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