public static void Vdup_1(ArmEmitterContext context)
{
OpCode32SimdDupElem op = (OpCode32SimdDupElem)context.CurrOp;
Operand insert = EmitVectorExtractZx32(context, op.Vm >> 1, ((op.Vm & 1) << (3 - op.Size)) + op.Index, op.Size);
// Zero extend into an I64, then replicate. Saves the most time over elementwise inserts.
switch (op.Size)
{
case 2:
insert = context.Multiply(context.ZeroExtend32(OperandType.I64, insert), Const(0x0000000100000001u));
break;
case 1:
insert = context.Multiply(context.ZeroExtend16(OperandType.I64, insert), Const(0x0001000100010001u));
break;
case 0:
insert = context.Multiply(context.ZeroExtend8(OperandType.I64, insert), Const(0x0101010101010101u));
break;
default:
throw new InvalidOperationException("Unknown Vdup Size.");
}
InsertScalar(context, op.Vd, insert);
if (op.Q)
{
InsertScalar(context, op.Vd | 1, insert);
}
}
public static void Vdup_1(ArmEmitterContext context)
{
OpCode32SimdDupElem op = (OpCode32SimdDupElem)context.CurrOp;
Operand insert = EmitVectorExtractZx32(context, op.Vm >> 1, ((op.Vm & 1) << (3 - op.Size)) + op.Index, op.Size);
// Zero extend into an I64, then replicate. Saves the most time over elementwise inserts.
insert = op.Size switch
{
2 => context.Multiply(context.ZeroExtend32(OperandType.I64, insert), Const(0x0000000100000001u)),
1 => context.Multiply(context.ZeroExtend16(OperandType.I64, insert), Const(0x0001000100010001u)),
0 => context.Multiply(context.ZeroExtend8(OperandType.I64, insert), Const(0x0101010101010101u)),
_ => throw new InvalidOperationException($"Invalid Vdup size \"{op.Size}\".")
};
InsertScalar(context, op.Vd, insert);
if (op.Q)
{
InsertScalar(context, op.Vd | 1, insert);
}
}