstrhq_scatter_shifted_offset_f16): Likewise.
	(vstrhq_scatter_shifted_offset_p_f16): Likewise.
	(vstrwq_scatter_base_f32): Likewise.
	(vstrwq_scatter_base_p_f32): Likewise.
	(vstrwq_scatter_offset_f32): Likewise.
	(vstrwq_scatter_offset_p_f32): Likewise.
	(vstrwq_scatter_offset_p_s32): Likewise.
	(vstrwq_scatter_offset_p_u32): Likewise.
	(vstrwq_scatter_offset_s32): Likewise.
	(vstrwq_scatter_offset_u32): Likewise.
	(vstrwq_scatter_shifted_offset_f32): Likewise.
	(vstrwq_scatter_shifted_offset_p_f32): Likewise.
	(vstrwq_scatter_shifted_offset_p_s32): Likewise.
	(vstrwq_scatter_shifted_offset_p_u32): Likewise.
	(vstrwq_scatter_shifted_offset_s32): Likewise.
	(vstrwq_scatter_shifted_offset_u32): Likewise.
	(__arm_vstrdq_scatter_base_p_s64): Define intrinsic.
	(__arm_vstrdq_scatter_base_p_u64): Likewise.
	(__arm_vstrdq_scatter_base_s64): Likewise.
	(__arm_vstrdq_scatter_base_u64): Likewise.
	(__arm_vstrdq_scatter_offset_p_s64): Likewise.
	(__arm_vstrdq_scatter_offset_p_u64): Likewise.
	(__arm_vstrdq_scatter_offset_s64): Likewise.
	(__arm_vstrdq_scatter_offset_u64): Likewise.
	(__arm_vstrdq_scatter_shifted_offset_p_s64): Likewise.
	(__arm_vstrdq_scatter_shifted_offset_p_u64): Likewise.
	(__arm_vstrdq_scatter_shifted_offset_s64): Likewise.
	(__arm_vstrdq_scatter_shifted_offset_u64): Likewise.
	(__arm_vstrwq_scatter_offset_p_s32): Likewise.
	(__arm_vstrwq_scatter_offset_p_u32): Likewise.
	(__arm_vstrwq_scatter_offset_s32): Likewise.
	(__arm_vstrwq_scatter_offset_u32): Likewise.
	(__arm_vstrwq_scatter_shifted_offset_p_s32): Likewise.
	(__arm_vstrwq_scatter_shifted_offset_p_u32): Likewise.
	(__arm_vstrwq_scatter_shifted_offset_s32): Likewise.
	(__arm_vstrwq_scatter_shifted_offset_u32): Likewise.
	(__arm_vstrhq_scatter_offset_f16): Likewise.
	(__arm_vstrhq_scatter_offset_p_f16): Likewise.
	(__arm_vstrhq_scatter_shifted_offset_f16): Likewise.
	(__arm_vstrhq_scatter_shifted_offset_p_f16): Likewise.
	(__arm_vstrwq_scatter_base_f32): Likewise.
	(__arm_vstrwq_scatter_base_p_f32): Likewise.
	(__arm_vstrwq_scatter_offset_f32): Likewise.
	(__arm_vstrwq_scatter_offset_p_f32): Likewise.
	(__arm_vstrwq_scatter_shifted_offset_f32): Likewise.
	(__arm_vstrwq_scatter_shifted_offset_p_f32): Likewise.
	(vstrhq_scatter_offset): Define polymorphic variant.
	(vstrhq_scatter_offset_p): Likewise.
	(vstrhq_scatter_shifted_offset): Likewise.
	(vstrhq_scatter_shifted_offset_p): Likewise.
	(vstrwq_scatter_base): Likewise.
	(vstrwq_scatter_base_p): Likewise.
	(vstrwq_scatter_offset): Likewise.
	(vstrwq_scatter_offset_p): Likewise.
	(vstrwq_scatter_shifted_offset): Likewise.
	(vstrwq_scatter_shifted_offset_p): Likewise.
	(vstrdq_scatter_base_p): Likewise.
	(vstrdq_scatter_base): Likewise.
	(vstrdq_scatter_offset_p): Likewise.
	(vstrdq_scatter_offset): Likewise.
	(vstrdq_scatter_shifted_offset_p): Likewise.
	(vstrdq_scatter_shifted_offset): Likewise.
	* config/arm/arm_mve_builtins.def (STRSBS): Use builtin qualifier.
	(STRSBS_P): Likewise.
	(STRSBU): Likewise.
	(STRSBU_P): Likewise.
	(STRSS): Likewise.
	(STRSS_P): Likewise.
	(STRSU): Likewise.
	(STRSU_P): Likewise.
	* config/arm/constraints.md (Ri): Define.
	* config/arm/mve.md (VSTRDSBQ): Define iterator.
	(VSTRDSOQ): Likewise.
	(VSTRDSSOQ): Likewise.
	(VSTRWSOQ): Likewise.
	(VSTRWSSOQ): Likewise.
	(mve_vstrdq_scatter_base_p_<supf>v2di): Define RTL pattern.
	(mve_vstrdq_scatter_base_<supf>v2di): Likewise.
	(mve_vstrdq_scatter_offset_p_<supf>v2di): Likewise.
	(mve_vstrdq_scatter_offset_<supf>v2di): Likewise.
	(mve_vstrdq_scatter_shifted_offset_p_<supf>v2di): Likewise.
	(mve_vstrdq_scatter_shifted_offset_<supf>v2di): Likewise.
	(mve_vstrhq_scatter_offset_fv8hf): Likewise.
	(mve_vstrhq_scatter_offset_p_fv8hf): Likewise.
	(mve_vstrhq_scatter_shifted_offset_fv8hf): Likewise.
	(mve_vstrhq_scatter_shifted_offset_p_fv8hf): Likewise.
	(mve_vstrwq_scatter_base_fv4sf): Likewise.
	(mve_vstrwq_scatter_base_p_fv4sf): Likewise.
	(mve_vstrwq_scatter_offset_fv4sf): Likewise.
	(mve_vstrwq_scatter_offset_p_fv4sf): Likewise.
	(mve_vstrwq_scatter_offset_p_<supf>v4si): Likewise.
	(mve_vstrwq_scatter_offset_<supf>v4si): Likewise.
	(mve_vstrwq_scatter_shifted_offset_fv4sf): Likewise.
	(mve_vstrwq_scatter_shifted_offset_p_fv4sf): Likewise.
	(mve_vstrwq_scatter_shifted_offset_p_<supf>v4si): Likewise.
	(mve_vstrwq_scatter_shifted_offset_<supf>v4si): Likewise.
	* config/arm/predicates.md (Ri): Define predicate to check immediate
	is the range +/-1016 and multiple of 8.

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/vstrdq_scatter_base_p_s64.c: New test.
	* gcc.target/arm/mve/intrinsics/vstrdq_scatter_base_p_u64.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vstrdq_scatter_base_s64.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vstrdq_scatter_base_u64.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vstrdq_scatter_offset_p_s64.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vstrdq_scatter_offset_p_u64.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vstrdq_scatter_offset_s64.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vstrdq_scatter_offset_u64.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vstrdq_scatter_shifted_offset_p_s64.c:
	Likewise.
	* gcc.target/arm/mve/intrinsics/vstrdq_scatter_shifted_offset_p_u64.c:
	Likewise.
	* gcc.target/arm/mve/intrinsics/vstrdq_scatter_shifted_offset_s64.c:
	Likewise.
	* gcc.target/arm/mve/intrinsics/vstrdq_scatter_shifted_offset_u64.c:
	Likewise.
	* gcc.target/arm/mve/intrinsics/vstrhq_scatter_offset_f16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vstrhq_scatter_offset_p_f16.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vstrhq_scatter_shifted_offset_f16.c:
	Likewise.
	* gcc.target/arm/mve/intrinsics/vstrhq_scatter_shifted_offset_p_f16.c:
	Likewise.
	* gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_f32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vstrwq_scatter_base_p_f32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_f32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_f32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_p_u32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_s32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vstrwq_scatter_offset_u32.c: Likewise.
	* gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_f32.c:
	Likewise.
	* gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_f32.c:
	Likewise.
	* gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_s32.c:
	Likewise.
	* gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_p_u32.c:
	Likewise.
	* gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_s32.c:
	Likewise.
	* gcc.target/arm/mve/intrinsics/vstrwq_scatter_shifted_offset_u32.c:
	Likewise.

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