private void AddTypeNode(EETypeNode node)
{
if (node != null && !_nodes.Contains(node) && !_visited.Contains(node))
{
_visited.Add(node);
EETypeNode baseTypeNode;
if (node.Type.BaseType != null)
{
_typeToNodeMap.TryGetValue(node.Type.BaseType, out baseTypeNode);
if (!node.Type.IsPrimitive)
AddTypeNode(baseTypeNode);
else if (!_nodes.Contains(baseTypeNode)) _nodes.Add(baseTypeNode);
}
foreach (var field in node.Type.GetFields())
{
EETypeNode fieldNode;
_typeToNodeMap.TryGetValue(field.FieldType, out fieldNode);
if (fieldNode != null)
{
if (fieldNode.Type.IsValueType)
{
if (!fieldNode.Type.IsPrimitive)
AddTypeNode(fieldNode);
else if (!_nodes.Contains(fieldNode)) _nodes.Add(fieldNode);
}
}
}
if (!_nodes.Contains(node)) _nodes.Add(node);
}
}
protected override DependencyList ComputeNonRelocationBasedDependencies(NodeFactory factory)
{
DependencyList dependencyList = new DependencyList();
if (factory.TypeSystemContext.HasEagerStaticConstructor(_type))
{
dependencyList.Add(factory.EagerCctorIndirection(_type.GetStaticConstructor()), "Eager .cctor");
}
dependencyList.Add(factory.GCStaticsRegion, "GCStatics Region");
if (factory.Target.Abi == TargetAbi.CoreRT)
{
dependencyList.Add(GetGCStaticEETypeNode(factory), "GCStatic EEType");
if (_preInitFieldInfos != null)
{
dependencyList.Add(factory.GCStaticsPreInitDataNode(_type), "PreInitData node");
}
}
else
{
dependencyList.Add(((UtcNodeFactory)factory).TypeGCStaticDescSymbol(_type), "GC Desc");
}
dependencyList.Add(factory.GCStaticIndirection(_type), "GC statics indirection");
EETypeNode.AddDependenciesForStaticsNode(factory, _type, ref dependencyList);
return(dependencyList);
}
public ExternEETypeSymbolNode(NodeFactory factory, TypeDesc type)
: base("__EEType_" + factory.NameMangler.GetMangledTypeName(type))
{
_type = type;
EETypeNode.CheckCanGenerateEEType(factory, type);
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
// This node does not trigger generation of other nodes.
if (relocsOnly)
{
return(new ObjectData(Array.Empty <byte>(), Array.Empty <Relocation>(), 1, new ISymbolNode[] { this }));
}
var writer = new NativeWriter();
var typeMapHashTable = new VertexHashtable();
Section hashTableSection = writer.NewSection();
hashTableSection.Place(typeMapHashTable);
foreach (var mappingEntry in factory.MetadataManager.GetTypeDefinitionMapping())
{
if (!factory.CompilationModuleGroup.ContainsType(mappingEntry.Entity))
{
continue;
}
// We are looking for any EEType - constructed or not, it has to be in the mapping
// table so that we can map it to metadata.
EETypeNode node = null;
if (!mappingEntry.Entity.IsGenericDefinition)
{
node = factory.ConstructedTypeSymbol(mappingEntry.Entity) as EETypeNode;
}
if (node == null || !node.Marked)
{
// This might have been a typeof() expression.
node = factory.NecessaryTypeSymbol(mappingEntry.Entity) as EETypeNode;
}
if (node.Marked)
{
Vertex vertex = writer.GetTuple(
writer.GetUnsignedConstant(_externalReferences.GetIndex(node)),
writer.GetUnsignedConstant((uint)mappingEntry.MetadataHandle)
);
int hashCode = node.Type.GetHashCode();
typeMapHashTable.Append((uint)hashCode, hashTableSection.Place(vertex));
}
}
MemoryStream ms = new MemoryStream();
writer.Save(ms);
byte[] hashTableBytes = ms.ToArray();
_endSymbol.SetSymbolOffset(hashTableBytes.Length);
return(new ObjectData(hashTableBytes, Array.Empty <Relocation>(), 1, new ISymbolNode[] { this, _endSymbol }));
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
// This node does not trigger generation of other nodes.
if (relocsOnly)
{
return(new ObjectData(Array.Empty <byte>(), Array.Empty <Relocation>(), 1, new ISymbolNode[] { this }));
}
ObjectDataBuilder builder = new ObjectDataBuilder(factory);
foreach (var mappingEntry in factory.MetadataManager.GetTypeDefinitionMapping())
{
if (!factory.CompilationModuleGroup.ContainsType(mappingEntry.Entity))
{
continue;
}
// We are looking for any EEType - constructed or not, it has to be in the mapping
// table so that we can map it to metadata.
EETypeNode node = null;
if (!mappingEntry.Entity.IsGenericDefinition)
{
node = factory.ConstructedTypeSymbol(mappingEntry.Entity) as EETypeNode;
}
if (node == null || !node.Marked)
{
// This might have been a typeof() expression.
node = factory.NecessaryTypeSymbol(mappingEntry.Entity) as EETypeNode;
}
if (node.Marked)
{
// TODO: this format got very inefficient due to not being able to use RVAs
// replace with a hash table
builder.EmitPointerReloc(node);
builder.EmitInt(mappingEntry.MetadataHandle);
if (factory.Target.PointerSize == 8)
{
builder.EmitInt(0); // Pad
}
}
}
_endSymbol.SetSymbolOffset(builder.CountBytes);
builder.DefinedSymbols.Add(this);
builder.DefinedSymbols.Add(_endSymbol);
return(builder.ToObjectData());
}
protected override DependencyList ComputeNonRelocationBasedDependencies(NodeFactory factory)
{
DependencyList dependencyList = new DependencyList();
if (factory.TypeSystemContext.HasEagerStaticConstructor(_type))
{
dependencyList.Add(factory.EagerCctorIndirection(_type.GetStaticConstructor()), "Eager .cctor");
}
dependencyList.Add(((UtcNodeFactory)factory).TypeThreadStaticGCDescNode(_type), "GC Desc");
EETypeNode.AddDependenciesForStaticsNode(factory, _type, ref dependencyList);
return(dependencyList);
}
protected override DependencyList ComputeNonRelocationBasedDependencies(NodeFactory factory)
{
DependencyList dependencyList = null;
if (factory.PreinitializationManager.HasEagerStaticConstructor(_type))
{
dependencyList = new DependencyList();
dependencyList.Add(factory.EagerCctorIndirection(_type.GetStaticConstructor()), "Eager .cctor");
}
EETypeNode.AddDependenciesForStaticsNode(factory, _type, ref dependencyList);
return(dependencyList);
}
public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
{
Debug.Assert((EETypeNode.GetVTableOffset(factory.Target.PointerSize) % factory.Target.PointerSize) == 0, "vtable offset must be aligned");
ObjectDataBuilder objData = new ObjectDataBuilder(factory, relocsOnly);
objData.AddSymbol(this);
if (!relocsOnly)
{
var tableOffset = EETypeNode.GetVTableOffset(factory.Target.PointerSize) / factory.Target.PointerSize;
objData.EmitInt(tableOffset + VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, _targetMethod, _targetMethod.OwningType));
}
return(objData.ToObjectData());
}
public override IEnumerable <DependencyListEntry> GetStaticDependencies(NodeFactory factory)
{
DependencyList result = new DependencyList();
result.Add(new DependencyListEntry(GetGCStaticEETypeNode(factory), "ThreadStatic EEType"));
if (factory.PreinitializationManager.HasEagerStaticConstructor(_type))
{
result.Add(new DependencyListEntry(factory.EagerCctorIndirection(_type.GetStaticConstructor()), "Eager .cctor"));
}
EETypeNode.AddDependenciesForStaticsNode(factory, _type, ref result);
return(result);
}
protected override DependencyList ComputeNonRelocationBasedDependencies(NodeFactory factory)
{
DependencyList dependencyList = new DependencyList();
if (factory.PreinitializationManager.HasEagerStaticConstructor(_type))
{
dependencyList.Add(factory.EagerCctorIndirection(_type.GetStaticConstructor()), "Eager .cctor");
}
if (_type.Module.GetGlobalModuleType().GetStaticConstructor() is MethodDesc moduleCctor)
{
dependencyList.Add(factory.MethodEntrypoint(moduleCctor), "Static base in a module with initializer");
}
EETypeNode.AddDependenciesForStaticsNode(factory, _type, ref dependencyList);
return(dependencyList);
}
protected override DependencyList ComputeNonRelocationBasedDependencies(NodeFactory factory)
{
DependencyList dependencyList = new DependencyList();
if (factory.PreinitializationManager.HasEagerStaticConstructor(_type))
{
dependencyList.Add(factory.EagerCctorIndirection(_type.GetStaticConstructor()), "Eager .cctor");
}
ModuleUseBasedDependencyAlgorithm.AddDependenciesDueToModuleUse(ref dependencyList, factory, _type.Module);
dependencyList.Add(factory.GCStaticsRegion, "GCStatics Region");
dependencyList.Add(factory.GCStaticIndirection(_type), "GC statics indirection");
EETypeNode.AddDependenciesForStaticsNode(factory, _type, ref dependencyList);
return(dependencyList);
}
public override IEnumerable <DependencyListEntry> GetStaticDependencies(NodeFactory factory)
{
DependencyList result = new DependencyList();
result.Add(new DependencyListEntry(GetGCStaticEETypeNode(factory), "ThreadStatic MethodTable"));
if (factory.PreinitializationManager.HasEagerStaticConstructor(_type))
{
result.Add(new DependencyListEntry(factory.EagerCctorIndirection(_type.GetStaticConstructor()), "Eager .cctor"));
}
if (_type.Module.GetGlobalModuleType().GetStaticConstructor() is MethodDesc moduleCctor)
{
result.Add(factory.MethodEntrypoint(moduleCctor), "Static base in a module with initializer");
}
EETypeNode.AddDependenciesForStaticsNode(factory, _type, ref result);
return(result);
}
public override IEnumerable <CombinedDependencyListEntry> GetConditionalStaticDependencies(NodeFactory factory)
{
// The generic dictionary layout is shared between all the canonically equivalent
// instantiations. We need to track the dependencies of all canonical method bodies
// that use the same dictionary layout.
foreach (var method in _owningType.GetAllMethods())
{
if (!EETypeNode.MethodHasNonGenericILMethodBody(method))
{
continue;
}
// If a canonical method body was compiled, we need to track the dictionary
// dependencies in the context of the concrete type that owns this dictionary.
yield return(new CombinedDependencyListEntry(
factory.ShadowConcreteMethod(method),
factory.MethodEntrypoint(method.GetCanonMethodTarget(CanonicalFormKind.Specific)),
"Generic dictionary dependency"));
}
}
protected override void EmitLoadGenericContext(NodeFactory factory, ref ARMEmitter encoder, bool relocsOnly)
{
// We start with context register pointing to the MethodTable
Register contextRegister = GetContextRegister(ref encoder);
// Locate the VTable slot that points to the dictionary
int vtableSlot = 0;
if (!relocsOnly)
{
// The concrete slot won't be known until we're emitting data - don't ask for it in relocsOnly.
vtableSlot = VirtualMethodSlotHelper.GetGenericDictionarySlot(factory, (TypeDesc)_dictionaryOwner);
}
int pointerSize = factory.Target.PointerSize;
int slotOffset = EETypeNode.GetVTableOffset(pointerSize) + (vtableSlot * pointerSize);
// Load the dictionary pointer from the VTable
encoder.EmitLDR(contextRegister, contextRegister, slotOffset);
}
public TypeFixupSignature TypeSignature(ReadyToRunFixupKind fixupKind, TypeDesc typeDesc, SignatureContext signatureContext)
{
Dictionary <TypeDesc, TypeFixupSignature> perFixupKindMap;
if (!_typeSignatures.TryGetValue(fixupKind, out perFixupKindMap))
{
perFixupKindMap = new Dictionary <TypeDesc, TypeFixupSignature>();
_typeSignatures.Add(fixupKind, perFixupKindMap);
}
TypeFixupSignature signature;
if (!perFixupKindMap.TryGetValue(typeDesc, out signature))
{
EETypeNode.CheckCanGenerateEEType(this, typeDesc);
signature = new TypeFixupSignature(fixupKind, typeDesc, signatureContext);
perFixupKindMap.Add(typeDesc, signature);
}
return(signature);
}
protected override void EmitLoadGenericContext(NodeFactory factory, ref X64Emitter encoder, bool relocsOnly)
{
// We start with Arg0 pointing to the EEType
// Locate the VTable slot that points to the dictionary
int vtableSlot = 0;
if (!relocsOnly)
{
// The concrete slot won't be known until we're emitting data - don't ask for it in relocsOnly.
vtableSlot = VirtualMethodSlotHelper.GetGenericDictionarySlot(factory, (TypeDesc)_dictionaryOwner);
}
int pointerSize = factory.Target.PointerSize;
int slotOffset = EETypeNode.GetVTableOffset(pointerSize) + (vtableSlot * pointerSize);
// Load the dictionary pointer from the VTable
AddrMode loadDictionary = new AddrMode(encoder.TargetRegister.Arg0, null, slotOffset, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Arg0, ref loadDictionary);
}
protected override void EmitCode(NodeFactory factory, ref ARM64Emitter encoder, bool relocsOnly)
{
switch (Id)
{
case ReadyToRunHelperId.VirtualCall:
{
MethodDesc targetMethod = (MethodDesc)Target;
Debug.Assert(!targetMethod.OwningType.IsInterface);
Debug.Assert(!targetMethod.CanMethodBeInSealedVTable());
int pointerSize = factory.Target.PointerSize;
int slot = 0;
if (!relocsOnly)
{
slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, targetMethod, targetMethod.OwningType);
Debug.Assert(slot != -1);
}
encoder.EmitLDR(encoder.TargetRegister.IntraProcedureCallScratch1, encoder.TargetRegister.Arg0, 0);
encoder.EmitLDR(encoder.TargetRegister.IntraProcedureCallScratch1, encoder.TargetRegister.IntraProcedureCallScratch1,
EETypeNode.GetVTableOffset(pointerSize) + (slot * pointerSize));
encoder.EmitJMP(encoder.TargetRegister.IntraProcedureCallScratch1);
}
break;
case ReadyToRunHelperId.GetNonGCStaticBase:
{
MetadataType target = (MetadataType)Target;
bool hasLazyStaticConstructor = factory.PreinitializationManager.HasLazyStaticConstructor(target);
encoder.EmitMOV(encoder.TargetRegister.Result, factory.TypeNonGCStaticsSymbol(target));
if (!hasLazyStaticConstructor)
{
encoder.EmitRET();
}
else
{
// We need to trigger the cctor before returning the base. It is stored at the beginning of the non-GC statics region.
encoder.EmitSUB(encoder.TargetRegister.Arg3, encoder.TargetRegister.Result, NonGCStaticsNode.GetClassConstructorContextSize(factory.Target));
encoder.EmitLDR(encoder.TargetRegister.Arg2, encoder.TargetRegister.Arg3, (short)factory.Target.PointerSize);
encoder.EmitCMP(encoder.TargetRegister.Arg2, 1);
encoder.EmitRETIfEqual();
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Result);
encoder.EmitMOV(encoder.TargetRegister.Arg0, encoder.TargetRegister.Arg3);
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnNonGCStaticBase));
}
}
break;
case ReadyToRunHelperId.GetThreadStaticBase:
{
MetadataType target = (MetadataType)Target;
encoder.EmitMOV(encoder.TargetRegister.Arg2, factory.TypeThreadStaticIndex(target));
// First arg: address of the TypeManager slot that provides the helper with
// information about module index and the type manager instance (which is used
// for initialization on first access).
encoder.EmitLDR(encoder.TargetRegister.Arg0, encoder.TargetRegister.Arg2);
// Second arg: index of the type in the ThreadStatic section of the modules
encoder.EmitLDR(encoder.TargetRegister.Arg1, encoder.TargetRegister.Arg2, factory.Target.PointerSize);
if (!factory.PreinitializationManager.HasLazyStaticConstructor(target))
{
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.GetThreadStaticBaseForType));
}
else
{
encoder.EmitMOV(encoder.TargetRegister.Arg2, factory.TypeNonGCStaticsSymbol(target));
encoder.EmitSUB(encoder.TargetRegister.Arg2, NonGCStaticsNode.GetClassConstructorContextSize(factory.Target));
encoder.EmitLDR(encoder.TargetRegister.Arg3, encoder.TargetRegister.Arg2, (short)factory.Target.PointerSize);
encoder.EmitCMP(encoder.TargetRegister.Arg3, 1);
encoder.EmitJE(factory.HelperEntrypoint(HelperEntrypoint.GetThreadStaticBaseForType));
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnThreadStaticBase));
}
}
break;
case ReadyToRunHelperId.GetGCStaticBase:
{
MetadataType target = (MetadataType)Target;
encoder.EmitMOV(encoder.TargetRegister.Result, factory.TypeGCStaticsSymbol(target));
encoder.EmitLDR(encoder.TargetRegister.Result, encoder.TargetRegister.Result);
if (!factory.PreinitializationManager.HasLazyStaticConstructor(target))
{
encoder.EmitRET();
}
else
{
// We need to trigger the cctor before returning the base. It is stored at the beginning of the non-GC statics region.
encoder.EmitMOV(encoder.TargetRegister.Arg2, factory.TypeNonGCStaticsSymbol(target));
encoder.EmitSUB(encoder.TargetRegister.Arg2, NonGCStaticsNode.GetClassConstructorContextSize(factory.Target));
encoder.EmitLDR(encoder.TargetRegister.Arg3, encoder.TargetRegister.Arg2, (short)factory.Target.PointerSize);
encoder.EmitCMP(encoder.TargetRegister.Arg3, 1);
encoder.EmitRETIfEqual();
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Result);
encoder.EmitMOV(encoder.TargetRegister.Arg0, encoder.TargetRegister.Arg2);
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnGCStaticBase));
}
}
break;
case ReadyToRunHelperId.DelegateCtor:
{
DelegateCreationInfo target = (DelegateCreationInfo)Target;
if (target.TargetNeedsVTableLookup)
{
Debug.Assert(!target.TargetMethod.CanMethodBeInSealedVTable());
encoder.EmitLDR(encoder.TargetRegister.Arg2, encoder.TargetRegister.Arg1);
int slot = 0;
if (!relocsOnly)
{
slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, target.TargetMethod, target.TargetMethod.OwningType);
}
Debug.Assert(slot != -1);
encoder.EmitLDR(encoder.TargetRegister.Arg2, encoder.TargetRegister.Arg2,
EETypeNode.GetVTableOffset(factory.Target.PointerSize) + (slot * factory.Target.PointerSize));
}
else
{
encoder.EmitMOV(encoder.TargetRegister.Arg2, target.GetTargetNode(factory));
}
if (target.Thunk != null)
{
Debug.Assert(target.Constructor.Method.Signature.Length == 3);
encoder.EmitMOV(encoder.TargetRegister.Arg3, target.Thunk);
}
else
{
Debug.Assert(target.Constructor.Method.Signature.Length == 2);
}
encoder.EmitJMP(target.Constructor);
}
break;
case ReadyToRunHelperId.ResolveVirtualFunction:
{
MethodDesc targetMethod = (MethodDesc)Target;
if (targetMethod.OwningType.IsInterface)
{
// Not tested
encoder.EmitINT3();
encoder.EmitMOV(encoder.TargetRegister.Arg1, factory.InterfaceDispatchCell(targetMethod));
encoder.EmitJMP(factory.ExternSymbol("RhpResolveInterfaceMethod"));
}
else
{
if (relocsOnly)
{
break;
}
encoder.EmitLDR(encoder.TargetRegister.Result, encoder.TargetRegister.Arg0);
Debug.Assert(!targetMethod.CanMethodBeInSealedVTable());
int slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, targetMethod, targetMethod.OwningType);
Debug.Assert(slot != -1);
encoder.EmitLDR(encoder.TargetRegister.Result, encoder.TargetRegister.Result,
((short)(EETypeNode.GetVTableOffset(factory.Target.PointerSize) + (slot * factory.Target.PointerSize))));
encoder.EmitRET();
}
}
break;
default:
throw new NotImplementedException();
}
}
public override IEnumerable <CombinedDependencyListEntry> SearchDynamicDependencies(List <DependencyNodeCore <NodeFactory> > markedNodes, int firstNode, NodeFactory factory)
{
Debug.Assert(_method.IsVirtual && _method.HasInstantiation);
List <CombinedDependencyListEntry> dynamicDependencies = new List <CombinedDependencyListEntry>();
for (int i = firstNode; i < markedNodes.Count; i++)
{
DependencyNodeCore <NodeFactory> entry = markedNodes[i];
EETypeNode entryAsEETypeNode = entry as EETypeNode;
if (entryAsEETypeNode == null)
{
continue;
}
TypeDesc potentialOverrideType = entryAsEETypeNode.Type;
if (!(potentialOverrideType is DefType))
{
continue;
}
Debug.Assert(!potentialOverrideType.IsRuntimeDeterminedSubtype);
if (_method.OwningType.HasSameTypeDefinition(potentialOverrideType) && potentialOverrideType.IsInterface && (potentialOverrideType != _method.OwningType))
{
if (_method.OwningType.CanCastTo(potentialOverrideType))
{
// Variance expansion
MethodDesc matchingMethodOnRelatedVariantMethod = potentialOverrideType.GetMethod(_method.Name, _method.GetTypicalMethodDefinition().Signature);
matchingMethodOnRelatedVariantMethod = _method.Context.GetInstantiatedMethod(matchingMethodOnRelatedVariantMethod, _method.Instantiation);
dynamicDependencies.Add(new CombinedDependencyListEntry(factory.GVMDependencies(matchingMethodOnRelatedVariantMethod), null, "GVM Variant Interface dependency"));
}
}
// If this is an interface gvm, look for types that implement the interface
// and other instantantiations that have the same canonical form.
// This ensure the various slot numbers remain equivalent across all types where there is an equivalence
// relationship in the vtable.
if (_method.OwningType.IsInterface)
{
if (potentialOverrideType.IsInterface)
{
continue;
}
foreach (DefType interfaceImpl in potentialOverrideType.RuntimeInterfaces)
{
if (interfaceImpl.ConvertToCanonForm(CanonicalFormKind.Specific) == _method.OwningType.ConvertToCanonForm(CanonicalFormKind.Specific))
{
// Find if the type implements this method. (Note, do this comparision against the generic definition of the method, not the
// specific method instantiation that is "method"
MethodDesc genericDefinition = interfaceImpl.GetMethod(_method.Name, _method.GetTypicalMethodDefinition().Signature);
MethodDesc slotDecl = potentialOverrideType.ResolveInterfaceMethodTarget(genericDefinition);
if (slotDecl != null)
{
CreateDependencyForMethodSlotAndInstantiation(slotDecl, dynamicDependencies, factory);
}
}
}
}
else
{
// TODO: Ensure GVM Canon Target
TypeDesc overrideTypeCanonCur = potentialOverrideType;
TypeDesc methodCanonContainingType = _method.OwningType;
while (overrideTypeCanonCur != null)
{
if (overrideTypeCanonCur.ConvertToCanonForm(CanonicalFormKind.Specific) == methodCanonContainingType.ConvertToCanonForm(CanonicalFormKind.Specific))
{
MethodDesc methodDefInDerivedType = potentialOverrideType.GetMethod(_method.Name, _method.GetTypicalMethodDefinition().Signature);
if (methodDefInDerivedType != null)
{
CreateDependencyForMethodSlotAndInstantiation(methodDefInDerivedType, dynamicDependencies, factory);
}
MethodDesc slotDecl = MetadataVirtualMethodAlgorithm.FindSlotDefiningMethodForVirtualMethod(_method);
if (slotDecl != null)
{
CreateDependencyForMethodSlotAndInstantiation(slotDecl.GetMethodDefinition(), dynamicDependencies, factory);
}
}
overrideTypeCanonCur = overrideTypeCanonCur.BaseType;
}
}
}
return(dynamicDependencies);
}
public override IEnumerable <CombinedDependencyListEntry> SearchDynamicDependencies(List <DependencyNodeCore <NodeFactory> > markedNodes, int firstNode, NodeFactory factory)
{
List <CombinedDependencyListEntry> dynamicDependencies = new List <CombinedDependencyListEntry>();
TypeDesc methodOwningType = _method.OwningType;
bool methodIsShared = _method.IsSharedByGenericInstantiations;
TypeSystemContext context = _method.Context;
for (int i = firstNode; i < markedNodes.Count; i++)
{
DependencyNodeCore <NodeFactory> entry = markedNodes[i];
EETypeNode entryAsEETypeNode = entry as EETypeNode;
if (entryAsEETypeNode == null)
{
continue;
}
TypeDesc potentialOverrideType = entryAsEETypeNode.Type;
if (!potentialOverrideType.IsDefType || potentialOverrideType.IsInterface)
{
continue;
}
// If method is canonical, don't allow using it with non-canonical types - we can wait until
// we see the __Canon instantiation. If there isn't one, the canonical method wouldn't be useful anyway.
if (methodIsShared &&
potentialOverrideType.ConvertToCanonForm(CanonicalFormKind.Specific) != potentialOverrideType)
{
continue;
}
// Similarly, if the type is canonical but this method instantiation isn't, don't mix them.
if (!methodIsShared &&
potentialOverrideType.IsCanonicalSubtype(CanonicalFormKind.Any))
{
continue;
}
// If this is an interface gvm, look for types that implement the interface
// and other instantantiations that have the same canonical form.
// This ensure the various slot numbers remain equivalent across all types where there is an equivalence
// relationship in the vtable.
if (methodOwningType.IsInterface)
{
// We go over definitions because a single canonical interface method could actually be implemented
// by multiple methods - consider:
//
// class Foo<T, U> : IFoo<T>, IFoo<U>, IFoo<string> { }
//
// If we ask what implements IFoo<__Canon>.Method, the answer could be "three methods"
// and that's expected. We therefore resolve IFoo<__Canon>.Method for each IFoo<!0>.Method,
// IFoo<!1>.Method, and IFoo<string>.Method, adding GVMDependencies for each.
TypeDesc potentialOverrideDefinition = potentialOverrideType.GetTypeDefinition();
DefType[] potentialInterfaces = potentialOverrideType.RuntimeInterfaces;
DefType[] potentialDefinitionInterfaces = potentialOverrideDefinition.RuntimeInterfaces;
for (int interfaceIndex = 0; interfaceIndex < potentialInterfaces.Length; interfaceIndex++)
{
if (potentialInterfaces[interfaceIndex].ConvertToCanonForm(CanonicalFormKind.Specific) == methodOwningType)
{
MethodDesc interfaceMethod = _method.GetMethodDefinition();
if (methodOwningType.HasInstantiation)
{
interfaceMethod = context.GetMethodForInstantiatedType(
_method.GetTypicalMethodDefinition(), (InstantiatedType)potentialDefinitionInterfaces[interfaceIndex]);
}
MethodDesc slotDecl = potentialOverrideDefinition.InstantiateAsOpen().ResolveInterfaceMethodTarget(interfaceMethod);
if (slotDecl == null)
{
// The method might be implemented through a default interface method
var result = potentialOverrideDefinition.InstantiateAsOpen().ResolveInterfaceMethodToDefaultImplementationOnType(interfaceMethod, out slotDecl);
if (result != DefaultInterfaceMethodResolution.DefaultImplementation)
{
slotDecl = null;
}
}
if (slotDecl != null)
{
TypeDesc[] openInstantiation = new TypeDesc[_method.Instantiation.Length];
for (int instArg = 0; instArg < openInstantiation.Length; instArg++)
{
openInstantiation[instArg] = context.GetSignatureVariable(instArg, method: true);
}
MethodDesc implementingMethodInstantiation = slotDecl.MakeInstantiatedMethod(openInstantiation).InstantiateSignature(potentialOverrideType.Instantiation, _method.Instantiation);
dynamicDependencies.Add(new CombinedDependencyListEntry(factory.GVMDependencies(implementingMethodInstantiation.GetCanonMethodTarget(CanonicalFormKind.Specific)), null, "ImplementingMethodInstantiation"));
}
}
}
}
else
{
// This is not an interface GVM. Check whether the current type overrides the virtual method.
// We might need to change what virtual method we ask about - consider:
//
// class Base<T> { virtual Method(); }
// class Derived : Base<string> { override Method(); }
//
// We need to resolve Base<__Canon>.Method on Derived, but if we were to ask the virtual
// method resolution algorithm, the answer would be "does not override" because Base<__Canon>
// is not even in the inheritance hierarchy.
//
// So we need to modify the question to resolve Base<string>.Method instead and then
// canonicalize the result.
TypeDesc overrideTypeCur = potentialOverrideType;
do
{
if (overrideTypeCur.ConvertToCanonForm(CanonicalFormKind.Specific) == methodOwningType)
{
break;
}
overrideTypeCur = overrideTypeCur.BaseType;
}while (overrideTypeCur != null);
if (overrideTypeCur == null)
{
continue;
}
MethodDesc methodToResolve;
if (methodOwningType == overrideTypeCur)
{
methodToResolve = _method;
}
else
{
methodToResolve = context
.GetMethodForInstantiatedType(_method.GetTypicalMethodDefinition(), (InstantiatedType)overrideTypeCur)
.MakeInstantiatedMethod(_method.Instantiation);
}
MethodDesc instantiatedTargetMethod = potentialOverrideType.FindVirtualFunctionTargetMethodOnObjectType(methodToResolve)
.GetCanonMethodTarget(CanonicalFormKind.Specific);
if (instantiatedTargetMethod != _method)
{
dynamicDependencies.Add(new CombinedDependencyListEntry(
factory.GVMDependencies(instantiatedTargetMethod), null, "DerivedMethodInstantiation"));
}
}
}
return(dynamicDependencies);
}
public EETypeOptionalFieldsNode(EETypeNode owner)
{
_owner = owner;
}
protected override void EmitCode(NodeFactory factory, ref X64Emitter encoder, bool relocsOnly)
{
switch (Id)
{
case ReadyToRunHelperId.NewHelper:
{
TypeDesc target = (TypeDesc)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.ConstructedTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetNewObjectHelperForType(target)));
}
break;
case ReadyToRunHelperId.VirtualCall:
if (relocsOnly)
{
break;
}
AddrMode loadFromThisPtr = new AddrMode(encoder.TargetRegister.Arg0, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromThisPtr);
{
int slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, (MethodDesc)Target);
Debug.Assert(slot != -1);
AddrMode jmpAddrMode = new AddrMode(encoder.TargetRegister.Result, null, EETypeNode.GetVTableOffset(factory.Target.PointerSize) + (slot * factory.Target.PointerSize), 0, AddrModeSize.Int64);
encoder.EmitJmpToAddrMode(ref jmpAddrMode);
}
break;
case ReadyToRunHelperId.IsInstanceOf:
{
TypeDesc target = (TypeDesc)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.NecessaryTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetCastingHelperNameForType(target, false)));
}
break;
case ReadyToRunHelperId.CastClass:
{
TypeDesc target = (TypeDesc)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.NecessaryTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetCastingHelperNameForType(target, true)));
}
break;
case ReadyToRunHelperId.NewArr1:
{
TypeDesc target = (TypeDesc)Target;
// TODO: Swap argument order instead
// mov arg1, arg0
encoder.Builder.EmitByte(0x48);
encoder.Builder.EmitShort((short)((encoder.TargetRegister.Arg0 == Register.RCX) ? 0xD18B : 0xF78B));
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.NecessaryTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetNewArrayHelperForType(target)));
}
break;
case ReadyToRunHelperId.GetNonGCStaticBase:
{
MetadataType target = (MetadataType)Target;
if (!target.HasStaticConstructor)
{
Debug.Assert(Id == ReadyToRunHelperId.GetNonGCStaticBase);
encoder.EmitLEAQ(encoder.TargetRegister.Result, factory.TypeNonGCStaticsSymbol(target));
encoder.EmitRET();
}
else
{
// We need to trigger the cctor before returning the base
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.TypeCctorContextSymbol(target));
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.TypeNonGCStaticsSymbol(target));
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnNonGCStaticBase));
}
}
break;
case ReadyToRunHelperId.GetThreadStaticBase:
encoder.EmitINT3();
break;
case ReadyToRunHelperId.GetGCStaticBase:
{
MetadataType target = (MetadataType)Target;
if (!target.HasStaticConstructor)
{
encoder.EmitLEAQ(encoder.TargetRegister.Result, factory.TypeGCStaticsSymbol(target));
AddrMode loadFromRax = new AddrMode(encoder.TargetRegister.Result, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromRax);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromRax);
encoder.EmitRET();
}
else
{
// We need to trigger the cctor before returning the base
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.TypeCctorContextSymbol(target));
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.TypeGCStaticsSymbol(target));
AddrMode loadFromRdx = new AddrMode(encoder.TargetRegister.Arg1, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Arg1, ref loadFromRdx);
encoder.EmitMOV(encoder.TargetRegister.Arg1, ref loadFromRdx);
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnGCStaticBase));
}
}
break;
case ReadyToRunHelperId.DelegateCtor:
{
DelegateInfo target = (DelegateInfo)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg2, factory.MethodEntrypoint(target.Target));
if (target.ShuffleThunk != null)
{
encoder.EmitLEAQ(encoder.TargetRegister.Arg3, factory.MethodEntrypoint(target.ShuffleThunk));
}
encoder.EmitJMP(factory.MethodEntrypoint(target.Ctor));
}
break;
case ReadyToRunHelperId.InterfaceDispatch:
{
encoder.EmitLEAQ(Register.R10, factory.InterfaceDispatchCell((MethodDesc)Target));
AddrMode jmpAddrMode = new AddrMode(Register.R10, null, 0, 0, AddrModeSize.Int64);
encoder.EmitJmpToAddrMode(ref jmpAddrMode);
}
break;
default:
throw new NotImplementedException();
}
}
protected override void EmitCode(NodeFactory factory, ref X64Emitter encoder, bool relocsOnly)
{
switch (Id)
{
case ReadyToRunHelperId.NewHelper:
{
TypeDesc target = (TypeDesc)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.ConstructedTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetNewObjectHelperForType(target)));
}
break;
case ReadyToRunHelperId.VirtualCall:
{
MethodDesc targetMethod = (MethodDesc)Target;
if (targetMethod.OwningType.IsInterface)
{
encoder.EmitLEAQ(Register.R10, factory.InterfaceDispatchCell((MethodDesc)Target));
AddrMode jmpAddrMode = new AddrMode(Register.R10, null, 0, 0, AddrModeSize.Int64);
encoder.EmitJmpToAddrMode(ref jmpAddrMode);
}
else
{
if (relocsOnly)
{
break;
}
AddrMode loadFromThisPtr = new AddrMode(encoder.TargetRegister.Arg0, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromThisPtr);
int pointerSize = factory.Target.PointerSize;
int slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, targetMethod);
Debug.Assert(slot != -1);
AddrMode jmpAddrMode = new AddrMode(encoder.TargetRegister.Result, null, EETypeNode.GetVTableOffset(pointerSize) + (slot * pointerSize), 0, AddrModeSize.Int64);
encoder.EmitJmpToAddrMode(ref jmpAddrMode);
}
}
break;
case ReadyToRunHelperId.IsInstanceOf:
{
TypeDesc target = (TypeDesc)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.NecessaryTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetCastingHelperNameForType(target, false)));
}
break;
case ReadyToRunHelperId.CastClass:
{
TypeDesc target = (TypeDesc)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.NecessaryTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetCastingHelperNameForType(target, true)));
}
break;
case ReadyToRunHelperId.NewArr1:
{
TypeDesc target = (TypeDesc)Target;
// TODO: Swap argument order instead
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Arg0);
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.ConstructedTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetNewArrayHelperForType(target)));
}
break;
case ReadyToRunHelperId.GetNonGCStaticBase:
{
MetadataType target = (MetadataType)Target;
bool hasLazyStaticConstructor = factory.TypeSystemContext.HasLazyStaticConstructor(target);
encoder.EmitLEAQ(encoder.TargetRegister.Result, factory.TypeNonGCStaticsSymbol(target), hasLazyStaticConstructor ? NonGCStaticsNode.GetClassConstructorContextStorageSize(factory.Target, target) : 0);
if (!hasLazyStaticConstructor)
{
encoder.EmitRET();
}
else
{
// We need to trigger the cctor before returning the base. It is stored at the beginning of the non-GC statics region.
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.TypeNonGCStaticsSymbol(target));
AddrMode initialized = new AddrMode(encoder.TargetRegister.Arg0, null, factory.Target.PointerSize, 0, AddrModeSize.Int32);
encoder.EmitCMP(ref initialized, 1);
encoder.EmitRETIfEqual();
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Result);
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnNonGCStaticBase));
}
}
break;
case ReadyToRunHelperId.GetThreadStaticBase:
encoder.EmitINT3();
break;
case ReadyToRunHelperId.GetGCStaticBase:
{
MetadataType target = (MetadataType)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Result, factory.TypeGCStaticsSymbol(target));
AddrMode loadFromRax = new AddrMode(encoder.TargetRegister.Result, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromRax);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromRax);
if (!factory.TypeSystemContext.HasLazyStaticConstructor(target))
{
encoder.EmitRET();
}
else
{
// We need to trigger the cctor before returning the base. It is stored at the beginning of the non-GC statics region.
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.TypeNonGCStaticsSymbol(target));
AddrMode initialized = new AddrMode(encoder.TargetRegister.Arg0, null, factory.Target.PointerSize, 0, AddrModeSize.Int32);
encoder.EmitCMP(ref initialized, 1);
encoder.EmitRETIfEqual();
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Result);
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnGCStaticBase));
}
}
break;
case ReadyToRunHelperId.DelegateCtor:
{
DelegateCreationInfo target = (DelegateCreationInfo)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg2, target.Target);
if (target.Thunk != null)
{
Debug.Assert(target.Constructor.Method.Signature.Length == 3);
encoder.EmitLEAQ(encoder.TargetRegister.Arg3, target.Thunk);
}
else
{
Debug.Assert(target.Constructor.Method.Signature.Length == 2);
}
encoder.EmitJMP(target.Constructor);
}
break;
case ReadyToRunHelperId.ResolveVirtualFunction:
{
MethodDesc targetMethod = (MethodDesc)Target;
if (targetMethod.OwningType.IsInterface)
{
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.InterfaceDispatchCell(targetMethod));
encoder.EmitJMP(factory.ExternSymbol("RhpResolveInterfaceMethod"));
}
else
{
if (relocsOnly)
{
break;
}
AddrMode loadFromThisPtr = new AddrMode(encoder.TargetRegister.Arg0, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromThisPtr);
int slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, targetMethod);
Debug.Assert(slot != -1);
AddrMode loadFromSlot = new AddrMode(encoder.TargetRegister.Result, null, EETypeNode.GetVTableOffset(factory.Target.PointerSize) + (slot * factory.Target.PointerSize), 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromSlot);
encoder.EmitRET();
}
}
break;
case ReadyToRunHelperId.GenericLookupFromThis:
{
int pointerSize = factory.Target.PointerSize;
var lookupInfo = (GenericLookupDescriptor)Target;
// Arg0 points to the EEType
// Locate the VTable slot that points to the dictionary
int vtableSlot = 0;
if (!relocsOnly)
{
vtableSlot = VirtualMethodSlotHelper.GetGenericDictionarySlot(factory, (TypeDesc)lookupInfo.CanonicalOwner);
}
int slotOffset = EETypeNode.GetVTableOffset(pointerSize) + (vtableSlot * pointerSize);
// Load the dictionary pointer from the VTable
AddrMode loadDictionary = new AddrMode(encoder.TargetRegister.Arg0, null, slotOffset, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Arg0, ref loadDictionary);
// What's left now is the actual dictionary lookup
goto case ReadyToRunHelperId.GenericLookupFromDictionary;
}
case ReadyToRunHelperId.GenericLookupFromDictionary:
{
var lookupInfo = (GenericLookupDescriptor)Target;
// Find the generic dictionary slot
int dictionarySlot = 0;
if (!relocsOnly)
{
// The concrete slot won't be known until we're emitting data.
dictionarySlot = factory.GenericDictionaryLayout(lookupInfo.CanonicalOwner).GetSlotForEntry(lookupInfo.Signature);
}
// Load the generic dictionary cell
AddrMode loadEntry = new AddrMode(
encoder.TargetRegister.Arg0, null, dictionarySlot * factory.Target.PointerSize, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadEntry);
encoder.EmitRET();
}
break;
default:
throw new NotImplementedException();
}
}
protected override void EmitCode(NodeFactory factory, ref ARMEmitter encoder, bool relocsOnly)
{
switch (Id)
{
case ReadyToRunHelperId.NewHelper:
{
TypeDesc target = (TypeDesc)Target;
encoder.EmitMOV(encoder.TargetRegister.Arg0, factory.ConstructedTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetNewObjectHelperForType(target)));
}
break;
case ReadyToRunHelperId.VirtualCall:
{
MethodDesc targetMethod = (MethodDesc)Target;
Debug.Assert(!targetMethod.OwningType.IsInterface);
int pointerSize = factory.Target.PointerSize;
int slot = 0;
if (!relocsOnly)
{
slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, targetMethod);
Debug.Assert(slot != -1);
}
encoder.EmitLDR(encoder.TargetRegister.InterproceduralScratch, encoder.TargetRegister.Arg0, 0);
encoder.EmitLDR(encoder.TargetRegister.InterproceduralScratch, encoder.TargetRegister.InterproceduralScratch,
(short)(EETypeNode.GetVTableOffset(pointerSize) + (slot * pointerSize)));
encoder.EmitJMP(encoder.TargetRegister.InterproceduralScratch);
}
break;
case ReadyToRunHelperId.IsInstanceOf:
{
TypeDesc target = (TypeDesc)Target;
encoder.EmitMOV(encoder.TargetRegister.Arg1, factory.NecessaryTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetCastingHelperNameForType(target, false)));
}
break;
case ReadyToRunHelperId.CastClass:
{
TypeDesc target = (TypeDesc)Target;
encoder.EmitMOV(encoder.TargetRegister.Arg1, factory.NecessaryTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetCastingHelperNameForType(target, true)));
}
break;
case ReadyToRunHelperId.NewArr1:
{
TypeDesc target = (TypeDesc)Target;
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Arg0);
encoder.EmitMOV(encoder.TargetRegister.Arg0, factory.ConstructedTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetNewArrayHelperForType(target)));
}
break;
case ReadyToRunHelperId.GetNonGCStaticBase:
{
MetadataType target = (MetadataType)Target;
bool hasLazyStaticConstructor = factory.TypeSystemContext.HasLazyStaticConstructor(target);
encoder.EmitMOV(encoder.TargetRegister.Result, factory.TypeNonGCStaticsSymbol(target));
if (!hasLazyStaticConstructor)
{
encoder.EmitRET();
}
else
{
// We need to trigger the cctor before returning the base. It is stored at the beginning of the non-GC statics region.
encoder.EmitMOV(encoder.TargetRegister.Arg2, factory.TypeNonGCStaticsSymbol(target));
encoder.EmitSUB(encoder.TargetRegister.Arg2, ((byte)NonGCStaticsNode.GetClassConstructorContextStorageSize(factory.Target, target)));
// cmp [r2 + ptrSize], 1
encoder.EmitLDR(encoder.TargetRegister.Arg3, encoder.TargetRegister.Arg2, ((short)factory.Target.PointerSize));
encoder.EmitCMP(encoder.TargetRegister.Arg3, ((byte)1));
// return if cmp
encoder.EmitRETIfEqual();
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Result);
encoder.EmitMOV(encoder.TargetRegister.Arg0 /*Result*/, encoder.TargetRegister.Arg2);
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnNonGCStaticBase));
}
}
break;
case ReadyToRunHelperId.GetThreadStaticBase:
{
MetadataType target = (MetadataType)Target;
encoder.EmitMOV(encoder.TargetRegister.Arg2, factory.TypeThreadStaticIndex(target));
// First arg: address of the TypeManager slot that provides the helper with
// information about module index and the type manager instance (which is used
// for initialization on first access).
encoder.EmitLDR(encoder.TargetRegister.Arg0, encoder.TargetRegister.Arg2);
// Second arg: index of the type in the ThreadStatic section of the modules
encoder.EmitLDR(encoder.TargetRegister.Arg1, encoder.TargetRegister.Arg2, ((short)factory.Target.PointerSize));
if (!factory.TypeSystemContext.HasLazyStaticConstructor(target))
{
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.GetThreadStaticBaseForType));
}
else
{
encoder.EmitMOV(encoder.TargetRegister.Arg2, factory.TypeNonGCStaticsSymbol(target));
encoder.EmitSUB(encoder.TargetRegister.Arg2, (byte)(NonGCStaticsNode.GetClassConstructorContextStorageSize(factory.Target, target)));
// TODO: performance optimization - inline the check verifying whether we need to trigger the cctor
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnThreadStaticBase));
}
}
break;
case ReadyToRunHelperId.GetGCStaticBase:
{
MetadataType target = (MetadataType)Target;
encoder.EmitMOV(encoder.TargetRegister.Result, factory.TypeGCStaticsSymbol(target));
encoder.EmitLDR(encoder.TargetRegister.Result, encoder.TargetRegister.Result);
encoder.EmitLDR(encoder.TargetRegister.Result, encoder.TargetRegister.Result);
if (!factory.TypeSystemContext.HasLazyStaticConstructor(target))
{
encoder.EmitRET();
}
else
{
// We need to trigger the cctor before returning the base. It is stored at the beginning of the non-GC statics region.
encoder.EmitMOV(encoder.TargetRegister.Arg2, factory.TypeNonGCStaticsSymbol(target));
// Get cctor pointer: offset is usually equal to the double size of the pointer, therefore we can use arm sub imm
encoder.EmitSUB(encoder.TargetRegister.Arg2, (byte)(NonGCStaticsNode.GetClassConstructorContextStorageSize(factory.Target, target)));
// cmp [r2 + ptrSize], 1
encoder.EmitLDR(encoder.TargetRegister.Arg3, encoder.TargetRegister.Arg2, ((short)factory.Target.PointerSize));
encoder.EmitCMP(encoder.TargetRegister.Arg3, (byte)1);
// return if cmp
encoder.EmitRETIfEqual();
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Result);
encoder.EmitMOV(encoder.TargetRegister.Arg0 /*Result*/, encoder.TargetRegister.Arg2);
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnGCStaticBase));
}
}
break;
case ReadyToRunHelperId.DelegateCtor:
{
DelegateCreationInfo target = (DelegateCreationInfo)Target;
if (target.TargetNeedsVTableLookup)
{
encoder.EmitLDR(encoder.TargetRegister.Arg2, encoder.TargetRegister.Arg1);
int slot = 0;
if (!relocsOnly)
{
slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, target.TargetMethod);
}
Debug.Assert(slot != -1);
encoder.EmitLDR(encoder.TargetRegister.Arg2, encoder.TargetRegister.Arg2,
((short)(EETypeNode.GetVTableOffset(factory.Target.PointerSize) + (slot * factory.Target.PointerSize))));
}
else
{
ISymbolNode targetMethodNode = target.GetTargetNode(factory);
encoder.EmitMOV(encoder.TargetRegister.Arg2, target.GetTargetNode(factory));
}
if (target.Thunk != null)
{
Debug.Assert(target.Constructor.Method.Signature.Length == 3);
encoder.EmitMOV(encoder.TargetRegister.Arg3, target.Thunk);
}
else
{
Debug.Assert(target.Constructor.Method.Signature.Length == 2);
}
encoder.EmitJMP(target.Constructor);
}
break;
case ReadyToRunHelperId.ResolveVirtualFunction:
{
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.ResolveVirtualFunction);
/*
***
***NOT TESTED!!!
***
***MethodDesc targetMethod = (MethodDesc)Target;
***if (targetMethod.OwningType.IsInterface)
***{
***encoder.EmitMOV(encoder.TargetRegister.Arg1, factory.InterfaceDispatchCell(targetMethod));
***encoder.EmitJMP(factory.ExternSymbol("RhpResolveInterfaceMethod"));
***}
***else
***{
***if (relocsOnly)
*** break;
***
***encoder.EmitLDR(encoder.TargetRegister.Result, encoder.TargetRegister.Arg0);
***
***int slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, targetMethod);
***Debug.Assert(slot != -1);
***encoder.EmitLDR(encoder.TargetRegister.Result, encoder.TargetRegister.Result,
*** ((short)(EETypeNode.GetVTableOffset(factory.Target.PointerSize) + (slot * factory.Target.PointerSize))));
***encoder.EmitRET();
***}
*/
}
break;
default:
throw new NotImplementedException();
}
}
protected override void EmitCode(NodeFactory factory, ref X64Emitter encoder, bool relocsOnly)
{
switch (Id)
{
case ReadyToRunHelperId.NewHelper:
{
TypeDesc target = (TypeDesc)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.ConstructedTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetNewObjectHelperForType(target)));
}
break;
case ReadyToRunHelperId.VirtualCall:
{
MethodDesc targetMethod = (MethodDesc)Target;
if (targetMethod.OwningType.IsInterface)
{
encoder.EmitLEAQ(Register.R10, factory.InterfaceDispatchCell((MethodDesc)Target));
AddrMode jmpAddrMode = new AddrMode(Register.R10, null, 0, 0, AddrModeSize.Int64);
encoder.EmitJmpToAddrMode(ref jmpAddrMode);
}
else
{
if (relocsOnly)
{
break;
}
AddrMode loadFromThisPtr = new AddrMode(encoder.TargetRegister.Arg0, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromThisPtr);
int pointerSize = factory.Target.PointerSize;
int slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, targetMethod);
Debug.Assert(slot != -1);
AddrMode jmpAddrMode = new AddrMode(encoder.TargetRegister.Result, null, EETypeNode.GetVTableOffset(pointerSize) + (slot * pointerSize), 0, AddrModeSize.Int64);
encoder.EmitJmpToAddrMode(ref jmpAddrMode);
}
}
break;
case ReadyToRunHelperId.IsInstanceOf:
{
TypeDesc target = (TypeDesc)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.NecessaryTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetCastingHelperNameForType(target, false)));
}
break;
case ReadyToRunHelperId.CastClass:
{
TypeDesc target = (TypeDesc)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.NecessaryTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetCastingHelperNameForType(target, true)));
}
break;
case ReadyToRunHelperId.NewArr1:
{
TypeDesc target = (TypeDesc)Target;
// TODO: Swap argument order instead
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Arg0);
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.ConstructedTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetNewArrayHelperForType(target)));
}
break;
case ReadyToRunHelperId.GetNonGCStaticBase:
{
MetadataType target = (MetadataType)Target;
bool hasLazyStaticConstructor = factory.TypeSystemContext.HasLazyStaticConstructor(target);
encoder.EmitLEAQ(encoder.TargetRegister.Result, factory.TypeNonGCStaticsSymbol(target), hasLazyStaticConstructor ? NonGCStaticsNode.GetClassConstructorContextStorageSize(factory.Target, target) : 0);
if (!hasLazyStaticConstructor)
{
encoder.EmitRET();
}
else
{
// We need to trigger the cctor before returning the base. It is stored at the beginning of the non-GC statics region.
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.TypeNonGCStaticsSymbol(target));
AddrMode initialized = new AddrMode(encoder.TargetRegister.Arg0, null, factory.Target.PointerSize, 0, AddrModeSize.Int32);
encoder.EmitCMP(ref initialized, 1);
encoder.EmitRETIfEqual();
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Result);
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnNonGCStaticBase));
}
}
break;
case ReadyToRunHelperId.GetThreadStaticBase:
encoder.EmitINT3();
break;
case ReadyToRunHelperId.GetGCStaticBase:
{
MetadataType target = (MetadataType)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Result, factory.TypeGCStaticsSymbol(target));
AddrMode loadFromRax = new AddrMode(encoder.TargetRegister.Result, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromRax);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromRax);
if (!factory.TypeSystemContext.HasLazyStaticConstructor(target))
{
encoder.EmitRET();
}
else
{
// We need to trigger the cctor before returning the base. It is stored at the beginning of the non-GC statics region.
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.TypeNonGCStaticsSymbol(target));
AddrMode initialized = new AddrMode(encoder.TargetRegister.Arg0, null, factory.Target.PointerSize, 0, AddrModeSize.Int32);
encoder.EmitCMP(ref initialized, 1);
encoder.EmitRETIfEqual();
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Result);
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnGCStaticBase));
}
}
break;
case ReadyToRunHelperId.DelegateCtor:
{
DelegateCreationInfo target = (DelegateCreationInfo)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg2, target.Target);
if (target.Thunk != null)
{
Debug.Assert(target.Constructor.Method.Signature.Length == 3);
encoder.EmitLEAQ(encoder.TargetRegister.Arg3, target.Thunk);
}
else
{
Debug.Assert(target.Constructor.Method.Signature.Length == 2);
}
encoder.EmitJMP(target.Constructor);
}
break;
case ReadyToRunHelperId.ResolveVirtualFunction:
{
MethodDesc targetMethod = (MethodDesc)Target;
if (targetMethod.OwningType.IsInterface)
{
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.InterfaceDispatchCell(targetMethod));
encoder.EmitJMP(factory.ExternSymbol("RhpResolveInterfaceMethod"));
}
else
{
if (relocsOnly)
{
break;
}
AddrMode loadFromThisPtr = new AddrMode(encoder.TargetRegister.Arg0, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromThisPtr);
int slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, targetMethod);
Debug.Assert(slot != -1);
AddrMode loadFromSlot = new AddrMode(encoder.TargetRegister.Result, null, EETypeNode.GetVTableOffset(factory.Target.PointerSize) + (slot * factory.Target.PointerSize), 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromSlot);
encoder.EmitRET();
}
}
break;
case ReadyToRunHelperId.ResolveGenericVirtualMethod:
encoder.EmitINT3();
break;
default:
throw new NotImplementedException();
}
}
protected override void EmitCode(NodeFactory factory, ref X64Emitter encoder, bool relocsOnly)
{
switch (Id)
{
case ReadyToRunHelperId.NewHelper:
{
TypeDesc target = (TypeDesc)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.ConstructedTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetNewObjectHelperForType(target)));
}
break;
case ReadyToRunHelperId.VirtualCall:
{
MethodDesc targetMethod = (MethodDesc)Target;
if (targetMethod.OwningType.IsInterface)
{
encoder.EmitLEAQ(Register.R10, factory.InterfaceDispatchCell((MethodDesc)Target));
AddrMode jmpAddrMode = new AddrMode(Register.R10, null, 0, 0, AddrModeSize.Int64);
encoder.EmitJmpToAddrMode(ref jmpAddrMode);
}
else
{
if (relocsOnly)
{
break;
}
AddrMode loadFromThisPtr = new AddrMode(encoder.TargetRegister.Arg0, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromThisPtr);
int pointerSize = factory.Target.PointerSize;
int slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, targetMethod);
Debug.Assert(slot != -1);
AddrMode jmpAddrMode = new AddrMode(encoder.TargetRegister.Result, null, EETypeNode.GetVTableOffset(pointerSize) + (slot * pointerSize), 0, AddrModeSize.Int64);
encoder.EmitJmpToAddrMode(ref jmpAddrMode);
}
}
break;
case ReadyToRunHelperId.IsInstanceOf:
{
TypeDesc target = (TypeDesc)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.NecessaryTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetCastingHelperNameForType(target, false)));
}
break;
case ReadyToRunHelperId.CastClass:
{
TypeDesc target = (TypeDesc)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.NecessaryTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetCastingHelperNameForType(target, true)));
}
break;
case ReadyToRunHelperId.NewArr1:
{
TypeDesc target = (TypeDesc)Target;
// TODO: Swap argument order instead
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Arg0);
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.ConstructedTypeSymbol(target));
encoder.EmitJMP(factory.ExternSymbol(JitHelper.GetNewArrayHelperForType(target)));
}
break;
case ReadyToRunHelperId.GetNonGCStaticBase:
{
MetadataType target = (MetadataType)Target;
bool hasLazyStaticConstructor = factory.TypeSystemContext.HasLazyStaticConstructor(target);
encoder.EmitLEAQ(encoder.TargetRegister.Result, factory.TypeNonGCStaticsSymbol(target), hasLazyStaticConstructor ? NonGCStaticsNode.GetClassConstructorContextStorageSize(factory.Target, target) : 0);
if (!hasLazyStaticConstructor)
{
encoder.EmitRET();
}
else
{
// We need to trigger the cctor before returning the base. It is stored at the beginning of the non-GC statics region.
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.TypeNonGCStaticsSymbol(target));
AddrMode initialized = new AddrMode(encoder.TargetRegister.Arg0, null, factory.Target.PointerSize, 0, AddrModeSize.Int32);
encoder.EmitCMP(ref initialized, 1);
encoder.EmitRETIfEqual();
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Result);
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnNonGCStaticBase));
}
}
break;
case ReadyToRunHelperId.GetThreadStaticBase:
{
MetadataType target = (MetadataType)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg2, factory.TypeThreadStaticIndex(target));
// First arg: address of the TypeManager slot that provides the helper with
// information about module index and the type manager instance (which is used
// for initialization on first access).
AddrMode loadFromArg2 = new AddrMode(encoder.TargetRegister.Arg2, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Arg0, ref loadFromArg2);
// Second arg: index of the type in the ThreadStatic section of the modules
AddrMode loadFromArg2AndDelta = new AddrMode(encoder.TargetRegister.Arg2, null, factory.Target.PointerSize, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Arg1, ref loadFromArg2AndDelta);
if (!factory.TypeSystemContext.HasLazyStaticConstructor(target))
{
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.GetThreadStaticBaseForType));
}
else
{
encoder.EmitLEAQ(encoder.TargetRegister.Arg2, factory.TypeNonGCStaticsSymbol(target));
// TODO: performance optimization - inline the check verifying whether we need to trigger the cctor
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnThreadStaticBase));
}
}
break;
case ReadyToRunHelperId.GetGCStaticBase:
{
MetadataType target = (MetadataType)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Result, factory.TypeGCStaticsSymbol(target));
AddrMode loadFromRax = new AddrMode(encoder.TargetRegister.Result, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromRax);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromRax);
if (!factory.TypeSystemContext.HasLazyStaticConstructor(target))
{
encoder.EmitRET();
}
else
{
// We need to trigger the cctor before returning the base. It is stored at the beginning of the non-GC statics region.
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.TypeNonGCStaticsSymbol(target));
AddrMode initialized = new AddrMode(encoder.TargetRegister.Arg0, null, factory.Target.PointerSize, 0, AddrModeSize.Int32);
encoder.EmitCMP(ref initialized, 1);
encoder.EmitRETIfEqual();
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Result);
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnGCStaticBase));
}
}
break;
case ReadyToRunHelperId.DelegateCtor:
{
DelegateCreationInfo target = (DelegateCreationInfo)Target;
if (target.TargetNeedsVTableLookup)
{
AddrMode loadFromThisPtr = new AddrMode(encoder.TargetRegister.Arg1, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Arg2, ref loadFromThisPtr);
int slot = 0;
if (!relocsOnly)
{
slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, target.TargetMethod);
}
Debug.Assert(slot != -1);
AddrMode loadFromSlot = new AddrMode(encoder.TargetRegister.Arg2, null, EETypeNode.GetVTableOffset(factory.Target.PointerSize) + (slot * factory.Target.PointerSize), 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Arg2, ref loadFromSlot);
}
else
{
int delta = 0;
ISymbolNode targetMethodNode = target.GetTargetNode(factory);
if (targetMethodNode is IFatFunctionPointerNode)
{
delta = FatFunctionPointerConstants.Offset;
}
encoder.EmitLEAQ(encoder.TargetRegister.Arg2, target.GetTargetNode(factory), delta);
}
if (target.Thunk != null)
{
Debug.Assert(target.Constructor.Method.Signature.Length == 3);
encoder.EmitLEAQ(encoder.TargetRegister.Arg3, target.Thunk);
}
else
{
Debug.Assert(target.Constructor.Method.Signature.Length == 2);
}
encoder.EmitJMP(target.Constructor);
}
break;
case ReadyToRunHelperId.ResolveVirtualFunction:
{
MethodDesc targetMethod = (MethodDesc)Target;
if (targetMethod.OwningType.IsInterface)
{
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.InterfaceDispatchCell(targetMethod));
encoder.EmitJMP(factory.ExternSymbol("RhpResolveInterfaceMethod"));
}
else
{
if (relocsOnly)
{
break;
}
AddrMode loadFromThisPtr = new AddrMode(encoder.TargetRegister.Arg0, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromThisPtr);
int slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, targetMethod);
Debug.Assert(slot != -1);
AddrMode loadFromSlot = new AddrMode(encoder.TargetRegister.Result, null, EETypeNode.GetVTableOffset(factory.Target.PointerSize) + (slot * factory.Target.PointerSize), 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromSlot);
encoder.EmitRET();
}
}
break;
default:
throw new NotImplementedException();
}
}
public override IEnumerable <CombinedDependencyListEntry> SearchDynamicDependencies(List <DependencyNodeCore <NodeFactory> > markedNodes, int firstNode, NodeFactory factory)
{
Debug.Assert(_method.IsVirtual && _method.HasInstantiation);
List <CombinedDependencyListEntry> dynamicDependencies = new List <CombinedDependencyListEntry>();
for (int i = firstNode; i < markedNodes.Count; i++)
{
DependencyNodeCore <NodeFactory> entry = markedNodes[i];
EETypeNode entryAsEETypeNode = entry as EETypeNode;
if (entryAsEETypeNode == null)
{
continue;
}
TypeDesc potentialOverrideType = entryAsEETypeNode.Type;
if (!potentialOverrideType.IsDefType)
{
continue;
}
Debug.Assert(!potentialOverrideType.IsRuntimeDeterminedSubtype);
if (potentialOverrideType.IsInterface)
{
if (_method.OwningType.HasSameTypeDefinition(potentialOverrideType) && (potentialOverrideType != _method.OwningType))
{
if (potentialOverrideType.CanCastTo(_method.OwningType))
{
// Variance expansion
MethodDesc matchingMethodOnRelatedVariantMethod = potentialOverrideType.GetMethod(_method.Name, _method.GetTypicalMethodDefinition().Signature);
matchingMethodOnRelatedVariantMethod = _method.Context.GetInstantiatedMethod(matchingMethodOnRelatedVariantMethod, _method.Instantiation);
dynamicDependencies.Add(new CombinedDependencyListEntry(factory.GVMDependencies(matchingMethodOnRelatedVariantMethod), null, "GVM Variant Interface dependency"));
}
}
continue;
}
// If this is an interface gvm, look for types that implement the interface
// and other instantantiations that have the same canonical form.
// This ensure the various slot numbers remain equivalent across all types where there is an equivalence
// relationship in the vtable.
if (_method.OwningType.IsInterface)
{
foreach (DefType interfaceImpl in potentialOverrideType.RuntimeInterfaces)
{
if (interfaceImpl == _method.OwningType)
{
MethodDesc slotDecl = potentialOverrideType.ResolveInterfaceMethodTarget(_method.GetMethodDefinition());
if (slotDecl != null)
{
MethodDesc implementingMethodInstantiation = _method.Context.GetInstantiatedMethod(slotDecl, _method.Instantiation);
dynamicDependencies.Add(new CombinedDependencyListEntry(factory.GVMDependencies(implementingMethodInstantiation), null, "ImplementingMethodInstantiation"));
}
}
}
}
else
{
// Quickly check if the potential overriding type is at all related to the GVM's owning type (there is no need
// to do any processing for a type that is not at all related to the GVM's owning type. Resolving virtuals is expensive).
TypeDesc overrideTypeCur = potentialOverrideType;
{
do
{
if (overrideTypeCur == _method.OwningType)
{
break;
}
overrideTypeCur = overrideTypeCur.BaseType;
}while (overrideTypeCur != null);
if (overrideTypeCur == null)
{
continue;
}
}
overrideTypeCur = potentialOverrideType;
while (overrideTypeCur != null)
{
if (overrideTypeCur == _method.OwningType)
{
// The GVMDependencyNode already declares the entrypoint/dictionary dependencies of the current method
// as static dependencies, therefore we can break the loop as soon we hit the current method's owning type
// while we're traversing the hierarchy of the potential derived types.
break;
}
MethodDesc instantiatedTargetMethod = overrideTypeCur.FindVirtualFunctionTargetMethodOnObjectType(_method);
if (instantiatedTargetMethod != null)
{
dynamicDependencies.Add(new CombinedDependencyListEntry(factory.GVMDependencies(instantiatedTargetMethod), null, "DerivedMethodInstantiation"));
}
overrideTypeCur = overrideTypeCur.BaseType;
}
}
}
return(dynamicDependencies);
}
public EETypeOptionalFieldsNode(EETypeNode owner)
{
_owner = owner;
}
public static void EmitObject(string objectFilePath, IEnumerable <DependencyNode> nodes, NodeFactory factory, WebAssemblyCodegenCompilation compilation, IObjectDumper dumper)
{
WebAssemblyObjectWriter objectWriter = new WebAssemblyObjectWriter(objectFilePath, factory, compilation);
bool succeeded = false;
try
{
//ObjectNodeSection managedCodeSection = null;
var listOfOffsets = new List <int>();
foreach (DependencyNode depNode in nodes)
{
ObjectNode node = depNode as ObjectNode;
if (node == null)
{
continue;
}
if (node.ShouldSkipEmittingObjectNode(factory))
{
continue;
}
if (node is EETypeNode)
{
DefType t = ((EETypeNode)node).Type.GetClosestDefType();
int iSlot = GetVTableSlotsCount(factory, t.BaseType);
var pointerSize = factory.Target.PointerSize;
foreach (MethodDesc m in factory.VTable(t).Slots)
{
// set _getslot variable to sizeof(EEType) + iSlot * pointer size
string realSymbolName = factory.NameMangler.GetMangledMethodName(m).ToString();
var globalRefName = "__getslot__" + realSymbolName;
LLVMValueRef slot = LLVM.GetNamedGlobal(compilation.Module, globalRefName);
if (slot.Pointer == IntPtr.Zero)
{
slot = LLVM.AddGlobal(compilation.Module, LLVM.Int32Type(), globalRefName);
}
LLVM.SetInitializer(slot, LLVM.ConstInt(LLVM.Int32Type(), (ulong)((EETypeNode.GetVTableOffset(pointerSize) / pointerSize) + iSlot), LLVMMisc.False));
LLVM.SetGlobalConstant(slot, LLVMMisc.True);
iSlot++;
}
}
objectWriter.StartObjectNode(node);
ObjectData nodeContents = node.GetData(factory);
if (dumper != null)
{
dumper.DumpObjectNode(factory.NameMangler, node, nodeContents);
}
#if DEBUG
foreach (ISymbolNode definedSymbol in nodeContents.DefinedSymbols)
{
try
{
_previouslyWrittenNodeNames.Add(definedSymbol.GetMangledName(factory.NameMangler), definedSymbol);
}
catch (ArgumentException)
{
ISymbolNode alreadyWrittenSymbol = _previouslyWrittenNodeNames[definedSymbol.GetMangledName(factory.NameMangler)];
Debug.Fail("Duplicate node name emitted to file",
$"Symbol {definedSymbol.GetMangledName(factory.NameMangler)} has already been written to the output object file {objectFilePath} with symbol {alreadyWrittenSymbol}");
}
}
#endif
ObjectNodeSection section = node.Section;
if (objectWriter.ShouldShareSymbol(node))
{
section = objectWriter.GetSharedSection(section, ((ISymbolNode)node).GetMangledName(factory.NameMangler));
}
// Ensure section and alignment for the node.
objectWriter.SetSection(section);
objectWriter.EmitAlignment(nodeContents.Alignment);
objectWriter.ResetByteRunInterruptionOffsets(nodeContents.Relocs);
// Build symbol definition map.
objectWriter.BuildSymbolDefinitionMap(node, nodeContents.DefinedSymbols);
Relocation[] relocs = nodeContents.Relocs;
int nextRelocOffset = -1;
int nextRelocIndex = -1;
if (relocs.Length > 0)
{
nextRelocOffset = relocs[0].Offset;
nextRelocIndex = 0;
}
int i = 0;
listOfOffsets.Clear();
listOfOffsets.AddRange(objectWriter._byteInterruptionOffsets);
int offsetIndex = 0;
while (i < nodeContents.Data.Length)
{
// Emit symbol definitions if necessary
objectWriter.EmitSymbolDefinition(i);
if (i == nextRelocOffset)
{
Relocation reloc = relocs[nextRelocIndex];
long delta;
unsafe
{
fixed(void *location = &nodeContents.Data[i])
{
delta = Relocation.ReadValue(reloc.RelocType, location);
}
}
int size = objectWriter.EmitSymbolReference(reloc.Target, (int)delta, reloc.RelocType);
/*
* WebAssembly has no thumb
* // Emit a copy of original Thumb2 instruction that came from RyuJIT
* if (reloc.RelocType == RelocType.IMAGE_REL_BASED_THUMB_MOV32 ||
* reloc.RelocType == RelocType.IMAGE_REL_BASED_THUMB_BRANCH24)
* {
* unsafe
* {
* fixed (void* location = &nodeContents.Data[i])
* {
* objectWriter.EmitBytes((IntPtr)location, size);
* }
* }
* }*/
// Update nextRelocIndex/Offset
if (++nextRelocIndex < relocs.Length)
{
nextRelocOffset = relocs[nextRelocIndex].Offset;
}
else
{
// This is the last reloc. Set the next reloc offset to -1 in case the last reloc has a zero size,
// which means the reloc does not have vacant bytes corresponding to in the data buffer. E.g,
// IMAGE_REL_THUMB_BRANCH24 is a kind of 24-bit reloc whose bits scatte over the instruction that
// references it. We do not vacate extra bytes in the data buffer for this kind of reloc.
nextRelocOffset = -1;
}
i += size;
}
else
{
while (offsetIndex < listOfOffsets.Count && listOfOffsets[offsetIndex] <= i)
{
offsetIndex++;
}
int nextOffset = offsetIndex == listOfOffsets.Count ? nodeContents.Data.Length : listOfOffsets[offsetIndex];
unsafe
{
// Todo: Use Span<T> instead once it's available to us in this repo
fixed(byte *pContents = &nodeContents.Data[i])
{
objectWriter.EmitBytes((IntPtr)(pContents), nextOffset - i);
i += nextOffset - i;
}
}
}
}
Debug.Assert(i == nodeContents.Data.Length);
// It is possible to have a symbol just after all of the data.
objectWriter.EmitSymbolDefinition(nodeContents.Data.Length);
objectWriter.DoneObjectNode();
}
succeeded = true;
}
finally
{
objectWriter.Dispose();
if (!succeeded)
{
// If there was an exception while generating the OBJ file, make sure we don't leave the unfinished
// object file around.
try
{
File.Delete(objectFilePath);
}
catch
{
}
}
}
}
private void GetCodeForReadyToRunGenericHelper(WebAssemblyCodegenCompilation compilation, ReadyToRunGenericHelperNode node, NodeFactory factory)
{
LLVMBuilderRef builder = compilation.Module.Context.CreateBuilder();
var args = new List <LLVMTypeRef>();
MethodDesc delegateCtor = null;
if (node.Id == ReadyToRunHelperId.DelegateCtor)
{
DelegateCreationInfo target = (DelegateCreationInfo)node.Target;
delegateCtor = target.Constructor.Method;
bool isStatic = delegateCtor.Signature.IsStatic;
int argCount = delegateCtor.Signature.Length;
if (!isStatic)
{
argCount++;
}
for (int i = 0; i < argCount; i++)
{
TypeDesc argType;
if (i == 0 && !isStatic)
{
argType = delegateCtor.OwningType;
}
else
{
argType = delegateCtor.Signature[i - (isStatic ? 0 : 1)];
}
args.Add(ILImporter.GetLLVMTypeForTypeDesc(argType));
}
}
LLVMValueRef helperFunc = Module.GetNamedFunction(node.GetMangledName(factory.NameMangler));
if (helperFunc.Handle == IntPtr.Zero)
{
throw new Exception("if the function is requested here, it should have been created earlier");
}
var helperBlock = helperFunc.AppendBasicBlock("genericHelper");
builder.PositionAtEnd(helperBlock);
var importer = new ILImporter(builder, compilation, Module, helperFunc, delegateCtor);
LLVMValueRef ctx;
string gepName;
if (node is ReadyToRunGenericLookupFromTypeNode)
{
// Locate the VTable slot that points to the dictionary
int vtableSlot = VirtualMethodSlotHelper.GetGenericDictionarySlot(factory, (TypeDesc)node.DictionaryOwner);
int pointerSize = factory.Target.PointerSize;
// Load the dictionary pointer from the VTable
int slotOffset = EETypeNode.GetVTableOffset(pointerSize) + (vtableSlot * pointerSize);
var slotGep = builder.BuildGEP(helperFunc.GetParam(1), new[] { LLVMValueRef.CreateConstInt(LLVMTypeRef.Int32, (ulong)slotOffset, false) }, "slotGep");
var slotGepPtrPtr = builder.BuildPointerCast(slotGep,
LLVMTypeRef.CreatePointer(LLVMTypeRef.CreatePointer(LLVMTypeRef.Int8, 0), 0), "slotGepPtrPtr");
ctx = builder.BuildLoad(slotGepPtrPtr, "dictGep");
gepName = "typeNodeGep";
}
else
{
ctx = helperFunc.GetParam(1);
gepName = "paramGep";
}
LLVMValueRef resVar = OutputCodeForDictionaryLookup(builder, factory, node, node.LookupSignature, ctx, gepName);
switch (node.Id)
{
case ReadyToRunHelperId.GetNonGCStaticBase:
{
MetadataType target = (MetadataType)node.Target;
if (compilation.TypeSystemContext.HasLazyStaticConstructor(target))
{
importer.OutputCodeForTriggerCctor(target, resVar);
}
}
break;
case ReadyToRunHelperId.GetGCStaticBase:
{
MetadataType target = (MetadataType)node.Target;
var ptrPtrPtr = builder.BuildBitCast(resVar, LLVMTypeRef.CreatePointer(LLVMTypeRef.CreatePointer(LLVMTypeRef.CreatePointer(LLVMTypeRef.Int8, 0), 0), 0), "ptrPtrPtr");
resVar = builder.BuildLoad(builder.BuildLoad(ptrPtrPtr, "ind1"), "ind2");
if (compilation.TypeSystemContext.HasLazyStaticConstructor(target))
{
GenericLookupResult nonGcRegionLookup = factory.GenericLookup.TypeNonGCStaticBase(target);
var nonGcStaticsBase = OutputCodeForDictionaryLookup(builder, factory, node, nonGcRegionLookup, ctx, "lazyGep");
importer.OutputCodeForTriggerCctor(target, nonGcStaticsBase);
}
}
break;
case ReadyToRunHelperId.GetThreadStaticBase:
{
MetadataType target = (MetadataType)node.Target;
if (compilation.TypeSystemContext.HasLazyStaticConstructor(target))
{
GenericLookupResult nonGcRegionLookup = factory.GenericLookup.TypeNonGCStaticBase(target);
var threadStaticBase = OutputCodeForDictionaryLookup(builder, factory, node, nonGcRegionLookup, ctx, "tsGep");
importer.OutputCodeForTriggerCctor(target, threadStaticBase);
}
resVar = importer.OutputCodeForGetThreadStaticBaseForType(resVar).ValueAsType(LLVMTypeRef.CreatePointer(LLVMTypeRef.Int8, 0), builder);
}
break;
case ReadyToRunHelperId.DelegateCtor:
{
DelegateCreationInfo target = (DelegateCreationInfo)node.Target;
MethodDesc constructor = target.Constructor.Method;
var fatPtr = ILImporter.MakeFatPointer(builder, resVar, compilation);
importer.OutputCodeForDelegateCtorInit(builder, helperFunc, constructor, fatPtr);
}
break;
// These are all simple: just get the thing from the dictionary and we're done
case ReadyToRunHelperId.TypeHandle:
case ReadyToRunHelperId.MethodHandle:
case ReadyToRunHelperId.FieldHandle:
case ReadyToRunHelperId.MethodDictionary:
case ReadyToRunHelperId.MethodEntry:
case ReadyToRunHelperId.VirtualDispatchCell:
case ReadyToRunHelperId.DefaultConstructor:
break;
default:
throw new NotImplementedException();
}
if (node.Id != ReadyToRunHelperId.DelegateCtor)
{
builder.BuildRet(resVar);
}
else
{
builder.BuildRetVoid();
}
}
protected override void EmitCode(NodeFactory factory, ref X64Emitter encoder, bool relocsOnly)
{
switch (Id)
{
case ReadyToRunHelperId.VirtualCall:
{
MethodDesc targetMethod = (MethodDesc)Target;
Debug.Assert(!targetMethod.OwningType.IsInterface);
Debug.Assert(!targetMethod.CanMethodBeInSealedVTable());
AddrMode loadFromThisPtr = new AddrMode(encoder.TargetRegister.Arg0, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromThisPtr);
int pointerSize = factory.Target.PointerSize;
int slot = 0;
if (!relocsOnly)
{
slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, targetMethod, targetMethod.OwningType);
Debug.Assert(slot != -1);
}
Debug.Assert(((NativeSequencePoint[])((INodeWithDebugInfo)this).GetNativeSequencePoints())[1].NativeOffset == encoder.Builder.CountBytes);
AddrMode jmpAddrMode = new AddrMode(encoder.TargetRegister.Result, null, EETypeNode.GetVTableOffset(pointerSize) + (slot * pointerSize), 0, AddrModeSize.Int64);
encoder.EmitJmpToAddrMode(ref jmpAddrMode);
}
break;
case ReadyToRunHelperId.GetNonGCStaticBase:
{
MetadataType target = (MetadataType)Target;
bool hasLazyStaticConstructor = factory.PreinitializationManager.HasLazyStaticConstructor(target);
encoder.EmitLEAQ(encoder.TargetRegister.Result, factory.TypeNonGCStaticsSymbol(target));
if (!hasLazyStaticConstructor)
{
encoder.EmitRET();
}
else
{
// We need to trigger the cctor before returning the base. It is stored at the beginning of the non-GC statics region.
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.TypeNonGCStaticsSymbol(target), -NonGCStaticsNode.GetClassConstructorContextSize(factory.Target));
AddrMode initialized = new AddrMode(encoder.TargetRegister.Arg0, null, factory.Target.PointerSize, 0, AddrModeSize.Int32);
encoder.EmitCMP(ref initialized, 1);
encoder.EmitRETIfEqual();
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Result);
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnNonGCStaticBase));
}
}
break;
case ReadyToRunHelperId.GetThreadStaticBase:
{
MetadataType target = (MetadataType)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg2, factory.TypeThreadStaticIndex(target));
// First arg: address of the TypeManager slot that provides the helper with
// information about module index and the type manager instance (which is used
// for initialization on first access).
AddrMode loadFromArg2 = new AddrMode(encoder.TargetRegister.Arg2, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Arg0, ref loadFromArg2);
// Second arg: index of the type in the ThreadStatic section of the modules
AddrMode loadFromArg2AndDelta = new AddrMode(encoder.TargetRegister.Arg2, null, factory.Target.PointerSize, 0, AddrModeSize.Int32);
encoder.EmitMOV(encoder.TargetRegister.Arg1, ref loadFromArg2AndDelta);
if (!factory.PreinitializationManager.HasLazyStaticConstructor(target))
{
encoder.EmitJMP(factory.ExternSymbol("RhpGetThreadStaticBaseForType"));
}
else
{
encoder.EmitLEAQ(encoder.TargetRegister.Arg2, factory.TypeNonGCStaticsSymbol(target), -NonGCStaticsNode.GetClassConstructorContextSize(factory.Target));
AddrMode initialized = new AddrMode(encoder.TargetRegister.Arg2, null, factory.Target.PointerSize, 0, AddrModeSize.Int32);
encoder.EmitCMP(ref initialized, 1);
encoder.EmitJE(factory.ExternSymbol("RhpGetThreadStaticBaseForType"));
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnThreadStaticBase));
}
}
break;
case ReadyToRunHelperId.GetGCStaticBase:
{
MetadataType target = (MetadataType)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Result, factory.TypeGCStaticsSymbol(target));
AddrMode loadFromRax = new AddrMode(encoder.TargetRegister.Result, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromRax);
if (!factory.PreinitializationManager.HasLazyStaticConstructor(target))
{
encoder.EmitRET();
}
else
{
// We need to trigger the cctor before returning the base. It is stored at the beginning of the non-GC statics region.
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.TypeNonGCStaticsSymbol(target), -NonGCStaticsNode.GetClassConstructorContextSize(factory.Target));
AddrMode initialized = new AddrMode(encoder.TargetRegister.Arg0, null, factory.Target.PointerSize, 0, AddrModeSize.Int32);
encoder.EmitCMP(ref initialized, 1);
encoder.EmitRETIfEqual();
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Result);
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnGCStaticBase));
}
}
break;
case ReadyToRunHelperId.DelegateCtor:
{
DelegateCreationInfo target = (DelegateCreationInfo)Target;
if (target.TargetNeedsVTableLookup)
{
Debug.Assert(!target.TargetMethod.CanMethodBeInSealedVTable());
AddrMode loadFromThisPtr = new AddrMode(encoder.TargetRegister.Arg1, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Arg2, ref loadFromThisPtr);
int slot = 0;
if (!relocsOnly)
{
slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, target.TargetMethod, target.TargetMethod.OwningType);
}
Debug.Assert(slot != -1);
AddrMode loadFromSlot = new AddrMode(encoder.TargetRegister.Arg2, null, EETypeNode.GetVTableOffset(factory.Target.PointerSize) + (slot * factory.Target.PointerSize), 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Arg2, ref loadFromSlot);
}
else
{
ISymbolNode targetMethodNode = target.GetTargetNode(factory);
encoder.EmitLEAQ(encoder.TargetRegister.Arg2, target.GetTargetNode(factory));
}
if (target.Thunk != null)
{
Debug.Assert(target.Constructor.Method.Signature.Length == 3);
encoder.EmitLEAQ(encoder.TargetRegister.Arg3, target.Thunk);
}
else
{
Debug.Assert(target.Constructor.Method.Signature.Length == 2);
}
encoder.EmitJMP(target.Constructor);
}
break;
case ReadyToRunHelperId.ResolveVirtualFunction:
{
MethodDesc targetMethod = (MethodDesc)Target;
if (targetMethod.OwningType.IsInterface)
{
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.InterfaceDispatchCell(targetMethod));
encoder.EmitJMP(factory.ExternSymbol("RhpResolveInterfaceMethod"));
}
else
{
if (relocsOnly)
{
break;
}
AddrMode loadFromThisPtr = new AddrMode(encoder.TargetRegister.Arg0, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromThisPtr);
Debug.Assert(!targetMethod.CanMethodBeInSealedVTable());
int slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, targetMethod, targetMethod.OwningType);
Debug.Assert(slot != -1);
AddrMode loadFromSlot = new AddrMode(encoder.TargetRegister.Result, null, EETypeNode.GetVTableOffset(factory.Target.PointerSize) + (slot * factory.Target.PointerSize), 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromSlot);
encoder.EmitRET();
}
}
break;
default:
throw new NotImplementedException();
}
}
protected override void EmitCode(NodeFactory factory, ref X64Emitter encoder, bool relocsOnly)
{
switch (Id)
{
case ReadyToRunHelperId.NewHelper:
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.ConstructedTypeSymbol((TypeDesc)Target));
encoder.EmitJMP(factory.ExternSymbol("__allocate_object"));
break;
case ReadyToRunHelperId.VirtualCall:
if (relocsOnly)
{
break;
}
AddrMode loadFromThisPtr = new AddrMode(encoder.TargetRegister.Arg0, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromThisPtr);
{
int slot = VirtualMethodSlotHelper.GetVirtualMethodSlot(factory, (MethodDesc)Target);
Debug.Assert(slot != -1);
AddrMode jmpAddrMode = new AddrMode(encoder.TargetRegister.Result, null, EETypeNode.GetVTableOffset(factory.Target.PointerSize) + (slot * factory.Target.PointerSize), 0, AddrModeSize.Int64);
encoder.EmitJmpToAddrMode(ref jmpAddrMode);
}
break;
case ReadyToRunHelperId.IsInstanceOf:
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.NecessaryTypeSymbol((TypeDesc)Target));
encoder.EmitJMP(factory.ExternSymbol("__isinst_class"));
break;
case ReadyToRunHelperId.CastClass:
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.NecessaryTypeSymbol((TypeDesc)Target));
encoder.EmitJMP(factory.ExternSymbol("__castclass_class"));
break;
case ReadyToRunHelperId.NewArr1:
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.NecessaryTypeSymbol((TypeDesc)Target));
encoder.EmitJMP(factory.ExternSymbol("__allocate_array"));
break;
case ReadyToRunHelperId.GetNonGCStaticBase:
if (!((MetadataType)Target).HasStaticConstructor)
{
Debug.Assert(Id == ReadyToRunHelperId.GetNonGCStaticBase);
encoder.EmitLEAQ(encoder.TargetRegister.Result, factory.TypeNonGCStaticsSymbol((MetadataType)Target));
encoder.EmitRET();
}
else
{
// We need to trigger the cctor before returning the base
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.TypeCctorContextSymbol((MetadataType)Target));
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.TypeNonGCStaticsSymbol((MetadataType)Target));
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnNonGCStaticBase));
}
break;
case ReadyToRunHelperId.GetThreadStaticBase:
encoder.EmitINT3();
break;
case ReadyToRunHelperId.GetGCStaticBase:
if (!((MetadataType)Target).HasStaticConstructor)
{
encoder.EmitLEAQ(encoder.TargetRegister.Result, factory.TypeGCStaticsSymbol((MetadataType)Target));
AddrMode loadFromRax = new AddrMode(encoder.TargetRegister.Result, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromRax);
encoder.EmitMOV(encoder.TargetRegister.Result, ref loadFromRax);
encoder.EmitRET();
}
else
{
// We need to trigger the cctor before returning the base
encoder.EmitLEAQ(encoder.TargetRegister.Arg0, factory.TypeCctorContextSymbol((MetadataType)Target));
encoder.EmitLEAQ(encoder.TargetRegister.Arg1, factory.TypeGCStaticsSymbol((MetadataType)Target));
AddrMode loadFromRdx = new AddrMode(encoder.TargetRegister.Arg1, null, 0, 0, AddrModeSize.Int64);
encoder.EmitMOV(encoder.TargetRegister.Arg1, ref loadFromRdx);
encoder.EmitMOV(encoder.TargetRegister.Arg1, ref loadFromRdx);
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnGCStaticBase));
}
break;
case ReadyToRunHelperId.DelegateCtor:
{
DelegateInfo target = (DelegateInfo)Target;
encoder.EmitLEAQ(encoder.TargetRegister.Arg2, factory.MethodEntrypoint(target.Target));
if (target.ShuffleThunk != null)
{
encoder.EmitLEAQ(encoder.TargetRegister.Arg3, factory.MethodEntrypoint(target.ShuffleThunk));
}
encoder.EmitJMP(factory.MethodEntrypoint(target.Ctor));
}
break;
default:
throw new NotImplementedException();
}
}