90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
/*
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* Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include "precompiled.hpp"
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#include "oops/arrayOop.hpp"
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#include "oops/oop.inline.hpp"
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#include "unittest.hpp"
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#include "utilities/globalDefinitions.hpp"
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class arrayOopDescTest {
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public:
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static int header_size_in_bytes() {
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return arrayOopDesc::header_size_in_bytes();
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}
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};
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static bool check_max_length_overflow(BasicType type) {
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julong length = arrayOopDesc::max_array_length(type);
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julong bytes_per_element = type2aelembytes(type);
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julong bytes = length * bytes_per_element
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+ arrayOopDescTest::header_size_in_bytes();
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return (julong) (size_t) bytes == bytes;
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}
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TEST_VM(arrayOopDesc, boolean) {
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ASSERT_PRED1(check_max_length_overflow, T_BOOLEAN);
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}
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TEST_VM(arrayOopDesc, char) {
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ASSERT_PRED1(check_max_length_overflow, T_CHAR);
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}
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TEST_VM(arrayOopDesc, float) {
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ASSERT_PRED1(check_max_length_overflow, T_FLOAT);
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}
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TEST_VM(arrayOopDesc, double) {
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ASSERT_PRED1(check_max_length_overflow, T_DOUBLE);
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}
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TEST_VM(arrayOopDesc, byte) {
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ASSERT_PRED1(check_max_length_overflow, T_BYTE);
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}
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TEST_VM(arrayOopDesc, short) {
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ASSERT_PRED1(check_max_length_overflow, T_SHORT);
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}
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TEST_VM(arrayOopDesc, int) {
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ASSERT_PRED1(check_max_length_overflow, T_INT);
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}
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TEST_VM(arrayOopDesc, long) {
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ASSERT_PRED1(check_max_length_overflow, T_LONG);
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}
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TEST_VM(arrayOopDesc, object) {
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ASSERT_PRED1(check_max_length_overflow, T_OBJECT);
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}
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TEST_VM(arrayOopDesc, array) {
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ASSERT_PRED1(check_max_length_overflow, T_ARRAY);
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}
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TEST_VM(arrayOopDesc, narrowOop) {
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ASSERT_PRED1(check_max_length_overflow, T_NARROWOOP);
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}
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// T_VOID and T_ADDRESS are not supported by max_array_length()
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