1 /* 2 * Copyright (c) 2013, 2014, 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 import java.util.function.Function; 25 26 /* 27 * @test ClearMethodStateTest 28 * @bug 8006683 8007288 8022832 29 * @library /testlibrary /testlibrary/whitebox 30 * @ignore 8046268 31 * @build ClearMethodStateTest 32 * @run main ClassFileInstaller sun.hotspot.WhiteBox 33 * sun.hotspot.WhiteBox$WhiteBoxPermission 34 * @run main/othervm -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,SimpleTestCase$Helper::* ClearMethodStateTest 35 * @summary testing of WB::clearMethodState() 36 * @author igor.ignatyev@oracle.com 37 */ 38 public class ClearMethodStateTest extends CompilerWhiteBoxTest { 39 40 public static void main(String[] args) throws Exception { 41 CompilerWhiteBoxTest.main(ClearMethodStateTest::new, args); 42 } 43 44 private ClearMethodStateTest(TestCase testCase) { 45 super(testCase); 46 // to prevent inlining of #method 47 WHITE_BOX.testSetDontInlineMethod(method, true); 48 } 49 50 51 /** 52 * Tests {@code WB::clearMethodState()} by calling it before/after 53 * compilation. For non-tiered, checks that counters will be rested after 54 * clearing of method state. 55 * 56 * @throws Exception if one of the checks fails. 57 */ 58 @Override 59 protected void test() throws Exception { 60 checkNotCompiled(); 61 compile(); 62 WHITE_BOX.clearMethodState(method); 63 checkCompiled(); 64 WHITE_BOX.clearMethodState(method); 65 deoptimize(); 66 checkNotCompiled(); 67 68 if (testCase.isOsr()) { 69 // part test isn't applicable for OSR test case 70 return; 71 } 72 if (!TIERED_COMPILATION) { 73 WHITE_BOX.clearMethodState(method); 74 compile(COMPILE_THRESHOLD); 75 checkCompiled(); 76 77 deoptimize(); 78 checkNotCompiled(); 79 WHITE_BOX.clearMethodState(method); 80 81 // invoke method one less time than needed to compile 82 if (COMPILE_THRESHOLD > 1) { 83 compile(COMPILE_THRESHOLD - 1); 84 checkNotCompiled(); 85 } else { 86 System.err.println("Warning: 'CompileThreshold' <= 1"); 87 } 88 89 compile(1); 90 checkCompiled(); 91 } else { 92 System.err.println( 93 "Warning: part of test is not applicable in Tiered"); 94 } 95 } 96 }