115 lines
4.6 KiB
Java
115 lines
4.6 KiB
Java
/*
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* Copyright (c) 2016 SAP SE 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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/*
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* @test
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* @bug 8159611
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* @summary The elimination of System.arraycopy by EscapeAnalysis prevents
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* an IndexOutOfBoundsException from being thrown if the arraycopy
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* is called with a negative length argument.
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* @modules java.base/jdk.internal.misc
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* @library /testlibrary /test/lib
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* @build jdk.test.whitebox.WhiteBox
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* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
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*
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* @run main/othervm/timeout=300
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* -Xbootclasspath/a:.
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* -XX:+UnlockDiagnosticVMOptions
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* -XX:+WhiteBoxAPI
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* -XX:-UseOnStackReplacement
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* compiler.escapeAnalysis.TestArrayCopy
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*
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* @author Volker Simonis
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*/
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package compiler.escapeAnalysis;
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import jdk.test.whitebox.WhiteBox;
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import java.lang.reflect.Method;
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public class TestArrayCopy {
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private static final WhiteBox WB = WhiteBox.getWhiteBox();
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// DST_LEN Must be const, otherwise EliminateAllocations won't work
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static final int DST_LEN = 4;
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static final int SRC_LEN = 8;
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public static boolean do_test1(Object src, int src_pos, int dst_pos, int cpy_len) {
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try {
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System.arraycopy(src, src_pos, new Object[DST_LEN], dst_pos, cpy_len);
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return false;
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} catch (IndexOutOfBoundsException e) {
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return true;
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}
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}
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public static int do_test2(Object src, int src_pos, int dst_pos, int cpy_len) {
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try {
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System.arraycopy(src, src_pos, new Object[DST_LEN], dst_pos, cpy_len);
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return 0;
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} catch (IndexOutOfBoundsException e) {
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return 1;
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} catch (ArrayStoreException e) {
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return 2;
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}
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}
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static final int COUNT = 100_000;
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static final int[] src_pos = { 0, -1, -1, 0, 0, 0, 1, 1, 1, 1, 1 };
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static final int[] dst_pos = { 0, -1, 0, -1, 0, 1, 0, 1, 1, 1, 1 };
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static final int[] cpy_len = { 0, 0, 0, 0, -1, -1, -1, -1, 8, 4, 2 };
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public static void main(String args[]) throws Exception {
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int length = args.length > 0 ? Integer.parseInt(args[0]) : -1;
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int[] int_arr = new int[SRC_LEN];
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Object[] obj_arr = new Object[SRC_LEN];
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Method test1 = TestArrayCopy.class.getMethod("do_test1", Object.class, int.class, int.class, int.class);
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Method test2 = TestArrayCopy.class.getMethod("do_test2", Object.class, int.class, int.class, int.class);
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for (int i = 0; i < src_pos.length; i++) {
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int sp = src_pos[i];
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int dp = dst_pos[i];
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int cl = cpy_len[i];
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String version1 = String.format("System.arraycopy(Object[8], %d, new Object[%d], %d, %d)", sp, DST_LEN, dp, cl);
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String version2 = String.format("System.arraycopy(int[8], %d, new Object[%d], %d, %d)", sp, DST_LEN, dp, cl);
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System.out.format("Testing " + version1 + "\nand " + version2).flush();
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for (int x = 0; x < COUNT; x++) {
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if (!do_test1(obj_arr, sp, dp, cl) &&
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(sp < 0 || dp < 0 || cl < 0 || (sp + cl >= SRC_LEN) || (dp + cl >= DST_LEN))) {
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throw new RuntimeException("Expected IndexOutOfBoundsException for " + version1);
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}
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int res = do_test2(int_arr, sp, dp, cl);
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if (res == 0 || res == 1) {
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throw new RuntimeException("Expected ArrayStoreException for " + version2);
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}
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}
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WB.deoptimizeMethod(test1);
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WB.clearMethodState(test1);
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WB.deoptimizeMethod(test2);
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WB.clearMethodState(test2);
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}
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}
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}
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