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