Added a simple PtcFormatter library for deserialization/serialization, which does not require reflection, in use at PtcJumpTable and PtcProfiler; improves maintainability and simplicity/readability of affected code.

ARMeilleure/State/ExecutionMode.cs

@@ -1,6 +1,6 @@
 namespace ARMeilleure.State
 {
-    enum ExecutionMode
+    enum ExecutionMode : int
     {
         Aarch32Arm = 0,
         Aarch32Thumb = 1,

ARMeilleure/Translation/EmitterContext.cs

@@ -1,6 +1,7 @@
 using ARMeilleure.Diagnostics;
 using ARMeilleure.IntermediateRepresentation;
 using ARMeilleure.State;
+using ARMeilleure.Translation.PTC;
 using System;
 using System.Collections.Generic;
 using System.Reflection;
@@ -9,8 +10,6 @@ using static ARMeilleure.IntermediateRepresentation.OperandHelper;
 
 namespace ARMeilleure.Translation
 {
-    using PTC;
-
     class EmitterContext
     {
         private readonly Dictionary<Operand, BasicBlock> _irLabels;

ARMeilleure/Translation/PTC/Ptc.cs

@@ -549,7 +549,7 @@ namespace ARMeilleure.Translation.PTC
                         SkipReloc(infoEntry.RelocEntriesCount);
                         SkipUnwindInfo(unwindInfosReader);
                     }
-                    else if (infoEntry.HighCq || !PtcProfiler.ProfiledFuncs.TryGetValue(infoEntry.Address, out var value) || !value.highCq)
+                    else if (infoEntry.HighCq || !PtcProfiler.ProfiledFuncs.TryGetValue(infoEntry.Address, out var value) || !value.HighCq)
                     {
                         Span<byte> code = ReadCode(codesReader, infoEntry.CodeLen);
 
@@ -808,7 +808,7 @@ namespace ARMeilleure.Translation.PTC
                 Translator.DisposePools();
             }
 
-            int maxDegreeOfParallelism = Environment.ProcessorCount;
+            int maxDegreeOfParallelism = (Environment.ProcessorCount * 3) / 4;
 
             List<Thread> threads = new List<Thread>();
 

ARMeilleure/Translation/PTC/PtcFormatter.cs

@@ -0,0 +1,121 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+namespace ARMeilleure.Translation.PTC
+{
+    public class PtcFormatter
+    {
+        #region "Deserialize"
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static Dictionary<TKey, TValue> DeserializeDictionary<TKey, TValue>(Stream stream, Func<Stream, TValue> valueFunc) where TKey : unmanaged
+        {
+            Dictionary<TKey, TValue> dictionary = new();
+
+            int count = DeserializeStructure<int>(stream);
+
+            for (int i = 0; i < count; i++)
+            {
+                TKey key = DeserializeStructure<TKey>(stream);
+                TValue value = valueFunc(stream);
+
+                dictionary.Add(key, value);
+            }
+
+            return dictionary;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static List<T> DeserializeList<T>(Stream stream) where T : unmanaged
+        {
+            List<T> list = new();
+
+            int count = DeserializeStructure<int>(stream);
+
+            for (int i = 0; i < count; i++)
+            {
+                T item = DeserializeStructure<T>(stream);
+
+                list.Add(item);
+            }
+
+            return list;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static T DeserializeStructure<T>(Stream stream) where T : unmanaged
+        {
+            T structure = default(T);
+
+            Span<T> spanT = MemoryMarshal.CreateSpan(ref structure, 1);
+            stream.Read(MemoryMarshal.AsBytes(spanT));
+
+            return structure;
+        }
+        #endregion
+
+        #region "GetSerializeSize"
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static int GetSerializeSizeDictionary<TKey, TValue>(Dictionary<TKey, TValue> dictionary, Func<TValue, int> valueFunc) where TKey : unmanaged
+        {
+            int size = 0;
+
+            size += Unsafe.SizeOf<int>();
+
+            foreach ((_, TValue value) in dictionary)
+            {
+                size += Unsafe.SizeOf<TKey>();
+                size += valueFunc(value);
+            }
+
+            return size;
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static int GetSerializeSizeList<T>(List<T> list) where T : unmanaged
+        {
+            int size = 0;
+
+            size += Unsafe.SizeOf<int>();
+
+            size += list.Count * Unsafe.SizeOf<T>();
+
+            return size;
+        }
+        #endregion
+
+        #region "Serialize"
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static void SerializeDictionary<TKey, TValue>(Stream stream, Dictionary<TKey, TValue> dictionary, Action<Stream, TValue> valueAction) where TKey : unmanaged
+        {
+            SerializeStructure<int>(stream, ref Unsafe.AsRef(dictionary.Count));
+
+            foreach ((TKey key, TValue value) in dictionary)
+            {
+                SerializeStructure<TKey>(stream, ref Unsafe.AsRef(key));
+                valueAction(stream, value);
+            }
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static void SerializeList<T>(Stream stream, List<T> list) where T : unmanaged
+        {
+            SerializeStructure<int>(stream, ref Unsafe.AsRef(list.Count));
+
+            foreach (T item in list)
+            {
+                SerializeStructure<T>(stream, ref Unsafe.AsRef(item));
+            }
+        }
+
+        [MethodImpl(MethodImplOptions.AggressiveInlining)]
+        public static void SerializeStructure<T>(Stream stream, ref T structure) where T : unmanaged
+        {
+            Span<T> spanT = MemoryMarshal.CreateSpan(ref structure, 1);
+            stream.Write(MemoryMarshal.AsBytes(spanT));
+        }
+        #endregion
+    }
+}

ARMeilleure/Translation/PTC/PtcJumpTable.cs

@@ -6,14 +6,15 @@ using System.Diagnostics;
 using System.IO;
 using System.Runtime.InteropServices;
 
+using static ARMeilleure.Translation.PTC.PtcFormatter;
+
 namespace ARMeilleure.Translation.PTC
 {
     class PtcJumpTable
     {
+        [StructLayout(LayoutKind.Sequential, Pack = 1/*, Size = 16*/)]
         public struct TableEntry<TAddress>
         {
-            public const int Stride = 16; // Bytes.
-
             public int EntryIndex;
             public long GuestAddress;
             public TAddress HostAddress; // int
@@ -70,179 +71,38 @@ namespace ARMeilleure.Translation.PTC
 
         public static PtcJumpTable Deserialize(Stream stream)
         {
-            using (BinaryReader reader = new BinaryReader(stream, EncodingCache.UTF8NoBOM, true))
+            var jumpTable = DeserializeList<TableEntry<DirectHostAddress>>(stream);
-            {
+            var dynamicTable = DeserializeList<TableEntry<IndirectHostAddress>>(stream);
-                var jumpTable = new List<TableEntry<DirectHostAddress>>();
 
-                int jumpTableCount = reader.ReadInt32();
+            var targets = DeserializeList<ulong>(stream);
-
+            var dependants = DeserializeDictionary<ulong, List<int>>(stream, (stream) => DeserializeList<int>(stream));
-                for (int i = 0; i < jumpTableCount; i++)
+            var owners = DeserializeDictionary<ulong, List<int>>(stream, (stream) => DeserializeList<int>(stream));
-                {
-                    int entryIndex = reader.ReadInt32();
-                    long guestAddress = reader.ReadInt64();
-                    DirectHostAddress hostAddress = (DirectHostAddress)reader.ReadInt32();
-
-                    jumpTable.Add(new TableEntry<DirectHostAddress>(entryIndex, guestAddress, hostAddress));
-                }
-
-                var dynamicTable = new List<TableEntry<IndirectHostAddress>>();
-
-                int dynamicTableCount = reader.ReadInt32();
-
-                for (int i = 0; i < dynamicTableCount; i++)
-                {
-                    int entryIndex = reader.ReadInt32();
-                    long guestAddress = reader.ReadInt64();
-                    IndirectHostAddress hostAddress = (IndirectHostAddress)reader.ReadInt32();
-
-                    dynamicTable.Add(new TableEntry<IndirectHostAddress>(entryIndex, guestAddress, hostAddress));
-                }
-
-                var targets = new List<ulong>();
-
-                int targetsCount = reader.ReadInt32();
-
-                for (int i = 0; i < targetsCount; i++)
-                {
-                    ulong address = reader.ReadUInt64();
-
-                    targets.Add(address);
-                }
-
-                var dependants = new Dictionary<ulong, List<int>>();
-
-                int dependantsCount = reader.ReadInt32();
-
-                for (int i = 0; i < dependantsCount; i++)
-                {
-                    ulong address = reader.ReadUInt64();
-
-                    var entries = new List<int>();
-
-                    int entriesCount = reader.ReadInt32();
-
-                    for (int j = 0; j < entriesCount; j++)
-                    {
-                        int entry = reader.ReadInt32();
-
-                        entries.Add(entry);
-                    }
-
-                    dependants.Add(address, entries);
-                }
-
-                var owners = new Dictionary<ulong, List<int>>();
-
-                int ownersCount = reader.ReadInt32();
-
-                for (int i = 0; i < ownersCount; i++)
-                {
-                    ulong address = reader.ReadUInt64();
-
-                    var entries = new List<int>();
-
-                    int entriesCount = reader.ReadInt32();
-
-                    for (int j = 0; j < entriesCount; j++)
-                    {
-                        int entry = reader.ReadInt32();
-
-                        entries.Add(entry);
-                    }
-
-                    owners.Add(address, entries);
-                }
 
             return new PtcJumpTable(jumpTable, dynamicTable, targets, dependants, owners);
         }
-        }
 
         public static int GetSerializeSize(PtcJumpTable ptcJumpTable)
         {
-            const int CountSize = 4; // Bytes.
-
             int size = 0;
 
-            size += CountSize + ptcJumpTable._jumpTable.Count * TableEntry<DirectHostAddress>.Stride;
+            size += GetSerializeSizeList<TableEntry<DirectHostAddress>>(ptcJumpTable._jumpTable);
+            size += GetSerializeSizeList<TableEntry<IndirectHostAddress>>(ptcJumpTable._dynamicTable);
 
-            size += CountSize + ptcJumpTable._dynamicTable.Count * TableEntry<IndirectHostAddress>.Stride;
+            size += GetSerializeSizeList<ulong>(ptcJumpTable.Targets);
-
+            size += GetSerializeSizeDictionary<ulong, List<int>>(ptcJumpTable.Dependants, (list) => GetSerializeSizeList<int>(list));
-            size += CountSize + ptcJumpTable.Targets.Count * 8;
+            size += GetSerializeSizeDictionary<ulong, List<int>>(ptcJumpTable.Owners, (list) => GetSerializeSizeList<int>(list));
-
-            size += CountSize;
-            foreach (var kv in ptcJumpTable.Dependants)
-            {
-                size += 8; // kv.Key (address)
-                size += CountSize + kv.Value.Count * 4;
-            }
-
-            size += CountSize;
-            foreach (var kv in ptcJumpTable.Owners)
-            {
-                size += 8; // kv.Key (address)
-                size += CountSize + kv.Value.Count * 4;
-            }
 
             return size;
         }
 
         public static void Serialize(Stream stream, PtcJumpTable ptcJumpTable)
         {
-            using (BinaryWriter writer = new BinaryWriter(stream, EncodingCache.UTF8NoBOM, true))
+            SerializeList<TableEntry<DirectHostAddress>>(stream, ptcJumpTable._jumpTable);
-            {
+            SerializeList<TableEntry<IndirectHostAddress>>(stream, ptcJumpTable._dynamicTable);
-                writer.Write((int)ptcJumpTable._jumpTable.Count);
 
-                foreach (var tableEntry in ptcJumpTable._jumpTable)
+            SerializeList<ulong>(stream, ptcJumpTable.Targets);
-                {
+            SerializeDictionary<ulong, List<int>>(stream, ptcJumpTable.Dependants, (stream, list) => SerializeList<int>(stream, list));
-                    writer.Write((int)tableEntry.EntryIndex);
+            SerializeDictionary<ulong, List<int>>(stream, ptcJumpTable.Owners, (stream, list) => SerializeList<int>(stream, list));
-                    writer.Write((long)tableEntry.GuestAddress);
-                    writer.Write((int)tableEntry.HostAddress);
-                }
-
-                writer.Write((int)ptcJumpTable._dynamicTable.Count);
-
-                foreach (var tableEntry in ptcJumpTable._dynamicTable)
-                {
-                    writer.Write((int)tableEntry.EntryIndex);
-                    writer.Write((long)tableEntry.GuestAddress);
-                    writer.Write((int)tableEntry.HostAddress);
-                }
-
-                writer.Write((int)ptcJumpTable.Targets.Count);
-
-                foreach (ulong address in ptcJumpTable.Targets)
-                {
-                    writer.Write((ulong)address);
-                }
-
-                writer.Write((int)ptcJumpTable.Dependants.Count);
-
-                foreach (var kv in ptcJumpTable.Dependants)
-                {
-                    writer.Write((ulong)kv.Key); // address
-
-                    writer.Write((int)kv.Value.Count);
-
-                    foreach (int entry in kv.Value)
-                    {
-                        writer.Write((int)entry);
-                    }
-                }
-
-                writer.Write((int)ptcJumpTable.Owners.Count);
-
-                foreach (var kv in ptcJumpTable.Owners)
-                {
-                    writer.Write((ulong)kv.Key); // address
-
-                    writer.Write((int)kv.Value.Count);
-
-                    foreach (int entry in kv.Value)
-                    {
-                        writer.Write((int)entry);
-                    }
-                }
-            }
         }
 
         public void Initialize(JumpTable jumpTable)
@@ -349,7 +209,7 @@ namespace ARMeilleure.Translation.PTC
                     }
                     else
                     {
-                        if (!PtcProfiler.ProfiledFuncs.TryGetValue((ulong)guestAddress, out var value) || !value.highCq)
+                        if (!PtcProfiler.ProfiledFuncs.TryGetValue((ulong)guestAddress, out var value) || !value.HighCq)
                         {
                             throw new KeyNotFoundException($"({nameof(guestAddress)} = 0x{(ulong)guestAddress:X16})");
                         }

ARMeilleure/Translation/PTC/PtcProfiler.cs

@@ -6,9 +6,12 @@ using System.Collections.Generic;
 using System.Diagnostics;
 using System.IO;
 using System.IO.Compression;
+using System.Runtime.InteropServices;
 using System.Security.Cryptography;
 using System.Threading;
 
+using static ARMeilleure.Translation.PTC.PtcFormatter;
+
 namespace ARMeilleure.Translation.PTC
 {
     public static class PtcProfiler
@@ -31,7 +34,7 @@ namespace ARMeilleure.Translation.PTC
 
         private static byte[] _lastHash;
 
-        internal static Dictionary<ulong, (ExecutionMode mode, bool highCq)> ProfiledFuncs { get; private set; }
+        internal static Dictionary<ulong, FuncProfile> ProfiledFuncs { get; private set; }
 
         internal static bool Enabled { get; private set; }
 
@@ -49,7 +52,7 @@ namespace ARMeilleure.Translation.PTC
 
             _disposed = false;
 
-            ProfiledFuncs = new Dictionary<ulong, (ExecutionMode, bool)>();
+            ProfiledFuncs = new Dictionary<ulong, FuncProfile>();
 
             Enabled = false;
         }
@@ -62,7 +65,7 @@ namespace ARMeilleure.Translation.PTC
 
                 lock (_lock)
                 {
-                    ProfiledFuncs.TryAdd(address, (mode, highCq: false));
+                    ProfiledFuncs.TryAdd(address, new FuncProfile(mode, highCq: false));
                 }
             }
         }
@@ -77,7 +80,7 @@ namespace ARMeilleure.Translation.PTC
                 {
                     Debug.Assert(ProfiledFuncs.ContainsKey(address));
 
-                    ProfiledFuncs[address] = (mode, highCq: true);
+                    ProfiledFuncs[address] = new FuncProfile(mode, highCq: true);
                 }
             }
         }
@@ -97,7 +100,7 @@ namespace ARMeilleure.Translation.PTC
 
                 if (!funcs.ContainsKey(address))
                 {
-                    profiledFuncsToTranslate.Enqueue((address, profiledFunc.Value.mode, profiledFunc.Value.highCq));
+                    profiledFuncsToTranslate.Enqueue((address, profiledFunc.Value.Mode, profiledFunc.Value.HighCq));
                 }
             }
 
@@ -194,7 +197,7 @@ namespace ARMeilleure.Translation.PTC
                 }
                 catch
                 {
-                    ProfiledFuncs = new Dictionary<ulong, (ExecutionMode, bool)>();
+                    ProfiledFuncs = new Dictionary<ulong, FuncProfile>();
 
                     InvalidateCompressedStream(compressedStream);
 
@@ -230,26 +233,9 @@ namespace ARMeilleure.Translation.PTC
             }
         }
 
-        private static Dictionary<ulong, (ExecutionMode, bool)> Deserialize(Stream stream)
+        private static Dictionary<ulong, FuncProfile> Deserialize(Stream stream)
         {
-            using (BinaryReader reader = new BinaryReader(stream, EncodingCache.UTF8NoBOM, true))
+            return DeserializeDictionary<ulong, FuncProfile>(stream, (stream) => DeserializeStructure<FuncProfile>(stream));
-            {
-                var profiledFuncs = new Dictionary<ulong, (ExecutionMode, bool)>();
-
-                int profiledFuncsCount = reader.ReadInt32();
-
-                for (int i = 0; i < profiledFuncsCount; i++)
-                {
-                    ulong address = reader.ReadUInt64();
-
-                    ExecutionMode mode = (ExecutionMode)reader.ReadInt32();
-                    bool highCq = reader.ReadBoolean();
-
-                    profiledFuncs.Add(address, (mode, highCq));
-                }
-
-                return profiledFuncs;
-            }
         }
 
         private static void InvalidateCompressedStream(FileStream compressedStream)
@@ -348,20 +334,9 @@ namespace ARMeilleure.Translation.PTC
             }
         }
 
-        private static void Serialize(Stream stream, Dictionary<ulong, (ExecutionMode mode, bool highCq)> profiledFuncs)
+        private static void Serialize(Stream stream, Dictionary<ulong, FuncProfile> profiledFuncs)
         {
-            using (BinaryWriter writer = new BinaryWriter(stream, EncodingCache.UTF8NoBOM, true))
+            SerializeDictionary<ulong, FuncProfile>(stream, profiledFuncs, (stream, structure) => SerializeStructure<FuncProfile>(stream, ref structure));
-            {
-                writer.Write((int)profiledFuncs.Count);
-
-                foreach (var kv in profiledFuncs)
-                {
-                    writer.Write((ulong)kv.Key); // address
-
-                    writer.Write((int)kv.Value.mode);
-                    writer.Write((bool)kv.Value.highCq);
-                }
-            }
         }
 
         private struct Header
@@ -371,6 +346,19 @@ namespace ARMeilleure.Translation.PTC
             public uint InfoFileVersion;
         }
 
+        [StructLayout(LayoutKind.Sequential, Pack = 1/*, Size = 5*/)]
+        internal struct FuncProfile
+        {
+            public ExecutionMode Mode;
+            public bool HighCq;
+
+            public FuncProfile(ExecutionMode mode, bool highCq)
+            {
+                Mode = mode;
+                HighCq = highCq;
+            }
+        }
+
         internal static void Start()
         {
             if (Ptc.State == PtcState.Enabled ||