internal IMethod GetMethod(object token, ILType contextType, ILMethod contextMethod, out bool invalidToken)
{
string methodname = null;
string typename = null;
List <IType> paramList = null;
int hashCode = token.GetHashCode();
IMethod method;
IType[] genericArguments = null;
IType returnType;
invalidToken = false;
bool isConstructor = false;
if (mapMethod.TryGetValue(hashCode, out method))
{
return(method);
}
IType type = null;
if (token is Mono.Cecil.MethodReference)
{
Mono.Cecil.MethodReference _ref = (token as Mono.Cecil.MethodReference);
if (_ref.FullName == "System.Void System.Object::.ctor()")
{
mapMethod[hashCode] = null;
return(null);
}
if (_ref.FullName == "System.Void System.Attribute::.ctor()")
{
mapMethod[hashCode] = null;
return(null);
}
methodname = _ref.Name;
var typeDef = _ref.DeclaringType;
type = GetType(typeDef, contextType, contextMethod);
if (type == null)
{
throw new KeyNotFoundException("Cannot find type:" + typename);
}
if (token is Mono.Cecil.MethodDefinition)
{
var def = _ref as MethodDefinition;
isConstructor = def.IsConstructor;
}
else
{
isConstructor = methodname == ".ctor";
}
if (_ref.IsGenericInstance)
{
GenericInstanceMethod gim = (GenericInstanceMethod)_ref;
genericArguments = new IType[gim.GenericArguments.Count];
for (int i = 0; i < genericArguments.Length; i++)
{
if (gim.GenericArguments[i].IsGenericParameter)
{
invalidToken = true;
}
var gt = GetType(gim.GenericArguments[i], contextType, contextMethod);
if (gt == null)
{
gt = contextMethod.FindGenericArgument(gim.GenericArguments[i].Name);
if (gt == null)//This means it contains unresolved generic arguments, which means it's not searching the generic instance
{
genericArguments = null;
break;
}
else
{
genericArguments[i] = gt;
}
}
else
{
genericArguments[i] = gt;
}
}
}
paramList = _ref.GetParamList(this, contextType, contextMethod, genericArguments);
returnType = GetType(_ref.ReturnType, contextType, null);
}
else
{
throw new NotImplementedException();
//Mono.Cecil.GenericInstanceMethod gmethod = _def as Mono.Cecil.GenericInstanceMethod;
//genlist = new MethodParamList(environment, gmethod);
}
if (isConstructor)
{
method = type.GetConstructor(paramList);
}
else
{
method = type.GetMethod(methodname, paramList, genericArguments, returnType);
if (method != null && method.IsGenericInstance)
{
mapMethod[method.GetHashCode()] = method;
}
}
if (method == null)
{
if (isConstructor && contextType.FirstCLRBaseType != null && contextType.FirstCLRBaseType is CrossBindingAdaptor && type.TypeForCLR == ((CrossBindingAdaptor)contextType.FirstCLRBaseType).BaseCLRType)
{
method = contextType.BaseType.GetConstructor(paramList);
if (method == null)
{
throw new KeyNotFoundException("Cannot find method:" + methodname);
}
invalidToken = true;
mapMethod[method.GetHashCode()] = method;
}
else
{
throw new KeyNotFoundException("Cannot find method:" + methodname);
}
}
if (!invalidToken)
{
mapMethod[hashCode] = method;
}
return(method);
}
public OpCodeR[] Compile(out int stackRegisterCnt, out Dictionary <int, int[]> switchTargets, Dictionary <Instruction, int> addr, out Dictionary <int, RegisterVMSymbol> symbols)
{
#if DEBUG && !NO_PROFILER
if (System.Threading.Thread.CurrentThread.ManagedThreadId == method.AppDomain.UnityMainThreadID)
#if UNITY_5_5_OR_NEWER
{ UnityEngine.Profiling.Profiler.BeginSample("JITCompiler.Compile"); }
#else
{ UnityEngine.Profiler.BeginSample("JITCompiler.Compile"); }
#endif
#endif
method.Compiling = true;
symbols = new Dictionary <int, RegisterVMSymbol>();
var body = def.Body;
short locVarRegStart = (short)def.Parameters.Count;
if (!def.IsStatic)
{
locVarRegStart++;
}
short baseRegIdx = (short)(locVarRegStart + body.Variables.Count);
short baseRegStart = baseRegIdx;
var blocks = CodeBasicBlock.BuildBasicBlocks(body, out entryMapping);
foreach (var i in blocks)
{
baseRegIdx = baseRegStart;
if (IsCatchHandler(i, body))
{
baseRegIdx++;
}
else
{
if (i.PreviousBlocks.Count > 0)
{
foreach (var j in i.PreviousBlocks)
{
if (j.EndRegister >= 0)
{
baseRegIdx = j.EndRegister;
break;
}
}
}
}
foreach (var ins in i.Instructions)
{
Translate(i, ins, locVarRegStart, ref baseRegIdx);
}
i.EndRegister = baseRegIdx;
}
//Append init local
var first = blocks[0];
int idx = 0;
int appendIdx = 0;
HashSet <CodeBasicBlock> visitedBlocks = body.Variables.Count > 0 ? new HashSet <CodeBasicBlock>() : null;
for (short r = locVarRegStart; r < locVarRegStart + body.Variables.Count; r++)
{
visitedBlocks.Clear();
foreach (var b in blocks)
{
if (b.PreviousBlocks.Count == 0)
{
var lt = def.Body.Variables[r - locVarRegStart];
bool needInitOjb = false;
if (lt.VariableType.IsGenericParameter)
{
var gt = method.FindGenericArgument(lt.VariableType.Name);
needInitOjb = gt.IsValueType && !gt.IsPrimitive;
}
else
{
needInitOjb = lt.VariableType.IsValueType && !lt.VariableType.IsPrimitive;
}
if (needInitOjb || CheckNeedInitObj(b, r, method.ReturnType != method.AppDomain.VoidType, visitedBlocks))
{
OpCodeR code = new OpCodeR();
code.Code = OpCodeREnum.Initobj;
code.Register1 = r;
code.Operand = method.GetTypeTokenHashCode(body.Variables[idx].VariableType);
code.Operand2 = 1;
first.FinalInstructions.Insert(appendIdx++, code);
break;
}
}
}
idx++;
}
for (idx = first.FinalInstructions.Count - 1; idx >= 0; idx--)
{
if (idx >= appendIdx)
{
RegisterVMSymbol symbol;
if (first.InstructionMapping.TryGetValue(idx - appendIdx, out symbol))
{
first.InstructionMapping[idx] = first.InstructionMapping[idx - appendIdx];
}
}
else
{
first.InstructionMapping.Remove(idx);
}
}
#if OUTPUT_JIT_RESULT
int cnt = 1;
Console.WriteLine($"JIT Results for {method}:");
foreach (var b in blocks)
{
Console.WriteLine($"Block {cnt++}, Instructions:{b.FinalInstructions.Count}");
for (int i = 0; i < b.FinalInstructions.Count; i++)
{
Console.WriteLine($" {i}:{b.FinalInstructions[i].ToString(appdomain)}");
}
}
#endif
Optimizer.ForwardCopyPropagation(blocks, hasReturn, baseRegStart);
Optimizer.BackwardsCopyPropagation(blocks, hasReturn, baseRegStart);
Optimizer.ForwardCopyPropagation(blocks, hasReturn, baseRegStart);
Optimizer.EliminateConstantLoad(blocks, hasReturn);
#if OUTPUT_JIT_RESULT
cnt = 1;
Console.WriteLine($"Optimizer Results for {method}:");
foreach (var b in blocks)
{
Console.WriteLine($"Block {cnt++}, Instructions:{b.FinalInstructions.Count}");
for (int i = 0; i < b.FinalInstructions.Count; i++)
{
string canRemove = b.CanRemove.Contains(i) ? "(x)" : "";
Console.WriteLine($" {i}:{canRemove}{b.FinalInstructions[i].ToString(appdomain)}");
}
}
#endif
List <OpCodeR> res = new List <OpCodeR>();
Dictionary <int, int> jumpTargets = new Dictionary <int, int>();
int bIdx = 0;
HashSet <int> inlinedBranches = new HashSet <int>();
int curIndex = 0;
foreach (var b in blocks)
{
jumpTargets[bIdx++] = res.Count;
bool isInline = false;
int inlineOffset = 0;
bool inlineAddressSet = false;
for (idx = 0; idx < b.FinalInstructions.Count; idx++)
{
RegisterVMSymbol oriIns;
bool hasOri = b.InstructionMapping.TryGetValue(idx, out oriIns);
if (hasOri)
{
if (isInline)
{
if (!inlineAddressSet)
{
while (oriIns.ParentSymbol != null)
{
oriIns = oriIns.ParentSymbol.Value;
}
addr[oriIns.Instruction] = curIndex;
inlineAddressSet = true;
}
}
else
{
addr[oriIns.Instruction] = curIndex;
}
}
if (b.CanRemove.Contains(idx))
{
if (isInline)
{
inlineOffset--;
}
continue;
}
var ins = b.FinalInstructions[idx];
if (ins.Code == OpCodeREnum.InlineStart)
{
inlineAddressSet = false;
isInline = true;
inlineOffset = res.Count;
}
else if (ins.Code == OpCodeREnum.InlineEnd)
{
isInline = false;
}
else
{
if (isInline)
{
if (Optimizer.IsBranching(ins.Code))
{
ins.Operand += inlineOffset;
inlinedBranches.Add(res.Count);
}
else if (Optimizer.IsIntermediateBranching(ins.Code))
{
ins.Operand4 += inlineOffset;
inlinedBranches.Add(res.Count);
}
else if (ins.Code == OpCodeREnum.Switch)
{
int[] targets = jumptables[ins.Operand];
for (int j = 0; j < targets.Length; j++)
{
targets[j] = targets[j] + inlineOffset;
}
inlinedBranches.Add(res.Count);
}
}
if (hasOri)
{
symbols.Add(res.Count, oriIns);
}
curIndex++;
res.Add(ins);
}
}
}
for (int i = 0; i < res.Count; i++)
{
var op = res[i];
if (Optimizer.IsBranching(op.Code) && !inlinedBranches.Contains(i))
{
op.Operand = jumpTargets[op.Operand];
res[i] = op;
}
else if (Optimizer.IsIntermediateBranching(op.Code) && !inlinedBranches.Contains(i))
{
op.Operand4 = jumpTargets[op.Operand4];
res[i] = op;
}
else if (op.Code == OpCodeREnum.Switch && !inlinedBranches.Contains(i))
{
int[] targets = jumptables[op.Operand];
for (int j = 0; j < targets.Length; j++)
{
targets[j] = jumpTargets[targets[j]];
}
}
else if (op.Code == OpCodeREnum.Leave || op.Code == OpCodeREnum.Leave_S)
{
var oriIns = symbols[i];
op.Operand = addr[(Instruction)oriIns.Instruction.Operand];
res[i] = op;
}
}
#if DEBUG && !DISABLE_ILRUNTIME_DEBUG
//FixSymbol(symbols);
#else
symbols = null;
#endif
switchTargets = jumptables;
var totalRegCnt = Optimizer.CleanupRegister(res, locVarRegStart, hasReturn);
stackRegisterCnt = totalRegCnt - baseRegStart;
#if OUTPUT_JIT_RESULT
Console.WriteLine($"Final Results for {method}:");
for (int i = 0; i < res.Count; i++)
{
Console.WriteLine($" {i}:{res[i].ToString(appdomain)}");
}
#endif
method.Compiling = false;
var arr = res.ToArray();
#if DEBUG && !NO_PROFILER
if (System.Threading.Thread.CurrentThread.ManagedThreadId == method.AppDomain.UnityMainThreadID)
#if UNITY_5_5_OR_NEWER
{ UnityEngine.Profiling.Profiler.EndSample(); }
#else
{ UnityEngine.Profiler.EndSample(); }
#endif
#endif
return(arr);
}