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Fix Sshl_V; Add S/Uqrshl_V, S/Uqshl_V, S/Urshl_V; Add Tests. (#516) 

* Update OpCodeTable.cs

* Update InstEmitSimdShift.cs

* Update SoftFallback.cs

* Update CpuTestSimdReg.cs

* Nit.

* Update SoftFallback.cs

* Update Optimizations.cs

* Update InstEmitSimdLogical.cs

* Update InstEmitSimdArithmetic.cs
This commit is contained in:
LDj3SNuD 2018-12-02 01:34:43 +01:00 committed by gdkchan
parent c0dc0f2c3f
commit 5ed6e570cf
7 changed files with 716 additions and 132 deletions
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4
Decoders/OpCodeSimdFcond64.cs
View File

@ -10,8 +10,8 @@ namespace ChocolArm64.Decoders
public OpCodeSimdFcond64(Inst inst, long position, int opCode) : base(inst, position, opCode)
{
Nzcv = (opCode >> 0) & 0xf;
Nzcv = (opCode >> 0) & 0xf;
Cond = (Cond)((opCode >> 12) & 0xf);
}
}
}
}

29
Instructions/InstEmitSimdArithmetic.cs
View File

@ -1638,7 +1638,34 @@ namespace ChocolArm64.Instructions
public static void Neg_V(ILEmitterCtx context)
{
EmitVectorUnaryOpSx(context, () => context.Emit(OpCodes.Neg));
if (Optimizations.UseSse2)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
Type[] typesSub = new Type[] { VectorIntTypesPerSizeLog2[op.Size], VectorIntTypesPerSizeLog2[op.Size] };
string[] namesSzv = new string[] { nameof(VectorHelper.VectorSByteZero),
nameof(VectorHelper.VectorInt16Zero),
nameof(VectorHelper.VectorInt32Zero),
nameof(VectorHelper.VectorInt64Zero) };
VectorHelper.EmitCall(context, namesSzv[op.Size]);
EmitLdvecWithSignedCast(context, op.Rn, op.Size);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.Subtract), typesSub));
EmitStvecWithSignedCast(context, op.Rd, op.Size);
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
else
{
EmitVectorUnaryOpSx(context, () => context.Emit(OpCodes.Neg));
}
}
public static void Raddhn_V(ILEmitterCtx context)

255
Instructions/InstEmitSimdLogical.cs
View File

@ -3,6 +3,7 @@ using ChocolArm64.State;
using ChocolArm64.Translation;
using System;
using System.Reflection.Emit;
using System.Runtime.Intrinsics;
using System.Runtime.Intrinsics.X86;
using static ChocolArm64.Instructions.InstEmitSimdHelper;
@ -29,18 +30,14 @@ namespace ChocolArm64.Instructions
{
OpCodeSimdReg64 op = (OpCodeSimdReg64)context.CurrOp;
EmitLdvecWithUnsignedCast(context, op.Rm, op.Size);
EmitLdvecWithUnsignedCast(context, op.Rn, op.Size);
Type[] typesAndNot = new Type[] { typeof(Vector128<byte>), typeof(Vector128<byte>) };
Type[] types = new Type[]
{
VectorUIntTypesPerSizeLog2[op.Size],
VectorUIntTypesPerSizeLog2[op.Size]
};
EmitLdvecWithUnsignedCast(context, op.Rm, 0);
EmitLdvecWithUnsignedCast(context, op.Rn, 0);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.AndNot), types));
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.AndNot), typesAndNot));
EmitStvecWithUnsignedCast(context, op.Rd, op.Size);
EmitStvecWithUnsignedCast(context, op.Rd, 0);
if (op.RegisterSize == RegisterSize.Simd64)
{
@ -68,41 +65,34 @@ namespace ChocolArm64.Instructions
public static void Bif_V(ILEmitterCtx context)
{
EmitBitBif(context, true);
EmitBifBit(context, notRm: true);
}
public static void Bit_V(ILEmitterCtx context)
{
EmitBitBif(context, false);
EmitBifBit(context, notRm: false);
}
private static void EmitBitBif(ILEmitterCtx context, bool notRm)
private static void EmitBifBit(ILEmitterCtx context, bool notRm)
{
OpCodeSimdReg64 op = (OpCodeSimdReg64)context.CurrOp;
if (Optimizations.UseSse2)
{
Type[] types = new Type[]
{
VectorUIntTypesPerSizeLog2[op.Size],
VectorUIntTypesPerSizeLog2[op.Size]
};
Type[] typesXorAndNot = new Type[] { typeof(Vector128<byte>), typeof(Vector128<byte>) };
EmitLdvecWithUnsignedCast(context, op.Rm, op.Size);
EmitLdvecWithUnsignedCast(context, op.Rd, op.Size);
EmitLdvecWithUnsignedCast(context, op.Rn, op.Size);
string nameAndNot = notRm ? nameof(Sse2.AndNot) : nameof(Sse2.And);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.Xor), types));
EmitLdvecWithUnsignedCast(context, op.Rd, 0);
EmitLdvecWithUnsignedCast(context, op.Rm, 0);
EmitLdvecWithUnsignedCast(context, op.Rn, 0);
EmitLdvecWithUnsignedCast(context, op.Rd, 0);
string name = notRm ? nameof(Sse2.AndNot) : nameof(Sse2.And);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.Xor), typesXorAndNot));
context.EmitCall(typeof(Sse2).GetMethod(nameAndNot, typesXorAndNot));
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.Xor), typesXorAndNot));
context.EmitCall(typeof(Sse2).GetMethod(name, types));
EmitLdvecWithUnsignedCast(context, op.Rd, op.Size);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.Xor), types));
EmitStvecWithUnsignedCast(context, op.Rd, op.Size);
EmitStvecWithUnsignedCast(context, op.Rd, 0);
if (op.RegisterSize == RegisterSize.Simd64)
{
@ -111,17 +101,18 @@ namespace ChocolArm64.Instructions
}
else
{
int bytes = op.GetBitsCount() >> 3;
int elems = bytes >> op.Size;
int elems = op.RegisterSize == RegisterSize.Simd128 ? 2 : 1;
for (int index = 0; index < elems; index++)
{
EmitVectorExtractZx(context, op.Rd, index, op.Size);
EmitVectorExtractZx(context, op.Rn, index, op.Size);
EmitVectorExtractZx(context, op.Rd, index, 3);
context.Emit(OpCodes.Dup);
EmitVectorExtractZx(context, op.Rn, index, 3);
context.Emit(OpCodes.Xor);
EmitVectorExtractZx(context, op.Rm, index, op.Size);
EmitVectorExtractZx(context, op.Rm, index, 3);
if (notRm)
{
@ -130,11 +121,9 @@ namespace ChocolArm64.Instructions
context.Emit(OpCodes.And);
EmitVectorExtractZx(context, op.Rd, index, op.Size);
context.Emit(OpCodes.Xor);
EmitVectorInsert(context, op.Rd, index, op.Size);
EmitVectorInsert(context, op.Rd, index, 3);
}
if (op.RegisterSize == RegisterSize.Simd64)
@ -150,26 +139,22 @@ namespace ChocolArm64.Instructions
{
OpCodeSimdReg64 op = (OpCodeSimdReg64)context.CurrOp;
Type[] types = new Type[]
{
VectorUIntTypesPerSizeLog2[op.Size],
VectorUIntTypesPerSizeLog2[op.Size]
};
Type[] typesXorAnd = new Type[] { typeof(Vector128<byte>), typeof(Vector128<byte>) };
EmitLdvecWithUnsignedCast(context, op.Rn, op.Size);
EmitLdvecWithUnsignedCast(context, op.Rm, op.Size);
EmitLdvecWithUnsignedCast(context, op.Rm, 0);
context.Emit(OpCodes.Dup);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.Xor), types));
EmitLdvecWithUnsignedCast(context, op.Rn, 0);
EmitLdvecWithUnsignedCast(context, op.Rd, op.Size);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.Xor), typesXorAnd));
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.And), types));
EmitLdvecWithUnsignedCast(context, op.Rd, 0);
EmitLdvecWithUnsignedCast(context, op.Rm, op.Size);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.And), typesXorAnd));
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.Xor), types));
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.Xor), typesXorAnd));
EmitStvecWithUnsignedCast(context, op.Rd, op.Size);
EmitStvecWithUnsignedCast(context, op.Rd, 0);
if (op.RegisterSize == RegisterSize.Simd64)
{
@ -207,16 +192,66 @@ namespace ChocolArm64.Instructions
public static void Not_V(ILEmitterCtx context)
{
EmitVectorUnaryOpZx(context, () => context.Emit(OpCodes.Not));
if (Optimizations.UseSse2)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
Type[] typesSav = new Type[] { typeof(byte) };
Type[] typesAndNot = new Type[] { typeof(Vector128<byte>), typeof(Vector128<byte>) };
EmitLdvecWithUnsignedCast(context, op.Rn, 0);
context.EmitLdc_I4(byte.MaxValue);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetAllVector128), typesSav));
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.AndNot), typesAndNot));
EmitStvecWithUnsignedCast(context, op.Rd, 0);
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
else
{
EmitVectorUnaryOpZx(context, () => context.Emit(OpCodes.Not));
}
}
public static void Orn_V(ILEmitterCtx context)
{
EmitVectorBinaryOpZx(context, () =>
if (Optimizations.UseSse2)
{
context.Emit(OpCodes.Not);
context.Emit(OpCodes.Or);
});
OpCodeSimdReg64 op = (OpCodeSimdReg64)context.CurrOp;
Type[] typesSav = new Type[] { typeof(byte) };
Type[] typesAndNotOr = new Type[] { typeof(Vector128<byte>), typeof(Vector128<byte>) };
EmitLdvecWithUnsignedCast(context, op.Rn, 0);
EmitLdvecWithUnsignedCast(context, op.Rm, 0);
context.EmitLdc_I4(byte.MaxValue);
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetAllVector128), typesSav));
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.AndNot), typesAndNotOr));
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.Or), typesAndNotOr));
EmitStvecWithUnsignedCast(context, op.Rd, 0);
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
else
{
EmitVectorBinaryOpZx(context, () =>
{
context.Emit(OpCodes.Not);
context.Emit(OpCodes.Or);
});
}
}
public static void Orr_V(ILEmitterCtx context)
@ -263,28 +298,122 @@ namespace ChocolArm64.Instructions
public static void Rev16_V(ILEmitterCtx context)
{
EmitRev_V(context, containerSize: 1);
if (Optimizations.UseSsse3)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
Type[] typesSve = new Type[] { typeof(long), typeof(long) };
Type[] typesSfl = new Type[] { typeof(Vector128<sbyte>), typeof(Vector128<sbyte>) };
EmitLdvecWithSignedCast(context, op.Rn, 0); // value
context.EmitLdc_I8(14L << 56 | 15L << 48 | 12L << 40 | 13L << 32 | 10L << 24 | 11L << 16 | 08L << 8 | 09L << 0); // maskE1
context.EmitLdc_I8(06L << 56 | 07L << 48 | 04L << 40 | 05L << 32 | 02L << 24 | 03L << 16 | 00L << 8 | 01L << 0); // maskE0
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetVector128), typesSve));
context.EmitCall(typeof(Ssse3).GetMethod(nameof(Ssse3.Shuffle), typesSfl));
EmitStvecWithSignedCast(context, op.Rd, 0);
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
else
{
EmitRev_V(context, containerSize: 1);
}
}
public static void Rev32_V(ILEmitterCtx context)
{
EmitRev_V(context, containerSize: 2);
if (Optimizations.UseSsse3)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
Type[] typesSve = new Type[] { typeof(long), typeof(long) };
Type[] typesSfl = new Type[] { typeof(Vector128<sbyte>), typeof(Vector128<sbyte>) };
EmitLdvecWithSignedCast(context, op.Rn, op.Size); // value
if (op.Size == 0)
{
context.EmitLdc_I8(12L << 56 | 13L << 48 | 14L << 40 | 15L << 32 | 08L << 24 | 09L << 16 | 10L << 8 | 11L << 0); // maskE1
context.EmitLdc_I8(04L << 56 | 05L << 48 | 06L << 40 | 07L << 32 | 00L << 24 | 01L << 16 | 02L << 8 | 03L << 0); // maskE0
}
else /* if (op.Size == 1) */
{
context.EmitLdc_I8(13L << 56 | 12L << 48 | 15L << 40 | 14L << 32 | 09L << 24 | 08L << 16 | 11L << 8 | 10L << 0); // maskE1
context.EmitLdc_I8(05L << 56 | 04L << 48 | 07L << 40 | 06L << 32 | 01L << 24 | 00L << 16 | 03L << 8 | 02L << 0); // maskE0
}
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetVector128), typesSve));
context.EmitCall(typeof(Ssse3).GetMethod(nameof(Ssse3.Shuffle), typesSfl));
EmitStvecWithSignedCast(context, op.Rd, op.Size);
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
else
{
EmitRev_V(context, containerSize: 2);
}
}
public static void Rev64_V(ILEmitterCtx context)
{
EmitRev_V(context, containerSize: 3);
if (Optimizations.UseSsse3)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
Type[] typesSve = new Type[] { typeof(long), typeof(long) };
Type[] typesSfl = new Type[] { typeof(Vector128<sbyte>), typeof(Vector128<sbyte>) };
EmitLdvecWithSignedCast(context, op.Rn, op.Size); // value
if (op.Size == 0)
{
context.EmitLdc_I8(08L << 56 | 09L << 48 | 10L << 40 | 11L << 32 | 12L << 24 | 13L << 16 | 14L << 8 | 15L << 0); // maskE1
context.EmitLdc_I8(00L << 56 | 01L << 48 | 02L << 40 | 03L << 32 | 04L << 24 | 05L << 16 | 06L << 8 | 07L << 0); // maskE0
}
else if (op.Size == 1)
{
context.EmitLdc_I8(09L << 56 | 08L << 48 | 11L << 40 | 10L << 32 | 13L << 24 | 12L << 16 | 15L << 8 | 14L << 0); // maskE1
context.EmitLdc_I8(01L << 56 | 00L << 48 | 03L << 40 | 02L << 32 | 05L << 24 | 04L << 16 | 07L << 8 | 06L << 0); // maskE0
}
else /* if (op.Size == 2) */
{
context.EmitLdc_I8(11L << 56 | 10L << 48 | 09L << 40 | 08L << 32 | 15L << 24 | 14L << 16 | 13L << 8 | 12L << 0); // maskE1
context.EmitLdc_I8(03L << 56 | 02L << 48 | 01L << 40 | 00L << 32 | 07L << 24 | 06L << 16 | 05L << 8 | 04L << 0); // maskE0
}
context.EmitCall(typeof(Sse2).GetMethod(nameof(Sse2.SetVector128), typesSve));
context.EmitCall(typeof(Ssse3).GetMethod(nameof(Ssse3.Shuffle), typesSfl));
EmitStvecWithSignedCast(context, op.Rd, op.Size);
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
else
{
EmitRev_V(context, containerSize: 3);
}
}
private static void EmitRev_V(ILEmitterCtx context, int containerSize)
{
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
if (op.Size >= containerSize)
{
throw new InvalidOperationException();
}
int bytes = op.GetBitsCount() >> 3;
int elems = bytes >> op.Size;

273
Instructions/InstEmitSimdShift.cs
View File

@ -110,6 +110,34 @@ namespace ChocolArm64.Instructions
}
}
public static void Sqrshl_V(ILEmitterCtx context)
{
OpCodeSimdReg64 op = (OpCodeSimdReg64)context.CurrOp;
int bytes = op.GetBitsCount() >> 3;
int elems = bytes >> op.Size;
for (int index = 0; index < elems; index++)
{
EmitVectorExtractSx(context, op.Rn, index, op.Size);
EmitVectorExtractSx(context, op.Rm, index, op.Size);
context.Emit(OpCodes.Ldc_I4_1);
context.EmitLdc_I4(op.Size);
context.EmitLdarg(TranslatedSub.StateArgIdx);
SoftFallback.EmitCall(context, nameof(SoftFallback.SignedShlRegSatQ));
EmitVectorInsert(context, op.Rd, index, op.Size);
}
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
public static void Sqrshrn_S(ILEmitterCtx context)
{
EmitRoundShrImmSaturatingNarrowOp(context, ShrImmSaturatingNarrowFlags.ScalarSxSx);
@ -130,6 +158,34 @@ namespace ChocolArm64.Instructions
EmitRoundShrImmSaturatingNarrowOp(context, ShrImmSaturatingNarrowFlags.VectorSxZx);
}
public static void Sqshl_V(ILEmitterCtx context)
{
OpCodeSimdReg64 op = (OpCodeSimdReg64)context.CurrOp;
int bytes = op.GetBitsCount() >> 3;
int elems = bytes >> op.Size;
for (int index = 0; index < elems; index++)
{
EmitVectorExtractSx(context, op.Rn, index, op.Size);
EmitVectorExtractSx(context, op.Rm, index, op.Size);
context.Emit(OpCodes.Ldc_I4_0);
context.EmitLdc_I4(op.Size);
context.EmitLdarg(TranslatedSub.StateArgIdx);
SoftFallback.EmitCall(context, nameof(SoftFallback.SignedShlRegSatQ));
EmitVectorInsert(context, op.Rd, index, op.Size);
}
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
public static void Sqshrn_S(ILEmitterCtx context)
{
EmitShrImmSaturatingNarrowOp(context, ShrImmSaturatingNarrowFlags.ScalarSxSx);
@ -150,6 +206,32 @@ namespace ChocolArm64.Instructions
EmitShrImmSaturatingNarrowOp(context, ShrImmSaturatingNarrowFlags.VectorSxZx);
}
public static void Srshl_V(ILEmitterCtx context)
{
OpCodeSimdReg64 op = (OpCodeSimdReg64)context.CurrOp;
int bytes = op.GetBitsCount() >> 3;
int elems = bytes >> op.Size;
for (int index = 0; index < elems; index++)
{
EmitVectorExtractSx(context, op.Rn, index, op.Size);
EmitVectorExtractSx(context, op.Rm, index, op.Size);
context.Emit(OpCodes.Ldc_I4_1);
context.EmitLdc_I4(op.Size);
SoftFallback.EmitCall(context, nameof(SoftFallback.SignedShlReg));
EmitVectorInsert(context, op.Rd, index, op.Size);
}
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
public static void Srshr_S(ILEmitterCtx context)
{
EmitScalarShrImmOpSx(context, ShrImmFlags.Round);
@ -252,7 +334,28 @@ namespace ChocolArm64.Instructions
public static void Sshl_V(ILEmitterCtx context)
{
EmitVectorShl(context, signed: true);
OpCodeSimdReg64 op = (OpCodeSimdReg64)context.CurrOp;
int bytes = op.GetBitsCount() >> 3;
int elems = bytes >> op.Size;
for (int index = 0; index < elems; index++)
{
EmitVectorExtractSx(context, op.Rn, index, op.Size);
EmitVectorExtractSx(context, op.Rm, index, op.Size);
context.Emit(OpCodes.Ldc_I4_0);
context.EmitLdc_I4(op.Size);
SoftFallback.EmitCall(context, nameof(SoftFallback.SignedShlReg));
EmitVectorInsert(context, op.Rd, index, op.Size);
}
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
public static void Sshll_V(ILEmitterCtx context)
@ -330,6 +433,34 @@ namespace ChocolArm64.Instructions
}
}
public static void Uqrshl_V(ILEmitterCtx context)
{
OpCodeSimdReg64 op = (OpCodeSimdReg64)context.CurrOp;
int bytes = op.GetBitsCount() >> 3;
int elems = bytes >> op.Size;
for (int index = 0; index < elems; index++)
{
EmitVectorExtractZx(context, op.Rn, index, op.Size);
EmitVectorExtractZx(context, op.Rm, index, op.Size);
context.Emit(OpCodes.Ldc_I4_1);
context.EmitLdc_I4(op.Size);
context.EmitLdarg(TranslatedSub.StateArgIdx);
SoftFallback.EmitCall(context, nameof(SoftFallback.UnsignedShlRegSatQ));
EmitVectorInsert(context, op.Rd, index, op.Size);
}
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
public static void Uqrshrn_S(ILEmitterCtx context)
{
EmitRoundShrImmSaturatingNarrowOp(context, ShrImmSaturatingNarrowFlags.ScalarZxZx);
@ -340,6 +471,34 @@ namespace ChocolArm64.Instructions
EmitRoundShrImmSaturatingNarrowOp(context, ShrImmSaturatingNarrowFlags.VectorZxZx);
}
public static void Uqshl_V(ILEmitterCtx context)
{
OpCodeSimdReg64 op = (OpCodeSimdReg64)context.CurrOp;
int bytes = op.GetBitsCount() >> 3;
int elems = bytes >> op.Size;
for (int index = 0; index < elems; index++)
{
EmitVectorExtractZx(context, op.Rn, index, op.Size);
EmitVectorExtractZx(context, op.Rm, index, op.Size);
context.Emit(OpCodes.Ldc_I4_0);
context.EmitLdc_I4(op.Size);
context.EmitLdarg(TranslatedSub.StateArgIdx);
SoftFallback.EmitCall(context, nameof(SoftFallback.UnsignedShlRegSatQ));
EmitVectorInsert(context, op.Rd, index, op.Size);
}
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
public static void Uqshrn_S(ILEmitterCtx context)
{
EmitShrImmSaturatingNarrowOp(context, ShrImmSaturatingNarrowFlags.ScalarZxZx);
@ -350,6 +509,32 @@ namespace ChocolArm64.Instructions
EmitShrImmSaturatingNarrowOp(context, ShrImmSaturatingNarrowFlags.VectorZxZx);
}
public static void Urshl_V(ILEmitterCtx context)
{
OpCodeSimdReg64 op = (OpCodeSimdReg64)context.CurrOp;
int bytes = op.GetBitsCount() >> 3;
int elems = bytes >> op.Size;
for (int index = 0; index < elems; index++)
{
EmitVectorExtractZx(context, op.Rn, index, op.Size);
EmitVectorExtractZx(context, op.Rm, index, op.Size);
context.Emit(OpCodes.Ldc_I4_1);
context.EmitLdc_I4(op.Size);
SoftFallback.EmitCall(context, nameof(SoftFallback.UnsignedShlReg));
EmitVectorInsert(context, op.Rd, index, op.Size);
}
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
public static void Urshr_S(ILEmitterCtx context)
{
EmitScalarShrImmOpZx(context, ShrImmFlags.Round);
@ -450,7 +635,28 @@ namespace ChocolArm64.Instructions
public static void Ushl_V(ILEmitterCtx context)
{
EmitVectorShl(context, signed: false);
OpCodeSimdReg64 op = (OpCodeSimdReg64)context.CurrOp;
int bytes = op.GetBitsCount() >> 3;
int elems = bytes >> op.Size;
for (int index = 0; index < elems; index++)
{
EmitVectorExtractZx(context, op.Rn, index, op.Size);
EmitVectorExtractZx(context, op.Rm, index, op.Size);
context.Emit(OpCodes.Ldc_I4_0);
context.EmitLdc_I4(op.Size);
SoftFallback.EmitCall(context, nameof(SoftFallback.UnsignedShlReg));
EmitVectorInsert(context, op.Rd, index, op.Size);
}
if (op.RegisterSize == RegisterSize.Simd64)
{
EmitVectorZeroUpper(context, op.Rd);
}
}
public static void Ushll_V(ILEmitterCtx context)
@ -526,69 +732,6 @@ namespace ChocolArm64.Instructions
}
}
private static void EmitVectorShl(ILEmitterCtx context, bool signed)
{
//This instruction shifts the value on vector A by the number of bits
//specified on the signed, lower 8 bits of vector B. If the shift value
//is greater or equal to the data size of each lane, then the result is zero.
//Additionally, negative shifts produces right shifts by the negated shift value.
OpCodeSimd64 op = (OpCodeSimd64)context.CurrOp;
int maxShift = 8 << op.Size;
Action emit = () =>
{
ILLabel lblShl = new ILLabel();
ILLabel lblZero = new ILLabel();
ILLabel lblEnd = new ILLabel();
void EmitShift(OpCode ilOp)
{
context.Emit(OpCodes.Dup);
context.EmitLdc_I4(maxShift);
context.Emit(OpCodes.Bge_S, lblZero);
context.Emit(ilOp);
context.Emit(OpCodes.Br_S, lblEnd);
}
context.Emit(OpCodes.Conv_I1);
context.Emit(OpCodes.Dup);
context.EmitLdc_I4(0);
context.Emit(OpCodes.Bge_S, lblShl);
context.Emit(OpCodes.Neg);
EmitShift(signed
? OpCodes.Shr
: OpCodes.Shr_Un);
context.MarkLabel(lblShl);
EmitShift(OpCodes.Shl);
context.MarkLabel(lblZero);
context.Emit(OpCodes.Pop);
context.Emit(OpCodes.Pop);
context.EmitLdc_I8(0);
context.MarkLabel(lblEnd);
};
if (signed)
{
EmitVectorBinaryOpSx(context, emit);
}
else
{
EmitVectorBinaryOpZx(context, emit);
}
}
[Flags]
private enum ShrImmFlags
{

279
Instructions/SoftFallback.cs
View File

@ -16,6 +16,283 @@ namespace ChocolArm64.Instructions
context.EmitCall(typeof(SoftFallback), mthdName);
}
#region "ShlReg"
public static long SignedShlReg(long value, long shift, bool round, int size)
{
int eSize = 8 << size;
int shiftLsB = (sbyte)shift;
if (shiftLsB < 0)
{
return SignedShrReg(value, -shiftLsB, round, eSize);
}
else if (shiftLsB > 0)
{
if (shiftLsB >= eSize)
{
return 0L;
}
return value << shiftLsB;
}
else /* if (shiftLsB == 0) */
{
return value;
}
}
public static ulong UnsignedShlReg(ulong value, ulong shift, bool round, int size)
{
int eSize = 8 << size;
int shiftLsB = (sbyte)shift;
if (shiftLsB < 0)
{
return UnsignedShrReg(value, -shiftLsB, round, eSize);
}
else if (shiftLsB > 0)
{
if (shiftLsB >= eSize)
{
return 0UL;
}
return value << shiftLsB;
}
else /* if (shiftLsB == 0) */
{
return value;
}
}
public static long SignedShlRegSatQ(long value, long shift, bool round, int size, CpuThreadState state)
{
int eSize = 8 << size;
int shiftLsB = (sbyte)shift;
if (shiftLsB < 0)
{
return SignedShrReg(value, -shiftLsB, round, eSize);
}
else if (shiftLsB > 0)
{
if (shiftLsB >= eSize)
{
return SignedSignSatQ(value, eSize, state);
}
if (eSize == 64)
{
long shl = value << shiftLsB;
long shr = shl >> shiftLsB;
if (shr != value)
{
return SignedSignSatQ(value, eSize, state);
}
else /* if (shr == value) */
{
return shl;
}
}
else /* if (eSize != 64) */
{
return SignedSrcSignedDstSatQ(value << shiftLsB, size, state);
}
}
else /* if (shiftLsB == 0) */
{
return value;
}
}
public static ulong UnsignedShlRegSatQ(ulong value, ulong shift, bool round, int size, CpuThreadState state)
{
int eSize = 8 << size;
int shiftLsB = (sbyte)shift;
if (shiftLsB < 0)
{
return UnsignedShrReg(value, -shiftLsB, round, eSize);
}
else if (shiftLsB > 0)
{
if (shiftLsB >= eSize)
{
return UnsignedSignSatQ(value, eSize, state);
}
if (eSize == 64)
{
ulong shl = value << shiftLsB;
ulong shr = shl >> shiftLsB;
if (shr != value)
{
return UnsignedSignSatQ(value, eSize, state);
}
else /* if (shr == value) */
{
return shl;
}
}
else /* if (eSize != 64) */
{
return UnsignedSrcUnsignedDstSatQ(value << shiftLsB, size, state);
}
}
else /* if (shiftLsB == 0) */
{
return value;
}
}
private static long SignedShrReg(long value, int shift, bool round, int eSize) // shift := [1, 128]; eSize := {8, 16, 32, 64}.
{
if (round)
{
if (shift >= eSize)
{
return 0L;
}
long roundConst = 1L << (shift - 1);
long add = value + roundConst;
if (eSize == 64)
{
if ((~value & (value ^ add)) < 0L)
{
return (long)((ulong)add >> shift);
}
else
{
return add >> shift;
}
}
else /* if (eSize != 64) */
{
return add >> shift;
}
}
else /* if (!round) */
{
if (shift >= eSize)
{
if (value < 0L)
{
return -1L;
}
else /* if (value >= 0L) */
{
return 0L;
}
}
return value >> shift;
}
}
private static ulong UnsignedShrReg(ulong value, int shift, bool round, int eSize) // shift := [1, 128]; eSize := {8, 16, 32, 64}.
{
if (round)
{
if (shift > 64)
{
return 0UL;
}
ulong roundConst = 1UL << (shift - 1);
ulong add = value + roundConst;
if (eSize == 64)
{
if ((add < value) && (add < roundConst))
{
if (shift == 64)
{
return 1UL;
}
return (add >> shift) | (0x8000000000000000UL >> (shift - 1));
}
else
{
if (shift == 64)
{
return 0UL;
}
return add >> shift;
}
}
else /* if (eSize != 64) */
{
if (shift == 64)
{
return 0UL;
}
return add >> shift;
}
}
else /* if (!round) */
{
if (shift >= eSize)
{
return 0UL;
}
return value >> shift;
}
}
private static long SignedSignSatQ(long op, int eSize, CpuThreadState state) // eSize := {8, 16, 32, 64}.
{
long tMaxValue = (1L << (eSize - 1)) - 1L;
long tMinValue = -(1L << (eSize - 1));
if (op > 0L)
{
state.SetFpsrFlag(Fpsr.Qc);
return tMaxValue;
}
else if (op < 0L)
{
state.SetFpsrFlag(Fpsr.Qc);
return tMinValue;
}
else
{
return 0L;
}
}
private static ulong UnsignedSignSatQ(ulong op, int eSize, CpuThreadState state) // eSize := {8, 16, 32, 64}.
{
ulong tMaxValue = ulong.MaxValue >> (64 - eSize);
if (op > 0UL)
{
state.SetFpsrFlag(Fpsr.Qc);
return tMaxValue;
}
else
{
return 0UL;
}
}
#endregion
#region "ShrImm64"
public static long SignedShrImm64(long value, long roundConst, int shift)
{
@ -31,7 +308,7 @@ namespace ChocolArm64.Instructions
{
return -1L;
}
else
else /* if (value >= 0L) */
{
return 0L;
}

6
OpCodeTable.cs
View File

@ -427,10 +427,12 @@ namespace ChocolArm64
SetA64("01111110101xxxxx101101xxxxxxxxxx", InstEmit.Sqrdmulh_S, typeof(OpCodeSimdReg64));
SetA64("0x101110011xxxxx101101xxxxxxxxxx", InstEmit.Sqrdmulh_V, typeof(OpCodeSimdReg64));
SetA64("0x101110101xxxxx101101xxxxxxxxxx", InstEmit.Sqrdmulh_V, typeof(OpCodeSimdReg64));
SetA64("0>001110<<1xxxxx010111xxxxxxxxxx", InstEmit.Sqrshl_V, typeof(OpCodeSimdReg64));
SetA64("0101111100>>>xxx100111xxxxxxxxxx", InstEmit.Sqrshrn_S, typeof(OpCodeSimdShImm64));
SetA64("0x00111100>>>xxx100111xxxxxxxxxx", InstEmit.Sqrshrn_V, typeof(OpCodeSimdShImm64));
SetA64("0111111100>>>xxx100011xxxxxxxxxx", InstEmit.Sqrshrun_S, typeof(OpCodeSimdShImm64));
SetA64("0x10111100>>>xxx100011xxxxxxxxxx", InstEmit.Sqrshrun_V, typeof(OpCodeSimdShImm64));
SetA64("0>001110<<1xxxxx010011xxxxxxxxxx", InstEmit.Sqshl_V, typeof(OpCodeSimdReg64));
SetA64("0101111100>>>xxx100101xxxxxxxxxx", InstEmit.Sqshrn_S, typeof(OpCodeSimdShImm64));
SetA64("0x00111100>>>xxx100101xxxxxxxxxx", InstEmit.Sqshrn_V, typeof(OpCodeSimdShImm64));
SetA64("0111111100>>>xxx100001xxxxxxxxxx", InstEmit.Sqshrun_S, typeof(OpCodeSimdShImm64));
@ -442,6 +444,7 @@ namespace ChocolArm64
SetA64("01111110<<100001001010xxxxxxxxxx", InstEmit.Sqxtun_S, typeof(OpCodeSimd64));
SetA64("0x101110<<100001001010xxxxxxxxxx", InstEmit.Sqxtun_V, typeof(OpCodeSimd64));
SetA64("0x001110<<1xxxxx000101xxxxxxxxxx", InstEmit.Srhadd_V, typeof(OpCodeSimdReg64));
SetA64("0>001110<<1xxxxx010101xxxxxxxxxx", InstEmit.Srshl_V, typeof(OpCodeSimdReg64));
SetA64("0101111101xxxxxx001001xxxxxxxxxx", InstEmit.Srshr_S, typeof(OpCodeSimdShImm64));
SetA64("0x00111100>>>xxx001001xxxxxxxxxx", InstEmit.Srshr_V, typeof(OpCodeSimdShImm64));
SetA64("0100111101xxxxxx001001xxxxxxxxxx", InstEmit.Srshr_V, typeof(OpCodeSimdShImm64));
@ -501,8 +504,10 @@ namespace ChocolArm64
SetA64("0x101110<<1xxxxx110000xxxxxxxxxx", InstEmit.Umull_V, typeof(OpCodeSimdReg64));
SetA64("01111110xx1xxxxx000011xxxxxxxxxx", InstEmit.Uqadd_S, typeof(OpCodeSimdReg64));
SetA64("0>101110<<1xxxxx000011xxxxxxxxxx", InstEmit.Uqadd_V, typeof(OpCodeSimdReg64));
SetA64("0>101110<<1xxxxx010111xxxxxxxxxx", InstEmit.Uqrshl_V, typeof(OpCodeSimdReg64));
SetA64("0111111100>>>xxx100111xxxxxxxxxx", InstEmit.Uqrshrn_S, typeof(OpCodeSimdShImm64));
SetA64("0x10111100>>>xxx100111xxxxxxxxxx", InstEmit.Uqrshrn_V, typeof(OpCodeSimdShImm64));
SetA64("0>101110<<1xxxxx010011xxxxxxxxxx", InstEmit.Uqshl_V, typeof(OpCodeSimdReg64));
SetA64("0111111100>>>xxx100101xxxxxxxxxx", InstEmit.Uqshrn_S, typeof(OpCodeSimdShImm64));
SetA64("0x10111100>>>xxx100101xxxxxxxxxx", InstEmit.Uqshrn_V, typeof(OpCodeSimdShImm64));
SetA64("01111110xx1xxxxx001011xxxxxxxxxx", InstEmit.Uqsub_S, typeof(OpCodeSimdReg64));
@ -510,6 +515,7 @@ namespace ChocolArm64
SetA64("01111110<<100001010010xxxxxxxxxx", InstEmit.Uqxtn_S, typeof(OpCodeSimd64));
SetA64("0x101110<<100001010010xxxxxxxxxx", InstEmit.Uqxtn_V, typeof(OpCodeSimd64));
SetA64("0x101110<<1xxxxx000101xxxxxxxxxx", InstEmit.Urhadd_V, typeof(OpCodeSimdReg64));
SetA64("0>101110<<1xxxxx010101xxxxxxxxxx", InstEmit.Urshl_V, typeof(OpCodeSimdReg64));
SetA64("0111111101xxxxxx001001xxxxxxxxxx", InstEmit.Urshr_S, typeof(OpCodeSimdShImm64));
SetA64("0x10111100>>>xxx001001xxxxxxxxxx", InstEmit.Urshr_V, typeof(OpCodeSimdShImm64));
SetA64("0110111101xxxxxx001001xxxxxxxxxx", InstEmit.Urshr_V, typeof(OpCodeSimdShImm64));

2
Optimizations.cs
View File

@ -8,11 +8,13 @@ public static class Optimizations
private static bool _useSseIfAvailable = true;
private static bool _useSse2IfAvailable = true;
private static bool _useSsse3IfAvailable = true;
private static bool _useSse41IfAvailable = true;
private static bool _useSse42IfAvailable = true;
internal static bool UseSse = (_useAllSseIfAvailable && _useSseIfAvailable) && Sse.IsSupported;
internal static bool UseSse2 = (_useAllSseIfAvailable && _useSse2IfAvailable) && Sse2.IsSupported;
internal static bool UseSsse3 = (_useAllSseIfAvailable && _useSsse3IfAvailable) && Ssse3.IsSupported;
internal static bool UseSse41 = (_useAllSseIfAvailable && _useSse41IfAvailable) && Sse41.IsSupported;
internal static bool UseSse42 = (_useAllSseIfAvailable && _useSse42IfAvailable) && Sse42.IsSupported;
}