410 // The oopFactory likes to work with the element type.
411 BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type();
412 result = oopFactory::new_typeArray_nozero(elem_type, len, THREAD);
413
414 // Pass oops back through thread local storage. Our apparent type to Java
415 // is that we return an oop, but we can block on exit from this routine and
416 // a GC can trash the oop in C's return register. The generated stub will
417 // fetch the oop from TLS after any possible GC.
418 deoptimize_caller_frame(current, HAS_PENDING_EXCEPTION);
419 current->set_vm_result(result);
420 JRT_BLOCK_END;
421
422
423 // inform GC that we won't do card marks for initializing writes.
424 SharedRuntime::on_slowpath_allocation_exit(current);
425
426 oop result = current->vm_result();
427 if ((len > 0) && (result != nullptr) &&
428 is_deoptimized_caller_frame(current)) {
429 // Zero array here if the caller is deoptimized.
430 const size_t size = TypeArrayKlass::cast(array_type)->oop_size(result);
431 BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type();
432 size_t hs_bytes = arrayOopDesc::base_offset_in_bytes(elem_type);
433 assert(is_aligned(hs_bytes, BytesPerInt), "must be 4 byte aligned");
434 HeapWord* obj = cast_from_oop<HeapWord*>(result);
435 if (!is_aligned(hs_bytes, BytesPerLong)) {
436 *reinterpret_cast<jint*>(reinterpret_cast<char*>(obj) + hs_bytes) = 0;
437 hs_bytes += BytesPerInt;
438 }
439
440 // Optimized zeroing.
441 assert(is_aligned(hs_bytes, BytesPerLong), "must be 8-byte aligned");
442 const size_t aligned_hs = hs_bytes / BytesPerLong;
443 Copy::fill_to_aligned_words(obj+aligned_hs, size-aligned_hs);
444 }
445
446 JRT_END
447
448 // Note: multianewarray for one dimension is handled inline by GraphKit::new_array.
449
450 // multianewarray for 2 dimensions
|
410 // The oopFactory likes to work with the element type.
411 BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type();
412 result = oopFactory::new_typeArray_nozero(elem_type, len, THREAD);
413
414 // Pass oops back through thread local storage. Our apparent type to Java
415 // is that we return an oop, but we can block on exit from this routine and
416 // a GC can trash the oop in C's return register. The generated stub will
417 // fetch the oop from TLS after any possible GC.
418 deoptimize_caller_frame(current, HAS_PENDING_EXCEPTION);
419 current->set_vm_result(result);
420 JRT_BLOCK_END;
421
422
423 // inform GC that we won't do card marks for initializing writes.
424 SharedRuntime::on_slowpath_allocation_exit(current);
425
426 oop result = current->vm_result();
427 if ((len > 0) && (result != nullptr) &&
428 is_deoptimized_caller_frame(current)) {
429 // Zero array here if the caller is deoptimized.
430 const size_t size = TypeArrayKlass::cast(array_type)->oop_size(result, result->mark());
431 BasicType elem_type = TypeArrayKlass::cast(array_type)->element_type();
432 size_t hs_bytes = arrayOopDesc::base_offset_in_bytes(elem_type);
433 assert(is_aligned(hs_bytes, BytesPerInt), "must be 4 byte aligned");
434 HeapWord* obj = cast_from_oop<HeapWord*>(result);
435 if (!is_aligned(hs_bytes, BytesPerLong)) {
436 *reinterpret_cast<jint*>(reinterpret_cast<char*>(obj) + hs_bytes) = 0;
437 hs_bytes += BytesPerInt;
438 }
439
440 // Optimized zeroing.
441 assert(is_aligned(hs_bytes, BytesPerLong), "must be 8-byte aligned");
442 const size_t aligned_hs = hs_bytes / BytesPerLong;
443 Copy::fill_to_aligned_words(obj+aligned_hs, size-aligned_hs);
444 }
445
446 JRT_END
447
448 // Note: multianewarray for one dimension is handled inline by GraphKit::new_array.
449
450 // multianewarray for 2 dimensions
|