[Arm64] LoadPairVector64 and LoadPairVector128

[echesakov]

namespace System.Runtime.Intrinsics.Arm
{
    public static class AdvSimd
    {
        public static unsafe (Vector64<byte> Value1,    Vector64<byte> Value2)    LoadPairVector64(byte*   address);
        public static unsafe (Vector64<sbyte> Value1,   Vector64<sbyte> Value2)   LoadPairVector64(sbyte*  address);
        public static unsafe (Vector64<short> Value1,   Vector64<short> Value2)   LoadPairVector64(short*  address);
        public static unsafe (Vector64<ushort> Value1,  Vector64<ushort> Value2)  LoadPairVector64(ushort* address);
        public static unsafe (Vector64<int> Value1,     Vector64<int> Value2)     LoadPairVector64(int*    address);
        public static unsafe (Vector64<uint> Value1,    Vector64<uint> Value2)    LoadPairVector64(uint*   address);
        public static unsafe (Vector64<float> Value1,   Vector64<float> Value2)   LoadPairVector64(float*  address);

        public static unsafe (Vector128<byte> Value1,   Vector128<byte> Value2)   LoadPairVector128(byte*   address);
        public static unsafe (Vector128<sbyte> Value1,  Vector128<sbyte> Value2)  LoadPairVector128(sbyte*  address);
        public static unsafe (Vector128<short> Value1,  Vector128<short> Value2)  LoadPairVector128(short*  address);
        public static unsafe (Vector128<ushort> Value1, Vector128<ushort> Value2) LoadPairVector128(ushort* address);
        public static unsafe (Vector128<int> Value1,    Vector128<int> Value2)    LoadPairVector128(int*    address);
        public static unsafe (Vector128<uint> Value1,   Vector128<uint> Value2)   LoadPairVector128(uint*   address);
        public static unsafe (Vector128<long> Value1,   Vector128<long> Value2)   LoadPairVector128(long*   address);
        public static unsafe (Vector128<ulong> Value1,  Vector128<ulong> Value2)  LoadPairVector128(ulong*  address);
        public static unsafe (Vector128<float> Value1,  Vector128<float> Value2)  LoadPairVector128(float*  address);

        public static unsafe (Vector64<int> Value1,     Vector64<int> Value2)     LoadPairScalarVector64(int*  address);
        public static unsafe (Vector64<uint> Value1,    Vector64<uint> Value2)    LoadPairScalarVector64(uint* address);
        public static unsafe (Vector64<long> Value1,    Vector64<long> Value2)    LoadPairScalarVector64(long*  address);
        public static unsafe (Vector64<ulong> Value1,   Vector64<ulong> Value2)   LoadPairScalarVector64(ulong* address);
        public static unsafe (Vector64<float> Value1,   Vector64<float> Value2)   LoadPairScalarVector64(float* address);
        public static unsafe (Vector64<double> Value1,  Vector64<double> Value2)  LoadPairScalarVector64(double* address);

        public static unsafe (Vector64<byte> Value1,    Vector64<byte> Value2)    LoadPairVector64NonTemporal(byte*   address);
        public static unsafe (Vector64<sbyte> Value1,   Vector64<sbyte> Value2)   LoadPairVector64NonTemporal(sbyte*  address);
        public static unsafe (Vector64<short> Value1,   Vector64<short> Value2)   LoadPairVector64NonTemporal(short*  address);
        public static unsafe (Vector64<ushort> Value1,  Vector64<ushort> Value2)  LoadPairVector64NonTemporal(ushort* address);
        public static unsafe (Vector64<int> Value1,     Vector64<int> Value2)     LoadPairVector64NonTemporal(int*    address);
        public static unsafe (Vector64<uint> Value1,    Vector64<uint> Value2)    LoadPairVector64NonTemporal(uint*   address);
        public static unsafe (Vector64<float> Value1,   Vector64<float> Value2)   LoadPairVector64NonTemporal(float*  address);

        public static unsafe (Vector128<byte> Value1,   Vector128<byte> Value2)   LoadPairVector128NonTemporal(byte*   address);
        public static unsafe (Vector128<sbyte> Value1,  Vector128<sbyte> Value2)  LoadPairVector128NonTemporal(sbyte*  address);
        public static unsafe (Vector128<short> Value1,  Vector128<short> Value2)  LoadPairVector128NonTemporal(short*  address);
        public static unsafe (Vector128<ushort> Value1, Vector128<ushort> Value2) LoadPairVector128NonTemporal(ushort* address);
        public static unsafe (Vector128<int> Value1,    Vector128<int> Value2)    LoadPairVector128NonTemporal(int*    address);
        public static unsafe (Vector128<uint> Value1,   Vector128<uint> Value2)   LoadPairVector128NonTemporal(uint*   address);
        public static unsafe (Vector128<long> Value1,   Vector128<long> Value2)   LoadPairVector128NonTemporal(long*   address);
        public static unsafe (Vector128<ulong> Value1,  Vector128<ulong> Value2)  LoadPairVector128NonTemporal(ulong*  address);
        public static unsafe (Vector128<float> Value1,  Vector128<float> Value2)  LoadPairVector128NonTemporal(float*  address);

        public static unsafe (Vector64<int> Value1,     Vector64<int> Value2)     LoadPairScalarVector64NonTemporal(int*  address);
        public static unsafe (Vector64<uint> Value1,    Vector64<uint> Value2)    LoadPairScalarVector64NonTemporal(uint* address);
        public static unsafe (Vector64<long> Value1,    Vector64<long> Value2)    LoadPairScalarVector64NonTemporal(long*  address);
        public static unsafe (Vector64<ulong> Value1,   Vector64<ulong> Value2)   LoadPairScalarVector64NonTemporal(ulong* address);
        public static unsafe (Vector64<float> Value1,   Vector64<float> Value2)   LoadPairScalarVector64NonTemporal(float* address);
        public static unsafe (Vector64<double> Value1,  Vector64<double> Value2)  LoadPairScalarVector64NonTemporal(double* address);

Extracted from #37014, see #37014 (comment)

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[Gnbrkm41]

Did we settle on using ValueTuples for the return type instead of a custom type?

[echesakov]

Did we settle on using ValueTuples for the return type instead of a custom type?

@Gnbrkm41 Yes, during the last API review Video

[echesakov]

Pushing this to 6.0