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	* Implement JIT Arm64 backend * PPTC version bump * Address some feedback from Arm64 JIT PR * Address even more PR feedback * Remove unused IsPageAligned function * Sync Qc flag before calls * Fix comment and remove unused enum * Address riperiperi PR feedback * Delete Breakpoint IR instruction that was only implemented for Arm64
		
			
				
	
	
		
			582 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
			
		
		
	
	
			582 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
| using ARMeilleure.Decoders;
 | |
| using ARMeilleure.IntermediateRepresentation;
 | |
| using ARMeilleure.Translation;
 | |
| using System;
 | |
| using System.Diagnostics;
 | |
| 
 | |
| using static ARMeilleure.Instructions.InstEmitHelper;
 | |
| using static ARMeilleure.Instructions.InstEmitSimdHelper;
 | |
| using static ARMeilleure.IntermediateRepresentation.Operand.Factory;
 | |
| 
 | |
| namespace ARMeilleure.Instructions
 | |
| {
 | |
|     static partial class InstEmit
 | |
|     {
 | |
|         public static void And_V(ArmEmitterContext context)
 | |
|         {
 | |
|             if (Optimizations.UseAdvSimd)
 | |
|             {
 | |
|                 InstEmitSimdHelperArm64.EmitVectorBinaryOp(context, Intrinsic.Arm64AndV);
 | |
|             }
 | |
|             else if (Optimizations.UseSse2)
 | |
|             {
 | |
|                 OpCodeSimdReg op = (OpCodeSimdReg)context.CurrOp;
 | |
| 
 | |
|                 Operand n = GetVec(op.Rn);
 | |
|                 Operand m = GetVec(op.Rm);
 | |
| 
 | |
|                 Operand res = context.AddIntrinsic(Intrinsic.X86Pand, n, m);
 | |
| 
 | |
|                 if (op.RegisterSize == RegisterSize.Simd64)
 | |
|                 {
 | |
|                     res = context.VectorZeroUpper64(res);
 | |
|                 }
 | |
| 
 | |
|                 context.Copy(GetVec(op.Rd), res);
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 EmitVectorBinaryOpZx(context, (op1, op2) => context.BitwiseAnd(op1, op2));
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static void Bic_V(ArmEmitterContext context)
 | |
|         {
 | |
|             if (Optimizations.UseAdvSimd)
 | |
|             {
 | |
|                 InstEmitSimdHelperArm64.EmitVectorBinaryOp(context, Intrinsic.Arm64BicV);
 | |
|             }
 | |
|             else if (Optimizations.UseSse2)
 | |
|             {
 | |
|                 OpCodeSimdReg op = (OpCodeSimdReg)context.CurrOp;
 | |
| 
 | |
|                 Operand n = GetVec(op.Rn);
 | |
|                 Operand m = GetVec(op.Rm);
 | |
| 
 | |
|                 Operand res = context.AddIntrinsic(Intrinsic.X86Pandn, m, n);
 | |
| 
 | |
|                 if (op.RegisterSize == RegisterSize.Simd64)
 | |
|                 {
 | |
|                     res = context.VectorZeroUpper64(res);
 | |
|                 }
 | |
| 
 | |
|                 context.Copy(GetVec(op.Rd), res);
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 EmitVectorBinaryOpZx(context, (op1, op2) =>
 | |
|                 {
 | |
|                     return context.BitwiseAnd(op1, context.BitwiseNot(op2));
 | |
|                 });
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static void Bic_Vi(ArmEmitterContext context)
 | |
|         {
 | |
|             if (Optimizations.UseSse2)
 | |
|             {
 | |
|                 OpCodeSimdImm op = (OpCodeSimdImm)context.CurrOp;
 | |
| 
 | |
|                 int eSize = 8 << op.Size;
 | |
| 
 | |
|                 Operand d = GetVec(op.Rd);
 | |
|                 Operand imm = eSize switch {
 | |
|                     16 => X86GetAllElements(context, (short)~op.Immediate),
 | |
|                     32 => X86GetAllElements(context, (int)~op.Immediate),
 | |
|                     _ => throw new InvalidOperationException($"Invalid element size {eSize}.")
 | |
|                 };
 | |
| 
 | |
|                 Operand res = context.AddIntrinsic(Intrinsic.X86Pand, d, imm);
 | |
| 
 | |
|                 if (op.RegisterSize == RegisterSize.Simd64)
 | |
|                 {
 | |
|                     res = context.VectorZeroUpper64(res);
 | |
|                 }
 | |
| 
 | |
|                 context.Copy(GetVec(op.Rd), res);
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 EmitVectorImmBinaryOp(context, (op1, op2) =>
 | |
|                 {
 | |
|                     return context.BitwiseAnd(op1, context.BitwiseNot(op2));
 | |
|                 });
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static void Bif_V(ArmEmitterContext context)
 | |
|         {
 | |
|             if (Optimizations.UseAdvSimd)
 | |
|             {
 | |
|                 InstEmitSimdHelperArm64.EmitVectorTernaryOpRd(context, Intrinsic.Arm64BifV);
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 EmitBifBit(context, notRm: true);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static void Bit_V(ArmEmitterContext context)
 | |
|         {
 | |
|             if (Optimizations.UseAdvSimd)
 | |
|             {
 | |
|                 InstEmitSimdHelperArm64.EmitVectorTernaryOpRd(context, Intrinsic.Arm64BitV);
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 EmitBifBit(context, notRm: false);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         private static void EmitBifBit(ArmEmitterContext context, bool notRm)
 | |
|         {
 | |
|             OpCodeSimdReg op = (OpCodeSimdReg)context.CurrOp;
 | |
| 
 | |
|             if (Optimizations.UseSse2)
 | |
|             {
 | |
|                 Operand d = GetVec(op.Rd);
 | |
|                 Operand n = GetVec(op.Rn);
 | |
|                 Operand m = GetVec(op.Rm);
 | |
| 
 | |
|                 Operand res = context.AddIntrinsic(Intrinsic.X86Pxor, n, d);
 | |
| 
 | |
|                 if (notRm)
 | |
|                 {
 | |
|                     res = context.AddIntrinsic(Intrinsic.X86Pandn, m, res);
 | |
|                 }
 | |
|                 else
 | |
|                 {
 | |
|                     res = context.AddIntrinsic(Intrinsic.X86Pand, m, res);
 | |
|                 }
 | |
| 
 | |
|                 res = context.AddIntrinsic(Intrinsic.X86Pxor, d, res);
 | |
| 
 | |
|                 if (op.RegisterSize == RegisterSize.Simd64)
 | |
|                 {
 | |
|                     res = context.VectorZeroUpper64(res);
 | |
|                 }
 | |
| 
 | |
|                 context.Copy(d, res);
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 Operand res = context.VectorZero();
 | |
| 
 | |
|                 int elems = op.RegisterSize == RegisterSize.Simd128 ? 2 : 1;
 | |
| 
 | |
|                 for (int index = 0; index < elems; index++)
 | |
|                 {
 | |
|                     Operand d = EmitVectorExtractZx(context, op.Rd, index, 3);
 | |
|                     Operand n = EmitVectorExtractZx(context, op.Rn, index, 3);
 | |
|                     Operand m = EmitVectorExtractZx(context, op.Rm, index, 3);
 | |
| 
 | |
|                     if (notRm)
 | |
|                     {
 | |
|                         m = context.BitwiseNot(m);
 | |
|                     }
 | |
| 
 | |
|                     Operand e = context.BitwiseExclusiveOr(d, n);
 | |
| 
 | |
|                     e = context.BitwiseAnd(e, m);
 | |
|                     e = context.BitwiseExclusiveOr(e, d);
 | |
| 
 | |
|                     res = EmitVectorInsert(context, res, e, index, 3);
 | |
|                 }
 | |
| 
 | |
|                 context.Copy(GetVec(op.Rd), res);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static void Bsl_V(ArmEmitterContext context)
 | |
|         {
 | |
|             if (Optimizations.UseAdvSimd)
 | |
|             {
 | |
|                 InstEmitSimdHelperArm64.EmitVectorTernaryOpRd(context, Intrinsic.Arm64BslV);
 | |
|             }
 | |
|             else if (Optimizations.UseSse2)
 | |
|             {
 | |
|                 OpCodeSimdReg op = (OpCodeSimdReg)context.CurrOp;
 | |
| 
 | |
|                 Operand d = GetVec(op.Rd);
 | |
|                 Operand n = GetVec(op.Rn);
 | |
|                 Operand m = GetVec(op.Rm);
 | |
| 
 | |
|                 Operand res = context.AddIntrinsic(Intrinsic.X86Pxor, n, m);
 | |
| 
 | |
|                 res = context.AddIntrinsic(Intrinsic.X86Pand, res, d);
 | |
|                 res = context.AddIntrinsic(Intrinsic.X86Pxor, res, m);
 | |
| 
 | |
|                 if (op.RegisterSize == RegisterSize.Simd64)
 | |
|                 {
 | |
|                     res = context.VectorZeroUpper64(res);
 | |
|                 }
 | |
| 
 | |
|                 context.Copy(d, res);
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 EmitVectorTernaryOpZx(context, (op1, op2, op3) =>
 | |
|                 {
 | |
|                     return context.BitwiseExclusiveOr(
 | |
|                         context.BitwiseAnd(op1,
 | |
|                         context.BitwiseExclusiveOr(op2, op3)), op3);
 | |
|                 });
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static void Eor_V(ArmEmitterContext context)
 | |
|         {
 | |
|             if (Optimizations.UseAdvSimd)
 | |
|             {
 | |
|                 InstEmitSimdHelperArm64.EmitVectorBinaryOp(context, Intrinsic.Arm64EorV);
 | |
|             }
 | |
|             else if (Optimizations.UseSse2)
 | |
|             {
 | |
|                 OpCodeSimdReg op = (OpCodeSimdReg)context.CurrOp;
 | |
| 
 | |
|                 Operand n = GetVec(op.Rn);
 | |
|                 Operand m = GetVec(op.Rm);
 | |
| 
 | |
|                 Operand res = context.AddIntrinsic(Intrinsic.X86Pxor, n, m);
 | |
| 
 | |
|                 if (op.RegisterSize == RegisterSize.Simd64)
 | |
|                 {
 | |
|                     res = context.VectorZeroUpper64(res);
 | |
|                 }
 | |
| 
 | |
|                 context.Copy(GetVec(op.Rd), res);
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 EmitVectorBinaryOpZx(context, (op1, op2) => context.BitwiseExclusiveOr(op1, op2));
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static void Not_V(ArmEmitterContext context)
 | |
|         {
 | |
|             if (Optimizations.UseSse2)
 | |
|             {
 | |
|                 OpCodeSimd op = (OpCodeSimd)context.CurrOp;
 | |
| 
 | |
|                 Operand n = GetVec(op.Rn);
 | |
| 
 | |
|                 Operand mask = X86GetAllElements(context, -1L);
 | |
| 
 | |
|                 Operand res = context.AddIntrinsic(Intrinsic.X86Pandn, n, mask);
 | |
| 
 | |
|                 if (op.RegisterSize == RegisterSize.Simd64)
 | |
|                 {
 | |
|                     res = context.VectorZeroUpper64(res);
 | |
|                 }
 | |
| 
 | |
|                 context.Copy(GetVec(op.Rd), res);
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 EmitVectorUnaryOpZx(context, (op1) => context.BitwiseNot(op1));
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static void Orn_V(ArmEmitterContext context)
 | |
|         {
 | |
|             if (Optimizations.UseAdvSimd)
 | |
|             {
 | |
|                 InstEmitSimdHelperArm64.EmitVectorBinaryOp(context, Intrinsic.Arm64OrnV);
 | |
|             }
 | |
|             else if (Optimizations.UseSse2)
 | |
|             {
 | |
|                 OpCodeSimdReg op = (OpCodeSimdReg)context.CurrOp;
 | |
| 
 | |
|                 Operand n = GetVec(op.Rn);
 | |
|                 Operand m = GetVec(op.Rm);
 | |
| 
 | |
|                 Operand mask = X86GetAllElements(context, -1L);
 | |
| 
 | |
|                 Operand res = context.AddIntrinsic(Intrinsic.X86Pandn, m, mask);
 | |
| 
 | |
|                 res = context.AddIntrinsic(Intrinsic.X86Por, res, n);
 | |
| 
 | |
|                 if (op.RegisterSize == RegisterSize.Simd64)
 | |
|                 {
 | |
|                     res = context.VectorZeroUpper64(res);
 | |
|                 }
 | |
| 
 | |
|                 context.Copy(GetVec(op.Rd), res);
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 EmitVectorBinaryOpZx(context, (op1, op2) =>
 | |
|                 {
 | |
|                     return context.BitwiseOr(op1, context.BitwiseNot(op2));
 | |
|                 });
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static void Orr_V(ArmEmitterContext context)
 | |
|         {
 | |
|             if (Optimizations.UseAdvSimd)
 | |
|             {
 | |
|                 InstEmitSimdHelperArm64.EmitVectorBinaryOp(context, Intrinsic.Arm64OrrV);
 | |
|             }
 | |
|             else if (Optimizations.UseSse2)
 | |
|             {
 | |
|                 OpCodeSimdReg op = (OpCodeSimdReg)context.CurrOp;
 | |
| 
 | |
|                 Operand n = GetVec(op.Rn);
 | |
|                 Operand m = GetVec(op.Rm);
 | |
| 
 | |
|                 Operand res = context.AddIntrinsic(Intrinsic.X86Por, n, m);
 | |
| 
 | |
|                 if (op.RegisterSize == RegisterSize.Simd64)
 | |
|                 {
 | |
|                     res = context.VectorZeroUpper64(res);
 | |
|                 }
 | |
| 
 | |
|                 context.Copy(GetVec(op.Rd), res);
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 EmitVectorBinaryOpZx(context, (op1, op2) => context.BitwiseOr(op1, op2));
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static void Orr_Vi(ArmEmitterContext context)
 | |
|         {
 | |
|             if (Optimizations.UseSse2)
 | |
|             {
 | |
|                 OpCodeSimdImm op = (OpCodeSimdImm)context.CurrOp;
 | |
| 
 | |
|                 int eSize = 8 << op.Size;
 | |
| 
 | |
|                 Operand d = GetVec(op.Rd);
 | |
|                 Operand imm = eSize switch {
 | |
|                     16 => X86GetAllElements(context, (short)op.Immediate),
 | |
|                     32 => X86GetAllElements(context, (int)op.Immediate),
 | |
|                     _ => throw new InvalidOperationException($"Invalid element size {eSize}.")
 | |
|                 };
 | |
| 
 | |
|                 Operand res = context.AddIntrinsic(Intrinsic.X86Por, d, imm);
 | |
| 
 | |
|                 if (op.RegisterSize == RegisterSize.Simd64)
 | |
|                 {
 | |
|                     res = context.VectorZeroUpper64(res);
 | |
|                 }
 | |
| 
 | |
|                 context.Copy(GetVec(op.Rd), res);
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 EmitVectorImmBinaryOp(context, (op1, op2) => context.BitwiseOr(op1, op2));
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static void Rbit_V(ArmEmitterContext context)
 | |
|         {
 | |
|             OpCodeSimd op = (OpCodeSimd)context.CurrOp;
 | |
| 
 | |
|             if (Optimizations.UseGfni)
 | |
|             {
 | |
|                 const long bitMatrix =
 | |
|                     (0b10000000L << 56) |
 | |
|                     (0b01000000L << 48) |
 | |
|                     (0b00100000L << 40) |
 | |
|                     (0b00010000L << 32) |
 | |
|                     (0b00001000L << 24) |
 | |
|                     (0b00000100L << 16) |
 | |
|                     (0b00000010L <<  8) |
 | |
|                     (0b00000001L <<  0);
 | |
| 
 | |
|                 Operand vBitMatrix = X86GetAllElements(context, bitMatrix);
 | |
| 
 | |
|                 Operand res = context.AddIntrinsic(Intrinsic.X86Gf2p8affineqb, GetVec(op.Rn), vBitMatrix, Const(0));
 | |
| 
 | |
|                 if (op.RegisterSize == RegisterSize.Simd64)
 | |
|                 {
 | |
|                     res = context.VectorZeroUpper64(res);
 | |
|                 }
 | |
| 
 | |
|                 context.Copy(GetVec(op.Rd), res);
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 Operand res = context.VectorZero();
 | |
|                 int elems = op.RegisterSize == RegisterSize.Simd128 ? 16 : 8;
 | |
| 
 | |
|                 for (int index = 0; index < elems; index++)
 | |
|                 {
 | |
|                     Operand ne = EmitVectorExtractZx(context, op.Rn, index, 0);
 | |
| 
 | |
|                     Operand de = EmitReverseBits8Op(context, ne);
 | |
| 
 | |
|                     res = EmitVectorInsert(context, res, de, index, 0);
 | |
|                 }
 | |
| 
 | |
|                 context.Copy(GetVec(op.Rd), res);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         private static Operand EmitReverseBits8Op(ArmEmitterContext context, Operand op)
 | |
|         {
 | |
|             Debug.Assert(op.Type == OperandType.I64);
 | |
| 
 | |
|             Operand val = context.BitwiseOr(context.ShiftRightUI(context.BitwiseAnd(op, Const(0xaaul)), Const(1)),
 | |
|                                             context.ShiftLeft   (context.BitwiseAnd(op, Const(0x55ul)), Const(1)));
 | |
| 
 | |
|             val = context.BitwiseOr(context.ShiftRightUI(context.BitwiseAnd(val, Const(0xccul)), Const(2)),
 | |
|                                     context.ShiftLeft   (context.BitwiseAnd(val, Const(0x33ul)), Const(2)));
 | |
| 
 | |
|             return context.BitwiseOr(context.ShiftRightUI(val, Const(4)),
 | |
|                                      context.ShiftLeft   (context.BitwiseAnd(val, Const(0x0ful)), Const(4)));
 | |
|         }
 | |
| 
 | |
|         public static void Rev16_V(ArmEmitterContext context)
 | |
|         {
 | |
|             if (Optimizations.UseSsse3)
 | |
|             {
 | |
|                 OpCodeSimd op = (OpCodeSimd)context.CurrOp;
 | |
| 
 | |
|                 Operand n = GetVec(op.Rn);
 | |
| 
 | |
|                 const long maskE0 = 06L << 56 | 07L << 48 | 04L << 40 | 05L << 32 | 02L << 24 | 03L << 16 | 00L << 8 | 01L << 0;
 | |
|                 const long maskE1 = 14L << 56 | 15L << 48 | 12L << 40 | 13L << 32 | 10L << 24 | 11L << 16 | 08L << 8 | 09L << 0;
 | |
| 
 | |
|                 Operand mask = X86GetScalar(context, maskE0);
 | |
| 
 | |
|                 mask = EmitVectorInsert(context, mask, Const(maskE1), 1, 3);
 | |
| 
 | |
|                 Operand res = context.AddIntrinsic(Intrinsic.X86Pshufb, n, mask);
 | |
| 
 | |
|                 if (op.RegisterSize == RegisterSize.Simd64)
 | |
|                 {
 | |
|                     res = context.VectorZeroUpper64(res);
 | |
|                 }
 | |
| 
 | |
|                 context.Copy(GetVec(op.Rd), res);
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 EmitRev_V(context, containerSize: 1);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static void Rev32_V(ArmEmitterContext context)
 | |
|         {
 | |
|             if (Optimizations.UseSsse3)
 | |
|             {
 | |
|                 OpCodeSimd op = (OpCodeSimd)context.CurrOp;
 | |
| 
 | |
|                 Operand n = GetVec(op.Rn);
 | |
| 
 | |
|                 Operand mask;
 | |
| 
 | |
|                 if (op.Size == 0)
 | |
|                 {
 | |
|                     const long maskE0 = 04L << 56 | 05L << 48 | 06L << 40 | 07L << 32 | 00L << 24 | 01L << 16 | 02L << 8 | 03L << 0;
 | |
|                     const long maskE1 = 12L << 56 | 13L << 48 | 14L << 40 | 15L << 32 | 08L << 24 | 09L << 16 | 10L << 8 | 11L << 0;
 | |
| 
 | |
|                     mask = X86GetScalar(context, maskE0);
 | |
| 
 | |
|                     mask = EmitVectorInsert(context, mask, Const(maskE1), 1, 3);
 | |
|                 }
 | |
|                 else /* if (op.Size == 1) */
 | |
|                 {
 | |
|                     const long maskE0 = 05L << 56 | 04L << 48 | 07L << 40 | 06L << 32 | 01L << 24 | 00L << 16 | 03L << 8 | 02L << 0;
 | |
|                     const long maskE1 = 13L << 56 | 12L << 48 | 15L << 40 | 14L << 32 | 09L << 24 | 08L << 16 | 11L << 8 | 10L << 0;
 | |
| 
 | |
|                     mask = X86GetScalar(context, maskE0);
 | |
| 
 | |
|                     mask = EmitVectorInsert(context, mask, Const(maskE1), 1, 3);
 | |
|                 }
 | |
| 
 | |
|                 Operand res = context.AddIntrinsic(Intrinsic.X86Pshufb, n, mask);
 | |
| 
 | |
|                 if (op.RegisterSize == RegisterSize.Simd64)
 | |
|                 {
 | |
|                     res = context.VectorZeroUpper64(res);
 | |
|                 }
 | |
| 
 | |
|                 context.Copy(GetVec(op.Rd), res);
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 EmitRev_V(context, containerSize: 2);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         public static void Rev64_V(ArmEmitterContext context)
 | |
|         {
 | |
|             if (Optimizations.UseSsse3)
 | |
|             {
 | |
|                 OpCodeSimd op = (OpCodeSimd)context.CurrOp;
 | |
| 
 | |
|                 Operand n = GetVec(op.Rn);
 | |
| 
 | |
|                 Operand mask;
 | |
| 
 | |
|                 if (op.Size == 0)
 | |
|                 {
 | |
|                     const long maskE0 = 00L << 56 | 01L << 48 | 02L << 40 | 03L << 32 | 04L << 24 | 05L << 16 | 06L << 8 | 07L << 0;
 | |
|                     const long maskE1 = 08L << 56 | 09L << 48 | 10L << 40 | 11L << 32 | 12L << 24 | 13L << 16 | 14L << 8 | 15L << 0;
 | |
| 
 | |
|                     mask = X86GetScalar(context, maskE0);
 | |
| 
 | |
|                     mask = EmitVectorInsert(context, mask, Const(maskE1), 1, 3);
 | |
|                 }
 | |
|                 else if (op.Size == 1)
 | |
|                 {
 | |
|                     const long maskE0 = 01L << 56 | 00L << 48 | 03L << 40 | 02L << 32 | 05L << 24 | 04L << 16 | 07L << 8 | 06L << 0;
 | |
|                     const long maskE1 = 09L << 56 | 08L << 48 | 11L << 40 | 10L << 32 | 13L << 24 | 12L << 16 | 15L << 8 | 14L << 0;
 | |
| 
 | |
|                     mask = X86GetScalar(context, maskE0);
 | |
| 
 | |
|                     mask = EmitVectorInsert(context, mask, Const(maskE1), 1, 3);
 | |
|                 }
 | |
|                 else /* if (op.Size == 2) */
 | |
|                 {
 | |
|                     const long maskE0 = 03L << 56 | 02L << 48 | 01L << 40 | 00L << 32 | 07L << 24 | 06L << 16 | 05L << 8 | 04L << 0;
 | |
|                     const long maskE1 = 11L << 56 | 10L << 48 | 09L << 40 | 08L << 32 | 15L << 24 | 14L << 16 | 13L << 8 | 12L << 0;
 | |
| 
 | |
|                     mask = X86GetScalar(context, maskE0);
 | |
| 
 | |
|                     mask = EmitVectorInsert(context, mask, Const(maskE1), 1, 3);
 | |
|                 }
 | |
| 
 | |
|                 Operand res = context.AddIntrinsic(Intrinsic.X86Pshufb, n, mask);
 | |
| 
 | |
|                 if (op.RegisterSize == RegisterSize.Simd64)
 | |
|                 {
 | |
|                     res = context.VectorZeroUpper64(res);
 | |
|                 }
 | |
| 
 | |
|                 context.Copy(GetVec(op.Rd), res);
 | |
|             }
 | |
|             else
 | |
|             {
 | |
|                 EmitRev_V(context, containerSize: 3);
 | |
|             }
 | |
|         }
 | |
| 
 | |
|         private static void EmitRev_V(ArmEmitterContext context, int containerSize)
 | |
|         {
 | |
|             OpCodeSimd op = (OpCodeSimd)context.CurrOp;
 | |
| 
 | |
|             Operand res = context.VectorZero();
 | |
| 
 | |
|             int elems = op.GetBytesCount() >> op.Size;
 | |
| 
 | |
|             int containerMask = (1 << (containerSize - op.Size)) - 1;
 | |
| 
 | |
|             for (int index = 0; index < elems; index++)
 | |
|             {
 | |
|                 int revIndex = index ^ containerMask;
 | |
| 
 | |
|                 Operand ne = EmitVectorExtractZx(context, op.Rn, revIndex, op.Size);
 | |
| 
 | |
|                 res = EmitVectorInsert(context, res, ne, index, op.Size);
 | |
|             }
 | |
| 
 | |
|             context.Copy(GetVec(op.Rd), res);
 | |
|         }
 | |
|     }
 | |
| }
 |