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