// 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();
}
// 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;
}
// 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;
}
// 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);
}