120 lines
4.3 KiB
Java
120 lines
4.3 KiB
Java
/*
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* Copyright (c) 2020, 2022, 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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/*
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* @test
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* @bug 8257594
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* @summary Test that failing checkcast does not trigger repeated recompilation until cutoff is hit.
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* @requires vm.compiler2.enabled
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* @modules java.base/jdk.internal.misc
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* @library /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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* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
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* -Xbatch -XX:CompileCommand=dontinline,compiler.uncommontrap.TestNullAssertAtCheckCast::test*
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* -XX:CompileCommand=inline,compiler.uncommontrap.TestNullAssertAtCheckCast::cast
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* -XX:CompileCommand=inline,compiler.uncommontrap.TestNullAssertAtCheckCast::store
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* compiler.uncommontrap.TestNullAssertAtCheckCast
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*/
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package compiler.uncommontrap;
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import jdk.test.whitebox.WhiteBox;
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import java.lang.reflect.Method;
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public class TestNullAssertAtCheckCast {
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private static final WhiteBox WB = WhiteBox.getWhiteBox();
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private static final int COMP_LEVEL_FULL_OPTIMIZATION = 4;
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static Long cast(Object val) {
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return (Long)val;
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}
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static void test1() {
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try {
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// Always fails
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cast(new Integer(42));
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} catch (ClassCastException cce) {
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// Ignored
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}
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}
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static void test2(Integer val) {
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try {
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// Always fails
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cast(val);
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} catch (ClassCastException cce) {
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// Ignored
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}
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}
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static void store(Object[] array, Object val) {
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array[0] = val;
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}
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static void test3() {
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try {
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// Always fails
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store(new Long[1], new Integer(42));
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} catch (ArrayStoreException cce) {
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// Ignored
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}
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}
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static void test4(Integer val) {
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try {
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// Always fails
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store(new Long[1], val);
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} catch (ArrayStoreException cce) {
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// Ignored
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}
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}
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public static void main(String[] args) throws Exception {
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for (int i = 0; i < 1_000_000; ++i) {
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test1();
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test2((i % 2 == 0) ? null : 42);
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test3();
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test4((i % 2 == 0) ? null : 42);
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}
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Method method = TestNullAssertAtCheckCast.class.getDeclaredMethod("test1");
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if (!WB.isMethodCompilable(method, COMP_LEVEL_FULL_OPTIMIZATION, false)) {
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throw new RuntimeException("TestNullAssertAtCheckCast::test1 not compilable");
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}
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method = TestNullAssertAtCheckCast.class.getDeclaredMethod("test2", Integer.class);
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if (!WB.isMethodCompilable(method, COMP_LEVEL_FULL_OPTIMIZATION, false)) {
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throw new RuntimeException("TestNullAssertAtCheckCast::test2 not compilable");
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}
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method = TestNullAssertAtCheckCast.class.getDeclaredMethod("test3");
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if (!WB.isMethodCompilable(method, COMP_LEVEL_FULL_OPTIMIZATION, false)) {
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throw new RuntimeException("TestNullAssertAtCheckCast::test3 not compilable");
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}
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method = TestNullAssertAtCheckCast.class.getDeclaredMethod("test4", Integer.class);
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if (!WB.isMethodCompilable(method, COMP_LEVEL_FULL_OPTIMIZATION, false)) {
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throw new RuntimeException("TestNullAssertAtCheckCast::test4 not compilable");
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}
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}
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}
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