diff -r 522e6a7f6e61 -r d76560472470 hotspot/src/share/vm/oops/arrayOop.cpp --- a/hotspot/src/share/vm/oops/arrayOop.cpp Thu Oct 06 18:05:44 2016 -0700 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,62 +0,0 @@ -/* - * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - * - */ - -#include "precompiled.hpp" - -/////////////// Unit tests /////////////// - -#ifndef PRODUCT - -#include "oops/arrayOop.hpp" -#include "oops/oop.inline.hpp" -#include "utilities/globalDefinitions.hpp" - -bool arrayOopDesc::check_max_length_overflow(BasicType type) { - julong length = max_array_length(type); - julong bytes_per_element = type2aelembytes(type); - julong bytes = length * bytes_per_element + header_size_in_bytes(); - return (julong)(size_t)bytes == bytes; -} - -static void test_max_array_length() { - assert(arrayOopDesc::check_max_length_overflow(T_BOOLEAN), "size_t overflow for boolean array"); - assert(arrayOopDesc::check_max_length_overflow(T_CHAR), "size_t overflow for char array"); - assert(arrayOopDesc::check_max_length_overflow(T_FLOAT), "size_t overflow for float array"); - assert(arrayOopDesc::check_max_length_overflow(T_DOUBLE), "size_t overflow for double array"); - assert(arrayOopDesc::check_max_length_overflow(T_BYTE), "size_t overflow for byte array"); - assert(arrayOopDesc::check_max_length_overflow(T_SHORT), "size_t overflow for short array"); - assert(arrayOopDesc::check_max_length_overflow(T_INT), "size_t overflow for int array"); - assert(arrayOopDesc::check_max_length_overflow(T_LONG), "size_t overflow for long array"); - assert(arrayOopDesc::check_max_length_overflow(T_OBJECT), "size_t overflow for object array"); - assert(arrayOopDesc::check_max_length_overflow(T_ARRAY), "size_t overflow for array array"); - assert(arrayOopDesc::check_max_length_overflow(T_NARROWOOP), "size_t overflow for narrowOop array"); - - // T_VOID and T_ADDRESS are not supported by max_array_length() -} - -void arrayOopDesc_test() { - test_max_array_length(); -} - -#endif //PRODUCT