graal-jvmci-8: src/share/vm/oops/constantPoolOop.cpp comparison

comparison src/share/vm/oops/constantPoolOop.cpp @ 2177:3582bf76420e

6990754: Use native memory and reference counting to implement SymbolTable Summary: move symbols from permgen into C heap and reference count them Reviewed-by: never, acorn, jmasa, stefank

author	coleenp
date	Thu, 27 Jan 2011 16:11:27 -0800
parents	dad31fc330cd
children	fbbeec6dad2d

comparison

equal deleted inserted replaced

-:27e4ea99855d
+:3582bf76420e
 assert(false, "failed to cmpxchg flags");
 _flags |= (1 << (int)fb);     // better than nothing
 }
 klassOop constantPoolOopDesc::klass_at_impl(constantPoolHandle this_oop, int which, TRAPS) {
-// A resolved constantPool entry will contain a klassOop, otherwise a symbolOop.
+// A resolved constantPool entry will contain a klassOop, otherwise a Symbol*.
 // It is not safe to rely on the tag bit's here, since we don't have a lock, and the entry and
 // tag is not updated atomicly.
-oop entry = *(this_oop->obj_at_addr(which));
+CPSlot entry = this_oop->slot_at(which);
-if (entry->is_klass()) {
+if (entry.is_oop()) {
+assert(entry.get_oop()->is_klass(), "must be");
 // Already resolved - return entry.
-return (klassOop)entry;
+return (klassOop)entry.get_oop();
 }
 // Acquire lock on constant oop while doing update. After we get the lock, we check if another object
 // already has updated the object
 assert(THREAD->is_Java_thread(), "must be a Java thread");
 bool do_resolve = false;
 bool in_error = false;
-symbolHandle name;
+Symbol* name = NULL;
 Handle       loader;
 { ObjectLocker ol(this_oop, THREAD);
 if (this_oop->tag_at(which).is_unresolved_klass()) {
 if (this_oop->tag_at(which).is_unresolved_klass_in_error()) {
 in_error = true;
 } else {
 do_resolve = true;
-name   = symbolHandle(THREAD, this_oop->unresolved_klass_at(which));
+name   = this_oop->unresolved_klass_at(which);
 loader = Handle(THREAD, instanceKlass::cast(this_oop->pool_holder())->class_loader());
 }
 }
 } // unlocking constantPool
 // The original attempt to resolve this constant pool entry failed so find the
 // original error and throw it again (JVMS 5.4.3).
 if (in_error) {
-symbolOop error = SystemDictionary::find_resolution_error(this_oop, which);
+Symbol* error = SystemDictionary::find_resolution_error(this_oop, which);
-guarantee(error != (symbolOop)NULL, "tag mismatch with resolution error table");
+guarantee(error != (Symbol*)NULL, "tag mismatch with resolution error table");
 ResourceMark rm;
 // exception text will be the class name
 const char* className = this_oop->unresolved_klass_at(which)->as_C_string();
 THROW_MSG_0(error, className);
 }
 // Failed to resolve class. We must record the errors so that subsequent attempts
 // to resolve this constant pool entry fail with the same error (JVMS 5.4.3).
 if (HAS_PENDING_EXCEPTION) {
 ResourceMark rm;
-symbolHandle error(PENDING_EXCEPTION->klass()->klass_part()->name());
+Symbol* error = PENDING_EXCEPTION->klass()->klass_part()->name();
 bool throw_orig_error = false;
 {
 ObjectLocker ol (this_oop, THREAD);
 // some other thread has beaten us and has resolved the class.
 if (this_oop->tag_at(which).is_klass()) {
 CLEAR_PENDING_EXCEPTION;
 entry = this_oop->resolved_klass_at(which);
-return (klassOop)entry;
+return (klassOop)entry.get_oop();
 }
 if (!PENDING_EXCEPTION->
 is_a(SystemDictionary::LinkageError_klass())) {
 // Just throw the exception and don't prevent these classes from
 else if (!this_oop->tag_at(which).is_unresolved_klass_in_error()) {
 SystemDictionary::add_resolution_error(this_oop, which, error);
 this_oop->tag_at_put(which, JVM_CONSTANT_UnresolvedClassInError);
 } else {
 // some other thread has put the class in error state.
-error = symbolHandle(SystemDictionary::find_resolution_error(this_oop, which));
+error = SystemDictionary::find_resolution_error(this_oop, which);
-assert(!error.is_null(), "checking");
+assert(error != NULL, "checking");
 throw_orig_error = true;
 }
 } // unlocked
 if (throw_orig_error) {
 if (JavaThread::current()->has_last_Java_frame()) {
 // try to identify the method which called this function.
 vframeStream vfst(JavaThread::current());
 if (!vfst.at_end()) {
 line_number = vfst.method()->line_number_from_bci(vfst.bci());
-symbolOop s = instanceKlass::cast(vfst.method()->method_holder())->source_file_name();
+Symbol* s = instanceKlass::cast(vfst.method()->method_holder())->source_file_name();
 if (s != NULL) {
 source_file = s->as_C_string();
 }
 }
 }
 }
 }
 }
 entry = this_oop->resolved_klass_at(which);
-assert(entry->is_klass(), "must be resolved at this point");
+assert(entry.is_oop() && entry.get_oop()->is_klass(), "must be resolved at this point");
-return (klassOop)entry;
+return (klassOop)entry.get_oop();
 }
 // Does not update constantPoolOop - to avoid any exception throwing. Used
 // by compiler and exception handling.  Also used to avoid classloads for
 // instanceof operations. Returns NULL if the class has not been loaded or
 // if the verification of constant pool failed
 klassOop constantPoolOopDesc::klass_at_if_loaded(constantPoolHandle this_oop, int which) {
-oop entry = *this_oop->obj_at_addr(which);
+CPSlot entry = this_oop->slot_at(which);
-if (entry->is_klass()) {
+if (entry.is_oop()) {
-return (klassOop)entry;
+assert(entry.get_oop()->is_klass(), "must be");
+return (klassOop)entry.get_oop();
 } else {
-assert(entry->is_symbol(), "must be either symbol or klass");
+assert(entry.is_metadata(), "must be either symbol or klass");
 Thread *thread = Thread::current();
-symbolHandle name (thread, (symbolOop)entry);
+Symbol* name = entry.get_symbol();
 oop loader = instanceKlass::cast(this_oop->pool_holder())->class_loader();
 oop protection_domain = Klass::cast(this_oop->pool_holder())->protection_domain();
 Handle h_prot (thread, protection_domain);
 Handle h_loader (thread, loader);
 klassOop k = SystemDictionary::find(name, h_loader, h_prot, thread);
 // in the constant pool - but still performs the validations tests. Must be used
 // in a pre-parse of the compiler - to determine what it can do and not do.
 // Note: We cannot update the ConstantPool from the vm_thread.
 klassOop constantPoolOopDesc::klass_ref_at_if_loaded_check(constantPoolHandle this_oop, int index, TRAPS) {
 int which = this_oop->klass_ref_index_at(index);
-oop entry = *this_oop->obj_at_addr(which);
+CPSlot entry = this_oop->slot_at(which);
-if (entry->is_klass()) {
+if (entry.is_oop()) {
-return (klassOop)entry;
+assert(entry.get_oop()->is_klass(), "must be");
+return (klassOop)entry.get_oop();
 } else {
-assert(entry->is_symbol(), "must be either symbol or klass");
+assert(entry.is_metadata(), "must be either symbol or klass");
-symbolHandle name (THREAD, (symbolOop)entry);
+Symbol*  name  = entry.get_symbol();
 oop loader = instanceKlass::cast(this_oop->pool_holder())->class_loader();
 oop protection_domain = Klass::cast(this_oop->pool_holder())->protection_domain();
 Handle h_loader(THREAD, loader);
 Handle h_prot  (THREAD, protection_domain);
 KlassHandle k(THREAD, SystemDictionary::find(name, h_loader, h_prot, THREAD));
 return k();
 }
 }
-symbolOop constantPoolOopDesc::impl_name_ref_at(int which, bool uncached) {
+Symbol* constantPoolOopDesc::impl_name_ref_at(int which, bool uncached) {
 int name_index = name_ref_index_at(impl_name_and_type_ref_index_at(which, uncached));
 return symbol_at(name_index);
 }
-symbolOop constantPoolOopDesc::impl_signature_ref_at(int which, bool uncached) {
+Symbol* constantPoolOopDesc::impl_signature_ref_at(int which, bool uncached) {
 int signature_index = signature_ref_index_at(impl_name_and_type_ref_index_at(which, uncached));
 return symbol_at(signature_index);
 }
 klassOop constantPoolOopDesc::klass_ref_at(int which, TRAPS) {
 return klass_at(klass_ref_index_at(which), CHECK_NULL);
 }
-symbolOop constantPoolOopDesc::klass_name_at(int which) {
+Symbol* constantPoolOopDesc::klass_name_at(int which) {
 assert(tag_at(which).is_unresolved_klass() || tag_at(which).is_klass(),
 "Corrupted constant pool");
-// A resolved constantPool entry will contain a klassOop, otherwise a symbolOop.
+// A resolved constantPool entry will contain a klassOop, otherwise a Symbol*.
 // It is not safe to rely on the tag bit's here, since we don't have a lock, and the entry and
 // tag is not updated atomicly.
-oop entry = *(obj_at_addr(which));
+CPSlot entry = slot_at(which);
-if (entry->is_klass()) {
+if (entry.is_oop()) {
 // Already resolved - return entry's name.
-return klassOop(entry)->klass_part()->name();
+assert(entry.get_oop()->is_klass(), "must be");
+return klassOop(entry.get_oop())->klass_part()->name();
 } else {
-assert(entry->is_symbol(), "must be either symbol or klass");
+assert(entry.is_metadata(), "must be either symbol or klass");
-return (symbolOop)entry;
+return entry.get_symbol();
 }
 }
-symbolOop constantPoolOopDesc::klass_ref_at_noresolve(int which) {
+Symbol* constantPoolOopDesc::klass_ref_at_noresolve(int which) {
 jint ref_index = klass_ref_index_at(which);
 return klass_at_noresolve(ref_index);
 }
-symbolOop constantPoolOopDesc::uncached_klass_ref_at_noresolve(int which) {
+Symbol* constantPoolOopDesc::uncached_klass_ref_at_noresolve(int which) {
 jint ref_index = uncached_klass_ref_index_at(which);
 return klass_at_noresolve(ref_index);
 }
 char* constantPoolOopDesc::string_at_noresolve(int which) {
 // Test entry type in case string is resolved while in here.
-oop entry = *(obj_at_addr(which));
+CPSlot entry = slot_at(which);
-if (entry->is_symbol()) {
+if (entry.is_metadata()) {
-return ((symbolOop)entry)->as_C_string();
+return (entry.get_symbol())->as_C_string();
-} else if (java_lang_String::is_instance(entry)) {
+} else if (java_lang_String::is_instance(entry.get_oop())) {
-return java_lang_String::as_utf8_string(entry);
+return java_lang_String::as_utf8_string(entry.get_oop());
 } else {
 return (char*)"<pseudo-string>";
 }
 }
 case JVM_CONSTANT_MethodHandle:
 {
 int ref_kind                 = this_oop->method_handle_ref_kind_at(index);
 int callee_index             = this_oop->method_handle_klass_index_at(index);
-symbolHandle name(THREAD,      this_oop->method_handle_name_ref_at(index));
+Symbol*  name =      this_oop->method_handle_name_ref_at(index);
-symbolHandle signature(THREAD, this_oop->method_handle_signature_ref_at(index));
+Symbol*  signature = this_oop->method_handle_signature_ref_at(index);
 if (PrintMiscellaneous)
 tty->print_cr("resolve JVM_CONSTANT_MethodHandle:%d [%d/%d/%d] %s.%s",
 ref_kind, index, this_oop->method_handle_index_at(index),
 callee_index, name->as_C_string(), signature->as_C_string());
 KlassHandle callee;
 break;
 }
 case JVM_CONSTANT_MethodType:
 {
-symbolHandle signature(THREAD, this_oop->method_type_signature_at(index));
+Symbol*  signature = this_oop->method_type_signature_at(index);
 if (PrintMiscellaneous)
 tty->print_cr("resolve JVM_CONSTANT_MethodType [%d/%d] %s",
 index, this_oop->method_type_index_at(index),
 signature->as_C_string());
 KlassHandle klass(THREAD, this_oop->pool_holder());
 return result_oop;
 }
 }
 oop constantPoolOopDesc::string_at_impl(constantPoolHandle this_oop, int which, TRAPS) {
-oop entry = *(this_oop->obj_at_addr(which));
+oop str = NULL;
-if (entry->is_symbol()) {
+CPSlot entry = this_oop->slot_at(which);
+if (entry.is_metadata()) {
 ObjectLocker ol(this_oop, THREAD);
 if (this_oop->tag_at(which).is_unresolved_string()) {
 // Intern string
-symbolOop sym = this_oop->unresolved_string_at(which);
+Symbol* sym = this_oop->unresolved_string_at(which);
-entry = StringTable::intern(sym, CHECK_(constantPoolOop(NULL)));
+str = StringTable::intern(sym, CHECK_(constantPoolOop(NULL)));
-this_oop->string_at_put(which, entry);
+this_oop->string_at_put(which, str);
 } else {
 // Another thread beat us and interned string, read string from constant pool
-entry = this_oop->resolved_string_at(which);
+str = this_oop->resolved_string_at(which);
 }
-}
+} else {
-assert(java_lang_String::is_instance(entry), "must be string");
+str = entry.get_oop();
-return entry;
+}
+assert(java_lang_String::is_instance(str), "must be string");
+return str;
 }
 bool constantPoolOopDesc::is_pseudo_string_at(int which) {
-oop entry = *(obj_at_addr(which));
+CPSlot entry = slot_at(which);
-if (entry->is_symbol())
+if (entry.is_metadata())
 // Not yet resolved, but it will resolve to a string.
 return false;
-else if (java_lang_String::is_instance(entry))
+else if (java_lang_String::is_instance(entry.get_oop()))
 return false; // actually, it might be a non-interned or non-perm string
 else
 // truly pseudo
 return true;
 }
 bool constantPoolOopDesc::klass_name_at_matches(instanceKlassHandle k,
 int which) {
-// Names are interned, so we can compare symbolOops directly
+// Names are interned, so we can compare Symbol*s directly
-symbolOop cp_name = klass_name_at(which);
+Symbol* cp_name = klass_name_at(which);
 return (cp_name == k->name());
 }
 int constantPoolOopDesc::pre_resolve_shared_klasses(TRAPS) {
 ResourceMark rm;
 int count = 0;
 for (int index = 1; index < tags()->length(); index++) { // Index 0 is unused
 if (tag_at(index).is_unresolved_string()) {
 // Intern string
-symbolOop sym = unresolved_string_at(index);
+Symbol* sym = unresolved_string_at(index);
 oop entry = StringTable::intern(sym, CHECK_(-1));
 string_at_put(index, entry);
 }
 }
 return count;
 }
+// Iterate over symbols and decrement ones which are Symbol*s.
+// This is done during GC so do not need to lock constantPool unless we
+// have per-thread safepoints.
+// Only decrement the UTF8 symbols. Unresolved classes and strings point to
+// these symbols but didn't increment the reference count.
+void constantPoolOopDesc::unreference_symbols() {
+for (int index = 1; index < length(); index++) { // Index 0 is unused
+constantTag tag = tag_at(index);
+if (tag.is_symbol()) {
+symbol_at(index)->decrement_refcount();
+}
+}
+}
 // Iterate over symbols which are used as class, field, method names and
 // signatures (in preparation for writing to the shared archive).
-void constantPoolOopDesc::shared_symbols_iterate(OopClosure* closure) {
+void constantPoolOopDesc::shared_symbols_iterate(SymbolClosure* closure) {
 for (int index = 1; index < length(); index++) { // Index 0 is unused
 switch (tag_at(index).value()) {
 case JVM_CONSTANT_UnresolvedClass:
-closure->do_oop(obj_at_addr(index));
+case JVM_CONSTANT_UnresolvedString:
+case JVM_CONSTANT_Utf8:
+assert(slot_at(index).is_metadata(), "must be symbol");
+closure->do_symbol(symbol_at_addr(index));
 break;
 case JVM_CONSTANT_NameAndType:
 {
 int i = *int_at_addr(index);
-closure->do_oop(obj_at_addr((unsigned)i >> 16));
+closure->do_symbol(symbol_at_addr((unsigned)i >> 16));
-closure->do_oop(obj_at_addr((unsigned)i & 0xffff));
+closure->do_symbol(symbol_at_addr((unsigned)i & 0xffff));
 }
 break;
 case JVM_CONSTANT_Class:
 case JVM_CONSTANT_InterfaceMethodref:
 case JVM_CONSTANT_String:
 // Do nothing!  Not a symbol.
 break;
-case JVM_CONSTANT_UnresolvedString:
-case JVM_CONSTANT_Utf8:
-// These constants are symbols, but unless these symbols are
-// actually to be used for something, we don't want to mark them.
-break;
 case JVM_CONSTANT_Long:
 case JVM_CONSTANT_Double:
 // Do nothing!  Not an oop. (But takes two pool entries.)
 ++index;
 break;
 // Do nothing!  Not an oop.
 // These constant types do not reference symbols at this point.
 break;
 case JVM_CONSTANT_String:
-closure->do_oop(obj_at_addr(index));
+closure->do_oop(obj_at_addr_raw(index));
 break;
 case JVM_CONSTANT_UnresolvedString:
 case JVM_CONSTANT_Utf8:
 // These constants are symbols, but unless these symbols are
 }
 } break;
 case JVM_CONSTANT_UnresolvedClass:
 {
-symbolOop k1 = unresolved_klass_at(index1);
+Symbol* k1 = unresolved_klass_at(index1);
-symbolOop k2 = cp2->unresolved_klass_at(index2);
+Symbol* k2 = cp2->unresolved_klass_at(index2);
 if (k1 == k2) {
 return true;
 }
 } break;
 }
 } break;
 case JVM_CONSTANT_UnresolvedString:
 {
-symbolOop s1 = unresolved_string_at(index1);
+Symbol* s1 = unresolved_string_at(index1);
-symbolOop s2 = cp2->unresolved_string_at(index2);
+Symbol* s2 = cp2->unresolved_string_at(index2);
 if (s1 == s2) {
 return true;
 }
 } break;
 case JVM_CONSTANT_Utf8:
 {
-symbolOop s1 = symbol_at(index1);
+Symbol* s1 = symbol_at(index1);
-symbolOop s2 = cp2->symbol_at(index2);
+Symbol* s2 = cp2->symbol_at(index2);
 if (s1 == s2) {
 return true;
 }
 } break;
 to_cp->string_index_at_put(to_i, si);
 } break;
 case JVM_CONSTANT_UnresolvedClass:
 {
-symbolOop k = from_cp->unresolved_klass_at(from_i);
+Symbol* k = from_cp->unresolved_klass_at(from_i);
 to_cp->unresolved_klass_at_put(to_i, k);
 } break;
 case JVM_CONSTANT_UnresolvedClassInError:
 {
-symbolOop k = from_cp->unresolved_klass_at(from_i);
+Symbol* k = from_cp->unresolved_klass_at(from_i);
 to_cp->unresolved_klass_at_put(to_i, k);
 to_cp->tag_at_put(to_i, JVM_CONSTANT_UnresolvedClassInError);
 } break;
 case JVM_CONSTANT_UnresolvedString:
 {
-symbolOop s = from_cp->unresolved_string_at(from_i);
+Symbol* s = from_cp->unresolved_string_at(from_i);
 to_cp->unresolved_string_at_put(to_i, s);
 } break;
 case JVM_CONSTANT_Utf8:
 {
-symbolOop s = from_cp->symbol_at(from_i);
+Symbol* s = from_cp->symbol_at(from_i);
 to_cp->symbol_at_put(to_i, s);
+// This constantPool has the same lifetime as the original, so don't
+// increase reference counts for the copy.
 } break;
 case JVM_CONSTANT_MethodType:
 {
 jint k = from_cp->method_type_index_at(from_i);
 u2 tag = tag_at(idx).value();
 size += cpool_entry_size(idx);
 switch(tag) {
 case JVM_CONSTANT_Utf8: {
-symbolOop sym = symbol_at(idx);
+Symbol* sym = symbol_at(idx);
 symmap->add_entry(sym, idx);
 DBG(printf("adding symbol entry %s = %d\n", sym->as_utf8(), idx));
 break;
 }
 case JVM_CONSTANT_Class:
 case JVM_CONSTANT_UnresolvedClass:
 case JVM_CONSTANT_UnresolvedClassInError: {
-symbolOop sym = klass_name_at(idx);
+Symbol* sym = klass_name_at(idx);
 classmap->add_entry(sym, idx);
 DBG(printf("adding class entry %s = %d\n", sym->as_utf8(), idx));
 break;
 }
 case JVM_CONSTANT_Long:
 assert(false, "Wrong constant pool tag: JVM_CONSTANT_Unicode");
 DBG(printf("JVM_CONSTANT_Unicode"));
 break;
 }
 case JVM_CONSTANT_Utf8: {
-symbolOop sym = symbol_at(idx);
+Symbol* sym = symbol_at(idx);
 char*     str = sym->as_utf8();
 // Warning! It's crashing on x86 with len = sym->utf8_length()
 int       len = (int) strlen(str);
 Bytes::put_Java_u2((address) (bytes+1), (u2) len);
 for (int i = 0; i < len; i++) {
 }
 case JVM_CONSTANT_Class:
 case JVM_CONSTANT_UnresolvedClass:
 case JVM_CONSTANT_UnresolvedClassInError: {
 *bytes = JVM_CONSTANT_Class;
-symbolOop sym = klass_name_at(idx);
+Symbol* sym = klass_name_at(idx);
 idx1 = tbl->symbol_to_value(sym);
 assert(idx1 != 0, "Have not found a hashtable entry");
 Bytes::put_Java_u2((address) (bytes+1), idx1);
 DBG(printf("JVM_CONSTANT_Class: idx=#%03hd, %s", idx1, sym->as_utf8()));
 break;
 }
 case JVM_CONSTANT_String: {
 unsigned int hash;
 char *str = string_at_noresolve(idx);
-symbolOop sym = SymbolTable::lookup_only(str, (int) strlen(str), hash);
+TempNewSymbol sym = SymbolTable::lookup_only(str, (int) strlen(str), hash);
 if (sym == NULL) {
 // sym can be NULL if string refers to incorrectly encoded JVM_CONSTANT_Utf8
 // this can happen with JVM TI; see CR 6839599 for more details
-oop string = *(obj_at_addr(idx));
+oop string = *(obj_at_addr_raw(idx));
 assert(java_lang_String::is_instance(string),"Not a String");
 DBG(printf("Error #%03hd tag=%03hd\n", idx, tag));
 idx1 = 0;
 for (int j = 0; j < tbl->table_size() && idx1 == 0; j++) {
 for (SymbolHashMapEntry* cur = tbl->bucket(j); cur != NULL; cur = cur->next()) {
 int length;
-sym = cur->symbol();
+Symbol* s = cur->symbol();
-jchar* chars = sym->as_unicode(length);
+jchar* chars = s->as_unicode(length);
 if (java_lang_String::equals(string, chars, length)) {
 idx1 = cur->value();
 DBG(printf("Index found: %d\n",idx1));
 break;
 }
 DBG(printf("JVM_CONSTANT_String: idx=#%03hd, %s", idx1, str));
 break;
 }
 case JVM_CONSTANT_UnresolvedString: {
 *bytes = JVM_CONSTANT_String;
-symbolOop sym = unresolved_string_at(idx);
+Symbol* sym = unresolved_string_at(idx);
 idx1 = tbl->symbol_to_value(sym);
 assert(idx1 != 0, "Have not found a hashtable entry");
 Bytes::put_Java_u2((address) (bytes+1), idx1);
 DBG(char *str = sym->as_utf8());
 DBG(printf("JVM_CONSTANT_UnresolvedString: idx=#%03hd, %s", idx1, str));
 DBG(print_cpool_bytes(cnt, start_bytes));
 return (int)(bytes - start_bytes);
 } /* end copy_cpool_bytes */
-void SymbolHashMap::add_entry(symbolOop sym, u2 value) {
+void SymbolHashMap::add_entry(Symbol* sym, u2 value) {
 char *str = sym->as_utf8();
 unsigned int hash = compute_hash(str, sym->utf8_length());
 unsigned int index = hash % table_size();
 // check if already in map
 entry->set_next(bucket(index));
 _buckets[index].set_entry(entry);
 assert(entry->symbol() != NULL, "SymbolHashMapEntry symbol is NULL");
 }
-SymbolHashMapEntry* SymbolHashMap::find_entry(symbolOop sym) {
+SymbolHashMapEntry* SymbolHashMap::find_entry(Symbol* sym) {
 assert(sym != NULL, "SymbolHashMap::find_entry - symbol is NULL");
 char *str = sym->as_utf8();
 int   len = sym->utf8_length();
 unsigned int hash = SymbolHashMap::compute_hash(str, len);
 unsigned int index = hash % table_size();

Mercurial > hg > graal-jvmci-8

comparison src/share/vm/oops/constantPoolOop.cpp @ 2177:3582bf76420e