From db45688aa8d0e63d3ffbe50351722ef32f8360f8 Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Fri, 9 Sep 2022 21:47:38 -0300
Subject: Implement VRSRA, VRSHRN, VQSHRUN, VQMOVN, VQMOVUN, VQADD, VQSUB,
 VRHADD, VPADDL, VSUBL, VQDMULH and VMLAL Arm32 NEON instructions (#3677)

* Implement VRSRA, VRSHRN, VQSHRUN, VQMOVN, VQMOVUN, VQADD, VQSUB, VRHADD, VPADDL, VSUBL, VQDMULH and VMLAL Arm32 NEON instructions

* PPTC version

* Fix VQADD/VQSUB

* Improve MRC/MCR handling and exception messages

In case data is being recompiled as code, we don't want to throw at emit stage, instead we should only throw if it actually tries to execute
---
 ARMeilleure/Instructions/InstEmitSimdHelper32.cs | 71 ++++++++++++++++++++++++
 1 file changed, 71 insertions(+)

(limited to 'ARMeilleure/Instructions/InstEmitSimdHelper32.cs')

diff --git a/ARMeilleure/Instructions/InstEmitSimdHelper32.cs b/ARMeilleure/Instructions/InstEmitSimdHelper32.cs
index 07ff481c..c530985f 100644
--- a/ARMeilleure/Instructions/InstEmitSimdHelper32.cs
+++ b/ARMeilleure/Instructions/InstEmitSimdHelper32.cs
@@ -219,6 +219,25 @@ namespace ARMeilleure.Instructions
 
         // Integer
 
+        public static void EmitVectorUnaryAccumulateOpI32(ArmEmitterContext context, Func1I emit, bool signed)
+        {
+            OpCode32Simd op = (OpCode32Simd)context.CurrOp;
+
+            Operand res = GetVecA32(op.Qd);
+
+            int elems = op.GetBytesCount() >> op.Size;
+
+            for (int index = 0; index < elems; index++)
+            {
+                Operand de = EmitVectorExtract32(context, op.Qd, op.Id + index, op.Size, signed);
+                Operand me = EmitVectorExtract32(context, op.Qm, op.Im + index, op.Size, signed);
+
+                res = EmitVectorInsert(context, res, context.Add(de, emit(me)), op.Id + index, op.Size);
+            }
+
+            context.Copy(GetVecA32(op.Qd), res);
+        }
+
         public static void EmitVectorUnaryOpI32(ArmEmitterContext context, Func1I emit, bool signed)
         {
             OpCode32Simd op = (OpCode32Simd)context.CurrOp;
@@ -385,6 +404,18 @@ namespace ARMeilleure.Instructions
             EmitVectorUnaryOpI32(context, emit, true);
         }
 
+        public static void EmitVectorUnaryOpSx32(ArmEmitterContext context, Func1I emit, bool accumulate)
+        {
+            if (accumulate)
+            {
+                EmitVectorUnaryAccumulateOpI32(context, emit, true);
+            }
+            else
+            {
+                EmitVectorUnaryOpI32(context, emit, true);
+            }
+        }
+
         public static void EmitVectorBinaryOpSx32(ArmEmitterContext context, Func2I emit)
         {
             EmitVectorBinaryOpI32(context, emit, true);
@@ -400,6 +431,18 @@ namespace ARMeilleure.Instructions
             EmitVectorUnaryOpI32(context, emit, false);
         }
 
+        public static void EmitVectorUnaryOpZx32(ArmEmitterContext context, Func1I emit, bool accumulate)
+        {
+            if (accumulate)
+            {
+                EmitVectorUnaryAccumulateOpI32(context, emit, false);
+            }
+            else
+            {
+                EmitVectorUnaryOpI32(context, emit, false);
+            }
+        }
+
         public static void EmitVectorBinaryOpZx32(ArmEmitterContext context, Func2I emit)
         {
             EmitVectorBinaryOpI32(context, emit, false);
@@ -592,6 +635,34 @@ namespace ARMeilleure.Instructions
             context.Copy(GetVecA32(op.Qd), res);
         }
 
+        public static void EmitVectorPairwiseLongOpI32(ArmEmitterContext context, Func2I emit, bool signed)
+        {
+            OpCode32Simd op = (OpCode32Simd)context.CurrOp;
+
+            int elems = (op.Q ? 16 : 8) >> op.Size;
+            int pairs = elems >> 1;
+            int id = (op.Vd & 1) * pairs;
+
+            Operand res = GetVecA32(op.Qd);
+
+            for (int index = 0; index < pairs; index++)
+            {
+                int pairIndex = index << 1;
+                Operand m1 = EmitVectorExtract32(context, op.Qm, op.Im + pairIndex, op.Size, signed);
+                Operand m2 = EmitVectorExtract32(context, op.Qm, op.Im + pairIndex + 1, op.Size, signed);
+
+                if (op.Size == 2)
+                {
+                    m1 = signed ? context.SignExtend32(OperandType.I64, m1) : context.ZeroExtend32(OperandType.I64, m1);
+                    m2 = signed ? context.SignExtend32(OperandType.I64, m2) : context.ZeroExtend32(OperandType.I64, m2);
+                }
+
+                res = EmitVectorInsert(context, res, emit(m1, m2), id + index, op.Size + 1);
+            }
+
+            context.Copy(GetVecA32(op.Qd), res);
+        }
+
         // Narrow
 
         public static void EmitVectorUnaryNarrowOp32(ArmEmitterContext context, Func1I emit, bool signed = false)
-- 
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