1 /* 2 * Copyright (c) 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 * @test 26 * @bug 8136421 27 * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64" 28 * @library / /testlibrary /../../test/lib 29 * @compile ../common/CompilerToVMHelper.java 30 * @build sun.hotspot.WhiteBox MaterializeVirtualObjectTest 31 * @run main ClassFileInstaller sun.hotspot.WhiteBox 32 * sun.hotspot.WhiteBox$WhiteBoxPermission 33 * jdk.vm.ci.hotspot.CompilerToVMHelper 34 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 35 * -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI 36 * -XX:CompileCommand=exclude,*::check -XX:+DoEscapeAnalysis 37 * compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest 38 */ 39 40 package compiler.jvmci.compilerToVM; 41 42 import compiler.jvmci.common.CTVMUtilities; 43 import jdk.vm.ci.hotspot.CompilerToVMHelper; 44 import jdk.test.lib.Asserts; 45 import jdk.test.lib.Utils; 46 import sun.hotspot.WhiteBox; 47 import java.lang.reflect.Method; 48 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethodImpl; 49 import jdk.vm.ci.hotspot.HotSpotStackFrameReference; 50 51 public class MaterializeVirtualObjectTest { 52 private static final WhiteBox WB = WhiteBox.getWhiteBox(); 53 private static final int INVOCATIONS = 100_000; 54 private static final Method METHOD; 55 private static final HotSpotResolvedJavaMethodImpl RESOLVED_METHOD; 56 private final boolean invalidate; 57 58 static { 59 try { 60 METHOD = MaterializeVirtualObjectTest.class.getDeclaredMethod( 61 "testFrame", String.class, Integer.class); 62 } catch (NoSuchMethodException e) { 63 throw new Error("Can't get executable for test method", e); 64 } 65 RESOLVED_METHOD = CTVMUtilities.getResolvedMethod(METHOD); 66 } 67 68 public MaterializeVirtualObjectTest(boolean invalidate) { 69 this.invalidate = invalidate; 70 } 71 72 public static void main(String[] args) { 73 new MaterializeVirtualObjectTest(true).test(); 74 new MaterializeVirtualObjectTest(false).test(); 75 } 76 77 private void test() { 78 System.out.printf("CASE: invalidate=%b%n", invalidate); 79 for (int i = 0; i < INVOCATIONS; i++) { 80 testFrame("someString", i); 81 } 82 Utils.waitForCondition(() -> WB.isMethodCompiled(METHOD), 100L); 83 Asserts.assertTrue(WB.isMethodCompiled(METHOD)); 84 testFrame("someString", INVOCATIONS); 85 } 86 87 private void testFrame(String str, Integer iteration) { 88 Helper helper = new Helper(str); 89 check(iteration); 90 Asserts.assertTrue((helper.string != null) && (this != null) 91 && (helper != null), "Some locals are null"); 92 } 93 94 private void check(int iteration) { 95 // Materialize virtual objects on last invocation 96 if (iteration == INVOCATIONS) { 97 HotSpotStackFrameReference hsFrame = CompilerToVMHelper 98 .getNextStackFrame(/* topmost frame */ null, 99 new HotSpotResolvedJavaMethodImpl[]{ 100 RESOLVED_METHOD}, /* don't skip any */ 0); 101 Asserts.assertNotNull(hsFrame, "Got null frame"); 102 Asserts.assertTrue(WB.isMethodCompiled(METHOD), 103 "Expected test method to be compiled"); 104 Asserts.assertTrue(hsFrame.hasVirtualObjects(), 105 "Has no virtual object before materialization"); 106 CompilerToVMHelper.materializeVirtualObjects(hsFrame, invalidate); 107 Asserts.assertFalse(hsFrame.hasVirtualObjects(), 108 "Has virtual object after materialization"); 109 Asserts.assertEQ(WB.isMethodCompiled(METHOD), !invalidate, 110 "Unexpected compiled status"); 111 } 112 } 113 114 private class Helper { 115 public String string; 116 117 public Helper(String s) { 118 this.string = s; 119 } 120 } 121 }