| /* |
| * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| import sun.hotspot.code.BlobType; |
| import sun.hotspot.code.NMethod; |
| import jdk.test.lib.Asserts; |
| import compiler.whitebox.CompilerWhiteBoxTest; |
| |
| /* |
| * @test GetNMethodTest |
| * @bug 8038240 |
| * @library /testlibrary /test/lib / |
| * @modules java.base/jdk.internal.misc |
| * @modules java.management |
| * @build GetNMethodTest |
| * @run driver ClassFileInstaller sun.hotspot.WhiteBox |
| * sun.hotspot.WhiteBox$WhiteBoxPermission |
| * @run main/othervm -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:-UseCounterDecay -XX:CompileCommand=compileonly,compiler.whitebox.SimpleTestCaseHelper::* GetNMethodTest |
| * @summary testing of WB::getNMethod() |
| * @author igor.ignatyev@oracle.com |
| */ |
| public class GetNMethodTest extends CompilerWhiteBoxTest { |
| public static void main(String[] args) throws Exception { |
| CompilerWhiteBoxTest.main(GetNMethodTest::new, args); |
| } |
| |
| private GetNMethodTest(TestCase testCase) { |
| super(testCase); |
| // to prevent inlining of #method |
| WHITE_BOX.testSetDontInlineMethod(method, true); |
| } |
| |
| @Override |
| protected void test() throws Exception { |
| checkNotCompiled(); |
| |
| compile(); |
| checkCompiled(); |
| |
| NMethod nmethod = NMethod.get(method, testCase.isOsr()); |
| if (IS_VERBOSE) { |
| System.out.println("nmethod = " + nmethod); |
| } |
| Asserts.assertNotNull(nmethod, |
| "nmethod of compiled method is null"); |
| Asserts.assertNotNull(nmethod.insts, |
| "nmethod.insts of compiled method is null"); |
| Asserts.assertGT(nmethod.insts.length, 0, |
| "compiled method's instructions is empty"); |
| Asserts.assertNotNull(nmethod.code_blob_type, "blob type is null"); |
| if (WHITE_BOX.getBooleanVMFlag("SegmentedCodeCache")) { |
| Asserts.assertNE(nmethod.code_blob_type, BlobType.All); |
| switch (nmethod.comp_level) { |
| case 1: |
| case 4: |
| checkBlockType(nmethod, BlobType.MethodNonProfiled); |
| break; |
| case 2: |
| case 3: |
| checkBlockType(nmethod, BlobType.MethodProfiled); |
| break; |
| default: |
| throw new Error("unexpected comp level " + nmethod); |
| } |
| } else { |
| Asserts.assertEQ(nmethod.code_blob_type, BlobType.All); |
| } |
| |
| deoptimize(); |
| checkNotCompiled(); |
| nmethod = NMethod.get(method, testCase.isOsr()); |
| Asserts.assertNull(nmethod, |
| "nmethod of non-compiled method isn't null"); |
| } |
| |
| private void checkBlockType(NMethod nmethod, BlobType expectedType) { |
| Asserts.assertEQ(nmethod.code_blob_type, expectedType, |
| String.format("blob_type[%s] for %d level isn't %s", |
| nmethod.code_blob_type, nmethod.comp_level, expectedType)); |
| } |
| } |