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 import compiler.whitebox.CompilerWhiteBoxTest; 29 30 /* 31 * @test GetNMethodTest 32 * @bug 8038240 33 * @library /testlibrary /test/lib / 34 * @modules java.base/jdk.internal.misc 35 * @modules java.management 36 * @build GetNMethodTest 37 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 38 * sun.hotspot.WhiteBox$WhiteBoxPermission 39 * @run main/othervm -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:-UseCounterDecay -XX:CompileCommand=compileonly,compiler.whitebox.SimpleTestCaseHelper::* GetNMethodTest 40 * @summary testing of WB::getNMethod() 41 * @author igor.ignatyev@oracle.com 42 */ 43 public class GetNMethodTest extends CompilerWhiteBoxTest { 44 public static void main(String[] args) throws Exception { 45 CompilerWhiteBoxTest.main(GetNMethodTest::new, args); 46 } 47 48 private GetNMethodTest(TestCase testCase) { 49 super(testCase); 50 // to prevent inlining of #method 51 WHITE_BOX.testSetDontInlineMethod(method, true); 52 } 53 54 @Override 55 protected void test() throws Exception { 56 checkNotCompiled(); 57 58 compile(); 59 checkCompiled(); 60 61 NMethod nmethod = NMethod.get(method, testCase.isOsr()); 62 if (IS_VERBOSE) { 63 System.out.println("nmethod = " + nmethod); 64 } 65 Asserts.assertNotNull(nmethod, 66 "nmethod of compiled method is null"); 67 Asserts.assertNotNull(nmethod.insts, 68 "nmethod.insts of compiled method is null"); 69 Asserts.assertGT(nmethod.insts.length, 0, 70 "compiled method's instructions is empty"); 71 Asserts.assertNotNull(nmethod.code_blob_type, "blob type is null"); 72 if (WHITE_BOX.getBooleanVMFlag("SegmentedCodeCache")) { 73 Asserts.assertNE(nmethod.code_blob_type, BlobType.All); 74 switch (nmethod.comp_level) { 75 case 1: 76 case 4: 77 checkBlockType(nmethod, BlobType.MethodNonProfiled); 78 break; 79 case 2: 80 case 3: 81 checkBlockType(nmethod, BlobType.MethodProfiled); 82 break; 83 default: 84 throw new Error("unexpected comp level " + nmethod); 85 } 86 } else { 87 Asserts.assertEQ(nmethod.code_blob_type, BlobType.All); 88 } 89 90 deoptimize(); 91 checkNotCompiled(); 92 nmethod = NMethod.get(method, testCase.isOsr()); 93 Asserts.assertNull(nmethod, 94 "nmethod of non-compiled method isn't null"); 95 } 96 97 private void checkBlockType(NMethod nmethod, BlobType expectedType) { 98 Asserts.assertEQ(nmethod.code_blob_type, expectedType, 99 String.format("blob_type[%s] for %d level isn't %s", 100 nmethod.code_blob_type, nmethod.comp_level, expectedType)); 101 } 102 }