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 (vm.simpleArch == "x64" | vm.simpleArch == "sparcv9" | vm.simpleArch == "aarch64")
28 * @library / /testlibrary /test/lib
29 * @library ../common/patches
30 * @modules java.base/jdk.internal.misc
31 * @modules java.base/jdk.internal.org.objectweb.asm
32 * java.base/jdk.internal.org.objectweb.asm.tree
33 * jdk.vm.ci/jdk.vm.ci.hotspot
34 * jdk.vm.ci/jdk.vm.ci.code
35 * jdk.vm.ci/jdk.vm.ci.meta
36 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
37 * @build compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
38 * @build sun.hotspot.WhiteBox
39 * @run main ClassFileInstaller sun.hotspot.WhiteBox
40 * sun.hotspot.WhiteBox$WhiteBoxPermission
41 * @run main/othervm -Xmixed -Xbootclasspath/a:.
42 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
43 * -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
44 * -XX:CompileCommand=exclude,*::check
45 * -XX:+DoEscapeAnalysis
46 * -Xbatch
47 * -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate=false
48 * compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
49 * @run main/othervm -Xmixed -Xbootclasspath/a:.
50 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
51 * -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
52 * -XX:CompileCommand=exclude,*::check
53 * -XX:+DoEscapeAnalysis
54 * -Xbatch
55 * -Dcompiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate=true
56 * compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest
57 */
58
59 package compiler.jvmci.compilerToVM;
60
61 import java.lang.reflect.Method;
62 import jdk.vm.ci.hotspot.HotSpotStackFrameReference;
63 import jdk.vm.ci.meta.ResolvedJavaMethod;
64 import jdk.vm.ci.hotspot.CompilerToVMHelper;
65 import jdk.test.lib.Asserts;
66
67 import compiler.jvmci.common.CTVMUtilities;
68 import compiler.testlibrary.CompilerUtils;
69 import compiler.whitebox.CompilerWhiteBoxTest;
70
71 import sun.hotspot.WhiteBox;
72
73 public class MaterializeVirtualObjectTest {
74 private static final WhiteBox WB;
75 private static final Method METHOD;
76 private static final ResolvedJavaMethod RESOLVED_METHOD;
77 private static final boolean INVALIDATE;
78 private static final int COMPILE_THRESHOLD;
79
80 static {
81 WB = WhiteBox.getWhiteBox();
82 try {
83 METHOD = MaterializeVirtualObjectTest.class.getDeclaredMethod(
84 "testFrame", String.class, int.class);
85 } catch (NoSuchMethodException e) {
86 throw new Error("Can't get executable for test method", e);
87 }
88 RESOLVED_METHOD = CTVMUtilities.getResolvedMethod(METHOD);
89 INVALIDATE = Boolean.getBoolean(
90 "compiler.jvmci.compilerToVM.MaterializeVirtualObjectTest.invalidate");
91 COMPILE_THRESHOLD = WB.getBooleanVMFlag("TieredCompilation")
92 ? CompilerWhiteBoxTest.THRESHOLD
93 : CompilerWhiteBoxTest.THRESHOLD * 2;
94 }
95
96 public static void main(String[] args) {
97 int levels[] = CompilerUtils.getAvailableCompilationLevels();
98 // we need compilation level 4 to use EscapeAnalysis
99 if (levels.length < 1 || levels[levels.length - 1] != 4) {
100 System.out.println("INFO: Test needs compilation level 4 to"
101 + " be available. Skipping.");
102 } else {
103 new MaterializeVirtualObjectTest().test();
104 }
105 }
106
107 private static String getName() {
108 return "CASE: invalidate=" + INVALIDATE;
109 }
110
111 private void test() {
112 System.out.println(getName());
113 Asserts.assertFalse(WB.isMethodCompiled(METHOD), getName()
114 + " : method unexpectedly compiled");
115 /* need to trigger compilation by multiple method invocations
116 in order to have method profile data to be gathered */
117 for (int i = 0; i < COMPILE_THRESHOLD; i++) {
118 testFrame("someString", i);
119 }
120 Asserts.assertTrue(WB.isMethodCompiled(METHOD), getName()
121 + "Method unexpectedly not compiled");
122 testFrame("someString", COMPILE_THRESHOLD);
123 }
124
125 private void testFrame(String str, int iteration) {
126 Helper helper = new Helper(str);
127 check(iteration);
128 Asserts.assertTrue((helper.string != null) && (this != null)
129 && (helper != null), getName() + " : some locals are null");
130 }
131
132 private void check(int iteration) {
133 // Materialize virtual objects on last invocation
134 if (iteration == COMPILE_THRESHOLD) {
135 HotSpotStackFrameReference hsFrame = CompilerToVMHelper
136 .getNextStackFrame(/* topmost frame */ null,
137 new ResolvedJavaMethod[]{
138 RESOLVED_METHOD}, /* don't skip any */ 0);
139 Asserts.assertNotNull(hsFrame, getName() + " : got null frame");
140 Asserts.assertTrue(WB.isMethodCompiled(METHOD), getName()
141 + "Test method should be compiled");
142 Asserts.assertTrue(hsFrame.hasVirtualObjects(), getName()
143 + ": has no virtual object before materialization");
144 CompilerToVMHelper.materializeVirtualObjects(hsFrame, INVALIDATE);
145 Asserts.assertFalse(hsFrame.hasVirtualObjects(), getName()
146 + " : has virtual object after materialization");
147 Asserts.assertEQ(WB.isMethodCompiled(METHOD), !INVALIDATE, getName()
148 + " : unexpected compiled status");
149 }
150 }
151
152 private class Helper {
153 public String string;
154
155 public Helper(String s) {
156 this.string = s;
157 }
158 }
159 }