public static void Fmov_Itof1(ILEmitterCtx context)
{
OpCodeSimdCvt64 op = (OpCodeSimdCvt64)context.CurrOp;
context.EmitLdintzr(op.Rn);
EmitIntZeroUpperIfNeeded(context);
EmitVectorInsert(context, op.Rd, 1, 3);
}
public static void Fmov_Ftoi1(ILEmitterCtx context)
{
OpCodeSimdCvt64 op = (OpCodeSimdCvt64)context.CurrOp;
EmitVectorExtractZx(context, op.Rn, 1, 3);
EmitIntZeroUpperIfNeeded(context);
context.EmitStintzr(op.Rd);
}
public static void Scvtf_Gp(ILEmitterCtx context)
{
OpCodeSimdCvt64 op = (OpCodeSimdCvt64)context.CurrOp;
context.EmitLdintzr(op.Rn);
if (context.CurrOp.RegisterSize == RegisterSize.Int32)
{
context.Emit(OpCodes.Conv_U4);
}
EmitFloatCast(context, op.Size);
EmitScalarSetF(context, op.Rd, op.Size);
}
public static void Ucvtf_Gp_Fixed(ILEmitterCtx context)
{
OpCodeSimdCvt64 op = (OpCodeSimdCvt64)context.CurrOp;
context.EmitLdintzr(op.Rn);
if (context.CurrOp.RegisterSize == RegisterSize.Int32)
{
context.Emit(OpCodes.Conv_U4);
}
context.Emit(OpCodes.Conv_R_Un);
EmitFloatCast(context, op.Size);
EmitI2fFBitsMul(context, op.Size, op.FBits);
EmitScalarSetF(context, op.Rd, op.Size);
}
private static void EmitFcvtz__Gp_Fixed(ILEmitterCtx context, bool signed)
{
OpCodeSimdCvt64 op = (OpCodeSimdCvt64)context.CurrOp;
EmitVectorExtractF(context, op.Rn, 0, op.Size);
if (signed)
{
EmitScalarFcvts(context, op.Size, op.FBits);
}
else
{
EmitScalarFcvtu(context, op.Size, op.FBits);
}
if (context.CurrOp.RegisterSize == RegisterSize.Int32)
{
context.Emit(OpCodes.Conv_U8);
}
context.EmitStintzr(op.Rd);
}
private static void EmitSse41Fcvt_Signed_Gp(ILEmitterCtx context, RoundMode roundMode, bool isFixed)
{
OpCodeSimdCvt64 op = (OpCodeSimdCvt64)context.CurrOp;
if (op.Size == 0)
{
Type[] typesCmpMul = new Type[] { typeof(Vector128 <float>), typeof(Vector128 <float>) };
Type[] typesAnd = new Type[] { typeof(Vector128 <long>), typeof(Vector128 <long>) };
Type[] typesRndCvt = new Type[] { typeof(Vector128 <float>) };
Type[] typesCvt = new Type[] { typeof(Vector128 <int>) };
Type[] typesSav = new Type[] { typeof(int) };
//string nameCvt;
int fpMaxVal;
if (op.RegisterSize == RegisterSize.Int32)
{
//nameCvt = nameof(Sse.ConvertToInt32);
fpMaxVal = 0x4F000000; // 2.14748365E9f (2147483648)
}
else
{
//nameCvt = nameof(Sse.ConvertToInt64);
fpMaxVal = 0x5F000000; // 9.223372E18f (9223372036854775808)
}
context.EmitLdvec(op.Rn);
context.EmitLdvec(op.Rn);
context.EmitCall(typeof(Sse).GetMethod(nameof(Sse.CompareOrdered), typesCmpMul));
context.EmitLdvec(op.Rn);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.And), typesAnd));
if (isFixed)
{
// BitConverter.Int32BitsToSingle(fpScaled) == MathF.Pow(2f, op.FBits)
int fpScaled = 0x40000000 + (op.FBits - 1) * 0x800000;
context.EmitLdc_I4(fpScaled);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetAllVector128), typesSav));
context.EmitCall(typeof(Sse).GetMethod(nameof(Sse.Multiply), typesCmpMul));
}
context.EmitCall(typeof(Sse41).GetMethod(GetSse41NameRnd(roundMode), typesRndCvt));
context.EmitStvectmp();
context.EmitLdvectmp();
// TODO: Use Sse.ConvertToInt64 once it is fixed (in .NET Core 3.0),
// remove the following if/else and uncomment the code.
//context.EmitCall(typeof(Sse).GetMethod(nameCvt, typesRndCvt));
if (op.RegisterSize == RegisterSize.Int32)
{
context.EmitCall(typeof(Sse).GetMethod(nameof(Sse.ConvertToInt32), typesRndCvt));
}
else
{
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.ConvertToVector128Double), typesRndCvt));
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.ConvertToInt64), new Type[] { typeof(Vector128 <double>) }));
}
context.EmitLdvectmp();
context.EmitLdc_I4(fpMaxVal);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetAllVector128), typesSav));
context.EmitCall(typeof(Sse).GetMethod(nameof(Sse.CompareGreaterThanOrEqual), typesCmpMul));
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.ConvertToInt32), typesCvt));
if (op.RegisterSize == RegisterSize.Int32)
{
context.Emit(OpCodes.Xor);
context.Emit(OpCodes.Conv_U8);
}
else
{
context.Emit(OpCodes.Conv_I8);
context.Emit(OpCodes.Xor);
}
context.EmitStintzr(op.Rd);
}
else /* if (op.Size == 1) */
{
Type[] typesCmpMul = new Type[] { typeof(Vector128 <double>), typeof(Vector128 <double>) };
Type[] typesAnd = new Type[] { typeof(Vector128 <long>), typeof(Vector128 <long>) };
Type[] typesRndCvt = new Type[] { typeof(Vector128 <double>) };
Type[] typesCvt = new Type[] { typeof(Vector128 <int>) };
Type[] typesSav = new Type[] { typeof(long) };
string nameCvt;
long fpMaxVal;
if (op.RegisterSize == RegisterSize.Int32)
{
nameCvt = nameof(Sse2.ConvertToInt32);
fpMaxVal = 0x41E0000000000000L; // 2147483648.0000000d (2147483648)
}
else
{
nameCvt = nameof(Sse2.ConvertToInt64);
fpMaxVal = 0x43E0000000000000L; // 9.2233720368547760E18d (9223372036854775808)
}
context.EmitLdvec(op.Rn);
context.EmitLdvec(op.Rn);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.CompareOrdered), typesCmpMul));
context.EmitLdvec(op.Rn);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.And), typesAnd));
if (isFixed)
{
// BitConverter.Int64BitsToDouble(fpScaled) == Math.Pow(2d, op.FBits)
long fpScaled = 0x4000000000000000L + (op.FBits - 1) * 0x10000000000000L;
context.EmitLdc_I8(fpScaled);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetAllVector128), typesSav));
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.Multiply), typesCmpMul));
}
context.EmitCall(typeof(Sse41).GetMethod(GetSse41NameRnd(roundMode), typesRndCvt));
context.EmitStvectmp();
context.EmitLdvectmp();
context.EmitCall(typeof(Sse2).GetMethod(nameCvt, typesRndCvt));
context.EmitLdvectmp();
context.EmitLdc_I8(fpMaxVal);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetAllVector128), typesSav));
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.CompareGreaterThanOrEqual), typesCmpMul));
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.ConvertToInt32), typesCvt));
if (op.RegisterSize == RegisterSize.Int32)
{
context.Emit(OpCodes.Xor);
context.Emit(OpCodes.Conv_U8);
}
else
{
context.Emit(OpCodes.Conv_I8);
context.Emit(OpCodes.Xor);
}
context.EmitStintzr(op.Rd);
}
}