public void RunStructFldScenario(SimpleBinaryOpTest__CompareGreaterThanSingle testClass)
{
var result = Avx.CompareGreaterThan(_fld1, _fld2);
Unsafe.Write(testClass._dataTable.outArrayPtr, result);
testClass.ValidateResult(_fld1, _fld2, testClass._dataTable.outArrayPtr);
}
public void RunClassFldScenario()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunClassFldScenario));
var result = Avx.CompareGreaterThan(_fld1, _fld2);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(_fld1, _fld2, _dataTable.outArrayPtr);
}
public void RunStructLclFldScenario()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunStructLclFldScenario));
var test = TestStruct.Create();
var result = Avx.CompareGreaterThan(test._fld1, test._fld2);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(test._fld1, test._fld2, _dataTable.outArrayPtr);
}
public void RunClassLclFldScenario()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunClassLclFldScenario));
var test = new SimpleBinaryOpTest__CompareGreaterThanSingle();
var result = Avx.CompareGreaterThan(test._fld1, test._fld2);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(test._fld1, test._fld2, _dataTable.outArrayPtr);
}
public void RunLclVarScenario_LoadAligned()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunLclVarScenario_LoadAligned));
var op1 = Avx.LoadAlignedVector256((Single *)(_dataTable.inArray1Ptr));
var op2 = Avx.LoadAlignedVector256((Single *)(_dataTable.inArray2Ptr));
var result = Avx.CompareGreaterThan(op1, op2);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(op1, op2, _dataTable.outArrayPtr);
}
public void RunLclVarScenario_UnsafeRead()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunLclVarScenario_UnsafeRead));
var op1 = Unsafe.Read <Vector256 <Single> >(_dataTable.inArray1Ptr);
var op2 = Unsafe.Read <Vector256 <Single> >(_dataTable.inArray2Ptr);
var result = Avx.CompareGreaterThan(op1, op2);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(op1, op2, _dataTable.outArrayPtr);
}
public void RunBasicScenario_Load()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunBasicScenario_Load));
var result = Avx.CompareGreaterThan(
Avx.LoadVector256((Single *)(_dataTable.inArray1Ptr)),
Avx.LoadVector256((Single *)(_dataTable.inArray2Ptr))
);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(_dataTable.inArray1Ptr, _dataTable.inArray2Ptr, _dataTable.outArrayPtr);
}
public void RunBasicScenario_UnsafeRead()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunBasicScenario_UnsafeRead));
var result = Avx.CompareGreaterThan(
Unsafe.Read <Vector256 <Double> >(_dataTable.inArray1Ptr),
Unsafe.Read <Vector256 <Double> >(_dataTable.inArray2Ptr)
);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(_dataTable.inArray1Ptr, _dataTable.inArray2Ptr, _dataTable.outArrayPtr);
}
public void RunStructLclFldScenario_Load()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunStructLclFldScenario_Load));
var test = TestStruct.Create();
var result = Avx.CompareGreaterThan(
Avx.LoadVector256((Single *)(&test._fld1)),
Avx.LoadVector256((Single *)(&test._fld2))
);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(test._fld1, test._fld2, _dataTable.outArrayPtr);
}
public void RunStructFldScenario_Load(SimpleBinaryOpTest__CompareGreaterThanSingle testClass)
{
fixed(Vector256 <Single> *pFld1 = &_fld1)
fixed(Vector256 <Single> *pFld2 = &_fld2)
{
var result = Avx.CompareGreaterThan(
Avx.LoadVector256((Single *)(pFld1)),
Avx.LoadVector256((Single *)(pFld2))
);
Unsafe.Write(testClass._dataTable.outArrayPtr, result);
testClass.ValidateResult(_fld1, _fld2, testClass._dataTable.outArrayPtr);
}
}
public void RunClassFldScenario_Load()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunClassFldScenario_Load));
fixed(Vector256 <Single> *pFld1 = &_fld1)
fixed(Vector256 <Single> *pFld2 = &_fld2)
{
var result = Avx.CompareGreaterThan(
Avx.LoadVector256((Single *)(pFld1)),
Avx.LoadVector256((Single *)(pFld2))
);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(_fld1, _fld2, _dataTable.outArrayPtr);
}
}
public void RunClsVarScenario_Load()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunClsVarScenario_Load));
fixed(Vector256 <Double> *pClsVar1 = &_clsVar1)
fixed(Vector256 <Double> *pClsVar2 = &_clsVar2)
{
var result = Avx.CompareGreaterThan(
Avx.LoadVector256((Double *)(pClsVar1)),
Avx.LoadVector256((Double *)(pClsVar2))
);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(_clsVar1, _clsVar2, _dataTable.outArrayPtr);
}
}
public void RunClassLclFldScenario_Load()
{
TestLibrary.TestFramework.BeginScenario(nameof(RunClassLclFldScenario_Load));
var test = new SimpleBinaryOpTest__CompareGreaterThanDouble();
fixed(Vector256 <Double> *pFld1 = &test._fld1)
fixed(Vector256 <Double> *pFld2 = &test._fld2)
{
var result = Avx.CompareGreaterThan(
Avx.LoadVector256((Double *)(pFld1)),
Avx.LoadVector256((Double *)(pFld2))
);
Unsafe.Write(_dataTable.outArrayPtr, result);
ValidateResult(test._fld1, test._fld2, _dataTable.outArrayPtr);
}
}
static bool TestAvxCompareGreaterThanDouble()
{
if (Avx.IsSupported)
{
const int expectedResult = 0b1000;
Vector256 <double> value1 = Vector256.Create(double.NaN, 1.0, 0.0, 2.0);
Vector256 <double> value2 = Vector256.Create(0.0, 2.0, double.NaN, 1.0);
Vector256 <double> result = Avx.CompareGreaterThan(value1, value2);
int actualResult = Avx.MoveMask(result);
if (actualResult != expectedResult)
{
Console.WriteLine($"{nameof(Avx)}.{nameof(Avx.CompareGreaterThan)}({value1}, {value2}) returned {Convert.ToString(actualResult, 2)}; expected {Convert.ToString(expectedResult, 2)}");
return(false);
}
}
return(true);
}
public unsafe static Vector128 <float> Exp2(Vector128 <float> power)
{
Debug.Assert(Avx.MoveMask(Avx.And(Avx.CompareGreaterThan(power, AvxExtensions.BroadcastScalarToVector128(MathV.FloatMaximumPower)), Avx.CompareOrdered(power, power))) == 0);
byte zeroMask = (byte)Avx.MoveMask(Avx.CompareLessThan(power, AvxExtensions.BroadcastScalarToVector128(-MathV.FloatMaximumPower)));
Vector128 <float> integerPart = Avx.RoundToNearestInteger(power);
Vector128 <float> integerExponent = Avx.ShiftLeftLogical(Avx.Add(Avx.ConvertToVector128Int32(integerPart), MathV.FloatMantissaZero128), MathV.FloatMantissaBits).AsSingle();
// evaluate polynomial
Vector128 <float> beta1 = AvxExtensions.BroadcastScalarToVector128(MathV.Exp2Beta1);
Vector128 <float> beta2 = AvxExtensions.BroadcastScalarToVector128(MathV.Exp2Beta2);
Vector128 <float> beta3 = AvxExtensions.BroadcastScalarToVector128(MathV.Exp2Beta3);
Vector128 <float> beta4 = AvxExtensions.BroadcastScalarToVector128(MathV.Exp2Beta4);
Vector128 <float> x = Avx.Subtract(power, integerPart); // fractional part
Vector128 <float> fractionalExponent = AvxExtensions.BroadcastScalarToVector128(MathV.One);
fractionalExponent = Avx.Add(fractionalExponent, Avx.Multiply(beta1, x));
Vector128 <float> x2 = Avx.Multiply(x, x);
fractionalExponent = Avx.Add(fractionalExponent, Avx.Multiply(beta2, x2));
Vector128 <float> x3 = Avx.Multiply(x2, x);
fractionalExponent = Avx.Add(fractionalExponent, Avx.Multiply(beta3, x3));
Vector128 <float> x4 = Avx.Multiply(x3, x);
fractionalExponent = Avx.Add(fractionalExponent, Avx.Multiply(beta4, x4));
// form exponent
Vector128 <float> exponent = Avx.Multiply(integerExponent, fractionalExponent);
// suppress exponent overflows by truncating values less than 2^-127 to zero
if (zeroMask != 0)
{
exponent = Avx.Blend(exponent, Vector128 <float> .Zero, zeroMask);
}
return(exponent);
}
public static m32 GreaterThan(f32 lhs, f32 rhs) => Avx.CompareGreaterThan(lhs, rhs).AsInt32();
