85 lines
2.7 KiB
Java
85 lines
2.7 KiB
Java
/*
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* Copyright (c) 2019, 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 8224658
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* @summary Test compilation of unsafe access with zero address.
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* @modules java.base/jdk.internal.misc:+open
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* @run main/othervm -Xcomp
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* -XX:CompileCommand=compileonly,compiler.unsafe.TestUnsafeLoadWithZeroAddress::*
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* compiler.unsafe.TestUnsafeLoadWithZeroAddress
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* @run main/othervm -Xcomp -XX:+IgnoreUnrecognizedVMOptions -XX:+AlwaysIncrementalInline
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* -XX:CompileCommand=compileonly,compiler.unsafe.TestUnsafeLoadWithZeroAddress::*
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* compiler.unsafe.TestUnsafeLoadWithZeroAddress
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*/
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package compiler.unsafe;
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import jdk.internal.misc.Unsafe;
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public class TestUnsafeLoadWithZeroAddress {
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static final Unsafe UNSAFE = Unsafe.getUnsafe();
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static boolean f;
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public static void test1() {
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if (f) {
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// This branch is never executed but compiled due to -Xcomp
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UNSAFE.getInt(0);
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}
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}
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public static void test2() {
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if (f) {
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// This branch is never executed but compiled due to -Xcomp
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UNSAFE.putInt(0, 0);
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}
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}
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private static int getAddress() {
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return 0;
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}
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public static void test3() {
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if (f) {
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// This branch is never executed but compiled due to -Xcomp
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UNSAFE.getInt(getAddress());
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}
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}
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public static void test4() {
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if (f) {
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// This branch is never executed but compiled due to -Xcomp
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UNSAFE.putInt(getAddress(), 0);
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}
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}
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static public void main(String[] args) {
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test1();
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test2();
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test3();
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test4();
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}
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}
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