oop doubleByteArrayKlass::allocateObjectSize(int size, bool permit_scavenge, bool tenured) {
klassOop k = as_klassOop();
int ni_size = non_indexable_size();
int obj_size = ni_size + 1 + roundTo(size * 2, oopSize) / oopSize;
// allocate
oop* result = tenured ?
Universe::allocate_tenured(obj_size, permit_scavenge) :
Universe::allocate(obj_size, (memOop*)&k, permit_scavenge);
if (result == NULL) return NULL;
doubleByteArrayOop obj = as_doubleByteArrayOop(result);
// header
memOop(obj)->initialize_header(true, k);
// instance variables
memOop(obj)->initialize_body(memOopDesc::header_size(), ni_size);
// indexables
oop* base = (oop*) obj->addr();
oop* end = base + obj_size;
// %optimized 'obj->set_length(size)'
base[ni_size] = as_smiOop(size);
// %optimized 'for (int index = 1; index <= size; index++)
// obj->doubleByte_at_put(index, 0)'
base = &base[ni_size+1];
while (base < end) *base++ = (oop) 0;
return obj;
}
PRIM_DECL_2(doubleByteArrayPrimitives::allocateSize, oop receiver, oop argument) {
PROLOGUE_2("allocateSize", receiver, argument)
assert(receiver->is_klass() && klassOop(receiver)->klass_part()->oop_is_doubleByteArray(),
"receiver must double byte array class");
if (!argument->is_smi())
markSymbol(vmSymbols::first_argument_has_wrong_type());
if (smiOop(argument)->value() < 0)
return markSymbol(vmSymbols::negative_size());
klassOop k = klassOop(receiver);
int ni_size = k->klass_part()->non_indexable_size();
int obj_size = ni_size + 1 + roundTo(smiOop(argument)->value() * 2, oopSize) / oopSize;
// allocate
doubleByteArrayOop obj = as_doubleByteArrayOop(Universe::allocate(obj_size, (memOop*)&k));
// header
memOop(obj)->initialize_header(true, k);
// instance variables
memOop(obj)->initialize_body(memOopDesc::header_size(), ni_size);
// indexables
oop* base = (oop*) obj->addr();
oop* end = base + obj_size;
// %optimized 'obj->set_length(size)'
base[ni_size] = argument;
// %optimized 'for (int index = 1; index <= size; index++)
// obj->doubleByte_at_put(index, 0)'
base = &base[ni_size+1];
while (base < end) *base++ = (oop) 0;
return obj;
}
