1 /*
2 * Copyright (c) 2019, 2024, 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 // TODO 8325106 Investigate why this suddenly started to throw java.lang.OutOfMemoryError without -Xmx200m
25 // and -XX:-UseCompressedOops -XX:+UseG1GC -XX:InitiatingHeapOccupancyPercent=0 -Xmx20m -Xmn1m -XX:G1HeapRegionSize=1m -XX:-ReduceInitialCardMarks
26
27 /**
28 * @test
29 * @summary Verify that certain array accesses do not trigger deoptimization.
30 * @library /test/lib
31 * @enablePreview
32 * @modules java.base/jdk.internal.value
33 * java.base/jdk.internal.vm.annotation
34 * @run main/othervm -Xmx200m TestArrayAccessDeopt
35 */
36
37 import java.io.File;
38 import jdk.test.lib.Asserts;
39 import jdk.test.lib.process.OutputAnalyzer;
40 import jdk.test.lib.process.ProcessTools;
41
42 import jdk.internal.value.ValueClass;
43 import jdk.internal.vm.annotation.ImplicitlyConstructible;
44 import jdk.internal.vm.annotation.LooselyConsistentValue;
45 import jdk.internal.vm.annotation.NullRestricted;
46
47 @ImplicitlyConstructible
48 @LooselyConsistentValue
49 value class MyValue1 {
50 public int x = 0;
51 }
52
53 public class TestArrayAccessDeopt {
54
55 public static void test1(Object[] va, Object vt) {
56 va[0] = vt;
57 }
58
59 public static void test2(Object[] va, MyValue1 vt) {
60 va[0] = vt;
61 }
62
63 public static void test3(MyValue1[] va, Object vt) {
64 va[0] = (MyValue1)vt;
65 }
66
67 public static void test4(MyValue1[] va, MyValue1 vt) {
68 va[0] = vt;
69 }
70
71 public static void test5(Object[] va, MyValue1 vt) {
72 va[0] = vt;
73 }
74
75 public static void test6(MyValue1[] va, Object vt) {
76 va[0] = (MyValue1)vt;
77 }
78
79 public static void test7(MyValue1[] va, MyValue1 vt) {
80 va[0] = vt;
81 }
82
83 public static void test8(MyValue1[] va, MyValue1 vt) {
84 va[0] = vt;
85 }
86
87 public static void test9(MyValue1[] va, MyValue1 vt) {
88 va[0] = (MyValue1)vt;
89 }
90
91 public static void test10(Object[] va) {
92 va[0] = null;
93 }
94
95 public static void test11(MyValue1[] va) {
96 va[0] = null;
97 }
98
99 static public void main(String[] args) throws Exception {
100 if (args.length == 0) {
101 // Run test in new VM instance
102 String[] arg = {"--enable-preview", "--add-exports", "java.base/jdk.internal.vm.annotation=ALL-UNNAMED", "--add-exports", "java.base/jdk.internal.value=ALL-UNNAMED",
103 "-XX:CompileCommand=quiet", "-XX:CompileCommand=compileonly,TestArrayAccessDeopt::test*", "-XX:-UseArrayLoadStoreProfile",
104 "-XX:+TraceDeoptimization", "-Xbatch", "-XX:-MonomorphicArrayCheck", "-Xmixed", "-XX:+ProfileInterpreter", "TestArrayAccessDeopt", "run"};
105 OutputAnalyzer oa = ProcessTools.executeTestJvm(arg);
106 String output = oa.getOutput();
107 oa.shouldNotContain("Uncommon trap occurred");
108 } else {
109 MyValue1[] va = (MyValue1[])ValueClass.newNullRestrictedArray(MyValue1.class, 1);
110 MyValue1[] vaB = new MyValue1[1];
111 MyValue1 vt = new MyValue1();
112 for (int i = 0; i < 10_000; ++i) {
113 test1(va, vt);
114 test1(vaB, vt);
115 test1(vaB, null);
116 test2(va, vt);
117 test2(vaB, vt);
118 test2(vaB, null);
119 test3(va, vt);
120 test3(vaB, vt);
121 test3(vaB, null);
122 test4(va, vt);
123 test4(vaB, vt);
124 test4(vaB, null);
125 test5(va, vt);
126 test5(vaB, vt);
127 test6(va, vt);
128 try {
129 test6(va, null);
130 throw new RuntimeException("NullPointerException expected");
131 } catch (NullPointerException npe) {
132 // Expected
133 }
134 test7(va, vt);
135 test8(va, vt);
136 test8(vaB, vt);
137 test9(va, vt);
138 try {
139 test9(va, null);
140 throw new RuntimeException("NullPointerException expected");
141 } catch (NullPointerException npe) {
142 // Expected
143 }
144 test10(vaB);
145 test11(vaB);
146 }
147 }
148 }
149 }