/*
* Copyright ( c ) 1997 , 2016 , 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 .
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* Please contact Oracle , 500 Oracle Parkway , Redwood Shores , CA 94065 USA
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*/
#include "precompiled.hpp"
#include "oops/arrayOop.hpp"
#include "oops/oop.inline.hpp"
#include "unittest.hpp"
#include "utilities/globalDefinitions.hpp"
class arrayOopDescTest {
public :
static int header_size_in_bytes() {
return arrayOopDesc::header_size_in_bytes();
}
};
static bool check_max_length_overflow(BasicType type) {
julong length = arrayOopDesc::max_array_length(type);
julong bytes_per_element = type2aelembytes(type);
julong bytes = length * bytes_per_element
+ arrayOopDescTest::header_size_in_bytes();
return (julong) (size_t) bytes == bytes;
}
TEST_VM(arrayOopDesc, boolean) {
ASSERT_PRED1(check_max_length_overflow, T_BOOLEAN);
}
TEST_VM(arrayOopDesc, char ) {
ASSERT_PRED1(check_max_length_overflow, T_CHAR);
}
TEST_VM(arrayOopDesc, float ) {
ASSERT_PRED1(check_max_length_overflow, T_FLOAT);
}
TEST_VM(arrayOopDesc, double ) {
ASSERT_PRED1(check_max_length_overflow, T_DOUBLE);
}
TEST_VM(arrayOopDesc, byte) {
ASSERT_PRED1(check_max_length_overflow, T_BYTE);
}
TEST_VM(arrayOopDesc, short ) {
ASSERT_PRED1(check_max_length_overflow, T_SHORT);
}
TEST_VM(arrayOopDesc, int ) {
ASSERT_PRED1(check_max_length_overflow, T_INT);
}
TEST_VM(arrayOopDesc, long ) {
ASSERT_PRED1(check_max_length_overflow, T_LONG);
}
TEST_VM(arrayOopDesc, object) {
ASSERT_PRED1(check_max_length_overflow, T_OBJECT);
}
TEST_VM(arrayOopDesc, array) {
ASSERT_PRED1(check_max_length_overflow, T_ARRAY);
}
TEST_VM(arrayOopDesc, narrowOop) {
ASSERT_PRED1(check_max_length_overflow, T_NARROWOOP);
}
// T_VOID and T_ADDRESS are not supported by max_array_length()
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