private RawItemProfile<ResolvedJavaType> getRawTypeProfile(
HotSpotMethodData data, int position) {
int typeProfileWidth = config.typeProfileWidth;
ResolvedJavaType[] types = new ResolvedJavaType[typeProfileWidth];
long[] counts = new long[typeProfileWidth];
long totalCount = 0;
int entries = 0;
outer:
for (int i = 0; i < typeProfileWidth; i++) {
long receiverKlass = data.readWord(position, getTypeOffset(i));
if (receiverKlass != 0) {
ResolvedJavaType klass = HotSpotResolvedObjectType.fromMetaspaceKlass(receiverKlass);
long count = data.readUnsignedInt(position, getTypeCountOffset(i));
/*
* Because of races in the profile collection machinery it's possible for a
* class to appear multiple times so merge them to make the profile look
* rational.
*/
for (int j = 0; j < entries; j++) {
if (types[j].equals(klass)) {
totalCount += count;
counts[j] += count;
continue outer;
}
}
types[entries] = klass;
totalCount += count;
counts[entries] = count;
entries++;
}
}
totalCount += getTypesNotRecordedExecutionCount(data, position);
return new RawItemProfile<>(entries, types, counts, totalCount);
}
