1 /* 2 * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 25 package org.graalvm.compiler.replacements.test; 26 27 import java.lang.reflect.Field; 28 29 import org.graalvm.compiler.core.test.GraalCompilerTest; 30 import org.junit.Test; 31 32 public class UnsafeBooleanAccessTest extends GraalCompilerTest { 33 34 private static short onHeapMemory; 35 36 private static final Object onHeapMemoryBase; 37 private static final long onHeapMemoryOffset; 38 39 static { 40 try { 41 Field staticField = UnsafeBooleanAccessTest.class.getDeclaredField("onHeapMemory"); 42 onHeapMemoryBase = UNSAFE.staticFieldBase(staticField); 43 onHeapMemoryOffset = UNSAFE.staticFieldOffset(staticField); 44 } catch (Exception e) { 45 throw new RuntimeException(e); 46 } 47 } 48 testGetBooleanSnippet()49 public static boolean testGetBooleanSnippet() { 50 UNSAFE.putShort(onHeapMemoryBase, onHeapMemoryOffset, (short) 0x0204); 51 return UNSAFE.getBoolean(onHeapMemoryBase, onHeapMemoryOffset); 52 } 53 54 @Test testGetBoolean()55 public void testGetBoolean() { 56 test("testGetBooleanSnippet"); 57 } 58 testPutBooleanSnippet()59 public static short testPutBooleanSnippet() { 60 UNSAFE.putShort(onHeapMemoryBase, onHeapMemoryOffset, (short) 0x0204); 61 boolean bool = UNSAFE.getBoolean(onHeapMemoryBase, onHeapMemoryOffset); 62 UNSAFE.putBoolean(onHeapMemoryBase, onHeapMemoryOffset, bool); 63 return onHeapMemory; 64 } 65 66 @Test testPutBoolean()67 public void testPutBoolean() { 68 test("testPutBooleanSnippet"); 69 } 70 testAndBooleanSnippet()71 public static boolean testAndBooleanSnippet() { 72 UNSAFE.putShort(onHeapMemoryBase, onHeapMemoryOffset, (short) 0x0204); 73 boolean bool0 = UNSAFE.getBoolean(onHeapMemoryBase, onHeapMemoryOffset); 74 boolean bool1 = UNSAFE.getBoolean(onHeapMemoryBase, onHeapMemoryOffset + 1); 75 return bool0 & bool1; 76 } 77 78 @Test testAndBoolean()79 public void testAndBoolean() { 80 test("testAndBooleanSnippet"); 81 } 82 83 } 84