/// <summary>
/// Provides method bodies for intrinsics recognized by the compiler.
/// It can return null if it's not an intrinsic recognized by the compiler,
/// but an intrinsic e.g. recognized by codegen.
/// </summary>
private MethodIL TryGetIntrinsicMethodIL(MethodDesc method)
{
var mdType = method.OwningType as MetadataType;
if (mdType == null)
{
return(null);
}
if (mdType.Name == "RuntimeHelpers" && mdType.Namespace == "System.Runtime.CompilerServices")
{
return(RuntimeHelpersIntrinsics.EmitIL(method));
}
if (mdType.Name == "Unsafe" && mdType.Namespace == "Internal.Runtime.CompilerServices")
{
return(UnsafeIntrinsics.EmitIL(method));
}
if (mdType.Name == "Volatile" && mdType.Namespace == "System.Threading")
{
return(VolatileIntrinsics.EmitIL(method));
}
if (mdType.Name == "Interlocked" && mdType.Namespace == "System.Threading")
{
return(InterlockedIntrinsics.EmitIL(method));
}
return(null);
}
/// <summary>
/// Provides method bodies for intrinsics recognized by the compiler.
/// It can return null if it's not an intrinsic recognized by the compiler,
/// but an intrinsic e.g. recognized by codegen.
/// </summary>
private MethodIL TryGetIntrinsicMethodIL(MethodDesc method)
{
Debug.Assert(method.IsIntrinsic);
MetadataType owningType = method.OwningType as MetadataType;
if (owningType == null)
{
return(null);
}
switch (owningType.Name)
{
case "Interlocked":
{
if (owningType.Namespace == "System.Threading")
{
return(InterlockedIntrinsics.EmitIL(method));
}
}
break;
case "Unsafe":
{
if (owningType.Namespace == "Internal.Runtime.CompilerServices")
{
return(UnsafeIntrinsics.EmitIL(method));
}
}
break;
case "MemoryMarshal":
{
if (owningType.Namespace == "System.Runtime.InteropServices")
{
return(MemoryMarshalIntrinsics.EmitIL(method));
}
}
break;
case "Volatile":
{
if (owningType.Namespace == "System.Threading")
{
return(VolatileIntrinsics.EmitIL(method));
}
}
break;
case "Debug":
{
if (owningType.Namespace == "System.Diagnostics" && method.Name == "DebugBreak")
{
return(new ILStubMethodIL(method, new byte[] { (byte)ILOpcode.break_, (byte)ILOpcode.ret }, Array.Empty <LocalVariableDefinition>(), null));
}
}
break;
case "EETypePtr":
{
if (owningType.Namespace == "System" && method.Name == "EETypePtrOf")
{
return(EETypePtrOfIntrinsic.EmitIL(method));
}
}
break;
case "RuntimeAugments":
{
if (owningType.Namespace == "Internal.Runtime.Augments" && method.Name == "GetCanonType")
{
return(GetCanonTypeIntrinsic.EmitIL(method));
}
}
break;
case "EEType":
{
if (owningType.Namespace == "Internal.Runtime" && method.Name == "get_SupportsRelativePointers")
{
ILOpcode value = method.Context.Target.SupportsRelativePointers ?
ILOpcode.ldc_i4_1 : ILOpcode.ldc_i4_0;
return(new ILStubMethodIL(method, new byte[] { (byte)value, (byte)ILOpcode.ret }, Array.Empty <LocalVariableDefinition>(), null));
}
}
break;
}
return(null);
}