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 25 import sun.hotspot.code.NMethod; 26 27 /* 28 * @test GetNMethodTest 29 * @bug 8038240 30 * @library /testlibrary /testlibrary/whitebox 31 * @build GetNMethodTest 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::* GetNMethodTest 35 * @summary testing of WB::getNMethod() 36 * @author igor.ignatyev@oracle.com 37 */ 38 public class GetNMethodTest extends CompilerWhiteBoxTest { 39 public static void main(String[] args) throws Exception { 40 CompilerWhiteBoxTest.main(GetNMethodTest::new, args); 41 } 42 43 private GetNMethodTest(TestCase testCase) { 44 super(testCase); 45 // to prevent inlining of #method 46 WHITE_BOX.testSetDontInlineMethod(method, true); 47 } 48 49 @Override 50 protected void test() throws Exception { 51 checkNotCompiled(); 52 53 compile(); 54 checkCompiled(); 55 NMethod nmethod = NMethod.get(method, testCase.isOsr()); 56 if (IS_VERBOSE) { 57 System.out.println("nmethod = " + nmethod); 58 } 59 if (nmethod == null) { 60 throw new RuntimeException("nmethod of compiled method is null"); 61 } 62 if (nmethod.insts.length == 0) { 63 throw new RuntimeException("compiled method's instructions is empty"); 64 } 65 deoptimize(); 66 checkNotCompiled(); 67 nmethod = NMethod.get(method, testCase.isOsr()); 68 if (nmethod != null) { 69 throw new RuntimeException("nmethod of non-compiled method isn't null"); 70 } 71 } 72 }