private static void EmitTableVectorLookup(ArmEmitterContext context, bool isTbl)
{
OpCodeSimdTbl op = (OpCodeSimdTbl)context.CurrOp;
if (Optimizations.UseSsse3)
{
Operand d = GetVec(op.Rd);
Operand m = GetVec(op.Rm);
Operand res;
Operand mask = X86GetAllElements(context, 0x0F0F0F0F0F0F0F0FL);
// Fast path for single register table.
{
Operand n = GetVec(op.Rn);
Operand mMask = context.AddIntrinsic(Intrinsic.X86Pcmpgtb, m, mask);
mMask = context.AddIntrinsic(Intrinsic.X86Por, mMask, m);
res = context.AddIntrinsic(Intrinsic.X86Pshufb, n, mMask);
}
for (int index = 1; index < op.Size; index++)
{
Operand ni = GetVec((op.Rn + index) & 0x1F);
Operand idxMask = X86GetAllElements(context, 0x1010101010101010L * index);
Operand mSubMask = context.AddIntrinsic(Intrinsic.X86Psubb, m, idxMask);
Operand mMask = context.AddIntrinsic(Intrinsic.X86Pcmpgtb, mSubMask, mask);
mMask = context.AddIntrinsic(Intrinsic.X86Por, mMask, mSubMask);
Operand res2 = context.AddIntrinsic(Intrinsic.X86Pshufb, ni, mMask);
res = context.AddIntrinsic(Intrinsic.X86Por, res, res2);
}
if (!isTbl)
{
Operand idxMask = X86GetAllElements(context, (0x1010101010101010L * op.Size) - 0x0101010101010101L);
Operand zeroMask = context.VectorZero();
Operand mPosMask = context.AddIntrinsic(Intrinsic.X86Pcmpgtb, m, idxMask);
Operand mNegMask = context.AddIntrinsic(Intrinsic.X86Pcmpgtb, zeroMask, m);
Operand mMask = context.AddIntrinsic(Intrinsic.X86Por, mPosMask, mNegMask);
Operand dMask = context.AddIntrinsic(Intrinsic.X86Pand, d, mMask);
res = context.AddIntrinsic(Intrinsic.X86Por, res, dMask);
}
if (op.RegisterSize == RegisterSize.Simd64)
{
res = context.VectorZeroUpper64(res);
}
context.Copy(d, res);
}
else
{
Operand d = GetVec(op.Rd);
List <Operand> args = new List <Operand>();
if (!isTbl)
{
args.Add(d);
}
args.Add(GetVec(op.Rm));
args.Add(Const(op.RegisterSize == RegisterSize.Simd64 ? 8 : 16));
for (int index = 0; index < op.Size; index++)
{
args.Add(GetVec((op.Rn + index) & 0x1F));
}
Delegate dlg = null;
switch (op.Size)
{
case 1: dlg = isTbl
? (Delegate) new _V128_V128_S32_V128(SoftFallback.Tbl1)
: (Delegate) new _V128_V128_V128_S32_V128(SoftFallback.Tbx1);
break;
case 2: dlg = isTbl
? (Delegate) new _V128_V128_S32_V128_V128(SoftFallback.Tbl2)
: (Delegate) new _V128_V128_V128_S32_V128_V128(SoftFallback.Tbx2);
break;
case 3: dlg = isTbl
? (Delegate) new _V128_V128_S32_V128_V128_V128(SoftFallback.Tbl3)
: (Delegate) new _V128_V128_V128_S32_V128_V128_V128(SoftFallback.Tbx3);
break;
case 4: dlg = isTbl
? (Delegate) new _V128_V128_S32_V128_V128_V128_V128(SoftFallback.Tbl4)
: (Delegate) new _V128_V128_V128_S32_V128_V128_V128_V128(SoftFallback.Tbx4);
break;
}
context.Copy(d, context.Call(dlg, args.ToArray()));
}
}
public static void Tbl_V(ArmEmitterContext context)
{
OpCodeSimdTbl op = (OpCodeSimdTbl)context.CurrOp;
if (Optimizations.UseSsse3)
{
Operand n = GetVec(op.Rn);
Operand m = GetVec(op.Rm);
Operand mask = X86GetAllElements(context, 0x0F0F0F0F0F0F0F0FL);
Operand mMask = context.AddIntrinsic(Intrinsic.X86Pcmpgtb, m, mask);
mMask = context.AddIntrinsic(Intrinsic.X86Por, mMask, m);
Operand res = context.AddIntrinsic(Intrinsic.X86Pshufb, n, mMask);
for (int index = 1; index < op.Size; index++)
{
Operand ni = GetVec((op.Rn + index) & 0x1f);
Operand indexMask = X86GetAllElements(context, 0x1010101010101010L * index);
Operand mMinusMask = context.AddIntrinsic(Intrinsic.X86Psubb, m, indexMask);
Operand mMask2 = context.AddIntrinsic(Intrinsic.X86Pcmpgtb, mMinusMask, mask);
mMask2 = context.AddIntrinsic(Intrinsic.X86Por, mMask2, mMinusMask);
Operand res2 = context.AddIntrinsic(Intrinsic.X86Pshufb, ni, mMask2);
res = context.AddIntrinsic(Intrinsic.X86Por, res, res2);
}
if (op.RegisterSize == RegisterSize.Simd64)
{
res = context.VectorZeroUpper64(res);
}
context.Copy(GetVec(op.Rd), res);
}
else
{
Operand[] args = new Operand[1 + op.Size];
args[0] = GetVec(op.Rm);
for (int index = 0; index < op.Size; index++)
{
args[1 + index] = GetVec((op.Rn + index) & 0x1f);
}
Delegate dlg = null;
switch (op.Size)
{
case 1: dlg = op.RegisterSize == RegisterSize.Simd64
? (Delegate) new _V128_V128_V128(SoftFallback.Tbl1_V64)
: (Delegate) new _V128_V128_V128(SoftFallback.Tbl1_V128); break;
case 2: dlg = op.RegisterSize == RegisterSize.Simd64
? (Delegate) new _V128_V128_V128_V128(SoftFallback.Tbl2_V64)
: (Delegate) new _V128_V128_V128_V128(SoftFallback.Tbl2_V128); break;
case 3: dlg = op.RegisterSize == RegisterSize.Simd64
? (Delegate) new _V128_V128_V128_V128_V128(SoftFallback.Tbl3_V64)
: (Delegate) new _V128_V128_V128_V128_V128(SoftFallback.Tbl3_V128); break;
case 4: dlg = op.RegisterSize == RegisterSize.Simd64
? (Delegate) new _V128_V128_V128_V128_V128_V128(SoftFallback.Tbl4_V64)
: (Delegate) new _V128_V128_V128_V128_V128_V128(SoftFallback.Tbl4_V128); break;
}
context.Copy(GetVec(op.Rd), context.Call(dlg, args));
}
}
