void CompiledCode::Info::mark(Object* obj, memory::ObjectMark& mark) {
auto_mark(obj, mark);
mark_inliners(obj, mark);
CompiledCode* code = as<CompiledCode>(obj);
if(!code->machine_code()) return;
MachineCode* mcode = code->machine_code();
mcode->set_mark();
for(int i = 0; i < MachineCode::cMaxSpecializations; i++) {
// TODO: JIT
}
for(size_t i = 0; i < mcode->references_count(); i++) {
if(size_t ip = mcode->references()[i]) {
Object* ref = reinterpret_cast<Object*>(mcode->opcodes[ip]);
if(Object* updated_ref = mark.call(ref)) {
mcode->opcodes[ip] = reinterpret_cast<intptr_t>(updated_ref);
mark.just_set(code, updated_ref);
}
}
}
}
void PolyInlineCache::Info::mark(Object* obj, memory::ObjectMark& mark) {
auto_mark(obj, mark);
PolyInlineCache* cache = static_cast<PolyInlineCache*>(obj);
for(int i = 0; i < cTrackedICHits; ++i) {
InlineCacheEntry* ice = cache->entries_[i];
if(ice) {
if(InlineCacheEntry* updated = static_cast<InlineCacheEntry*>(mark.call(ice))) {
cache->entries_[i] = updated;
mark.just_set(cache, updated);
}
}
}
}
void Executable::Info::mark_inliners(Object* obj, memory::ObjectMark& mark) {
Executable* exc = static_cast<Executable*>(obj);
if(!exc->inliners() || exc->inliners() == (Inliners*)cNil) return;
Inliners* inl = exc->inliners();
inl->set_mark();
// std::cout << "Marking inliners: " << inl->inliners().size() << "\n";
for(std::vector<CompiledCode*>::iterator i = inl->inliners().begin();
i != inl->inliners().end();
++i) {
CompiledCode* code = *i;
if(Object* tmp = mark.call(code)) {
*i = static_cast<CompiledCode*>(tmp);
mark.just_set(obj, tmp);
}
}
}
void CallSite::Info::mark(Object* obj, memory::ObjectMark& mark) {
auto_mark(obj, mark);
CallSite* call_site = as<CallSite>(obj);
// TODO: pass State into GC!
VM* vm = VM::current();
if(Cache* cache = call_site->cache()) {
// Disable if call site is unstable for caching
if(cache->evictions() > max_evictions) {
call_site->set_cache(nullptr);
call_site->executor(CallSite::dispatch);
call_site->delete_cache(cache);
vm->metrics()->inline_cache_disabled++;
} else {
// Campact and possibly reset cache
Cache* new_cache = cache->compact();
if(new_cache != cache) {
call_site->set_cache(new_cache);
call_site->delete_cache(cache);
if(new_cache) {
vm->metrics()->inline_cache_count++;
} else {
call_site->executor(CallSite::dispatch_once);
}
}
}
}
// Do not merge conditionals, we may have set _cache_ to nullptr above.
if(Cache* cache = call_site->cache()) {
// Re-order more used cache entries to the front
cache->reorder();
// Mark caches.
for(int32_t i = 0; i < cache->size(); i++) {
Cache::Entry* entry = cache->entries(i);
if(Object* ref = mark.call(entry->receiver_class())) {
entry->receiver_class(as<Class>(ref));
mark.just_set(call_site, ref);
}
if(Object* ref = mark.call(entry->prediction())) {
entry->prediction(as<Prediction>(ref));
mark.just_set(call_site, ref);
}
if(Object* ref = mark.call(entry->module())) {
entry->module(as<Module>(ref));
mark.just_set(call_site, ref);
}
if(Object* ref = mark.call(entry->executable())) {
entry->executable(as<Executable>(ref));
mark.just_set(call_site, ref);
}
if(vm->shared.profiler()->collecting_p()) {
if(CompiledCode* code = try_as<CompiledCode>(entry->executable())) {
if(code->machine_code()->sample_count > vm->shared.profiler()->sample_min()) {
vm->shared.profiler()->add_entry(call_site->serial(), call_site->ip(),
code->machine_code()->serial(), entry->hits(),
entry->receiver_class()->name(), entry->module()->name());
}
}
}
}
}
// Clear dead list
call_site->clear_dead_list();
}