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https://github.com/Ryujinx/Ryujinx.git
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9db73f74cf
* ARMeilleure: Respect Fz flag for all floating point operations. This is a change in strategy for emulating the Fz FPCR flag. Before, it was set before instructions that "needed it" and reset after. However, this missed a few hot instructions like the multiplication instruction, and the entirety of A32. The new strategy is to set the Fz flag only in the following circumstances: - Set to match FPCR before translated functions/loop are executed. - Reset when calling SoftFloat methods, set when returning. - Reset when exiting execution. This allows us to remove the code around the existing Fz aware instructions, and get the accuracy benefits on all floating point instructions executed while in translated code. Single step executions now need to be called with a context wrapper - right now it just contains the Fz flag initialization, and won't actually do anything on ARM. This fixes a bug in Breath of the Wild where some physics interactions could randomly crash the game due to subnormal values not flushing to zero. This is draft right now because I need to answer the questions: - Does dotnet avoid changing the value of Mxcsr? - Is it a good idea to assume that? Or should the flag set/restore be done on every managed method call, not just softfloat? - If we assume that, do we want a unit test to verify the behaviour? I recommend testing a bunch of games, especially games affected when this was originally added, such as #1611. * Remove unused method * Use FMA for Fmadd, Fmsub, Fnmadd, Fnmsub, Fmla, Fmls ...when available. Similar implementation to A32 * Use FMA for Frecps, Frsqrts * Don't set DAZ. * Add round mode to ARM FP mode * Fix mistakes * Add test for FP state when calling managed methods * Add explanatory comment to test. * Cleanup * Add A64 FPCR flags * Vrintx_S A32 fast path on A64 backend * Address feedback 1, re-enable DAZ * Fix FMA instructions By Elem * Address feedback
1286 lines
46 KiB
C#
1286 lines
46 KiB
C#
using ARMeilleure.Decoders;
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using ARMeilleure.IntermediateRepresentation;
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using ARMeilleure.Translation;
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using System;
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using System.Diagnostics;
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using System.Reflection;
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using static ARMeilleure.Instructions.InstEmitHelper;
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using static ARMeilleure.Instructions.InstEmitSimdHelper;
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using static ARMeilleure.IntermediateRepresentation.Operand.Factory;
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namespace ARMeilleure.Instructions
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{
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using Func1I = Func<Operand, Operand>;
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using Func2I = Func<Operand, Operand, Operand>;
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using Func3I = Func<Operand, Operand, Operand, Operand>;
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static class InstEmitSimdHelper32
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{
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public static (int, int) GetQuadwordAndSubindex(int index, RegisterSize size)
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{
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switch (size)
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{
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case RegisterSize.Simd128:
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return (index >> 1, 0);
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case RegisterSize.Simd64:
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case RegisterSize.Int64:
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return (index >> 1, index & 1);
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case RegisterSize.Int32:
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return (index >> 2, index & 3);
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}
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throw new ArgumentException("Unrecognized Vector Register Size.");
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}
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public static Operand ExtractScalar(ArmEmitterContext context, OperandType type, int reg)
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{
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Debug.Assert(type != OperandType.V128);
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if (type == OperandType.FP64 || type == OperandType.I64)
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{
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// From dreg.
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return context.VectorExtract(type, GetVecA32(reg >> 1), reg & 1);
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}
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else
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{
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// From sreg.
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return context.VectorExtract(type, GetVecA32(reg >> 2), reg & 3);
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}
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}
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public static void InsertScalar(ArmEmitterContext context, int reg, Operand value)
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{
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Debug.Assert(value.Type != OperandType.V128);
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Operand vec, insert;
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if (value.Type == OperandType.FP64 || value.Type == OperandType.I64)
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{
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// From dreg.
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vec = GetVecA32(reg >> 1);
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insert = context.VectorInsert(vec, value, reg & 1);
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}
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else
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{
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// From sreg.
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vec = GetVecA32(reg >> 2);
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insert = context.VectorInsert(vec, value, reg & 3);
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}
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context.Copy(vec, insert);
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}
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public static Operand ExtractScalar16(ArmEmitterContext context, int reg, bool top)
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{
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return context.VectorExtract16(GetVecA32(reg >> 2), ((reg & 3) << 1) | (top ? 1 : 0));
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}
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public static void InsertScalar16(ArmEmitterContext context, int reg, bool top, Operand value)
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{
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Debug.Assert(value.Type == OperandType.FP32 || value.Type == OperandType.I32);
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Operand vec, insert;
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vec = GetVecA32(reg >> 2);
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insert = context.VectorInsert16(vec, value, ((reg & 3) << 1) | (top ? 1 : 0));
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context.Copy(vec, insert);
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}
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public static Operand ExtractElement(ArmEmitterContext context, int reg, int size, bool signed)
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{
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return EmitVectorExtract32(context, reg >> (4 - size), reg & ((16 >> size) - 1), size, signed);
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}
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public static void EmitVectorImmUnaryOp32(ArmEmitterContext context, Func1I emit)
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{
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IOpCode32SimdImm op = (IOpCode32SimdImm)context.CurrOp;
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Operand imm = Const(op.Immediate);
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int elems = op.Elems;
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(int index, int subIndex) = GetQuadwordAndSubindex(op.Vd, op.RegisterSize);
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Operand vec = GetVecA32(index);
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Operand res = vec;
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for (int item = 0; item < elems; item++)
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{
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res = EmitVectorInsert(context, res, emit(imm), item + subIndex * elems, op.Size);
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}
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context.Copy(vec, res);
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}
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public static void EmitScalarUnaryOpF32(ArmEmitterContext context, Func1I emit)
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{
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OpCode32SimdS op = (OpCode32SimdS)context.CurrOp;
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OperandType type = (op.Size & 1) != 0 ? OperandType.FP64 : OperandType.FP32;
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Operand m = ExtractScalar(context, type, op.Vm);
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InsertScalar(context, op.Vd, emit(m));
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}
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public static void EmitScalarBinaryOpF32(ArmEmitterContext context, Func2I emit)
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{
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OpCode32SimdRegS op = (OpCode32SimdRegS)context.CurrOp;
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OperandType type = (op.Size & 1) != 0 ? OperandType.FP64 : OperandType.FP32;
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Operand n = ExtractScalar(context, type, op.Vn);
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Operand m = ExtractScalar(context, type, op.Vm);
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InsertScalar(context, op.Vd, emit(n, m));
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}
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public static void EmitScalarBinaryOpI32(ArmEmitterContext context, Func2I emit)
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{
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OpCode32SimdRegS op = (OpCode32SimdRegS)context.CurrOp;
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OperandType type = (op.Size & 1) != 0 ? OperandType.I64 : OperandType.I32;
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if (op.Size < 2)
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{
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throw new NotSupportedException("Cannot perform a scalar SIMD operation on integers smaller than 32 bits.");
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}
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Operand n = ExtractScalar(context, type, op.Vn);
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Operand m = ExtractScalar(context, type, op.Vm);
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InsertScalar(context, op.Vd, emit(n, m));
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}
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public static void EmitScalarTernaryOpF32(ArmEmitterContext context, Func3I emit)
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{
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OpCode32SimdRegS op = (OpCode32SimdRegS)context.CurrOp;
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OperandType type = (op.Size & 1) != 0 ? OperandType.FP64 : OperandType.FP32;
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Operand a = ExtractScalar(context, type, op.Vd);
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Operand n = ExtractScalar(context, type, op.Vn);
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Operand m = ExtractScalar(context, type, op.Vm);
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InsertScalar(context, op.Vd, emit(a, n, m));
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}
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public static void EmitVectorUnaryOpF32(ArmEmitterContext context, Func1I emit)
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{
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OpCode32Simd op = (OpCode32Simd)context.CurrOp;
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int sizeF = op.Size & 1;
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OperandType type = sizeF != 0 ? OperandType.FP64 : OperandType.FP32;
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int elems = op.GetBytesCount() >> sizeF + 2;
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Operand res = GetVecA32(op.Qd);
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for (int index = 0; index < elems; index++)
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{
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Operand me = context.VectorExtract(type, GetVecA32(op.Qm), op.Fm + index);
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res = context.VectorInsert(res, emit(me), op.Fd + index);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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public static void EmitVectorBinaryOpF32(ArmEmitterContext context, Func2I emit)
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{
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OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
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int sizeF = op.Size & 1;
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OperandType type = sizeF != 0 ? OperandType.FP64 : OperandType.FP32;
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int elems = op.GetBytesCount() >> (sizeF + 2);
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Operand res = GetVecA32(op.Qd);
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for (int index = 0; index < elems; index++)
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{
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Operand ne = context.VectorExtract(type, GetVecA32(op.Qn), op.Fn + index);
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Operand me = context.VectorExtract(type, GetVecA32(op.Qm), op.Fm + index);
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res = context.VectorInsert(res, emit(ne, me), op.Fd + index);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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public static void EmitVectorTernaryOpF32(ArmEmitterContext context, Func3I emit)
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{
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OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
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int sizeF = op.Size & 1;
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OperandType type = sizeF != 0 ? OperandType.FP64 : OperandType.FP32;
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int elems = op.GetBytesCount() >> sizeF + 2;
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Operand res = GetVecA32(op.Qd);
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for (int index = 0; index < elems; index++)
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{
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Operand de = context.VectorExtract(type, GetVecA32(op.Qd), op.Fd + index);
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Operand ne = context.VectorExtract(type, GetVecA32(op.Qn), op.Fn + index);
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Operand me = context.VectorExtract(type, GetVecA32(op.Qm), op.Fm + index);
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res = context.VectorInsert(res, emit(de, ne, me), op.Fd + index);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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// Integer
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public static void EmitVectorUnaryAccumulateOpI32(ArmEmitterContext context, Func1I emit, bool signed)
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{
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OpCode32Simd op = (OpCode32Simd)context.CurrOp;
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Operand res = GetVecA32(op.Qd);
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int elems = op.GetBytesCount() >> op.Size;
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for (int index = 0; index < elems; index++)
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{
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Operand de = EmitVectorExtract32(context, op.Qd, op.Id + index, op.Size, signed);
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Operand me = EmitVectorExtract32(context, op.Qm, op.Im + index, op.Size, signed);
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res = EmitVectorInsert(context, res, context.Add(de, emit(me)), op.Id + index, op.Size);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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public static void EmitVectorUnaryOpI32(ArmEmitterContext context, Func1I emit, bool signed)
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{
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OpCode32Simd op = (OpCode32Simd)context.CurrOp;
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Operand res = GetVecA32(op.Qd);
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int elems = op.GetBytesCount() >> op.Size;
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for (int index = 0; index < elems; index++)
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{
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Operand me = EmitVectorExtract32(context, op.Qm, op.Im + index, op.Size, signed);
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res = EmitVectorInsert(context, res, emit(me), op.Id + index, op.Size);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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public static void EmitVectorBinaryOpI32(ArmEmitterContext context, Func2I emit, bool signed)
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{
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OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
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Operand res = GetVecA32(op.Qd);
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int elems = op.GetBytesCount() >> op.Size;
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for (int index = 0; index < elems; index++)
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{
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Operand ne = EmitVectorExtract32(context, op.Qn, op.In + index, op.Size, signed);
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Operand me = EmitVectorExtract32(context, op.Qm, op.Im + index, op.Size, signed);
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res = EmitVectorInsert(context, res, emit(ne, me), op.Id + index, op.Size);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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public static void EmitVectorBinaryLongOpI32(ArmEmitterContext context, Func2I emit, bool signed)
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{
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OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
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Operand res = context.VectorZero();
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int elems = op.GetBytesCount() >> op.Size;
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for (int index = 0; index < elems; index++)
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{
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Operand ne = EmitVectorExtract32(context, op.Qn, op.In + index, op.Size, signed);
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Operand me = EmitVectorExtract32(context, op.Qm, op.Im + index, op.Size, signed);
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if (op.Size == 2)
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{
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ne = signed ? context.SignExtend32(OperandType.I64, ne) : context.ZeroExtend32(OperandType.I64, ne);
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me = signed ? context.SignExtend32(OperandType.I64, me) : context.ZeroExtend32(OperandType.I64, me);
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}
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res = EmitVectorInsert(context, res, emit(ne, me), index, op.Size + 1);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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public static void EmitVectorBinaryWideOpI32(ArmEmitterContext context, Func2I emit, bool signed)
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{
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OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
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Operand res = context.VectorZero();
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int elems = op.GetBytesCount() >> op.Size;
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for (int index = 0; index < elems; index++)
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{
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Operand ne = EmitVectorExtract32(context, op.Qn, op.In + index, op.Size + 1, signed);
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Operand me = EmitVectorExtract32(context, op.Qm, op.Im + index, op.Size, signed);
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if (op.Size == 2)
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{
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me = signed ? context.SignExtend32(OperandType.I64, me) : context.ZeroExtend32(OperandType.I64, me);
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}
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res = EmitVectorInsert(context, res, emit(ne, me), index, op.Size + 1);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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public static void EmitVectorImmBinaryQdQmOpZx32(ArmEmitterContext context, Func2I emit)
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{
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EmitVectorImmBinaryQdQmOpI32(context, emit, false);
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}
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public static void EmitVectorImmBinaryQdQmOpSx32(ArmEmitterContext context, Func2I emit)
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{
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EmitVectorImmBinaryQdQmOpI32(context, emit, true);
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}
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public static void EmitVectorImmBinaryQdQmOpI32(ArmEmitterContext context, Func2I emit, bool signed)
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{
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OpCode32SimdShImm op = (OpCode32SimdShImm)context.CurrOp;
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Operand res = GetVecA32(op.Qd);
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int elems = op.GetBytesCount() >> op.Size;
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for (int index = 0; index < elems; index++)
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{
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Operand de = EmitVectorExtract32(context, op.Qd, op.Id + index, op.Size, signed);
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Operand me = EmitVectorExtract32(context, op.Qm, op.Im + index, op.Size, signed);
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res = EmitVectorInsert(context, res, emit(de, me), op.Id + index, op.Size);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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public static void EmitVectorTernaryLongOpI32(ArmEmitterContext context, Func3I emit, bool signed)
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{
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OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
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Operand res = context.VectorZero();
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int elems = op.GetBytesCount() >> op.Size;
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for (int index = 0; index < elems; index++)
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{
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Operand de = EmitVectorExtract32(context, op.Qd, op.Id + index, op.Size + 1, signed);
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Operand ne = EmitVectorExtract32(context, op.Qn, op.In + index, op.Size, signed);
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Operand me = EmitVectorExtract32(context, op.Qm, op.Im + index, op.Size, signed);
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if (op.Size == 2)
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{
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ne = signed ? context.SignExtend32(OperandType.I64, ne) : context.ZeroExtend32(OperandType.I64, ne);
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me = signed ? context.SignExtend32(OperandType.I64, me) : context.ZeroExtend32(OperandType.I64, me);
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}
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res = EmitVectorInsert(context, res, emit(de, ne, me), index, op.Size + 1);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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public static void EmitVectorTernaryOpI32(ArmEmitterContext context, Func3I emit, bool signed)
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{
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OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
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Operand res = GetVecA32(op.Qd);
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int elems = op.GetBytesCount() >> op.Size;
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for (int index = 0; index < elems; index++)
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{
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Operand de = EmitVectorExtract32(context, op.Qd, op.Id + index, op.Size, signed);
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Operand ne = EmitVectorExtract32(context, op.Qn, op.In + index, op.Size, signed);
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Operand me = EmitVectorExtract32(context, op.Qm, op.Im + index, op.Size, signed);
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res = EmitVectorInsert(context, res, emit(de, ne, me), op.Id + index, op.Size);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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public static void EmitVectorUnaryOpSx32(ArmEmitterContext context, Func1I emit)
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{
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EmitVectorUnaryOpI32(context, emit, true);
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}
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public static void EmitVectorUnaryOpSx32(ArmEmitterContext context, Func1I emit, bool accumulate)
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{
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if (accumulate)
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{
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EmitVectorUnaryAccumulateOpI32(context, emit, true);
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}
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else
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{
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EmitVectorUnaryOpI32(context, emit, true);
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}
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}
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public static void EmitVectorBinaryOpSx32(ArmEmitterContext context, Func2I emit)
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{
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EmitVectorBinaryOpI32(context, emit, true);
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}
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public static void EmitVectorTernaryOpSx32(ArmEmitterContext context, Func3I emit)
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{
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EmitVectorTernaryOpI32(context, emit, true);
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}
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public static void EmitVectorUnaryOpZx32(ArmEmitterContext context, Func1I emit)
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{
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EmitVectorUnaryOpI32(context, emit, false);
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}
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public static void EmitVectorUnaryOpZx32(ArmEmitterContext context, Func1I emit, bool accumulate)
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|
{
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if (accumulate)
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{
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EmitVectorUnaryAccumulateOpI32(context, emit, false);
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}
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else
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|
{
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EmitVectorUnaryOpI32(context, emit, false);
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}
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|
}
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|
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|
public static void EmitVectorBinaryOpZx32(ArmEmitterContext context, Func2I emit)
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|
{
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EmitVectorBinaryOpI32(context, emit, false);
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}
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|
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|
public static void EmitVectorTernaryOpZx32(ArmEmitterContext context, Func3I emit)
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|
{
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EmitVectorTernaryOpI32(context, emit, false);
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}
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// Vector by scalar
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public static void EmitVectorByScalarOpF32(ArmEmitterContext context, Func2I emit)
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|
{
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OpCode32SimdRegElem op = (OpCode32SimdRegElem)context.CurrOp;
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int sizeF = op.Size & 1;
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OperandType type = sizeF != 0 ? OperandType.FP64 : OperandType.FP32;
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int elems = op.GetBytesCount() >> sizeF + 2;
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Operand m = ExtractScalar(context, type, op.Vm);
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Operand res = GetVecA32(op.Qd);
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for (int index = 0; index < elems; index++)
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{
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Operand ne = context.VectorExtract(type, GetVecA32(op.Qn), op.Fn + index);
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res = context.VectorInsert(res, emit(ne, m), op.Fd + index);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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public static void EmitVectorByScalarOpI32(ArmEmitterContext context, Func2I emit, bool signed)
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|
{
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|
OpCode32SimdRegElem op = (OpCode32SimdRegElem)context.CurrOp;
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Operand m = ExtractElement(context, op.Vm, op.Size, signed);
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Operand res = GetVecA32(op.Qd);
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int elems = op.GetBytesCount() >> op.Size;
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for (int index = 0; index < elems; index++)
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{
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Operand ne = EmitVectorExtract32(context, op.Qn, op.In + index, op.Size, signed);
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res = EmitVectorInsert(context, res, emit(ne, m), op.Id + index, op.Size);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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public static void EmitVectorByScalarLongOpI32(ArmEmitterContext context, Func2I emit, bool signed)
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|
{
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OpCode32SimdRegElem op = (OpCode32SimdRegElem)context.CurrOp;
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Operand m = ExtractElement(context, op.Vm, op.Size, signed);
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if (op.Size == 2)
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{
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m = signed ? context.SignExtend32(OperandType.I64, m) : context.ZeroExtend32(OperandType.I64, m);
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}
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Operand res = context.VectorZero();
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int elems = op.GetBytesCount() >> op.Size;
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for (int index = 0; index < elems; index++)
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{
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Operand ne = EmitVectorExtract32(context, op.Qn, op.In + index, op.Size, signed);
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|
if (op.Size == 2)
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{
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ne = signed ? context.SignExtend32(OperandType.I64, ne) : context.ZeroExtend32(OperandType.I64, ne);
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}
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res = EmitVectorInsert(context, res, emit(ne, m), index, op.Size + 1);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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public static void EmitVectorsByScalarOpF32(ArmEmitterContext context, Func3I emit)
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{
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OpCode32SimdRegElem op = (OpCode32SimdRegElem)context.CurrOp;
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int sizeF = op.Size & 1;
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OperandType type = sizeF != 0 ? OperandType.FP64 : OperandType.FP32;
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int elems = op.GetBytesCount() >> sizeF + 2;
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Operand m = ExtractScalar(context, type, op.Vm);
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Operand res = GetVecA32(op.Qd);
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for (int index = 0; index < elems; index++)
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{
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Operand de = context.VectorExtract(type, GetVecA32(op.Qd), op.Fd + index);
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Operand ne = context.VectorExtract(type, GetVecA32(op.Qn), op.Fn + index);
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res = context.VectorInsert(res, emit(de, ne, m), op.Fd + index);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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public static void EmitVectorsByScalarOpI32(ArmEmitterContext context, Func3I emit, bool signed)
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|
{
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|
OpCode32SimdRegElem op = (OpCode32SimdRegElem)context.CurrOp;
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Operand m = EmitVectorExtract32(context, op.Vm >> (4 - op.Size), op.Vm & ((1 << (4 - op.Size)) - 1), op.Size, signed);
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Operand res = GetVecA32(op.Qd);
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int elems = op.GetBytesCount() >> op.Size;
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for (int index = 0; index < elems; index++)
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{
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Operand de = EmitVectorExtract32(context, op.Qd, op.Id + index, op.Size, signed);
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Operand ne = EmitVectorExtract32(context, op.Qn, op.In + index, op.Size, signed);
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res = EmitVectorInsert(context, res, emit(de, ne, m), op.Id + index, op.Size);
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}
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context.Copy(GetVecA32(op.Qd), res);
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}
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// Pairwise
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public static void EmitVectorPairwiseOpF32(ArmEmitterContext context, Func2I emit)
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{
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OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
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int sizeF = op.Size & 1;
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OperandType type = sizeF != 0 ? OperandType.FP64 : OperandType.FP32;
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int elems = op.GetBytesCount() >> (sizeF + 2);
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int pairs = elems >> 1;
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Operand res = GetVecA32(op.Qd);
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Operand mvec = GetVecA32(op.Qm);
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Operand nvec = GetVecA32(op.Qn);
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for (int index = 0; index < pairs; index++)
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{
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int pairIndex = index << 1;
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Operand n1 = context.VectorExtract(type, nvec, op.Fn + pairIndex);
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Operand n2 = context.VectorExtract(type, nvec, op.Fn + pairIndex + 1);
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res = context.VectorInsert(res, emit(n1, n2), op.Fd + index);
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Operand m1 = context.VectorExtract(type, mvec, op.Fm + pairIndex);
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Operand m2 = context.VectorExtract(type, mvec, op.Fm + pairIndex + 1);
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|
res = context.VectorInsert(res, emit(m1, m2), op.Fd + index + pairs);
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}
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|
context.Copy(GetVecA32(op.Qd), res);
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}
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public static void EmitVectorPairwiseOpI32(ArmEmitterContext context, Func2I emit, bool signed)
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{
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OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
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|
int elems = op.GetBytesCount() >> op.Size;
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int pairs = elems >> 1;
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|
Operand res = GetVecA32(op.Qd);
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|
for (int index = 0; index < pairs; index++)
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{
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int pairIndex = index << 1;
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Operand n1 = EmitVectorExtract32(context, op.Qn, op.In + pairIndex, op.Size, signed);
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Operand n2 = EmitVectorExtract32(context, op.Qn, op.In + pairIndex + 1, op.Size, signed);
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|
Operand m1 = EmitVectorExtract32(context, op.Qm, op.Im + pairIndex, op.Size, signed);
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Operand m2 = EmitVectorExtract32(context, op.Qm, op.Im + pairIndex + 1, op.Size, signed);
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|
res = EmitVectorInsert(context, res, emit(n1, n2), op.Id + index, op.Size);
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res = EmitVectorInsert(context, res, emit(m1, m2), op.Id + index + pairs, op.Size);
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}
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|
context.Copy(GetVecA32(op.Qd), res);
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}
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|
public static void EmitVectorPairwiseLongOpI32(ArmEmitterContext context, Func2I emit, bool signed)
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|
{
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|
OpCode32Simd op = (OpCode32Simd)context.CurrOp;
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|
int elems = (op.Q ? 16 : 8) >> op.Size;
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int pairs = elems >> 1;
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int id = (op.Vd & 1) * pairs;
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|
Operand res = GetVecA32(op.Qd);
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|
for (int index = 0; index < pairs; index++)
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|
{
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|
int pairIndex = index << 1;
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|
Operand m1 = EmitVectorExtract32(context, op.Qm, op.Im + pairIndex, op.Size, signed);
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|
Operand m2 = EmitVectorExtract32(context, op.Qm, op.Im + pairIndex + 1, op.Size, signed);
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|
if (op.Size == 2)
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|
{
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|
m1 = signed ? context.SignExtend32(OperandType.I64, m1) : context.ZeroExtend32(OperandType.I64, m1);
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|
m2 = signed ? context.SignExtend32(OperandType.I64, m2) : context.ZeroExtend32(OperandType.I64, m2);
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|
}
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|
res = EmitVectorInsert(context, res, emit(m1, m2), id + index, op.Size + 1);
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|
}
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|
context.Copy(GetVecA32(op.Qd), res);
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|
}
|
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|
// Narrow
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|
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|
public static void EmitVectorUnaryNarrowOp32(ArmEmitterContext context, Func1I emit, bool signed = false)
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|
{
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|
OpCode32Simd op = (OpCode32Simd)context.CurrOp;
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|
int elems = 8 >> op.Size; // Size contains the target element size. (for when it becomes a doubleword)
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|
Operand res = GetVecA32(op.Qd);
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|
int id = (op.Vd & 1) << (3 - op.Size); // Target doubleword base.
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|
for (int index = 0; index < elems; index++)
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|
{
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|
Operand m = EmitVectorExtract32(context, op.Qm, index, op.Size + 1, signed);
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|
res = EmitVectorInsert(context, res, emit(m), id + index, op.Size);
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|
}
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|
context.Copy(GetVecA32(op.Qd), res);
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|
}
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|
// Intrinsic Helpers
|
|
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|
public static Operand EmitMoveDoubleWordToSide(ArmEmitterContext context, Operand input, int originalV, int targetV)
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|
{
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|
Debug.Assert(input.Type == OperandType.V128);
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|
int originalSide = originalV & 1;
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|
int targetSide = targetV & 1;
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|
if (originalSide == targetSide)
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|
{
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|
return input;
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|
}
|
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|
if (targetSide == 1)
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|
{
|
|
return context.AddIntrinsic(Intrinsic.X86Movlhps, input, input); // Low to high.
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|
}
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|
else
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|
{
|
|
return context.AddIntrinsic(Intrinsic.X86Movhlps, input, input); // High to low.
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|
}
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|
}
|
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|
public static Operand EmitDoubleWordInsert(ArmEmitterContext context, Operand target, Operand value, int targetV)
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|
{
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|
Debug.Assert(target.Type == OperandType.V128 && value.Type == OperandType.V128);
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|
int targetSide = targetV & 1;
|
|
int shuffleMask = 2;
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|
|
if (targetSide == 1)
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|
{
|
|
return context.AddIntrinsic(Intrinsic.X86Shufpd, target, value, Const(shuffleMask));
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|
}
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|
else
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|
{
|
|
return context.AddIntrinsic(Intrinsic.X86Shufpd, value, target, Const(shuffleMask));
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|
}
|
|
}
|
|
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|
public static Operand EmitScalarInsert(ArmEmitterContext context, Operand target, Operand value, int reg, bool doubleWidth)
|
|
{
|
|
Debug.Assert(target.Type == OperandType.V128 && value.Type == OperandType.V128);
|
|
|
|
// Insert from index 0 in value to index in target.
|
|
int index = reg & (doubleWidth ? 1 : 3);
|
|
|
|
if (doubleWidth)
|
|
{
|
|
if (index == 1)
|
|
{
|
|
return context.AddIntrinsic(Intrinsic.X86Movlhps, target, value); // Low to high.
|
|
}
|
|
else
|
|
{
|
|
return context.AddIntrinsic(Intrinsic.X86Shufpd, value, target, Const(2)); // Low to low, keep high from original.
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (Optimizations.UseSse41)
|
|
{
|
|
return context.AddIntrinsic(Intrinsic.X86Insertps, target, value, Const(index << 4));
|
|
}
|
|
else
|
|
{
|
|
target = EmitSwapScalar(context, target, index, doubleWidth); // Swap value to replace into element 0.
|
|
target = context.AddIntrinsic(Intrinsic.X86Movss, target, value); // Move the value into element 0 of the vector.
|
|
return EmitSwapScalar(context, target, index, doubleWidth); // Swap new value back to the correct index.
|
|
}
|
|
}
|
|
}
|
|
|
|
public static Operand EmitSwapScalar(ArmEmitterContext context, Operand target, int reg, bool doubleWidth)
|
|
{
|
|
// Index into 0, 0 into index. This swap happens at the start of an A32 scalar op if required.
|
|
int index = reg & (doubleWidth ? 1 : 3);
|
|
if (index == 0) return target;
|
|
|
|
if (doubleWidth)
|
|
{
|
|
int shuffleMask = 1; // Swap top and bottom. (b0 = 1, b1 = 0)
|
|
return context.AddIntrinsic(Intrinsic.X86Shufpd, target, target, Const(shuffleMask));
|
|
}
|
|
else
|
|
{
|
|
int shuffleMask = (3 << 6) | (2 << 4) | (1 << 2) | index; // Swap index and 0. (others remain)
|
|
shuffleMask &= ~(3 << (index * 2));
|
|
|
|
return context.AddIntrinsic(Intrinsic.X86Shufps, target, target, Const(shuffleMask));
|
|
}
|
|
}
|
|
|
|
// Vector Operand Templates
|
|
|
|
public static void EmitVectorUnaryOpSimd32(ArmEmitterContext context, Func1I vectorFunc)
|
|
{
|
|
OpCode32Simd op = (OpCode32Simd)context.CurrOp;
|
|
|
|
Operand m = GetVecA32(op.Qm);
|
|
Operand d = GetVecA32(op.Qd);
|
|
|
|
if (!op.Q) // Register swap: move relevant doubleword to destination side.
|
|
{
|
|
m = EmitMoveDoubleWordToSide(context, m, op.Vm, op.Vd);
|
|
}
|
|
|
|
Operand res = vectorFunc(m);
|
|
|
|
if (!op.Q) // Register insert.
|
|
{
|
|
res = EmitDoubleWordInsert(context, d, res, op.Vd);
|
|
}
|
|
|
|
context.Copy(d, res);
|
|
}
|
|
|
|
public static void EmitVectorUnaryOpF32(ArmEmitterContext context, Intrinsic inst32, Intrinsic inst64)
|
|
{
|
|
OpCode32Simd op = (OpCode32Simd)context.CurrOp;
|
|
|
|
Intrinsic inst = (op.Size & 1) != 0 ? inst64 : inst32;
|
|
|
|
EmitVectorUnaryOpSimd32(context, (m) => context.AddIntrinsic(inst, m));
|
|
}
|
|
|
|
public static void EmitVectorBinaryOpSimd32(ArmEmitterContext context, Func2I vectorFunc, int side = -1)
|
|
{
|
|
OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
|
|
|
|
Operand n = GetVecA32(op.Qn);
|
|
Operand m = GetVecA32(op.Qm);
|
|
Operand d = GetVecA32(op.Qd);
|
|
|
|
if (side == -1)
|
|
{
|
|
side = op.Vd;
|
|
}
|
|
|
|
if (!op.Q) // Register swap: move relevant doubleword to destination side.
|
|
{
|
|
n = EmitMoveDoubleWordToSide(context, n, op.Vn, side);
|
|
m = EmitMoveDoubleWordToSide(context, m, op.Vm, side);
|
|
}
|
|
|
|
Operand res = vectorFunc(n, m);
|
|
|
|
if (!op.Q) // Register insert.
|
|
{
|
|
if (side != op.Vd)
|
|
{
|
|
res = EmitMoveDoubleWordToSide(context, res, side, op.Vd);
|
|
}
|
|
res = EmitDoubleWordInsert(context, d, res, op.Vd);
|
|
}
|
|
|
|
context.Copy(d, res);
|
|
}
|
|
|
|
public static void EmitVectorBinaryOpF32(ArmEmitterContext context, Intrinsic inst32, Intrinsic inst64)
|
|
{
|
|
OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
|
|
|
|
Intrinsic inst = (op.Size & 1) != 0 ? inst64 : inst32;
|
|
EmitVectorBinaryOpSimd32(context, (n, m) => context.AddIntrinsic(inst, n, m));
|
|
}
|
|
|
|
public static void EmitVectorTernaryOpSimd32(ArmEmitterContext context, Func3I vectorFunc)
|
|
{
|
|
OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
|
|
|
|
Operand n = GetVecA32(op.Qn);
|
|
Operand m = GetVecA32(op.Qm);
|
|
Operand d = GetVecA32(op.Qd);
|
|
Operand initialD = d;
|
|
|
|
if (!op.Q) // Register swap: move relevant doubleword to destination side.
|
|
{
|
|
n = EmitMoveDoubleWordToSide(context, n, op.Vn, op.Vd);
|
|
m = EmitMoveDoubleWordToSide(context, m, op.Vm, op.Vd);
|
|
}
|
|
|
|
Operand res = vectorFunc(d, n, m);
|
|
|
|
if (!op.Q) // Register insert.
|
|
{
|
|
res = EmitDoubleWordInsert(context, initialD, res, op.Vd);
|
|
}
|
|
|
|
context.Copy(initialD, res);
|
|
}
|
|
|
|
public static void EmitVectorTernaryOpF32(ArmEmitterContext context, Intrinsic inst32pt1, Intrinsic inst64pt1, Intrinsic inst32pt2, Intrinsic inst64pt2)
|
|
{
|
|
OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
|
|
|
|
Intrinsic inst1 = (op.Size & 1) != 0 ? inst64pt1 : inst32pt1;
|
|
Intrinsic inst2 = (op.Size & 1) != 0 ? inst64pt2 : inst32pt2;
|
|
|
|
EmitVectorTernaryOpSimd32(context, (d, n, m) =>
|
|
{
|
|
Operand res = context.AddIntrinsic(inst1, n, m);
|
|
return res = context.AddIntrinsic(inst2, d, res);
|
|
});
|
|
}
|
|
|
|
public static void EmitVectorTernaryOpF32(ArmEmitterContext context, Intrinsic inst32)
|
|
{
|
|
OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
|
|
|
|
Debug.Assert((op.Size & 1) == 0);
|
|
|
|
EmitVectorTernaryOpSimd32(context, (d, n, m) =>
|
|
{
|
|
return context.AddIntrinsic(inst32, d, n, m);
|
|
});
|
|
}
|
|
|
|
public static void EmitScalarUnaryOpSimd32(ArmEmitterContext context, Func1I scalarFunc)
|
|
{
|
|
OpCode32SimdS op = (OpCode32SimdS)context.CurrOp;
|
|
|
|
bool doubleSize = (op.Size & 1) != 0;
|
|
int shift = doubleSize ? 1 : 2;
|
|
Operand m = GetVecA32(op.Vm >> shift);
|
|
Operand d = GetVecA32(op.Vd >> shift);
|
|
|
|
m = EmitSwapScalar(context, m, op.Vm, doubleSize);
|
|
|
|
Operand res = scalarFunc(m);
|
|
|
|
// Insert scalar into vector.
|
|
res = EmitScalarInsert(context, d, res, op.Vd, doubleSize);
|
|
|
|
context.Copy(d, res);
|
|
}
|
|
|
|
public static void EmitScalarUnaryOpF32(ArmEmitterContext context, Intrinsic inst32, Intrinsic inst64)
|
|
{
|
|
OpCode32SimdS op = (OpCode32SimdS)context.CurrOp;
|
|
|
|
Intrinsic inst = (op.Size & 1) != 0 ? inst64 : inst32;
|
|
|
|
EmitScalarUnaryOpSimd32(context, (m) => (inst == 0) ? m : context.AddIntrinsic(inst, m));
|
|
}
|
|
|
|
public static void EmitScalarBinaryOpSimd32(ArmEmitterContext context, Func2I scalarFunc)
|
|
{
|
|
OpCode32SimdRegS op = (OpCode32SimdRegS)context.CurrOp;
|
|
|
|
bool doubleSize = (op.Size & 1) != 0;
|
|
int shift = doubleSize ? 1 : 2;
|
|
Operand n = GetVecA32(op.Vn >> shift);
|
|
Operand m = GetVecA32(op.Vm >> shift);
|
|
Operand d = GetVecA32(op.Vd >> shift);
|
|
|
|
n = EmitSwapScalar(context, n, op.Vn, doubleSize);
|
|
m = EmitSwapScalar(context, m, op.Vm, doubleSize);
|
|
|
|
Operand res = scalarFunc(n, m);
|
|
|
|
// Insert scalar into vector.
|
|
res = EmitScalarInsert(context, d, res, op.Vd, doubleSize);
|
|
|
|
context.Copy(d, res);
|
|
}
|
|
|
|
public static void EmitScalarBinaryOpF32(ArmEmitterContext context, Intrinsic inst32, Intrinsic inst64)
|
|
{
|
|
OpCode32SimdRegS op = (OpCode32SimdRegS)context.CurrOp;
|
|
|
|
Intrinsic inst = (op.Size & 1) != 0 ? inst64 : inst32;
|
|
|
|
EmitScalarBinaryOpSimd32(context, (n, m) => context.AddIntrinsic(inst, n, m));
|
|
}
|
|
|
|
public static void EmitScalarTernaryOpSimd32(ArmEmitterContext context, Func3I scalarFunc)
|
|
{
|
|
OpCode32SimdRegS op = (OpCode32SimdRegS)context.CurrOp;
|
|
|
|
bool doubleSize = (op.Size & 1) != 0;
|
|
int shift = doubleSize ? 1 : 2;
|
|
Operand n = GetVecA32(op.Vn >> shift);
|
|
Operand m = GetVecA32(op.Vm >> shift);
|
|
Operand d = GetVecA32(op.Vd >> shift);
|
|
Operand initialD = d;
|
|
|
|
n = EmitSwapScalar(context, n, op.Vn, doubleSize);
|
|
m = EmitSwapScalar(context, m, op.Vm, doubleSize);
|
|
d = EmitSwapScalar(context, d, op.Vd, doubleSize);
|
|
|
|
Operand res = scalarFunc(d, n, m);
|
|
|
|
// Insert scalar into vector.
|
|
res = EmitScalarInsert(context, initialD, res, op.Vd, doubleSize);
|
|
|
|
context.Copy(initialD, res);
|
|
}
|
|
|
|
public static void EmitScalarTernaryOpF32(ArmEmitterContext context, Intrinsic inst32, Intrinsic inst64)
|
|
{
|
|
OpCode32SimdRegS op = (OpCode32SimdRegS)context.CurrOp;
|
|
|
|
bool doubleSize = (op.Size & 1) != 0;
|
|
|
|
Intrinsic inst = doubleSize ? inst64 : inst32;
|
|
|
|
EmitScalarTernaryOpSimd32(context, (d, n, m) =>
|
|
{
|
|
return context.AddIntrinsic(inst, d, n, m);
|
|
});
|
|
}
|
|
|
|
public static void EmitScalarTernaryOpF32(
|
|
ArmEmitterContext context,
|
|
Intrinsic inst32pt1,
|
|
Intrinsic inst64pt1,
|
|
Intrinsic inst32pt2,
|
|
Intrinsic inst64pt2,
|
|
bool isNegD = false)
|
|
{
|
|
OpCode32SimdRegS op = (OpCode32SimdRegS)context.CurrOp;
|
|
|
|
bool doubleSize = (op.Size & 1) != 0;
|
|
|
|
Intrinsic inst1 = doubleSize ? inst64pt1 : inst32pt1;
|
|
Intrinsic inst2 = doubleSize ? inst64pt2 : inst32pt2;
|
|
|
|
EmitScalarTernaryOpSimd32(context, (d, n, m) =>
|
|
{
|
|
Operand res = context.AddIntrinsic(inst1, n, m);
|
|
|
|
if (isNegD)
|
|
{
|
|
Operand mask = doubleSize
|
|
? X86GetScalar(context, -0d)
|
|
: X86GetScalar(context, -0f);
|
|
|
|
d = doubleSize
|
|
? context.AddIntrinsic(Intrinsic.X86Xorpd, mask, d)
|
|
: context.AddIntrinsic(Intrinsic.X86Xorps, mask, d);
|
|
}
|
|
|
|
return context.AddIntrinsic(inst2, d, res);
|
|
});
|
|
}
|
|
|
|
// By Scalar
|
|
|
|
public static void EmitVectorByScalarOpSimd32(ArmEmitterContext context, Func2I vectorFunc)
|
|
{
|
|
OpCode32SimdRegElem op = (OpCode32SimdRegElem)context.CurrOp;
|
|
|
|
Operand n = GetVecA32(op.Qn);
|
|
Operand d = GetVecA32(op.Qd);
|
|
|
|
int index = op.Vm & 3;
|
|
int dupeMask = (index << 6) | (index << 4) | (index << 2) | index;
|
|
Operand m = GetVecA32(op.Vm >> 2);
|
|
m = context.AddIntrinsic(Intrinsic.X86Shufps, m, m, Const(dupeMask));
|
|
|
|
if (!op.Q) // Register swap: move relevant doubleword to destination side.
|
|
{
|
|
n = EmitMoveDoubleWordToSide(context, n, op.Vn, op.Vd);
|
|
}
|
|
|
|
Operand res = vectorFunc(n, m);
|
|
|
|
if (!op.Q) // Register insert.
|
|
{
|
|
res = EmitDoubleWordInsert(context, d, res, op.Vd);
|
|
}
|
|
|
|
context.Copy(d, res);
|
|
}
|
|
|
|
public static void EmitVectorByScalarOpF32(ArmEmitterContext context, Intrinsic inst32, Intrinsic inst64)
|
|
{
|
|
OpCode32SimdRegElem op = (OpCode32SimdRegElem)context.CurrOp;
|
|
|
|
Intrinsic inst = (op.Size & 1) != 0 ? inst64 : inst32;
|
|
EmitVectorByScalarOpSimd32(context, (n, m) => context.AddIntrinsic(inst, n, m));
|
|
}
|
|
|
|
public static void EmitVectorsByScalarOpSimd32(ArmEmitterContext context, Func3I vectorFunc)
|
|
{
|
|
OpCode32SimdRegElem op = (OpCode32SimdRegElem)context.CurrOp;
|
|
|
|
Operand n = GetVecA32(op.Qn);
|
|
Operand d = GetVecA32(op.Qd);
|
|
Operand initialD = d;
|
|
|
|
int index = op.Vm & 3;
|
|
int dupeMask = (index << 6) | (index << 4) | (index << 2) | index;
|
|
Operand m = GetVecA32(op.Vm >> 2);
|
|
m = context.AddIntrinsic(Intrinsic.X86Shufps, m, m, Const(dupeMask));
|
|
|
|
if (!op.Q) // Register swap: move relevant doubleword to destination side.
|
|
{
|
|
n = EmitMoveDoubleWordToSide(context, n, op.Vn, op.Vd);
|
|
}
|
|
|
|
Operand res = vectorFunc(d, n, m);
|
|
|
|
if (!op.Q) // Register insert.
|
|
{
|
|
res = EmitDoubleWordInsert(context, initialD, res, op.Vd);
|
|
}
|
|
|
|
context.Copy(initialD, res);
|
|
}
|
|
|
|
public static void EmitVectorsByScalarOpF32(ArmEmitterContext context, Intrinsic inst32pt1, Intrinsic inst64pt1, Intrinsic inst32pt2, Intrinsic inst64pt2)
|
|
{
|
|
OpCode32SimdRegElem op = (OpCode32SimdRegElem)context.CurrOp;
|
|
|
|
Intrinsic inst1 = (op.Size & 1) != 0 ? inst64pt1 : inst32pt1;
|
|
Intrinsic inst2 = (op.Size & 1) != 0 ? inst64pt2 : inst32pt2;
|
|
|
|
EmitVectorsByScalarOpSimd32(context, (d, n, m) =>
|
|
{
|
|
Operand res = context.AddIntrinsic(inst1, n, m);
|
|
return res = context.AddIntrinsic(inst2, d, res);
|
|
});
|
|
}
|
|
|
|
// Pairwise
|
|
|
|
public static void EmitSse2VectorPairwiseOpF32(ArmEmitterContext context, Intrinsic inst32)
|
|
{
|
|
OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
|
|
|
|
EmitVectorBinaryOpSimd32(context, (n, m) =>
|
|
{
|
|
Operand unpck = context.AddIntrinsic(Intrinsic.X86Unpcklps, n, m);
|
|
|
|
Operand part0 = unpck;
|
|
Operand part1 = context.AddIntrinsic(Intrinsic.X86Movhlps, unpck, unpck);
|
|
|
|
return context.AddIntrinsic(inst32, part0, part1);
|
|
}, 0);
|
|
}
|
|
|
|
public static void EmitSsse3VectorPairwiseOp32(ArmEmitterContext context, Intrinsic[] inst)
|
|
{
|
|
OpCode32SimdReg op = (OpCode32SimdReg)context.CurrOp;
|
|
|
|
EmitVectorBinaryOpSimd32(context, (n, m) =>
|
|
{
|
|
if (op.RegisterSize == RegisterSize.Simd64)
|
|
{
|
|
Operand zeroEvenMask = X86GetElements(context, ZeroMask, EvenMasks[op.Size]);
|
|
Operand zeroOddMask = X86GetElements(context, ZeroMask, OddMasks[op.Size]);
|
|
|
|
Operand mN = context.AddIntrinsic(Intrinsic.X86Punpcklqdq, n, m); // m:n
|
|
|
|
Operand left = context.AddIntrinsic(Intrinsic.X86Pshufb, mN, zeroEvenMask); // 0:even from m:n
|
|
Operand right = context.AddIntrinsic(Intrinsic.X86Pshufb, mN, zeroOddMask); // 0:odd from m:n
|
|
|
|
return context.AddIntrinsic(inst[op.Size], left, right);
|
|
}
|
|
else if (op.Size < 3)
|
|
{
|
|
Operand oddEvenMask = X86GetElements(context, OddMasks[op.Size], EvenMasks[op.Size]);
|
|
|
|
Operand oddEvenN = context.AddIntrinsic(Intrinsic.X86Pshufb, n, oddEvenMask); // odd:even from n
|
|
Operand oddEvenM = context.AddIntrinsic(Intrinsic.X86Pshufb, m, oddEvenMask); // odd:even from m
|
|
|
|
Operand left = context.AddIntrinsic(Intrinsic.X86Punpcklqdq, oddEvenN, oddEvenM);
|
|
Operand right = context.AddIntrinsic(Intrinsic.X86Punpckhqdq, oddEvenN, oddEvenM);
|
|
|
|
return context.AddIntrinsic(inst[op.Size], left, right);
|
|
}
|
|
else
|
|
{
|
|
Operand left = context.AddIntrinsic(Intrinsic.X86Punpcklqdq, n, m);
|
|
Operand right = context.AddIntrinsic(Intrinsic.X86Punpckhqdq, n, m);
|
|
|
|
return context.AddIntrinsic(inst[3], left, right);
|
|
}
|
|
}, 0);
|
|
}
|
|
|
|
// Generic Functions
|
|
|
|
public static Operand EmitSoftFloatCallDefaultFpscr(ArmEmitterContext context, string name, params Operand[] callArgs)
|
|
{
|
|
IOpCodeSimd op = (IOpCodeSimd)context.CurrOp;
|
|
|
|
MethodInfo info = (op.Size & 1) == 0
|
|
? typeof(SoftFloat32).GetMethod(name)
|
|
: typeof(SoftFloat64).GetMethod(name);
|
|
|
|
Array.Resize(ref callArgs, callArgs.Length + 1);
|
|
callArgs[callArgs.Length - 1] = Const(1);
|
|
|
|
context.ExitArmFpMode();
|
|
context.StoreToContext();
|
|
Operand res = context.Call(info, callArgs);
|
|
context.LoadFromContext();
|
|
context.EnterArmFpMode();
|
|
|
|
return res;
|
|
}
|
|
|
|
public static Operand EmitVectorExtractSx32(ArmEmitterContext context, int reg, int index, int size)
|
|
{
|
|
return EmitVectorExtract32(context, reg, index, size, true);
|
|
}
|
|
|
|
public static Operand EmitVectorExtractZx32(ArmEmitterContext context, int reg, int index, int size)
|
|
{
|
|
return EmitVectorExtract32(context, reg, index, size, false);
|
|
}
|
|
|
|
public static Operand EmitVectorExtract32(ArmEmitterContext context, int reg, int index, int size, bool signed)
|
|
{
|
|
ThrowIfInvalid(index, size);
|
|
|
|
Operand res = default;
|
|
|
|
switch (size)
|
|
{
|
|
case 0:
|
|
res = context.VectorExtract8(GetVec(reg), index);
|
|
break;
|
|
|
|
case 1:
|
|
res = context.VectorExtract16(GetVec(reg), index);
|
|
break;
|
|
|
|
case 2:
|
|
res = context.VectorExtract(OperandType.I32, GetVec(reg), index);
|
|
break;
|
|
|
|
case 3:
|
|
res = context.VectorExtract(OperandType.I64, GetVec(reg), index);
|
|
break;
|
|
}
|
|
|
|
if (signed)
|
|
{
|
|
switch (size)
|
|
{
|
|
case 0: res = context.SignExtend8(OperandType.I32, res); break;
|
|
case 1: res = context.SignExtend16(OperandType.I32, res); break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
switch (size)
|
|
{
|
|
case 0: res = context.ZeroExtend8(OperandType.I32, res); break;
|
|
case 1: res = context.ZeroExtend16(OperandType.I32, res); break;
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
public static Operand EmitPolynomialMultiply(ArmEmitterContext context, Operand op1, Operand op2, int eSize)
|
|
{
|
|
Debug.Assert(eSize <= 32);
|
|
|
|
Operand result = eSize == 32 ? Const(0L) : Const(0);
|
|
|
|
if (eSize == 32)
|
|
{
|
|
op1 = context.ZeroExtend32(OperandType.I64, op1);
|
|
op2 = context.ZeroExtend32(OperandType.I64, op2);
|
|
}
|
|
|
|
for (int i = 0; i < eSize; i++)
|
|
{
|
|
Operand mask = context.BitwiseAnd(op1, Const(op1.Type, 1L << i));
|
|
|
|
result = context.BitwiseExclusiveOr(result, context.Multiply(op2, mask));
|
|
}
|
|
|
|
return result;
|
|
}
|
|
}
|
|
}
|