private static bool SchemaMergesItemsWithDifferentOtherFields(PgoInstrumentationKind kind)
{
switch (kind)
{
//
default:
// All non-specified kinds are not distinguishable by Other field
return(false);
}
}
public int Compare(PgoSchemaElem x, PgoSchemaElem y)
{
if (x.ILOffset != y.ILOffset)
{
return(x.ILOffset.CompareTo(y.ILOffset));
}
PgoInstrumentationKind xdescr = x.InstrumentationKind & PgoInstrumentationKind.DescriptorMask;
PgoInstrumentationKind ydescr = y.InstrumentationKind & PgoInstrumentationKind.DescriptorMask;
if (xdescr != ydescr)
{
return(xdescr.CompareTo(ydescr));
}
// We usually merge the Other field, except for edges, where we take care only to merge
// edges with equal ILOffset _and_ equal Other fields.
if ((x.InstrumentationKind == PgoInstrumentationKind.EdgeIntCount || x.InstrumentationKind == PgoInstrumentationKind.EdgeLongCount) &&
x.Other != y.Other)
{
return(x.Other.CompareTo(y.Other));
}
return(0);
}
public static void EncodePgoData <TType, TMethod>(IEnumerable <PgoSchemaElem> schemas, IPgoEncodedValueEmitter <TType, TMethod> valueEmitter, bool emitAllElementsUnconditionally)
{
PgoSchemaElem prevSchema = default(PgoSchemaElem);
TType prevEmittedType = default(TType);
TMethod prevEmittedMethod = default(TMethod);
long prevEmittedIntData = 0;
foreach (PgoSchemaElem schema in schemas)
{
int ilOffsetDiff = schema.ILOffset - prevSchema.ILOffset;
int OtherDiff = schema.Other - prevSchema.Other;
int CountDiff = schema.Count - prevSchema.Count;
int TypeDiff = (int)schema.InstrumentationKind - (int)prevSchema.InstrumentationKind;
InstrumentationDataProcessingState modifyMask = (InstrumentationDataProcessingState)0;
if (!emitAllElementsUnconditionally)
{
if (ilOffsetDiff != 0)
{
modifyMask = modifyMask | InstrumentationDataProcessingState.ILOffset;
}
if (TypeDiff != 0)
{
modifyMask = modifyMask | InstrumentationDataProcessingState.Type;
}
if (CountDiff != 0)
{
modifyMask = modifyMask | InstrumentationDataProcessingState.Count;
}
if (OtherDiff != 0)
{
modifyMask = modifyMask | InstrumentationDataProcessingState.Other;
}
}
else
{
modifyMask = InstrumentationDataProcessingState.ILOffset |
InstrumentationDataProcessingState.Type |
InstrumentationDataProcessingState.Count |
InstrumentationDataProcessingState.Other;
}
Debug.Assert(modifyMask != InstrumentationDataProcessingState.Done);
valueEmitter.EmitLong((long)modifyMask, 0);
if ((modifyMask & InstrumentationDataProcessingState.ILOffset) == InstrumentationDataProcessingState.ILOffset)
{
valueEmitter.EmitLong(schema.ILOffset, prevSchema.ILOffset);
}
if ((modifyMask & InstrumentationDataProcessingState.Type) == InstrumentationDataProcessingState.Type)
{
valueEmitter.EmitLong((long)schema.InstrumentationKind, (long)prevSchema.InstrumentationKind);
}
if ((modifyMask & InstrumentationDataProcessingState.Count) == InstrumentationDataProcessingState.Count)
{
valueEmitter.EmitLong(schema.Count, prevSchema.Count);
}
if ((modifyMask & InstrumentationDataProcessingState.Other) == InstrumentationDataProcessingState.Other)
{
valueEmitter.EmitLong(schema.Other, prevSchema.Other);
}
for (int i = 0; i < schema.Count; i++)
{
PgoInstrumentationKind marshal = schema.InstrumentationKind & PgoInstrumentationKind.MarshalMask;
switch (marshal)
{
case PgoInstrumentationKind.None:
break;
case PgoInstrumentationKind.FourByte:
{
long valueToEmit;
if (schema.Count == 1)
{
valueToEmit = schema.DataLong;
}
else
{
valueToEmit = ((int[])schema.DataObject)[i];
}
valueEmitter.EmitLong(valueToEmit, prevEmittedIntData);
prevEmittedIntData = valueToEmit;
break;
}
case PgoInstrumentationKind.EightByte:
{
long valueToEmit;
if (schema.Count == 1)
{
valueToEmit = schema.DataLong;
}
else
{
valueToEmit = ((long[])schema.DataObject)[i];
}
valueEmitter.EmitLong(valueToEmit, prevEmittedIntData);
prevEmittedIntData = valueToEmit;
break;
}
case PgoInstrumentationKind.TypeHandle:
{
TType typeToEmit = ((TType[])schema.DataObject)[i];
valueEmitter.EmitType(typeToEmit, prevEmittedType);
prevEmittedType = typeToEmit;
break;
}
case PgoInstrumentationKind.MethodHandle:
{
TMethod methodToEmit = ((TMethod[])schema.DataObject)[i];
valueEmitter.EmitMethod(methodToEmit, prevEmittedMethod);
prevEmittedMethod = methodToEmit;
break;
}
default:
throw new ArgumentException("Unknown schema marshal " + marshal);
}
}
prevSchema = schema;
}
// Emit a "done" schema
if (!valueEmitter.EmitDone())
{
// If EmitDone returns true, no further data needs to be encoded.
// Otherwise, emit a "Done" schema
valueEmitter.EmitLong((long)InstrumentationDataProcessingState.Type, 0);
valueEmitter.EmitLong((long)PgoInstrumentationKind.Done, (long)prevSchema.InstrumentationKind);
}
}
