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Vector64: Avoid GSCookies in Vector64 software fallback #98293

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merged 3 commits into from
Mar 19, 2024
Merged

Vector64: Avoid GSCookies in Vector64 software fallback #98293

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c1e43ad
Faster Vector64 fallback
hez2010 Feb 12, 2024
0e67ea2
Merge branch 'main' into vec64
hez2010 Feb 20, 2024
ef326e7
Merge branch 'main' into vec64
tannergooding Mar 18, 2024
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102 changes: 44 additions & 58 deletions src/libraries/System.Private.CoreLib/src/System/Runtime/Intrinsics/Vector64.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -700,18 +700,16 @@ public static Vector64<T> Create<T>(ReadOnlySpan<T> values)
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static unsafe Vector64<byte> Create(byte e0, byte e1, byte e2, byte e3, byte e4, byte e5, byte e6, byte e7)
{
byte* pResult = stackalloc byte[8]
{
e0,
e1,
e2,
e3,
e4,
e5,
e6,
e7,
};
return Unsafe.AsRef<Vector64<byte>>(pResult);
Unsafe.SkipInit(out Vector64<byte> result);
result.SetElementUnsafe(0, e0);
result.SetElementUnsafe(1, e1);
result.SetElementUnsafe(2, e2);
result.SetElementUnsafe(3, e3);
result.SetElementUnsafe(4, e4);
result.SetElementUnsafe(5, e5);
result.SetElementUnsafe(6, e6);
result.SetElementUnsafe(7, e7);
return result;
}

/// <summary>Creates a new <see cref="Vector64{Int16}" /> instance with each element initialized to the corresponding specified value.</summary>
Expand All @@ -725,14 +723,12 @@ public static unsafe Vector64<byte> Create(byte e0, byte e1, byte e2, byte e3, b
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static unsafe Vector64<short> Create(short e0, short e1, short e2, short e3)
{
short* pResult = stackalloc short[4]
{
e0,
e1,
e2,
e3,
};
return Unsafe.AsRef<Vector64<short>>(pResult);
Unsafe.SkipInit(out Vector64<short> result);
result.SetElementUnsafe(0, e0);
result.SetElementUnsafe(1, e1);
result.SetElementUnsafe(2, e2);
result.SetElementUnsafe(3, e3);
return result;
}

/// <summary>Creates a new <see cref="Vector64{Int32}" /> instance with each element initialized to the corresponding specified value.</summary>
Expand All @@ -744,12 +740,10 @@ public static unsafe Vector64<short> Create(short e0, short e1, short e2, short
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static unsafe Vector64<int> Create(int e0, int e1)
{
int* pResult = stackalloc int[2]
{
e0,
e1,
};
return Unsafe.AsRef<Vector64<int>>(pResult);
Unsafe.SkipInit(out Vector64<int> result);
result.SetElementUnsafe(0, e0);
result.SetElementUnsafe(1, e1);
return result;
}

/// <summary>Creates a new <see cref="Vector64{SByte}" /> instance with each element initialized to the corresponding specified value.</summary>
Expand All @@ -768,18 +762,16 @@ public static unsafe Vector64<int> Create(int e0, int e1)
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static unsafe Vector64<sbyte> Create(sbyte e0, sbyte e1, sbyte e2, sbyte e3, sbyte e4, sbyte e5, sbyte e6, sbyte e7)
{
sbyte* pResult = stackalloc sbyte[8]
{
e0,
e1,
e2,
e3,
e4,
e5,
e6,
e7,
};
return Unsafe.AsRef<Vector64<sbyte>>(pResult);
Unsafe.SkipInit(out Vector64<sbyte> result);
result.SetElementUnsafe(0, e0);
result.SetElementUnsafe(1, e1);
result.SetElementUnsafe(2, e2);
result.SetElementUnsafe(3, e3);
result.SetElementUnsafe(4, e4);
result.SetElementUnsafe(5, e5);
result.SetElementUnsafe(6, e6);
result.SetElementUnsafe(7, e7);
return result;
}

/// <summary>Creates a new <see cref="Vector64{Single}" /> instance with each element initialized to the corresponding specified value.</summary>
Expand All @@ -790,12 +782,10 @@ public static unsafe Vector64<sbyte> Create(sbyte e0, sbyte e1, sbyte e2, sbyte
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static unsafe Vector64<float> Create(float e0, float e1)
{
float* pResult = stackalloc float[2]
{
e0,
e1,
};
return Unsafe.AsRef<Vector64<float>>(pResult);
Unsafe.SkipInit(out Vector64<float> result);
result.SetElementUnsafe(0, e0);
result.SetElementUnsafe(1, e1);
return result;
}

/// <summary>Creates a new <see cref="Vector64{UInt16}" /> instance with each element initialized to the corresponding specified value.</summary>
Expand All @@ -810,14 +800,12 @@ public static unsafe Vector64<float> Create(float e0, float e1)
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static unsafe Vector64<ushort> Create(ushort e0, ushort e1, ushort e2, ushort e3)
{
ushort* pResult = stackalloc ushort[4]
{
e0,
e1,
e2,
e3,
};
return Unsafe.AsRef<Vector64<ushort>>(pResult);
Unsafe.SkipInit(out Vector64<ushort> result);
result.SetElementUnsafe(0, e0);
result.SetElementUnsafe(1, e1);
result.SetElementUnsafe(2, e2);
result.SetElementUnsafe(3, e3);
return result;
}

/// <summary>Creates a new <see cref="Vector64{UInt32}" /> instance with each element initialized to the corresponding specified value.</summary>
Expand All @@ -830,12 +818,10 @@ public static unsafe Vector64<ushort> Create(ushort e0, ushort e1, ushort e2, us
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static unsafe Vector64<uint> Create(uint e0, uint e1)
{
uint* pResult = stackalloc uint[2]
{
e0,
e1,
};
return Unsafe.AsRef<Vector64<uint>>(pResult);
Unsafe.SkipInit(out Vector64<uint> result);
result.SetElementUnsafe(0, e0);
result.SetElementUnsafe(1, e1);
return result;
}

/// <summary>Creates a new <see cref="Vector64{T}" /> instance with the first element initialized to the specified value and the remaining elements initialized to zero.</summary>
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