1 /*
 2  * Copyright (c) 2023, 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 package compiler.valhalla.inlinetypes;
25 
26 import jdk.test.lib.Asserts;
27 import jdk.internal.misc.Unsafe;
28 import compiler.lib.ir_framework.*;
29 
30 /*
31  * @test
32  * @summary Missing InlineTypeNode re-materialization during type sharpening.
33  * @library /test/lib /
34  * @enablePreview
35  * @modules java.base/jdk.internal.misc
36  * @run main/othervm/timeout=300 compiler.valhalla.inlinetypes.TestValueRematDuringTypeSharpening
37  */
38 
39 abstract value class topValue {
40 }
41 
42 value class dummyValue1 extends topValue {
43    int field;
44    public dummyValue1(int val) {
45       field = val;
46    }
47 }
48 
49 value class dummyValue2 extends topValue {
50    int field;
51    public dummyValue2(int val) {
52       field = val;
53    }
54 }
55 
56 public class TestValueRematDuringTypeSharpening {
57 
58    public static final Unsafe UNSAFE = Unsafe.getUnsafe();
59 
60    @DontInline
61    public static int getUnsafeFieldValue(topValue obj, int incr) {
62        return UNSAFE.getInt(obj, 12) + incr;
63    }
64 
65    @Test
66    @IR(phase = {CompilePhase.AFTER_PARSING}, counts = {IRNode.INLINE_TYPE, " > 0 "})
67    public static int test(topValue obj) {
68        int val = 0;
69        if (obj.getClass() != dummyValue1.class) {
70            val += 10;
71        } else if (obj.getClass() != dummyValue2.class) {
72            val += 20;
73        }
74        return getUnsafeFieldValue(obj, val);
75    }
76 
77    @Run(test = {"test"}, mode = RunMode.NORMAL)
78    public static void kernel() {
79        test(new dummyValue1(10));
80        test(new dummyValue2(20));
81    }
82 
83    public static void main(String [] args) {
84        TestFramework.runWithFlags("-XX:-TieredCompilation", "--enable-preview", "--add-exports", "java.base/jdk.internal.misc=ALL-UNNAMED");
85        System.out.println("PASS");
86    }
87 }
88