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17817
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1 /*
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 import sun.hotspot.code.NMethod;
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26
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27 /*
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28 * @test GetNMethodTest
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29 * @bug 8038240
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30 * @library /testlibrary /testlibrary/whitebox
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31 * @build GetNMethodTest
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32 * @run main ClassFileInstaller sun.hotspot.WhiteBox
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33 * @run main/othervm -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,SimpleTestCase$Helper::* GetNMethodTest
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34 * @summary testing of WB::getNMethod()
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35 * @author igor.ignatyev@oracle.com
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36 */
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37 public class GetNMethodTest extends CompilerWhiteBoxTest {
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38 public static void main(String[] args) throws Exception {
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39 CompilerWhiteBoxTest.main(GetNMethodTest::new, args);
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40 }
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41
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42 private GetNMethodTest(TestCase testCase) {
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43 super(testCase);
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44 // to prevent inlining of #method
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45 WHITE_BOX.testSetDontInlineMethod(method, true);
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46 }
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47
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48 @Override
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49 protected void test() throws Exception {
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50 checkNotCompiled();
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51
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52 compile();
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53 checkCompiled();
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54 NMethod nmethod = NMethod.get(method, testCase.isOsr());
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55 if (IS_VERBOSE) {
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56 System.out.println("nmethod = " + nmethod);
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57 }
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58 if (nmethod == null) {
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59 throw new RuntimeException("nmethod of compiled method is null");
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60 }
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61 if (nmethod.insts.length == 0) {
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62 throw new RuntimeException("compiled method's instructions is empty");
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63 }
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64 deoptimize();
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65 checkNotCompiled();
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66 nmethod = NMethod.get(method, testCase.isOsr());
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67 if (nmethod != null) {
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68 throw new RuntimeException("nmethod of non-compiled method isn't null");
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69 }
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70 }
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71 }
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