1 /* 2 * Copyright (c) 2013, 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 import java.util.function.Function; 25 import compiler.whitebox.CompilerWhiteBoxTest; 26 27 /* 28 * @test ClearMethodStateTest 29 * @bug 8006683 8007288 8022832 30 * @library /testlibrary /../../test/lib / 31 * @modules java.management 32 * @build ClearMethodStateTest 33 * @run main ClassFileInstaller sun.hotspot.WhiteBox 34 * sun.hotspot.WhiteBox$WhiteBoxPermission 35 * @run main/othervm -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,compiler.whitebox.SimpleTestCase$Helper::* ClearMethodStateTest 36 * @summary testing of WB::clearMethodState() 37 * @author igor.ignatyev@oracle.com 38 */ 39 public class ClearMethodStateTest extends CompilerWhiteBoxTest { 40 41 public static void main(String[] args) throws Exception { 42 CompilerWhiteBoxTest.main(ClearMethodStateTest::new, args); 43 } 44 45 private ClearMethodStateTest(TestCase testCase) { 46 super(testCase); 47 // to prevent inlining of #method 48 WHITE_BOX.testSetDontInlineMethod(method, true); 49 } 50 51 52 /** 53 * Tests {@code WB::clearMethodState()} by calling it before/after 54 * compilation. For non-tiered, checks that counters will be rested after 55 * clearing of method state. 56 * 57 * @throws Exception if one of the checks fails. 58 */ 59 @Override 60 protected void test() throws Exception { 61 checkNotCompiled(); 62 compile(); 63 WHITE_BOX.clearMethodState(method); 64 checkCompiled(); 65 WHITE_BOX.clearMethodState(method); 66 deoptimize(); 67 checkNotCompiled(); 68 69 if (testCase.isOsr()) { 70 // part test isn't applicable for OSR test case 71 return; 72 } 73 if (!TIERED_COMPILATION) { 74 WHITE_BOX.clearMethodState(method); 75 compile(COMPILE_THRESHOLD); 76 checkCompiled(); 77 78 deoptimize(); 79 checkNotCompiled(); 80 WHITE_BOX.clearMethodState(method); 81 82 // invoke method one less time than needed to compile 83 if (COMPILE_THRESHOLD > 1) { 84 compile(COMPILE_THRESHOLD - 1); 85 checkNotCompiled(); 86 } else { 87 System.err.println("Warning: 'CompileThreshold' <= 1"); 88 } 89 90 compile(1); 91 checkCompiled(); 92 } else { 93 System.err.println( 94 "Warning: part of test is not applicable in Tiered"); 95 } 96 } 97 }