1 /* 2 * Copyright (c) 2014, 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 25 import sun.hotspot.code.BlobType; 26 import sun.hotspot.code.NMethod; 27 import jdk.test.lib.Asserts; 28 29 /* 30 * @test GetNMethodTest 31 * @bug 8038240 32 * @library /testlibrary /test/lib 33 * @modules java.management 34 * @build GetNMethodTest 35 * @run main ClassFileInstaller sun.hotspot.WhiteBox 36 * sun.hotspot.WhiteBox$WhiteBoxPermission 37 * @run main/othervm -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:CompileCommand=compileonly,SimpleTestCase$Helper::* GetNMethodTest 38 * @summary testing of WB::getNMethod() 39 * @author igor.ignatyev@oracle.com 40 */ 41 public class GetNMethodTest extends CompilerWhiteBoxTest { 42 public static void main(String[] args) throws Exception { 43 CompilerWhiteBoxTest.main(GetNMethodTest::new, args); 44 } 45 46 private GetNMethodTest(TestCase testCase) { 47 super(testCase); 48 // to prevent inlining of #method 49 WHITE_BOX.testSetDontInlineMethod(method, true); 50 } 51 52 @Override 53 protected void test() throws Exception { 54 checkNotCompiled(); 55 56 compile(); 57 checkCompiled(); 58 59 NMethod nmethod = NMethod.get(method, testCase.isOsr()); 60 if (IS_VERBOSE) { 61 System.out.println("nmethod = " + nmethod); 62 } 63 Asserts.assertNotNull(nmethod, 64 "nmethod of compiled method is null"); 65 Asserts.assertNotNull(nmethod.insts, 66 "nmethod.insts of compiled method is null"); 67 Asserts.assertGT(nmethod.insts.length, 0, 68 "compiled method's instructions is empty"); 69 Asserts.assertNotNull(nmethod.code_blob_type, "blob type is null"); 70 if (WHITE_BOX.getBooleanVMFlag("SegmentedCodeCache")) { 71 Asserts.assertNE(nmethod.code_blob_type, BlobType.All); 72 switch (nmethod.comp_level) { 73 case 1: 74 case 4: 75 checkBlockType(nmethod, BlobType.MethodNonProfiled); 76 break; 77 case 2: 78 case 3: 79 checkBlockType(nmethod, BlobType.MethodProfiled); 80 break; 81 default: 82 throw new Error("unexpected comp level " + nmethod); 83 } 84 } else { 85 Asserts.assertEQ(nmethod.code_blob_type, BlobType.All); 86 } 87 88 deoptimize(); 89 checkNotCompiled(); 90 nmethod = NMethod.get(method, testCase.isOsr()); 91 Asserts.assertNull(nmethod, 92 "nmethod of non-compiled method isn't null"); 93 } 94 95 private void checkBlockType(NMethod nmethod, BlobType expectedType) { 96 Asserts.assertEQ(nmethod.code_blob_type, expectedType, 97 String.format("blob_type[%s] for %d level isn't %s", 98 nmethod.code_blob_type, nmethod.comp_level, expectedType)); 99 } 100 }