Esempio n. 1
0
// Translate a bci to its corresponding data, or NULL.
ciProfileData* ciMethodData::bci_to_data(int bci, ciMethod* m) {
  // If m is not NULL we look for a SpeculativeTrapData entry
  if (m == NULL) {
    ciProfileData* data = data_before(bci);
    for ( ; is_valid(data); data = next_data(data)) {
      if (data->bci() == bci) {
        set_hint_di(dp_to_di(data->dp()));
        return data;
      } else if (data->bci() > bci) {
        break;
      }
    }
  }
  bool two_free_slots = false;
  ciProfileData* result = bci_to_extra_data(bci, m, two_free_slots);
  if (result != NULL) {
    return result;
  }
  if (m != NULL && !two_free_slots) {
    // We were looking for a SpeculativeTrapData entry we didn't
    // find. Room is not available for more SpeculativeTrapData
    // entries, look in the non SpeculativeTrapData entries.
    return bci_to_data(bci, NULL);
  }
  return NULL;
}
Esempio n. 2
0
// Translate a bci to its corresponding data, or NULL.
ciProfileData* ciMethodData::bci_to_data(int bci) {
  ciProfileData* data = data_before(bci);
  for ( ; is_valid(data); data = next_data(data)) {
    if (data->bci() == bci) {
      set_hint_di(dp_to_di(data->dp()));
      return data;
    } else if (data->bci() > bci) {
      break;
    }
  }
  // bci_to_extra_data(bci) ...
  DataLayout* dp  = data_layout_at(data_size());
  DataLayout* end = data_layout_at(data_size() + extra_data_size());
  for (; dp < end; dp = methodDataOopDesc::next_extra(dp)) {
    if (dp->tag() == DataLayout::no_tag) {
      _saw_free_extra_data = true;  // observed an empty slot (common case)
      return NULL;
    }
    if (dp->tag() == DataLayout::arg_info_data_tag) {
      break; // ArgInfoData is at the end of extra data section.
    }
    if (dp->bci() == bci) {
      assert(dp->tag() == DataLayout::bit_data_tag, "sane");
      return new ciBitData(dp);
    }
  }
  return NULL;
}
Esempio n. 3
0
// Translate a bci to its corresponding data, or NULL.
ProfileData* methodDataOopDesc::bci_to_data(int bci) {
  ProfileData* data = data_before(bci);
  for ( ; is_valid(data); data = next_data(data)) {
    if (data->bci() == bci) {
      set_hint_di(dp_to_di(data->dp()));
      return data;
    } else if (data->bci() > bci) {
      break;
    }
  }
  return bci_to_extra_data(bci, false);
}
Esempio n. 4
0
// Translate a bci to its corresponding data index (di).
address methodDataOopDesc::bci_to_dp(int bci) {
  ResourceMark rm;
  ProfileData* data = data_before(bci);
  ProfileData* prev = NULL;
  for ( ; is_valid(data); data = next_data(data)) {
    if (data->bci() >= bci) {
      if (data->bci() == bci)  set_hint_di(dp_to_di(data->dp()));
      else if (prev != NULL)   set_hint_di(dp_to_di(prev->dp()));
      return data->dp();
    }
    prev = data;
  }
  return (address)limit_data_position();
}