Ryujinx/ARMeilleure/Instructions/InstEmitSimdMove32.cs
LDj3SNuD 6938988427
Fix Vcvt_FI & Vcvt_RM; Add Vfma_S & Vfms_S. Add Tests. (#1471)
* Fix Vcvt_FI & Vcvt_RM; Add Vfma_S & Vfms_S. Add Tests.

* Address PR feedback & Nit.
2020-08-13 02:34:02 -03:00

595 lines
23 KiB
C#

using ARMeilleure.Decoders;
using ARMeilleure.IntermediateRepresentation;
using ARMeilleure.Translation;
using System;
using static ARMeilleure.Instructions.InstEmitHelper;
using static ARMeilleure.Instructions.InstEmitSimdHelper;
using static ARMeilleure.Instructions.InstEmitSimdHelper32;
using static ARMeilleure.IntermediateRepresentation.OperandHelper;
namespace ARMeilleure.Instructions
{
static partial class InstEmit32
{
#region "Masks"
// Same as InstEmitSimdMove, as the instructions do the same thing.
private static readonly long[] _masksE0_Uzp = new long[]
{
13L << 56 | 09L << 48 | 05L << 40 | 01L << 32 | 12L << 24 | 08L << 16 | 04L << 8 | 00L << 0,
11L << 56 | 10L << 48 | 03L << 40 | 02L << 32 | 09L << 24 | 08L << 16 | 01L << 8 | 00L << 0
};
private static readonly long[] _masksE1_Uzp = new long[]
{
15L << 56 | 11L << 48 | 07L << 40 | 03L << 32 | 14L << 24 | 10L << 16 | 06L << 8 | 02L << 0,
15L << 56 | 14L << 48 | 07L << 40 | 06L << 32 | 13L << 24 | 12L << 16 | 05L << 8 | 04L << 0
};
#endregion
public static void Vmov_I(ArmEmitterContext context)
{
EmitVectorImmUnaryOp32(context, (op1) => op1);
}
public static void Vmvn_I(ArmEmitterContext context)
{
if (Optimizations.UseSse2)
{
EmitVectorUnaryOpSimd32(context, (op1) =>
{
Operand mask = X86GetAllElements(context, -1L);
return context.AddIntrinsic(Intrinsic.X86Pandn, op1, mask);
});
}
else
{
EmitVectorUnaryOpZx32(context, (op1) => context.BitwiseNot(op1));
}
}
public static void Vmvn_II(ArmEmitterContext context)
{
EmitVectorImmUnaryOp32(context, (op1) => context.BitwiseNot(op1));
}
public static void Vmov_GS(ArmEmitterContext context)
{
OpCode32SimdMovGp op = (OpCode32SimdMovGp)context.CurrOp;
Operand vec = GetVecA32(op.Vn >> 2);
if (op.Op == 1)
{
// To general purpose.
Operand value = context.VectorExtract(OperandType.I32, vec, op.Vn & 0x3);
SetIntA32(context, op.Rt, value);
}
else
{
// From general purpose.
Operand value = GetIntA32(context, op.Rt);
context.Copy(vec, context.VectorInsert(vec, value, op.Vn & 0x3));
}
}
public static void Vmov_G1(ArmEmitterContext context)
{
OpCode32SimdMovGpElem op = (OpCode32SimdMovGpElem)context.CurrOp;
int index = op.Index + ((op.Vd & 1) << (3 - op.Size));
if (op.Op == 1)
{
// To general purpose.
Operand value = EmitVectorExtract32(context, op.Vd >> 1, index, op.Size, !op.U);
SetIntA32(context, op.Rt, value);
}
else
{
// From general purpose.
Operand vec = GetVecA32(op.Vd >> 1);
Operand value = GetIntA32(context, op.Rt);
context.Copy(vec, EmitVectorInsert(context, vec, value, index, op.Size));
}
}
public static void Vmov_G2(ArmEmitterContext context)
{
OpCode32SimdMovGpDouble op = (OpCode32SimdMovGpDouble)context.CurrOp;
Operand vec = GetVecA32(op.Vm >> 2);
int vm1 = op.Vm + 1;
bool sameOwnerVec = (op.Vm >> 2) == (vm1 >> 2);
Operand vec2 = sameOwnerVec ? vec : GetVecA32(vm1 >> 2);
if (op.Op == 1)
{
// To general purpose.
Operand lowValue = context.VectorExtract(OperandType.I32, vec, op.Vm & 3);
SetIntA32(context, op.Rt, lowValue);
Operand highValue = context.VectorExtract(OperandType.I32, vec2, vm1 & 3);
SetIntA32(context, op.Rt2, highValue);
}
else
{
// From general purpose.
Operand lowValue = GetIntA32(context, op.Rt);
Operand resultVec = context.VectorInsert(vec, lowValue, op.Vm & 3);
Operand highValue = GetIntA32(context, op.Rt2);
if (sameOwnerVec)
{
context.Copy(vec, context.VectorInsert(resultVec, highValue, vm1 & 3));
}
else
{
context.Copy(vec, resultVec);
context.Copy(vec2, context.VectorInsert(vec2, highValue, vm1 & 3));
}
}
}
public static void Vmov_GD(ArmEmitterContext context)
{
OpCode32SimdMovGpDouble op = (OpCode32SimdMovGpDouble)context.CurrOp;
Operand vec = GetVecA32(op.Vm >> 1);
if (op.Op == 1)
{
// To general purpose.
Operand value = context.VectorExtract(OperandType.I64, vec, op.Vm & 1);
SetIntA32(context, op.Rt, context.ConvertI64ToI32(value));
SetIntA32(context, op.Rt2, context.ConvertI64ToI32(context.ShiftRightUI(value, Const(32))));
}
else
{
// From general purpose.
Operand lowValue = GetIntA32(context, op.Rt);
Operand highValue = GetIntA32(context, op.Rt2);
Operand value = context.BitwiseOr(
context.ZeroExtend32(OperandType.I64, lowValue),
context.ShiftLeft(context.ZeroExtend32(OperandType.I64, highValue), Const(32)));
context.Copy(vec, context.VectorInsert(vec, value, op.Vm & 1));
}
}
public static void Vmovl(ArmEmitterContext context)
{
OpCode32SimdLong op = (OpCode32SimdLong)context.CurrOp;
Operand res = context.VectorZero();
int elems = op.GetBytesCount() >> op.Size;
for (int index = 0; index < elems; index++)
{
Operand me = EmitVectorExtract32(context, op.Qm, op.Im + index, op.Size, !op.U);
if (op.Size == 2)
{
if (op.U)
{
me = context.ZeroExtend32(OperandType.I64, me);
}
else
{
me = context.SignExtend32(OperandType.I64, me);
}
}
res = EmitVectorInsert(context, res, me, index, op.Size + 1);
}
context.Copy(GetVecA32(op.Qd), res);
}
public static void Vtbl(ArmEmitterContext context)
{
OpCode32SimdTbl op = (OpCode32SimdTbl)context.CurrOp;
bool extension = op.Opc == 1;
int length = op.Length + 1;
if (Optimizations.UseSsse3)
{
Operand d = GetVecA32(op.Qd);
Operand m = EmitMoveDoubleWordToSide(context, GetVecA32(op.Qm), op.Vm, 0);
Operand res;
Operand mask = X86GetAllElements(context, 0x0707070707070707L);
// Fast path for single register table.
{
Operand n = EmitMoveDoubleWordToSide(context, GetVecA32(op.Qn), op.Vn, 0);
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 < length; index++)
{
int newVn = (op.Vn + index) & 0x1F;
(int qn, int ind) = GetQuadwordAndSubindex(newVn, op.RegisterSize);
Operand ni = EmitMoveDoubleWordToSide(context, GetVecA32(qn), newVn, 0);
Operand idxMask = X86GetAllElements(context, 0x0808080808080808L * 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 (extension)
{
Operand idxMask = X86GetAllElements(context, (0x0808080808080808L * length) - 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, EmitMoveDoubleWordToSide(context, d, op.Vd, 0), mMask);
res = context.AddIntrinsic(Intrinsic.X86Por, res, dMask);
}
res = EmitMoveDoubleWordToSide(context, res, 0, op.Vd);
context.Copy(d, EmitDoubleWordInsert(context, d, res, op.Vd));
}
else
{
int elems = op.GetBytesCount() >> op.Size;
(int Qx, int Ix)[] tableTuples = new (int, int)[length];
for (int i = 0; i < length; i++)
{
tableTuples[i] = GetQuadwordAndSubindex(op.Vn + i, op.RegisterSize);
}
int byteLength = length * 8;
Operand res = GetVecA32(op.Qd);
Operand m = GetVecA32(op.Qm);
for (int index = 0; index < elems; index++)
{
Operand selectedIndex = context.ZeroExtend8(OperandType.I32, context.VectorExtract8(m, index + op.Im));
Operand inRange = context.ICompareLess(selectedIndex, Const(byteLength));
Operand elemRes = null; // Note: This is I64 for ease of calculation.
// TODO: Branching rather than conditional select.
// Get indexed byte.
// To simplify (ha) the il, we get bytes from every vector and use a nested conditional select to choose the right result.
// This does have to extract `length` times for every element but certainly not as bad as it could be.
// Which vector number is the index on.
Operand vecIndex = context.ShiftRightUI(selectedIndex, Const(3));
// What should we shift by to extract it.
Operand subVecIndexShift = context.ShiftLeft(context.BitwiseAnd(selectedIndex, Const(7)), Const(3));
for (int i = 0; i < length; i++)
{
(int qx, int ix) = tableTuples[i];
// Get the whole vector, we'll get a byte out of it.
Operand lookupResult;
if (qx == op.Qd)
{
// Result contains the current state of the vector.
lookupResult = context.VectorExtract(OperandType.I64, res, ix);
}
else
{
lookupResult = EmitVectorExtract32(context, qx, ix, 3, false); // I64
}
lookupResult = context.ShiftRightUI(lookupResult, subVecIndexShift); // Get the relevant byte from this vector.
if (i == 0)
{
elemRes = lookupResult; // First result is always default.
}
else
{
Operand isThisElem = context.ICompareEqual(vecIndex, Const(i));
elemRes = context.ConditionalSelect(isThisElem, lookupResult, elemRes);
}
}
Operand fallback = (extension) ? context.ZeroExtend32(OperandType.I64, EmitVectorExtract32(context, op.Qd, index + op.Id, 0, false)) : Const(0L);
res = EmitVectorInsert(context, res, context.ConditionalSelect(inRange, elemRes, fallback), index + op.Id, 0);
}
context.Copy(GetVecA32(op.Qd), res);
}
}
public static void Vtrn(ArmEmitterContext context)
{
OpCode32SimdCmpZ op = (OpCode32SimdCmpZ)context.CurrOp;
if (Optimizations.UseSsse3)
{
EmitVectorShuffleOpSimd32(context, (m, d) =>
{
Operand mask = null;
if (op.Size < 3)
{
long maskE0 = EvenMasks[op.Size];
long maskE1 = OddMasks[op.Size];
mask = X86GetScalar(context, maskE0);
mask = EmitVectorInsert(context, mask, Const(maskE1), 1, 3);
}
if (op.Size < 3)
{
d = context.AddIntrinsic(Intrinsic.X86Pshufb, d, mask);
m = context.AddIntrinsic(Intrinsic.X86Pshufb, m, mask);
}
Operand resD = context.AddIntrinsic(X86PunpcklInstruction[op.Size], d, m);
Operand resM = context.AddIntrinsic(X86PunpckhInstruction[op.Size], d, m);
return (resM, resD);
});
}
else
{
int elems = op.GetBytesCount() >> op.Size;
int pairs = elems >> 1;
bool overlap = op.Qm == op.Qd;
Operand resD = GetVecA32(op.Qd);
Operand resM = GetVecA32(op.Qm);
for (int index = 0; index < pairs; index++)
{
int pairIndex = index << 1;
Operand d2 = EmitVectorExtract32(context, op.Qd, pairIndex + 1 + op.Id, op.Size, false);
Operand m1 = EmitVectorExtract32(context, op.Qm, pairIndex + op.Im, op.Size, false);
resD = EmitVectorInsert(context, resD, m1, pairIndex + 1 + op.Id, op.Size);
if (overlap)
{
resM = resD;
}
resM = EmitVectorInsert(context, resM, d2, pairIndex + op.Im, op.Size);
if (overlap)
{
resD = resM;
}
}
context.Copy(GetVecA32(op.Qd), resD);
if (!overlap)
{
context.Copy(GetVecA32(op.Qm), resM);
}
}
}
public static void Vzip(ArmEmitterContext context)
{
OpCode32SimdCmpZ op = (OpCode32SimdCmpZ)context.CurrOp;
if (Optimizations.UseSse2)
{
EmitVectorShuffleOpSimd32(context, (m, d) =>
{
if (op.RegisterSize == RegisterSize.Simd128)
{
Operand resD = context.AddIntrinsic(X86PunpcklInstruction[op.Size], d, m);
Operand resM = context.AddIntrinsic(X86PunpckhInstruction[op.Size], d, m);
return (resM, resD);
}
else
{
Operand res = context.AddIntrinsic(X86PunpcklInstruction[op.Size], d, m);
Operand resD = context.AddIntrinsic(Intrinsic.X86Punpcklqdq, res, context.VectorZero());
Operand resM = context.AddIntrinsic(Intrinsic.X86Punpckhqdq, res, context.VectorZero());
return (resM, resD);
}
});
}
else
{
int elems = op.GetBytesCount() >> op.Size;
int pairs = elems >> 1;
bool overlap = op.Qm == op.Qd;
Operand resD = GetVecA32(op.Qd);
Operand resM = GetVecA32(op.Qm);
for (int index = 0; index < pairs; index++)
{
int pairIndex = index << 1;
Operand dRowD = EmitVectorExtract32(context, op.Qd, index + op.Id, op.Size, false);
Operand mRowD = EmitVectorExtract32(context, op.Qm, index + op.Im, op.Size, false);
Operand dRowM = EmitVectorExtract32(context, op.Qd, index + op.Id + pairs, op.Size, false);
Operand mRowM = EmitVectorExtract32(context, op.Qm, index + op.Im + pairs, op.Size, false);
resD = EmitVectorInsert(context, resD, dRowD, pairIndex + op.Id, op.Size);
resD = EmitVectorInsert(context, resD, mRowD, pairIndex + 1 + op.Id, op.Size);
if (overlap)
{
resM = resD;
}
resM = EmitVectorInsert(context, resM, dRowM, pairIndex + op.Im, op.Size);
resM = EmitVectorInsert(context, resM, mRowM, pairIndex + 1 + op.Im, op.Size);
if (overlap)
{
resD = resM;
}
}
context.Copy(GetVecA32(op.Qd), resD);
if (!overlap)
{
context.Copy(GetVecA32(op.Qm), resM);
}
}
}
public static void Vuzp(ArmEmitterContext context)
{
OpCode32SimdCmpZ op = (OpCode32SimdCmpZ)context.CurrOp;
if (Optimizations.UseSsse3)
{
EmitVectorShuffleOpSimd32(context, (m, d) =>
{
if (op.RegisterSize == RegisterSize.Simd128)
{
Operand mask = null;
if (op.Size < 3)
{
long maskE0 = EvenMasks[op.Size];
long maskE1 = OddMasks[op.Size];
mask = X86GetScalar(context, maskE0);
mask = EmitVectorInsert(context, mask, Const(maskE1), 1, 3);
d = context.AddIntrinsic(Intrinsic.X86Pshufb, d, mask);
m = context.AddIntrinsic(Intrinsic.X86Pshufb, m, mask);
}
Operand resD = context.AddIntrinsic(Intrinsic.X86Punpcklqdq, d, m);
Operand resM = context.AddIntrinsic(Intrinsic.X86Punpckhqdq, d, m);
return (resM, resD);
}
else
{
Intrinsic punpcklInst = X86PunpcklInstruction[op.Size];
Operand res = context.AddIntrinsic(punpcklInst, d, m);
if (op.Size < 2)
{
long maskE0 = _masksE0_Uzp[op.Size];
long maskE1 = _masksE1_Uzp[op.Size];
Operand mask = X86GetScalar(context, maskE0);
mask = EmitVectorInsert(context, mask, Const(maskE1), 1, 3);
res = context.AddIntrinsic(Intrinsic.X86Pshufb, res, mask);
}
Operand resD = context.AddIntrinsic(Intrinsic.X86Punpcklqdq, res, context.VectorZero());
Operand resM = context.AddIntrinsic(Intrinsic.X86Punpckhqdq, res, context.VectorZero());
return (resM, resD);
}
});
}
else
{
int elems = op.GetBytesCount() >> op.Size;
int pairs = elems >> 1;
bool overlap = op.Qm == op.Qd;
Operand resD = GetVecA32(op.Qd);
Operand resM = GetVecA32(op.Qm);
for (int index = 0; index < elems; index++)
{
Operand dIns, mIns;
if (index >= pairs)
{
int pairIndex = index - pairs;
dIns = EmitVectorExtract32(context, op.Qm, (pairIndex << 1) + op.Im, op.Size, false);
mIns = EmitVectorExtract32(context, op.Qm, ((pairIndex << 1) | 1) + op.Im, op.Size, false);
}
else
{
dIns = EmitVectorExtract32(context, op.Qd, (index << 1) + op.Id, op.Size, false);
mIns = EmitVectorExtract32(context, op.Qd, ((index << 1) | 1) + op.Id, op.Size, false);
}
resD = EmitVectorInsert(context, resD, dIns, index + op.Id, op.Size);
if (overlap)
{
resM = resD;
}
resM = EmitVectorInsert(context, resM, mIns, index + op.Im, op.Size);
if (overlap)
{
resD = resM;
}
}
context.Copy(GetVecA32(op.Qd), resD);
if (!overlap)
{
context.Copy(GetVecA32(op.Qm), resM);
}
}
}
private static void EmitVectorShuffleOpSimd32(ArmEmitterContext context, Func<Operand, Operand, (Operand, Operand)> shuffleFunc)
{
OpCode32Simd op = (OpCode32Simd)context.CurrOp;
Operand m = GetVecA32(op.Qm);
Operand d = GetVecA32(op.Qd);
Operand initialM = m;
Operand initialD = d;
if (!op.Q) // Register swap: move relevant doubleword to side 0, for consistency.
{
m = EmitMoveDoubleWordToSide(context, m, op.Vm, 0);
d = EmitMoveDoubleWordToSide(context, d, op.Vd, 0);
}
(Operand resM, Operand resD) = shuffleFunc(m, d);
bool overlap = op.Qm == op.Qd;
if (!op.Q) // Register insert.
{
resM = EmitDoubleWordInsert(context, initialM, EmitMoveDoubleWordToSide(context, resM, 0, op.Vm), op.Vm);
resD = EmitDoubleWordInsert(context, overlap ? resM : initialD, EmitMoveDoubleWordToSide(context, resD, 0, op.Vd), op.Vd);
}
if (!overlap)
{
context.Copy(initialM, resM);
}
context.Copy(initialD, resD);
}
}
}