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Optimize Vector64<T>.ToScalar() and Vector128<T>.ToScalar() #35736

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Optimize Vector64<T>.ToScalar() and Vector128<T>.ToScalar() #35736

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7 changes: 7 additions & 0 deletions src/coreclr/src/jit/hwintrinsiccodegenarm64.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -557,6 +557,13 @@ void CodeGen::genHWIntrinsic(GenTreeHWIntrinsic* node)
GetEmitter()->emitIns_R_I(ins, emitSize, targetReg, 0, INS_OPTS_4S);
break;

case NI_Vector64_ToScalar:
case NI_Vector128_ToScalar:
GetEmitter()->emitIns_R_R_I(ins, emitTypeSize(intrin.baseType), targetReg, op1Reg, 0,
INS_OPTS_NONE);

break;

default:
unreached();
}
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2 changes: 2 additions & 0 deletions src/coreclr/src/jit/hwintrinsiclistarm64.h
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Expand Up @@ -27,6 +27,7 @@ HARDWARE_INTRINSIC(Vector64, CreateScalarUnsafe,
HARDWARE_INTRINSIC(Vector64, get_AllBitsSet, 8, 0, {INS_mvni, INS_mvni, INS_mvni, INS_mvni, INS_mvni, INS_mvni, INS_mvni, INS_mvni, INS_mvni, INS_mvni}, HW_Category_Helper, HW_Flag_SpecialImport|HW_Flag_SpecialCodeGen)
HARDWARE_INTRINSIC(Vector64, get_Count, 8, 0, {INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid}, HW_Category_Helper, HW_Flag_SpecialImport|HW_Flag_NoCodeGen)
HARDWARE_INTRINSIC(Vector64, get_Zero, 8, 0, {INS_movi, INS_movi, INS_movi, INS_movi, INS_movi, INS_movi, INS_movi, INS_movi, INS_movi, INS_movi}, HW_Category_Helper, HW_Flag_SpecialImport|HW_Flag_SpecialCodeGen)
HARDWARE_INTRINSIC(Vector64, ToScalar, 8, 1, {INS_smov, INS_umov, INS_smov, INS_umov, INS_smov, INS_umov, INS_umov, INS_umov, INS_dup, INS_dup}, HW_Category_SIMDScalar, HW_Flag_SpecialCodeGen|HW_Flag_BaseTypeFromFirstArg)

// ***************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************
// ISA Function name SIMD size NumArg Instructions Category Flags
Expand All @@ -48,6 +49,7 @@ HARDWARE_INTRINSIC(Vector128, CreateScalarUnsafe, 1
HARDWARE_INTRINSIC(Vector128, get_AllBitsSet, 16, 0, {INS_mvni, INS_mvni, INS_mvni, INS_mvni, INS_mvni, INS_mvni, INS_mvni, INS_mvni, INS_mvni, INS_mvni}, HW_Category_Helper, HW_Flag_SpecialImport|HW_Flag_SpecialCodeGen)
HARDWARE_INTRINSIC(Vector128, get_Count, 16, 0, {INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid, INS_invalid}, HW_Category_Helper, HW_Flag_SpecialImport|HW_Flag_NoCodeGen)
HARDWARE_INTRINSIC(Vector128, get_Zero, 16, 0, {INS_movi, INS_movi, INS_movi, INS_movi, INS_movi, INS_movi, INS_movi, INS_movi, INS_movi, INS_movi}, HW_Category_Helper, HW_Flag_SpecialImport|HW_Flag_SpecialCodeGen)
HARDWARE_INTRINSIC(Vector128, ToScalar, 16, 1, {INS_smov, INS_umov, INS_smov, INS_umov, INS_smov, INS_umov, INS_umov, INS_umov, INS_dup, INS_dup}, HW_Category_SIMDScalar, HW_Flag_SpecialCodeGen|HW_Flag_BaseTypeFromFirstArg)

// ***************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************************
// ISA Function name SIMD size NumArg Instructions Category Flags
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1 change: 1 addition & 0 deletions src/libraries/System.Private.CoreLib/src/System/Runtime/Intrinsics/Vector64.cs
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Expand Up @@ -741,6 +741,7 @@ public static Vector64<T> WithElement<T>(this Vector64<T> vector, int index, T v
/// <param name="vector">The vector to get the first element from.</param>
/// <returns>A scalar <typeparamref name="T" /> containing the value of the first element.</returns>
/// <exception cref="NotSupportedException">The type of <paramref name="vector" /> (<typeparamref name="T" />) is not supported.</exception>
[Intrinsic]
public static T ToScalar<T>(this Vector64<T> vector)
where T : struct
{
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