protected void EmitDictionaryLookup(NodeFactory factory, ref ARMEmitter encoder, Register context, Register result, GenericLookupResult lookup, bool relocsOnly)
{
// INVARIANT: must not trash context register
// Find the generic dictionary slot
int dictionarySlot = 0;
if (!relocsOnly)
{
// The concrete slot won't be known until we're emitting data - don't ask for it in relocsOnly.
dictionarySlot = factory.GenericDictionaryLayout(_dictionaryOwner).GetSlotForEntry(lookup);
}
// Load the generic dictionary cell
encoder.EmitLDR(result, context, dictionarySlot * factory.Target.PointerSize);
switch (lookup.LookupResultReferenceType(factory))
{
case GenericLookupResultReferenceType.Indirect:
// Do another indirection
encoder.EmitLDR(result, result);
break;
case GenericLookupResultReferenceType.ConditionalIndirect:
// Test result, 0x1
// JEQ L1
// mov result, [result-1]
// L1:
throw new NotImplementedException();
default:
break;
}
}
public static void EmitHelperNYIAssert(NodeFactory factory, ref ARMEmitter encoder, ReadyToRunHelperId hId,
[System.Runtime.CompilerServices.CallerFilePath] string sourceFilePath = null,
[System.Runtime.CompilerServices.CallerMemberName] string memberName = null,
[System.Runtime.CompilerServices.CallerLineNumber] int sourceLineNumber = 0)
{
EmitNYIAssert(factory, ref encoder, hId.ToString() + " is not implemented", sourceFilePath, memberName, sourceLineNumber);
}
protected Register GetContextRegister(ref /* readonly */ ARMEmitter encoder)
{
if (_id == ReadyToRunHelperId.DelegateCtor)
{
return(encoder.TargetRegister.Arg2);
}
else
{
return(encoder.TargetRegister.Arg0);
}
}
public static void EmitNYIAssert(NodeFactory factory, ref ARMEmitter encoder, string message,
[System.Runtime.CompilerServices.CallerFilePath] string sourceFilePath = null,
[System.Runtime.CompilerServices.CallerMemberName] string memberName = null,
[System.Runtime.CompilerServices.CallerLineNumber] int sourceLineNumber = 0)
{
ISymbolNode NYI_Assert = factory.ExternSymbol("NYI_Assert");
String CallInfoPrefix = " " + sourceFilePath + "(" + sourceLineNumber.ToString() + "): method " + memberName + ": ";
ISymbolNode messageSymbol = factory.ConstantUtf8String(CallInfoPrefix + message);
encoder.EmitMOV(encoder.TargetRegister.Arg0, messageSymbol);
encoder.EmitJMP(NYI_Assert);
}
protected override void EmitCode(NodeFactory factory, ref ARMEmitter encoder, bool relocsOnly)
{
if (!_target.RepresentsIndirectionCell)
{
encoder.EmitJMP(_target); // b methodEntryPoint
}
else
{
encoder.EmitMOV(encoder.TargetRegister.InterproceduralScratch, _target);
encoder.EmitJMP(encoder.TargetRegister.InterproceduralScratch);
}
}
protected sealed override void EmitCode(NodeFactory factory, ref ARMEmitter encoder, bool relocsOnly)
{
// First load the generic context into the context register.
EmitLoadGenericContext(factory, ref encoder, relocsOnly);
Register contextRegister = GetContextRegister(ref encoder);
switch (_id)
{
case ReadyToRunHelperId.GetNonGCStaticBase:
{
ARMDebug.EmitNYIAssert(factory, ref encoder, "GetNonGCStaticBase EmitCode is not implemented");
/*
***
***NOT TESTED!!!
***
***Debug.Assert(contextRegister == encoder.TargetRegister.Arg0);
***
***MetadataType target = (MetadataType)_target;
***
***if (!factory.TypeSystemContext.HasLazyStaticConstructor(target))
***{
***EmitDictionaryLookup(factory, ref encoder, encoder.TargetRegister.Arg0, encoder.TargetRegister.Result, _lookupSignature, relocsOnly);
***encoder.EmitRET();
***}
***else
***{
***EmitDictionaryLookup(factory, ref encoder, encoder.TargetRegister.Arg0, encoder.TargetRegister.Arg0, _lookupSignature, relocsOnly);
***encoder.EmitMOV(encoder.TargetRegister.Result, encoder.TargetRegister.Arg0);
***
***// We need to trigger the cctor before returning the base. It is stored at the beginning of the non-GC statics region.
***int cctorContextSize = NonGCStaticsNode.GetClassConstructorContextStorageSize(factory.Target, target);
***encoder.EmitSUB(encoder.TargetRegister.Arg0, ((byte)(cctorContextSize)));
***// If we get the required state it will be necessary to restore the original value before returning
***encoder.EmitPUSH(encoder.TargetRegister.Arg0);
***
***// cmp [r0 + ptrSize], 1
***encoder.EmitLDR(encoder.TargetRegister.Arg0, encoder.TargetRegister.Arg0, ((short)factory.Target.PointerSize));
***encoder.EmitCMP(encoder.TargetRegister.Arg0, ((byte)1));
***// return with restoring register
***encoder.EmitRETIfEqualPOP(encoder.TargetRegister.Arg0);
***
***// just restore after cmp
***encoder.EmitPOP(encoder.TargetRegister.Arg0);
***
***encoder.EmitLDR(encoder.TargetRegister.Arg0, encoder.TargetRegister.Arg0);
***encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Result);
***encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnNonGCStaticBase));
***}
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);
}
protected virtual void EmitLoadGenericContext(NodeFactory factory, ref ARMEmitter encoder, bool relocsOnly)
{
// Assume generic context is already loaded in the context register.
}
protected sealed override void EmitCode(NodeFactory factory, ref ARMEmitter encoder, bool relocsOnly)
{
ARMDebug.EmitNYIAssert(factory, ref encoder, "EmitCode is not implemented");
}
protected override void EmitCode(NodeFactory factory, ref ARMEmitter encoder, bool relocsOnly)
{
encoder.EmitADD(encoder.TargetRegister.Arg0, (byte)factory.Target.PointerSize); // add r0, sizeof(void*);
encoder.EmitJMP(factory.MethodEntrypoint(_target)); // b methodEntryPoint
}
protected override void EmitCode(NodeFactory factory, ref ARMEmitter encoder, bool relocsOnly)
{
encoder.EmitJMP(GetTarget(factory));
}
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 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:
{
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.VirtualCall);
/*
***
***NOT TESTED!!!
***
***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:
{
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.GetThreadStaticBase);
/*
***
***NOT TESTED!!!
***
***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));
***}
*/
}
protected sealed override void EmitCode(NodeFactory factory, ref ARMEmitter encoder, bool relocsOnly)
{
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;
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.VirtualCall);
}
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;
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.GetNonGCStaticBase);
}
break;
case ReadyToRunHelperId.GetThreadStaticBase:
{
MetadataType target = (MetadataType)Target;
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.GetThreadStaticBase);
}
break;
case ReadyToRunHelperId.GetGCStaticBase:
{
MetadataType target = (MetadataType)Target;
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.GetGCStaticBase);
}
break;
case ReadyToRunHelperId.DelegateCtor:
{
DelegateCreationInfo target = (DelegateCreationInfo)Target;
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.DelegateCtor);
}
break;
case ReadyToRunHelperId.ResolveVirtualFunction:
{
MethodDesc targetMethod = (MethodDesc)Target;
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.ResolveVirtualFunction);
}
break;
default:
throw new NotImplementedException();
}
}
protected sealed override void EmitCode(NodeFactory factory, ref ARMEmitter encoder, bool relocsOnly)
{
// First load the generic context into the context register.
EmitLoadGenericContext(factory, ref encoder, relocsOnly);
Register contextRegister = GetContextRegister(ref encoder);
switch (_id)
{
case ReadyToRunHelperId.GetNonGCStaticBase:
{
Debug.Assert(contextRegister == encoder.TargetRegister.Arg0);
EmitDictionaryLookup(factory, ref encoder, encoder.TargetRegister.Arg0, encoder.TargetRegister.Result, _lookupSignature, relocsOnly);
MetadataType target = (MetadataType)_target;
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.
int cctorContextSize = NonGCStaticsNode.GetClassConstructorContextSize(factory.Target);
encoder.EmitLDR(encoder.TargetRegister.Arg1, encoder.TargetRegister.Arg0, ((short)(factory.Target.PointerSize - cctorContextSize)));
encoder.EmitCMP(encoder.TargetRegister.Arg1, ((byte)1));
encoder.EmitRETIfEqual();
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Result);
encoder.EmitSUB(encoder.TargetRegister.Arg0, ((byte)(cctorContextSize)));
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnNonGCStaticBase));
}
}
break;
case ReadyToRunHelperId.GetGCStaticBase:
{
Debug.Assert(contextRegister == encoder.TargetRegister.Arg0);
encoder.EmitMOV(encoder.TargetRegister.Arg1, encoder.TargetRegister.Arg0);
EmitDictionaryLookup(factory, ref encoder, encoder.TargetRegister.Arg0, encoder.TargetRegister.Result, _lookupSignature, relocsOnly);
encoder.EmitLDR(encoder.TargetRegister.Result, encoder.TargetRegister.Result);
MetadataType target = (MetadataType)_target;
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.
GenericLookupResult nonGcRegionLookup = factory.GenericLookup.TypeNonGCStaticBase(target);
EmitDictionaryLookup(factory, ref encoder, encoder.TargetRegister.Arg1, encoder.TargetRegister.Arg2, nonGcRegionLookup, relocsOnly);
int cctorContextSize = NonGCStaticsNode.GetClassConstructorContextSize(factory.Target);
encoder.EmitLDR(encoder.TargetRegister.Arg3, encoder.TargetRegister.Arg2, ((short)(factory.Target.PointerSize - cctorContextSize)));
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.EmitSUB(encoder.TargetRegister.Arg0, cctorContextSize);
encoder.EmitJMP(factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnGCStaticBase));
}
}
break;
case ReadyToRunHelperId.GetThreadStaticBase:
{
Debug.Assert(contextRegister == encoder.TargetRegister.Arg0);
MetadataType target = (MetadataType)_target;
// Look up the index cell
EmitDictionaryLookup(factory, ref encoder, encoder.TargetRegister.Arg0, encoder.TargetRegister.Arg1, _lookupSignature, relocsOnly);
ISymbolNode helperEntrypoint;
if (factory.PreinitializationManager.HasLazyStaticConstructor(target))
{
// There is a lazy class constructor. We need the non-GC static base because that's where the
// class constructor context lives.
GenericLookupResult nonGcRegionLookup = factory.GenericLookup.TypeNonGCStaticBase(target);
EmitDictionaryLookup(factory, ref encoder, encoder.TargetRegister.Arg0, encoder.TargetRegister.Arg2, nonGcRegionLookup, relocsOnly);
int cctorContextSize = NonGCStaticsNode.GetClassConstructorContextSize(factory.Target);
encoder.EmitSUB(encoder.TargetRegister.Arg2, cctorContextSize);
helperEntrypoint = factory.HelperEntrypoint(HelperEntrypoint.EnsureClassConstructorRunAndReturnThreadStaticBase);
}
else
{
helperEntrypoint = factory.HelperEntrypoint(HelperEntrypoint.GetThreadStaticBaseForType);
}
// 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.Arg1);
// Second arg: index of the type in the ThreadStatic section of the modules
encoder.EmitLDR(encoder.TargetRegister.Arg1, encoder.TargetRegister.Arg1, factory.Target.PointerSize);
encoder.EmitJMP(helperEntrypoint);
}
break;
case ReadyToRunHelperId.DelegateCtor:
{
// This is a weird helper. Codegen populated Arg0 and Arg1 with the values that the constructor
// method expects. Codegen also passed us the generic context in Arg2.
// We now need to load the delegate target method into Arg2 (using a dictionary lookup)
// and the optional 4th parameter, and call the ctor.
Debug.Assert(contextRegister == encoder.TargetRegister.Arg2);
var target = (DelegateCreationInfo)_target;
EmitDictionaryLookup(factory, ref encoder, encoder.TargetRegister.Arg2, encoder.TargetRegister.Arg2, _lookupSignature, relocsOnly);
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;
// 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:
case ReadyToRunHelperId.ObjectAllocator:
case ReadyToRunHelperId.TypeHandleForCasting:
case ReadyToRunHelperId.ConstrainedDirectCall:
{
EmitDictionaryLookup(factory, ref encoder, contextRegister, encoder.TargetRegister.Result, _lookupSignature, relocsOnly);
encoder.EmitRET();
}
break;
default:
throw new NotImplementedException();
}
}
protected override void EmitCode(NodeFactory factory, ref ARMEmitter instructionEncoder, bool relocsOnly)
{
instructionEncoder.EmitPUSH(ARM.Register.R12);
instructionEncoder.EmitMOV(ARM.Register.R12, factory.ExternSymbol("RhpInitialInterfaceDispatch"));
instructionEncoder.EmitMOV(ARM.Register.R15, ARM.Register.R12);
}
protected override void EmitCode(NodeFactory factory, ref ARMEmitter encoder, bool relocsOnly)
{
switch (Id)
{
case ReadyToRunHelperId.NewHelper:
{
TypeDesc target = (TypeDesc)Target;
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.NewHelper);
}
break;
case ReadyToRunHelperId.VirtualCall:
{
MethodDesc targetMethod = (MethodDesc)Target;
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.VirtualCall);
}
break;
case ReadyToRunHelperId.IsInstanceOf:
{
TypeDesc target = (TypeDesc)Target;
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.IsInstanceOf);
}
break;
case ReadyToRunHelperId.CastClass:
{
TypeDesc target = (TypeDesc)Target;
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.CastClass);
}
break;
case ReadyToRunHelperId.NewArr1:
{
TypeDesc target = (TypeDesc)Target;
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.NewArr1);
}
break;
case ReadyToRunHelperId.GetNonGCStaticBase:
{
MetadataType target = (MetadataType)Target;
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.GetNonGCStaticBase);
}
break;
case ReadyToRunHelperId.GetThreadStaticBase:
{
MetadataType target = (MetadataType)Target;
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.GetThreadStaticBase);
}
break;
case ReadyToRunHelperId.GetGCStaticBase:
{
MetadataType target = (MetadataType)Target;
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.GetGCStaticBase);
}
break;
case ReadyToRunHelperId.DelegateCtor:
{
DelegateCreationInfo target = (DelegateCreationInfo)Target;
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.DelegateCtor);
}
break;
case ReadyToRunHelperId.ResolveVirtualFunction:
{
MethodDesc targetMethod = (MethodDesc)Target;
ARMDebug.EmitHelperNYIAssert(factory, ref encoder, ReadyToRunHelperId.ResolveVirtualFunction);
}
break;
default:
throw new NotImplementedException();
}
}
