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 24 /* 25 * @test 26 * @bug 8130832 27 * @modules java.base/jdk.internal.misc 28 * @library /testlibrary /test/lib / 29 * 30 * @build compiler.intrinsics.IntrinsicAvailableTest 31 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 32 * sun.hotspot.WhiteBox$WhiteBoxPermission 33 * @run main/othervm -Xbootclasspath/a:. 34 * -XX:+UnlockDiagnosticVMOptions 35 * -XX:+WhiteBoxAPI 36 * -XX:+UseCRC32Intrinsics 37 * compiler.intrinsics.IntrinsicAvailableTest 38 * @run main/othervm -Xbootclasspath/a:. 39 * -XX:+UnlockDiagnosticVMOptions 40 * -XX:+WhiteBoxAPI 41 * -XX:-UseCRC32Intrinsics 42 * compiler.intrinsics.IntrinsicAvailableTest 43 */ 44 45 46 package compiler.intrinsics; 47 48 import compiler.whitebox.CompilerWhiteBoxTest; 49 import jdk.test.lib.Platform; 50 51 import java.lang.reflect.Executable; 52 import java.util.concurrent.Callable; 53 54 public class IntrinsicAvailableTest extends CompilerWhiteBoxTest { 55 protected String VMName; 56 57 public IntrinsicAvailableTest(IntrinsicAvailableTestTestCase testCase) { 58 super(testCase); 59 VMName = System.getProperty("java.vm.name"); 60 } 61 62 public static class IntrinsicAvailableTestTestCase implements TestCase { 63 64 public String name() { 65 return "IntrinsicAvailableTestTestCase"; 66 } 67 68 public Executable getExecutable() { 69 // Using a single method to test the 70 // WhiteBox.isIntrinsicAvailable(Executable method, int compLevel) 71 // call for the compilation level corresponding to both the C1 and C2 72 // compiler keeps the current test simple. 73 // 74 // The tested method is java.util.zip.CRC32.update(int, int) because 75 // both C1 and C2 define an intrinsic for the method and 76 // the UseCRC32Intrinsics flag can be used to enable/disable 77 // intrinsification of the method in both product and fastdebug 78 // builds. 79 try { 80 return Class.forName("java.util.zip.CRC32").getDeclaredMethod("update", int.class, int.class); 81 } catch (NoSuchMethodException e) { 82 throw new RuntimeException("Test bug, method unavailable. " + e); 83 } catch (ClassNotFoundException e) { 84 throw new RuntimeException("Test bug, class unavailable. " + e); 85 } 86 } 87 88 public Callable<Integer> getCallable() { 89 return null; 90 } 91 92 public boolean isOsr() { 93 return false; 94 } 95 96 } 97 98 protected void checkIntrinsicForCompilationLevel(Executable method, int compLevel) throws Exception { 99 boolean intrinsicEnabled = Boolean.valueOf(getVMOption("UseCRC32Intrinsics")); 100 boolean intrinsicAvailable = WHITE_BOX.isIntrinsicAvailable(method, 101 compLevel); 102 103 String intrinsicEnabledMessage = intrinsicEnabled ? "enabled" : "disabled"; 104 String intrinsicAvailableMessage = intrinsicAvailable ? "available" : "not available"; 105 106 if (intrinsicEnabled == intrinsicAvailable) { 107 System.out.println("Expected result: intrinsic for java.util.zip.CRC32.update() is " + 108 intrinsicEnabledMessage + " and intrinsic is " + intrinsicAvailableMessage + 109 " at compilation level " + compLevel); 110 } else { 111 throw new RuntimeException("Unexpected result: intrinsic for java.util.zip.CRC32.update() is " + 112 intrinsicEnabledMessage + " but intrinsic is " + intrinsicAvailableMessage + 113 " at compilation level " + compLevel); 114 } 115 } 116 117 public void test() throws Exception { 118 Executable intrinsicMethod = testCase.getExecutable(); 119 if (Platform.isServer()) { 120 if (TIERED_COMPILATION) { 121 checkIntrinsicForCompilationLevel(intrinsicMethod, COMP_LEVEL_SIMPLE); 122 } 123 // Dont bother check JVMCI compiler - returns false on all intrinsics. 124 if (!Boolean.valueOf(getVMOption("UseJVMCICompiler"))) { 125 checkIntrinsicForCompilationLevel(intrinsicMethod, COMP_LEVEL_FULL_OPTIMIZATION); 126 } 127 } else { 128 checkIntrinsicForCompilationLevel(intrinsicMethod, COMP_LEVEL_SIMPLE); 129 } 130 } 131 132 public static void main(String args[]) throws Exception { 133 new IntrinsicAvailableTest(new IntrinsicAvailableTestTestCase()).test(); 134 } 135 }