1 files changed, 0 insertions, 198 deletions
diff --git a/ARMeilleure/Translation/Cache/JitCache.cs b/ARMeilleure/Translation/Cache/JitCache.cs
deleted file mode 100644
index f496a8e9..00000000
--- a/ARMeilleure/Translation/Cache/JitCache.cs
+++ /dev/null
@@ -1,198 +0,0 @@
-using ARMeilleure.CodeGen;
-using ARMeilleure.CodeGen.Unwinding;
-using ARMeilleure.Memory;
-using ARMeilleure.Native;
-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.Runtime.InteropServices;
-
-namespace ARMeilleure.Translation.Cache
-{
-    static class JitCache
-    {
-        private const int PageSize = 4 * 1024;
-        private const int PageMask = PageSize - 1;
-
-        private const int CodeAlignment = 4; // Bytes.
-        private const int CacheSize = 2047 * 1024 * 1024;
-
-        private static ReservedRegion _jitRegion;
-        private static JitCacheInvalidation _jitCacheInvalidator;
-
-        private static CacheMemoryAllocator _cacheAllocator;
-
-        private static readonly List<CacheEntry> _cacheEntries = new List<CacheEntry>();
-
-        private static readonly object _lock = new object();
-        private static bool _initialized;
-
-        public static void Initialize(IJitMemoryAllocator allocator)
-        {
-            if (_initialized) return;
-
-            lock (_lock)
-            {
-                if (_initialized) return;
-
-                _jitRegion = new ReservedRegion(allocator, CacheSize);
-                _jitCacheInvalidator = new JitCacheInvalidation(allocator);
-
-                _cacheAllocator = new CacheMemoryAllocator(CacheSize);
-
-                if (OperatingSystem.IsWindows())
-                {
-                    JitUnwindWindows.InstallFunctionTableHandler(_jitRegion.Pointer, CacheSize, _jitRegion.Pointer + Allocate(PageSize));
-                }
-
-                _initialized = true;
-            }
-        }
-
-        public static IntPtr Map(CompiledFunction func)
-        {
-            byte[] code = func.Code;
-
-            lock (_lock)
-            {
-                Debug.Assert(_initialized);
-
-                int funcOffset = Allocate(code.Length);
-
-                IntPtr funcPtr = _jitRegion.Pointer + funcOffset;
-
-                if (OperatingSystem.IsMacOS() && RuntimeInformation.ProcessArchitecture == Architecture.Arm64)
-                {
-                    unsafe
-                    {
-                        fixed (byte *codePtr = code)
-                        {
-                            JitSupportDarwin.Copy(funcPtr, (IntPtr)codePtr, (ulong)code.Length);
-                        }
-                    }
-                }
-                else
-                {
-                    ReprotectAsWritable(funcOffset, code.Length);
-                    Marshal.Copy(code, 0, funcPtr, code.Length);
-                    ReprotectAsExecutable(funcOffset, code.Length);
-
-                    _jitCacheInvalidator.Invalidate(funcPtr, (ulong)code.Length);
-                }
-
-                Add(funcOffset, code.Length, func.UnwindInfo);
-
-                return funcPtr;
-            }
-        }
-
-        public static void Unmap(IntPtr pointer)
-        {
-            lock (_lock)
-            {
-                Debug.Assert(_initialized);
-
-                int funcOffset = (int)(pointer.ToInt64() - _jitRegion.Pointer.ToInt64());
-
-                bool result = TryFind(funcOffset, out CacheEntry entry);
-                Debug.Assert(result);
-
-                _cacheAllocator.Free(funcOffset, AlignCodeSize(entry.Size));
-
-                Remove(funcOffset);
-            }
-        }
-
-        private static void ReprotectAsWritable(int offset, int size)
-        {
-            int endOffs = offset + size;
-
-            int regionStart = offset & ~PageMask;
-            int regionEnd = (endOffs + PageMask) & ~PageMask;
-
-            _jitRegion.Block.MapAsRwx((ulong)regionStart, (ulong)(regionEnd - regionStart));
-        }
-
-        private static void ReprotectAsExecutable(int offset, int size)
-        {
-            int endOffs = offset + size;
-
-            int regionStart = offset & ~PageMask;
-            int regionEnd = (endOffs + PageMask) & ~PageMask;
-
-            _jitRegion.Block.MapAsRx((ulong)regionStart, (ulong)(regionEnd - regionStart));
-        }
-
-        private static int Allocate(int codeSize)
-        {
-            codeSize = AlignCodeSize(codeSize);
-
-            int allocOffset = _cacheAllocator.Allocate(codeSize);
-
-            if (allocOffset < 0)
-            {
-                throw new OutOfMemoryException("JIT Cache exhausted.");
-            }
-
-            _jitRegion.ExpandIfNeeded((ulong)allocOffset + (ulong)codeSize);
-
-            return allocOffset;
-        }
-
-        private static int AlignCodeSize(int codeSize)
-        {
-            return checked(codeSize + (CodeAlignment - 1)) & ~(CodeAlignment - 1);
-        }
-
-        private static void Add(int offset, int size, UnwindInfo unwindInfo)
-        {
-            CacheEntry entry = new CacheEntry(offset, size, unwindInfo);
-
-            int index = _cacheEntries.BinarySearch(entry);
-
-            if (index < 0)
-            {
-                index = ~index;
-            }
-
-            _cacheEntries.Insert(index, entry);
-        }
-
-        private static void Remove(int offset)
-        {
-            int index = _cacheEntries.BinarySearch(new CacheEntry(offset, 0, default));
-
-            if (index < 0)
-            {
-                index = ~index - 1;
-            }
-
-            if (index >= 0)
-            {
-                _cacheEntries.RemoveAt(index);
-            }
-        }
-
-        public static bool TryFind(int offset, out CacheEntry entry)
-        {
-            lock (_lock)
-            {
-                int index = _cacheEntries.BinarySearch(new CacheEntry(offset, 0, default));
-
-                if (index < 0)
-                {
-                    index = ~index - 1;
-                }
-
-                if (index >= 0)
-                {
-                    entry = _cacheEntries[index];
-                    return true;
-                }
-            }
-
-            entry = default;
-            return false;
-        }
-    }
-}
-\ No newline at end of file