CPU (A64): Add Fmaxnmp & Fminnmp Scalar Inst.s, Fast & Slow Paths; with Tests. (#1894)

ARMeilleure/CodeGen/X86/IntrinsicTable.cs

@@ -119,6 +119,7 @@ namespace ARMeilleure.CodeGen.X86
             Add(Intrinsic.X86Popcnt,       new IntrinsicInfo(X86Instruction.Popcnt,       IntrinsicType.PopCount));
             Add(Intrinsic.X86Por,          new IntrinsicInfo(X86Instruction.Por,          IntrinsicType.Binary));
             Add(Intrinsic.X86Pshufb,       new IntrinsicInfo(X86Instruction.Pshufb,       IntrinsicType.Binary));
+            Add(Intrinsic.X86Pshufd,       new IntrinsicInfo(X86Instruction.Pshufd,       IntrinsicType.BinaryImm));
             Add(Intrinsic.X86Pslld,        new IntrinsicInfo(X86Instruction.Pslld,        IntrinsicType.Binary));
             Add(Intrinsic.X86Pslldq,       new IntrinsicInfo(X86Instruction.Pslldq,       IntrinsicType.Binary));
             Add(Intrinsic.X86Psllq,        new IntrinsicInfo(X86Instruction.Psllq,        IntrinsicType.Binary));

ARMeilleure/Decoders/OpCodeTable.cs

@@ -311,6 +311,7 @@ namespace ARMeilleure.Decoders
             SetA64("0>0011100<1xxxxx111101xxxxxxxxxx", InstName.Fmax_V,          InstEmit.Fmax_V,          OpCodeSimdReg.Create);
             SetA64("000111100x1xxxxx011010xxxxxxxxxx", InstName.Fmaxnm_S,        InstEmit.Fmaxnm_S,        OpCodeSimdReg.Create);
             SetA64("0>0011100<1xxxxx110001xxxxxxxxxx", InstName.Fmaxnm_V,        InstEmit.Fmaxnm_V,        OpCodeSimdReg.Create);
+            SetA64("011111100x110000110010xxxxxxxxxx", InstName.Fmaxnmp_S,       InstEmit.Fmaxnmp_S,       OpCodeSimd.Create);
             SetA64("0>1011100<1xxxxx110001xxxxxxxxxx", InstName.Fmaxnmp_V,       InstEmit.Fmaxnmp_V,       OpCodeSimdReg.Create);
             SetA64("0110111000110000110010xxxxxxxxxx", InstName.Fmaxnmv_V,       InstEmit.Fmaxnmv_V,       OpCodeSimd.Create);
             SetA64("0>1011100<1xxxxx111101xxxxxxxxxx", InstName.Fmaxp_V,         InstEmit.Fmaxp_V,         OpCodeSimdReg.Create);
@@ -319,6 +320,7 @@ namespace ARMeilleure.Decoders
             SetA64("0>0011101<1xxxxx111101xxxxxxxxxx", InstName.Fmin_V,          InstEmit.Fmin_V,          OpCodeSimdReg.Create);
             SetA64("000111100x1xxxxx011110xxxxxxxxxx", InstName.Fminnm_S,        InstEmit.Fminnm_S,        OpCodeSimdReg.Create);
             SetA64("0>0011101<1xxxxx110001xxxxxxxxxx", InstName.Fminnm_V,        InstEmit.Fminnm_V,        OpCodeSimdReg.Create);
+            SetA64("011111101x110000110010xxxxxxxxxx", InstName.Fminnmp_S,       InstEmit.Fminnmp_S,       OpCodeSimd.Create);
             SetA64("0>1011101<1xxxxx110001xxxxxxxxxx", InstName.Fminnmp_V,       InstEmit.Fminnmp_V,       OpCodeSimdReg.Create);
             SetA64("0110111010110000110010xxxxxxxxxx", InstName.Fminnmv_V,       InstEmit.Fminnmv_V,       OpCodeSimd.Create);
             SetA64("0>1011101<1xxxxx111101xxxxxxxxxx", InstName.Fminp_V,         InstEmit.Fminp_V,         OpCodeSimdReg.Create);

ARMeilleure/Instructions/InstEmitSimdArithmetic.cs

@@ -347,19 +347,17 @@ namespace ARMeilleure.Instructions
 
         public static void Faddp_S(ArmEmitterContext context)
         {
-            OpCodeSimd op = (OpCodeSimd)context.CurrOp;
-
-            int sizeF = op.Size & 1;
-
             if (Optimizations.FastFP && Optimizations.UseSse3)
             {
-                if (sizeF == 0)
+                OpCodeSimd op = (OpCodeSimd)context.CurrOp;
+
+                if ((op.Size & 1) == 0)
                 {
                     Operand res = context.AddIntrinsic(Intrinsic.X86Haddps, GetVec(op.Rn), GetVec(op.Rn));
 
                     context.Copy(GetVec(op.Rd), context.VectorZeroUpper96(res));
                 }
-                else /* if (sizeF == 1) */
+                else /* if ((op.Size & 1) == 1) */
                 {
                     Operand res = context.AddIntrinsic(Intrinsic.X86Haddpd, GetVec(op.Rn), GetVec(op.Rn));
 
@@ -368,14 +366,10 @@ namespace ARMeilleure.Instructions
             }
             else
             {
-                OperandType type = sizeF != 0 ? OperandType.FP64 : OperandType.FP32;
-
-                Operand ne0 = context.VectorExtract(type, GetVec(op.Rn), 0);
-                Operand ne1 = context.VectorExtract(type, GetVec(op.Rn), 1);
-
-                Operand res = EmitSoftFloatCall(context, nameof(SoftFloat32.FPAdd), ne0, ne1);
-
-                context.Copy(GetVec(op.Rd), context.VectorInsert(context.VectorZero(), res, 0));
+                EmitScalarPairwiseOpF(context, (op1, op2) =>
+                {
+                    return EmitSoftFloatCall(context, nameof(SoftFloat32.FPAdd), op1, op2);
+                });
             }
         }
 
@@ -552,6 +546,24 @@ namespace ARMeilleure.Instructions
             }
         }
 
+        public static void Fmaxnmp_S(ArmEmitterContext context)
+        {
+            if (Optimizations.FastFP && Optimizations.UseSse41)
+            {
+                EmitSse2ScalarPairwiseOpF(context, (op1, op2) =>
+                {
+                    return EmitSse41MaxMinNumOpF(context, isMaxNum: true, scalar: true, op1, op2);
+                });
+            }
+            else
+            {
+                EmitScalarPairwiseOpF(context, (op1, op2) =>
+                {
+                    return EmitSoftFloatCall(context, nameof(SoftFloat32.FPMaxNum), op1, op2);
+                });
+            }
+        }
+
         public static void Fmaxnmp_V(ArmEmitterContext context)
         {
             if (Optimizations.FastFP && Optimizations.UseSse41)
@@ -708,6 +720,24 @@ namespace ARMeilleure.Instructions
             }
         }
 
+        public static void Fminnmp_S(ArmEmitterContext context)
+        {
+            if (Optimizations.FastFP && Optimizations.UseSse41)
+            {
+                EmitSse2ScalarPairwiseOpF(context, (op1, op2) =>
+                {
+                    return EmitSse41MaxMinNumOpF(context, isMaxNum: false, scalar: true, op1, op2);
+                });
+            }
+            else
+            {
+                EmitScalarPairwiseOpF(context, (op1, op2) =>
+                {
+                    return EmitSoftFloatCall(context, nameof(SoftFloat32.FPMinNum), op1, op2);
+                });
+            }
+        }
+
         public static void Fminnmp_V(ArmEmitterContext context)
         {
             if (Optimizations.FastFP && Optimizations.UseSse41)

ARMeilleure/Instructions/InstEmitSimdHelper.cs

@@ -1118,6 +1118,49 @@ namespace ARMeilleure.Instructions
             context.Copy(GetVec(op.Rd), context.VectorZeroUpper96(res));
         }
 
+        public static void EmitScalarPairwiseOpF(ArmEmitterContext context, Func2I emit)
+        {
+            OpCodeSimd op = (OpCodeSimd)context.CurrOp;
+
+            OperandType type = (op.Size & 1) != 0 ? OperandType.FP64 : OperandType.FP32;
+
+            Operand ne0 = context.VectorExtract(type, GetVec(op.Rn), 0);
+            Operand ne1 = context.VectorExtract(type, GetVec(op.Rn), 1);
+
+            Operand res = context.VectorInsert(context.VectorZero(), emit(ne0, ne1), 0);
+
+            context.Copy(GetVec(op.Rd), res);
+        }
+
+        public static void EmitSse2ScalarPairwiseOpF(ArmEmitterContext context, Func2I emit)
+        {
+            OpCodeSimd op = (OpCodeSimd)context.CurrOp;
+
+            Operand n = GetVec(op.Rn);
+
+            Operand op0, op1;
+
+            if ((op.Size & 1) == 0)
+            {
+                const int sm0 = 2 << 6 | 2 << 4 | 2 << 2 | 0 << 0;
+                const int sm1 = 2 << 6 | 2 << 4 | 2 << 2 | 1 << 0;
+
+                Operand zeroN = context.VectorZeroUpper64(n);
+
+                op0 = context.AddIntrinsic(Intrinsic.X86Pshufd, zeroN, Const(sm0));
+                op1 = context.AddIntrinsic(Intrinsic.X86Pshufd, zeroN, Const(sm1));
+            }
+            else /* if ((op.Size & 1) == 1) */
+            {
+                Operand zero = context.VectorZero();
+
+                op0 = context.AddIntrinsic(Intrinsic.X86Movlhps, n, zero);
+                op1 = context.AddIntrinsic(Intrinsic.X86Movhlps, zero, n);
+            }
+
+            context.Copy(GetVec(op.Rd), emit(op0, op1));
+        }
+
         public static void EmitVectorPairwiseOpF(ArmEmitterContext context, Func2I emit)
         {
             OpCodeSimdReg op = (OpCodeSimdReg)context.CurrOp;

ARMeilleure/Instructions/InstName.cs

@@ -212,6 +212,7 @@ namespace ARMeilleure.Instructions
         Fmax_V,
         Fmaxnm_S,
         Fmaxnm_V,
+        Fmaxnmp_S,
         Fmaxnmp_V,
         Fmaxnmv_V,
         Fmaxp_V,
@@ -220,6 +221,7 @@ namespace ARMeilleure.Instructions
         Fmin_V,
         Fminnm_S,
         Fminnm_V,
+        Fminnmp_S,
         Fminnmp_V,
         Fminnmv_V,
         Fminp_V,

ARMeilleure/IntermediateRepresentation/Intrinsic.cs

@@ -108,6 +108,7 @@ namespace ARMeilleure.IntermediateRepresentation
         X86Popcnt,
         X86Por,
         X86Pshufb,
+        X86Pshufd,
         X86Pslld,
         X86Pslldq,
         X86Psllq,

Ryujinx.Tests/Cpu/CpuTestSimd.cs

@@ -715,19 +715,23 @@ namespace Ryujinx.Tests.Cpu
             };
         }
 
-        private static uint[] _F_Add_P_S_2SS_()
+        private static uint[] _F_Add_Max_Min_Nm_P_S_2SS_()
         {
             return new uint[]
             {
-                0x7E30D820u // FADDP S0, V1.2S
+                0x7E30D820u, // FADDP   S0, V1.2S
+                0x7E30C820u, // FMAXNMP S0, V1.2S
+                0x7EB0C820u  // FMINNMP S0, V1.2S
             };
         }
 
-        private static uint[] _F_Add_P_S_2DD_()
+        private static uint[] _F_Add_Max_Min_Nm_P_S_2DD_()
         {
             return new uint[]
             {
-                0x7E70D820u // FADDP D0, V1.2D
+                0x7E70D820u, // FADDP   D0, V1.2D
+                0x7E70C820u, // FMAXNMP D0, V1.2D
+                0x7EF0C820u  // FMINNMP D0, V1.2D
             };
         }
 
@@ -1802,12 +1806,13 @@ namespace Ryujinx.Tests.Cpu
         }
 
         [Test, Pairwise] [Explicit]
-        public void F_Add_P_S_2SS([ValueSource("_F_Add_P_S_2SS_")] uint opcodes,
-                                  [ValueSource("_2S_F_")] ulong a)
+        public void F_Add_Max_Min_Nm_P_S_2SS([ValueSource("_F_Add_Max_Min_Nm_P_S_2SS_")] uint opcodes,
+                                             [ValueSource("_2S_F_")] ulong a)
         {
             ulong z = TestContext.CurrentContext.Random.NextULong();
+
             V128 v0 = MakeVectorE0E1(z, z);
-            V128 v1 = MakeVectorE0(a);
+            V128 v1 = MakeVectorE0E1(a, z);
 
             int rnd = (int)TestContext.CurrentContext.Random.NextUInt();
 
@@ -1820,12 +1825,14 @@ namespace Ryujinx.Tests.Cpu
         }
 
         [Test, Pairwise] [Explicit]
-        public void F_Add_P_S_2DD([ValueSource("_F_Add_P_S_2DD_")] uint opcodes,
-                                  [ValueSource("_1D_F_")] ulong a)
+        public void F_Add_Max_Min_Nm_P_S_2DD([ValueSource("_F_Add_Max_Min_Nm_P_S_2DD_")] uint opcodes,
+                                             [ValueSource("_1D_F_")] ulong a0,
+                                             [ValueSource("_1D_F_")] ulong a1)
         {
             ulong z = TestContext.CurrentContext.Random.NextULong();
-            V128 v0 = MakeVectorE1(z);
-            V128 v1 = MakeVectorE0E1(a, a);
+
+            V128 v0 = MakeVectorE0E1(z, z);
+            V128 v1 = MakeVectorE0E1(a0, a1);
 
             int rnd = (int)TestContext.CurrentContext.Random.NextUInt();