1 /*
2 * Copyright (c) 2015, 2016, 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 * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64"
27 * @compile CodeInstallationTest.java TestAssembler.java amd64/AMD64TestAssembler.java sparc/SPARCTestAssembler.java
28 * @run junit/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI compiler.jvmci.code.DataPatchTest
29 */
30
31 package compiler.jvmci.code;
32
33 import jdk.vm.ci.code.Register;
34 import jdk.vm.ci.code.site.DataSectionReference;
35 import jdk.vm.ci.hotspot.HotSpotConstant;
36 import jdk.vm.ci.hotspot.HotSpotVMConfig;
37 import jdk.vm.ci.meta.ResolvedJavaType;
38
39 import org.junit.Assume;
40 import org.junit.Test;
41
42 /**
43 * Test code installation with data patches.
44 */
45 public class DataPatchTest extends CodeInstallationTest {
46
47 public static Class<?> getConstClass() {
48 return DataPatchTest.class;
49 }
50
51 private void test(TestCompiler compiler) {
52 test(compiler, getMethod("getConstClass"));
53 }
54
55 @Test
56 public void testInlineObject() {
57 test(asm -> {
58 ResolvedJavaType type = metaAccess.lookupJavaType(getConstClass());
59 HotSpotConstant c = (HotSpotConstant) constantReflection.asJavaClass(type);
60 Register ret = asm.emitLoadPointer(c);
61 asm.emitPointerRet(ret);
62 });
63 }
64
65 @Test
66 public void testInlineNarrowObject() {
67 Assume.assumeTrue(HotSpotVMConfig.config().useCompressedOops);
68 test(asm -> {
69 ResolvedJavaType type = metaAccess.lookupJavaType(getConstClass());
70 HotSpotConstant c = (HotSpotConstant) constantReflection.asJavaClass(type);
71 Register compressed = asm.emitLoadPointer((HotSpotConstant) c.compress());
72 Register ret = asm.emitUncompressPointer(compressed, HotSpotVMConfig.config().narrowOopBase, HotSpotVMConfig.config().narrowOopShift);
73 asm.emitPointerRet(ret);
74 });
75 }
76
77 @Test
78 public void testDataSectionReference() {
79 test(asm -> {
80 ResolvedJavaType type = metaAccess.lookupJavaType(getConstClass());
81 HotSpotConstant c = (HotSpotConstant) constantReflection.asJavaClass(type);
82 DataSectionReference ref = asm.emitDataItem(c);
83 Register ret = asm.emitLoadPointer(ref);
84 asm.emitPointerRet(ret);
85 });
86 }
87
88 @Test
89 public void testNarrowDataSectionReference() {
90 Assume.assumeTrue(HotSpotVMConfig.config().useCompressedOops);
91 test(asm -> {
92 ResolvedJavaType type = metaAccess.lookupJavaType(getConstClass());
93 HotSpotConstant c = (HotSpotConstant) constantReflection.asJavaClass(type);
94 HotSpotConstant cCompressed = (HotSpotConstant) c.compress();
95 DataSectionReference ref = asm.emitDataItem(cCompressed);
96 Register compressed = asm.emitLoadNarrowPointer(ref);
97 Register ret = asm.emitUncompressPointer(compressed, HotSpotVMConfig.config().narrowOopBase, HotSpotVMConfig.config().narrowOopShift);
98 asm.emitPointerRet(ret);
99 });
100 }
101
102 @Test
103 public void testInlineMetadata() {
104 test(asm -> {
105 ResolvedJavaType type = metaAccess.lookupJavaType(getConstClass());
106 Register klass = asm.emitLoadPointer((HotSpotConstant) constantReflection.asObjectHub(type));
107 Register ret = asm.emitLoadPointer(klass, HotSpotVMConfig.config().classMirrorOffset);
108 asm.emitPointerRet(ret);
109 });
110 }
111
112 @Test
113 public void testInlineNarrowMetadata() {
114 Assume.assumeTrue(HotSpotVMConfig.config().useCompressedClassPointers);
115 test(asm -> {
116 ResolvedJavaType type = metaAccess.lookupJavaType(getConstClass());
117 HotSpotConstant hub = (HotSpotConstant) constantReflection.asObjectHub(type);
118 Register narrowKlass = asm.emitLoadPointer((HotSpotConstant) hub.compress());
119 Register klass = asm.emitUncompressPointer(narrowKlass, HotSpotVMConfig.config().narrowKlassBase, HotSpotVMConfig.config().narrowKlassShift);
120 Register ret = asm.emitLoadPointer(klass, HotSpotVMConfig.config().classMirrorOffset);
121 asm.emitPointerRet(ret);
122 });
123 }
124
125 @Test
126 public void testMetadataInDataSection() {
127 test(asm -> {
128 ResolvedJavaType type = metaAccess.lookupJavaType(getConstClass());
129 HotSpotConstant hub = (HotSpotConstant) constantReflection.asObjectHub(type);
130 DataSectionReference ref = asm.emitDataItem(hub);
131 Register klass = asm.emitLoadPointer(ref);
132 Register ret = asm.emitLoadPointer(klass, HotSpotVMConfig.config().classMirrorOffset);
133 asm.emitPointerRet(ret);
134 });
135 }
136
137 @Test
138 public void testNarrowMetadataInDataSection() {
139 Assume.assumeTrue(HotSpotVMConfig.config().useCompressedClassPointers);
140 test(asm -> {
141 ResolvedJavaType type = metaAccess.lookupJavaType(getConstClass());
142 HotSpotConstant hub = (HotSpotConstant) constantReflection.asObjectHub(type);
143 HotSpotConstant narrowHub = (HotSpotConstant) hub.compress();
144 DataSectionReference ref = asm.emitDataItem(narrowHub);
145 Register narrowKlass = asm.emitLoadNarrowPointer(ref);
146 Register klass = asm.emitUncompressPointer(narrowKlass, HotSpotVMConfig.config().narrowKlassBase, HotSpotVMConfig.config().narrowKlassShift);
147 Register ret = asm.emitLoadPointer(klass, HotSpotVMConfig.config().classMirrorOffset);
148 asm.emitPointerRet(ret);
149 });
150 }
151 }