1 /* 2 * Copyright (c) 2015, 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 import java.lang.reflect.Executable; 24 import java.util.concurrent.Callable; 25 import java.util.Objects; 26 import compiler.whitebox.CompilerWhiteBoxTest; 27 /* 28 * @test 29 * @bug 8130832 30 * @library /testlibrary /test/lib /compiler/whitebox /compiler/testlibrary / 31 * @build IntrinsicAvailableTest 32 * @run main ClassFileInstaller sun.hotspot.WhiteBox 33 * sun.hotspot.WhiteBox$WhiteBoxPermission 34 * @run main/othervm -Xbootclasspath/a:. 35 * -XX:+UnlockDiagnosticVMOptions 36 * -XX:+WhiteBoxAPI 37 * -XX:+UseCRC32Intrinsics 38 * IntrinsicAvailableTest 39 * @run main/othervm -Xbootclasspath/a:. 40 * -XX:+UnlockDiagnosticVMOptions 41 * -XX:+WhiteBoxAPI 42 * -XX:-UseCRC32Intrinsics 43 * IntrinsicAvailableTest 44 */ 45 public class IntrinsicAvailableTest extends CompilerWhiteBoxTest { 46 protected String VMName; 47 48 public IntrinsicAvailableTest(IntrinsicAvailableTestTestCase testCase) { 49 super(testCase); 50 VMName = System.getProperty("java.vm.name"); 51 } 52 53 public static class IntrinsicAvailableTestTestCase implements TestCase { 54 55 public String name() { 56 return "IntrinsicAvailableTestTestCase"; 57 } 58 59 public Executable getExecutable() { 60 // Using a single method to test the 61 // WhiteBox.isIntrinsicAvailable(Executable method, int compLevel) 62 // call for the compilation level corresponding to both the C1 and C2 63 // compiler keeps the current test simple. 64 // 65 // The tested method is java.util.zip.CRC32.update(int, int) because 66 // both C1 and C2 define an intrinsic for the method and 67 // the UseCRC32Intrinsics flag can be used to enable/disable 68 // intrinsification of the method in both product and fastdebug 69 // builds. 70 try { 71 return Class.forName("java.util.zip.CRC32").getDeclaredMethod("update", int.class, int.class); 72 } catch (NoSuchMethodException e) { 73 throw new RuntimeException("Test bug, method unavailable. " + e); 74 } catch (ClassNotFoundException e) { 75 throw new RuntimeException("Test bug, class unavailable. " + e); 76 } 77 } 78 79 public Callable<Integer> getCallable() { 80 return null; 81 } 82 83 public boolean isOsr() { 84 return false; 85 } 86 87 } 88 89 protected void checkIntrinsicForCompilationLevel(Executable method, int compLevel) throws Exception { 90 boolean intrinsicEnabled = Boolean.valueOf(getVMOption("UseCRC32Intrinsics")); 91 boolean intrinsicAvailable = WHITE_BOX.isIntrinsicAvailable(method, 92 compLevel); 93 94 String intrinsicEnabledMessage = intrinsicEnabled ? "enabled" : "disabled"; 95 String intrinsicAvailableMessage = intrinsicAvailable ? "available" : "not available"; 96 97 if (intrinsicEnabled == intrinsicAvailable) { 98 System.out.println("Expected result: intrinsic for java.util.zip.CRC32.update() is " + 99 intrinsicEnabledMessage + " and intrinsic is " + intrinsicAvailableMessage + 100 " at compilation level " + compLevel); 101 } else { 102 throw new RuntimeException("Unexpected result: intrinsic for java.util.zip.CRC32.update() is " + 103 intrinsicEnabledMessage + " but intrinsic is " + intrinsicAvailableMessage + 104 " at compilation level " + compLevel); 105 } 106 } 107 108 protected boolean isServerVM() { 109 return VMName.toLowerCase().contains("server"); 110 } 111 112 public void test() throws Exception { 113 Executable intrinsicMethod = testCase.getExecutable(); 114 if (isServerVM()) { 115 if (TIERED_COMPILATION) { 116 checkIntrinsicForCompilationLevel(intrinsicMethod, COMP_LEVEL_SIMPLE); 117 } 118 checkIntrinsicForCompilationLevel(intrinsicMethod, COMP_LEVEL_FULL_OPTIMIZATION); 119 } else { 120 checkIntrinsicForCompilationLevel(intrinsicMethod, COMP_LEVEL_SIMPLE); 121 } 122 } 123 124 public static void main(String args[]) throws Exception { 125 new IntrinsicAvailableTest(new IntrinsicAvailableTestTestCase()).test(); 126 } 127 }