void PrewarmBody(HashSet <ILMethod> alreadyPrewarmed)
{
//当前方法用到的IType，提前InitializeMethods()。各个子调用，提前InitParameters()
var body = Body;
foreach (var ins in body)
{
switch (ins.Code)
{
case OpCodeEnum.Call:
case OpCodeEnum.Newobj:
case OpCodeEnum.Ldftn:
case OpCodeEnum.Ldvirtftn:
case OpCodeEnum.Callvirt:
{
var m = appdomain.GetMethod(ins.TokenInteger);
if (m is ILMethod)
{
ILMethod ilm = (ILMethod)m;
//如果参数alreadyPrewarmed不为空，则不仅prewarm当前方法，还会递归prewarm所有子调用
//如果参数alreadyPrewarmed为空，则只prewarm当前方法
if (alreadyPrewarmed != null)
{
ilm.Prewarm(alreadyPrewarmed);
}
}
else if (m is CLRMethod)
{
CLRMethod clrm = (CLRMethod)m;
ILRuntime.CLR.Utils.Extensions.GetTypeFlags(clrm.DeclearingType.TypeForCLR);
}
}
break;
case OpCodeEnum.Ldfld:
case OpCodeEnum.Stfld:
case OpCodeEnum.Ldflda:
case OpCodeEnum.Ldsfld:
case OpCodeEnum.Ldsflda:
case OpCodeEnum.Stsfld:
case OpCodeEnum.Ldtoken:
{
//提前InitializeBaseType()
var t = appdomain.GetType((int)(ins.TokenLong >> 32));
if (t != null)
{
var baseType = t.BaseType;
}
}
break;
}
}
}
unsafe void InitToken(ref OpCode code, object token, Dictionary <Mono.Cecil.Cil.Instruction, int> addr)
{
switch (code.Code)
{
case OpCodeEnum.Leave:
case OpCodeEnum.Leave_S:
case OpCodeEnum.Br:
case OpCodeEnum.Br_S:
case OpCodeEnum.Brtrue:
case OpCodeEnum.Brtrue_S:
case OpCodeEnum.Brfalse:
case OpCodeEnum.Brfalse_S:
//比较流程控制
case OpCodeEnum.Beq:
case OpCodeEnum.Beq_S:
case OpCodeEnum.Bne_Un:
case OpCodeEnum.Bne_Un_S:
case OpCodeEnum.Bge:
case OpCodeEnum.Bge_S:
case OpCodeEnum.Bge_Un:
case OpCodeEnum.Bge_Un_S:
case OpCodeEnum.Bgt:
case OpCodeEnum.Bgt_S:
case OpCodeEnum.Bgt_Un:
case OpCodeEnum.Bgt_Un_S:
case OpCodeEnum.Ble:
case OpCodeEnum.Ble_S:
case OpCodeEnum.Ble_Un:
case OpCodeEnum.Ble_Un_S:
case OpCodeEnum.Blt:
case OpCodeEnum.Blt_S:
case OpCodeEnum.Blt_Un:
case OpCodeEnum.Blt_Un_S:
code.TokenInteger = addr[(Mono.Cecil.Cil.Instruction)token];
break;
case OpCodeEnum.Ldc_I4:
code.TokenInteger = (int)token;
break;
case OpCodeEnum.Ldc_I4_S:
code.TokenInteger = (sbyte)token;
break;
case OpCodeEnum.Ldc_I8:
code.TokenLong = (long)token;
break;
case OpCodeEnum.Ldc_R4:
{
float val = (float)token;
code.TokenInteger = *(int *)&val;
}
break;
case OpCodeEnum.Ldc_R8:
{
double val = (double)token;
code.TokenLong = *(long *)&val;
}
break;
case OpCodeEnum.Stloc:
case OpCodeEnum.Stloc_S:
case OpCodeEnum.Ldloc:
case OpCodeEnum.Ldloc_S:
case OpCodeEnum.Ldloca:
case OpCodeEnum.Ldloca_S:
{
Mono.Cecil.Cil.VariableDefinition vd = (Mono.Cecil.Cil.VariableDefinition)token;
code.TokenInteger = vd.Index;
}
break;
case OpCodeEnum.Ldarg_S:
case OpCodeEnum.Ldarg:
case OpCodeEnum.Ldarga:
case OpCodeEnum.Ldarga_S:
case OpCodeEnum.Starg:
case OpCodeEnum.Starg_S:
{
Mono.Cecil.ParameterDefinition vd = (Mono.Cecil.ParameterDefinition)token;
code.TokenInteger = vd.Index;
if (HasThis)
{
code.TokenInteger++;
}
}
break;
case OpCodeEnum.Call:
case OpCodeEnum.Newobj:
case OpCodeEnum.Ldftn:
case OpCodeEnum.Ldvirtftn:
case OpCodeEnum.Callvirt:
{
bool invalidToken;
var m = appdomain.GetMethod(token, declaringType, this, out invalidToken);
if (m != null)
{
if (invalidToken)
{
code.TokenInteger = m.GetHashCode();
}
else
{
code.TokenInteger = token.GetHashCode();
}
}
else
{
//Cannot find method or the method is dummy
MethodReference _ref = (MethodReference)token;
int paramCnt = _ref.HasParameters ? _ref.Parameters.Count : 0;
if (_ref.HasThis)
{
paramCnt++;
}
code.TokenLong = paramCnt;
}
}
break;
case OpCodeEnum.Constrained:
case OpCodeEnum.Box:
case OpCodeEnum.Unbox_Any:
case OpCodeEnum.Unbox:
case OpCodeEnum.Initobj:
case OpCodeEnum.Isinst:
case OpCodeEnum.Newarr:
case OpCodeEnum.Stobj:
case OpCodeEnum.Ldobj:
{
code.TokenInteger = GetTypeTokenHashCode(token);
}
break;
case OpCodeEnum.Stfld:
case OpCodeEnum.Ldfld:
case OpCodeEnum.Ldflda:
{
code.TokenLong = appdomain.GetStaticFieldIndex(token, declaringType, this);
}
break;
case OpCodeEnum.Stsfld:
case OpCodeEnum.Ldsfld:
case OpCodeEnum.Ldsflda:
{
code.TokenLong = appdomain.GetStaticFieldIndex(token, declaringType, this);
}
break;
case OpCodeEnum.Ldstr:
{
long hashCode = appdomain.CacheString(token);
code.TokenLong = hashCode;
}
break;
case OpCodeEnum.Ldtoken:
{
if (token is FieldReference)
{
code.TokenInteger = 0;
code.TokenLong = appdomain.GetStaticFieldIndex(token, declaringType, this);
}
else if (token is TypeReference)
{
code.TokenInteger = 1;
code.TokenLong = GetTypeTokenHashCode(token);
}
else
{
throw new NotImplementedException();
}
}
break;
case OpCodeEnum.Switch:
{
PrepareJumpTable(token, addr);
code.TokenInteger = token.GetHashCode();
}
break;
}
}
private void Prewarm(HashSet <ILMethod> alreadyPrewarmed)
{
if (alreadyPrewarmed != null && alreadyPrewarmed.Add(this) == false)
{
return;
}
if (GenericParameterCount > 0 && !IsGenericInstance)
{
return;
}
//当前方法用到的IType，提前InitializeMethods()。各个子调用，提前InitParameters()
var body = Body;
//当前方法用到的CLR局部变量，提前InitializeFields()、GetTypeFlags()
for (int i = 0; i < LocalVariableCount; i++)
{
var v = Variables[i];
var vt = v.VariableType;
IType t;
if (vt.IsGenericParameter)
{
t = FindGenericArgument(vt.Name);
}
else
{
t = appdomain.GetType(v.VariableType, DeclearingType, this);
}
if (t is CLRType ct)
{
var fields = ct.Fields;
ILRuntime.CLR.Utils.Extensions.GetTypeFlags(ct.TypeForCLR);
}
}
foreach (var ins in body)
{
switch (ins.Code)
{
case OpCodeEnum.Call:
case OpCodeEnum.Newobj:
case OpCodeEnum.Ldftn:
case OpCodeEnum.Ldvirtftn:
case OpCodeEnum.Callvirt:
{
var m = appdomain.GetMethod(ins.TokenInteger);
if (m is ILMethod ilm)
{
//如果参数alreadyPrewarmed不为空，则不仅prewarm当前方法，还会递归prewarm所有子调用
//如果参数alreadyPrewarmed为空，则只prewarm当前方法
if (alreadyPrewarmed != null)
{
ilm.Prewarm(alreadyPrewarmed);
}
}
else if (m is CLRMethod clrm)
{
ILRuntime.CLR.Utils.Extensions.GetTypeFlags(clrm.DeclearingType.TypeForCLR);
}
}
break;
case OpCodeEnum.Ldfld:
case OpCodeEnum.Stfld:
case OpCodeEnum.Ldflda:
case OpCodeEnum.Ldsfld:
case OpCodeEnum.Ldsflda:
case OpCodeEnum.Stsfld:
case OpCodeEnum.Ldtoken:
{
//提前InitializeBaseType()
var t = appdomain.GetType((int)(ins.TokenLong >> 32));
if (t != null)
{
var baseType = t.BaseType;
}
}
break;
}
}
}