1 /*
2 * Copyright (c) 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 * @run testng/othervm -Xint -Xverify:none -XX:+EnableMVT -XX:+ValueArrayFlatten MVTTest
27 * @run testng/othervm -Xint -Xverify:none -XX:+EnableMVT -XX:-ValueArrayFlatten MVTTest
28 * @run testng/othervm -Xint -Xverify:none -XX:+EnableMVT -Dvalhalla.enableValueLambdaForms=true MVTTest
29 * @run testng/othervm -Xint -Xverify:none -XX:+EnableMVT -Dvalhalla.enableValueLambdaForms=true -Dvalhalla.enablePoolPatches=true MVTTest
30 */
31
32 import jdk.experimental.value.ValueType;
33 import org.testng.annotations.Test;
34 import valhalla.shady.MinimalValueTypes_1_0;
35
36 import java.lang.invoke.MethodHandle;
37 import java.lang.invoke.MethodHandles;
38 import java.lang.reflect.Field;
39
40 import static java.lang.invoke.MethodType.methodType;
41 import static org.testng.Assert.assertEquals;
42
43 @Test
44 public class MVTTest {
45 static final Class<?> DVT;
46
47 static final ValueType<?> VT = ValueType.forClass(Point.class);
48
49 static final Class<?>[] FIELD_TYPES;
50
51 static final String[] FIELD_NAMES;
52
53 static String TEMPLATE = "Point[x=#x, y=#y, z=#z]";
54
55 static final Object[] FIELD_VALUES = {42, (short) 43, (short) 44};
56
57 static final MethodHandles.Lookup LOOKUP = MethodHandles.lookup();
58
59 static final MethodHandle PRINT_POINT;
60
61 static {
62 DVT = MinimalValueTypes_1_0.getValueTypeClass(Point.class);
63
64 Field[] fs = Point.class.getFields();
65
66 FIELD_TYPES = new Class<?>[fs.length];
67 FIELD_NAMES = new String[fs.length];
68
69 for (int i = 0; i < fs.length; i++) {
70 FIELD_TYPES[i] = fs[i].getType();
71 FIELD_NAMES[i] = fs[i].getName();
72 }
73
74 try {
75 PRINT_POINT = LOOKUP.findStatic(MVTTest.class, "print", methodType(String.class, Point.class))
76 .asType(methodType(String.class, DVT));
77 }
78 catch (Exception e) {
79 throw new RuntimeException(e);
80 }
81 }
82
83 public void testDefaultValue() throws Throwable {
84 for (int i = 0; i < FIELD_NAMES.length; i++) {
85 MethodHandle getter = MethodHandles.collectArguments(
86 VT.findGetter(LOOKUP, FIELD_NAMES[i], FIELD_TYPES[i]),
87 0,
88 VT.defaultValueConstant());
89
90 assertEquals((int) getter.invoke(), 0);
91 }
92 }
93
94 public void testWither() throws Throwable {
95 for (int i = 0; i < FIELD_NAMES.length; i++) {
96 MethodHandle wither = MethodHandles.collectArguments(
97 VT.findWither(LOOKUP, FIELD_NAMES[i], FIELD_TYPES[i]), 0, VT.defaultValueConstant());
98 String expected = TEMPLATE.replace("#" + FIELD_NAMES[i], String.valueOf(FIELD_VALUES[i]))
99 .replaceAll("#[xyz]", "0");
100
101 assertEquals(printReturn(wither).invoke(FIELD_VALUES[i]), expected);
102 }
103 }
104
105 public void testSubstitutability() throws Throwable {
106 Point[] pts = {new Point(1, (short) 6, (short) 3), new Point(1, (short) 2, (short) 3)};
107
108 MethodHandle substTest = VT.substitutabilityTest();
109 for (Point p1 : pts) {
110 for (Point p2 : pts) {
111 assertEquals((boolean) substTest.invoke(p1, p2), p1.equals(p2));
112 }
113 }
114
115 MethodHandle hash = VT.substitutabilityHashCode();
116 for (Point p1 : pts) {
117 for (Point p2 : pts) {
118 boolean vHashEq = (int) hash.invoke(p1) == (int) hash.invoke(p2);
119 boolean rHashEq = p1.hashCode() == p2.hashCode();
120 assertEquals(vHashEq, rHashEq);
121 }
122 }
123 }
124
125 public void testIdentity() throws Throwable {
126 String actual = (String) printReturn(MethodHandles.identity(VT.valueClass()))
127 .invoke(new Point(1, (short) 2, (short) 3));
128 assertEquals(actual, "Point[x=1, y=2, z=3]");
129 }
130
131 public void testZero() throws Throwable {
132 String actual = (String) printReturn(MethodHandles.zero(VT.valueClass()))
133 .invoke();
134 assertEquals(actual, "Point[x=0, y=0, z=0]");
135 }
136
137 public void testEmpty() throws Throwable {
138 String actual = (String) printReturn(MethodHandles.empty(methodType(VT.valueClass(), int.class, String.class)))
139 .invoke(1, "");
140 assertEquals(actual, "Point[x=0, y=0, z=0]");
141 }
142
143 public void testArray1D() throws Throwable {
144 //test monodimensional array
145 Object arr = MethodHandles.arrayConstructor(VT.arrayValueClass()).invoke(10);
146 for (int i = 0; i < 10; i++) {
147 Point p = new Point(i, (short) 9, (short) 9);
148 MethodHandles.arrayElementSetter(VT.arrayValueClass()).invoke(arr, i, p);
149 }
150 for (int i = 0; i < 10; i++) {
151 String actual = (String) printReturn(MethodHandles.arrayElementGetter(VT.arrayValueClass()))
152 .invoke(arr, i);
153 String expected = TEMPLATE.replace("#x", String.valueOf(i))
154 .replaceAll("#[yz]", "9");
155 assertEquals(actual, expected);
156 }
157 }
158
159 public void testArray10D() throws Throwable {
160 //test multidimensional array
161 Object[] arr2 = (Object[]) MethodHandles.arrayConstructor(VT.arrayValueClass(2)).invoke(10);
162 for (int i = 0; i < 10; i++) {
163 Object innerArr = MethodHandles.arrayConstructor(VT.arrayValueClass()).invoke(10);
164 MethodHandles.arrayElementSetter(VT.arrayValueClass(2)).invoke(arr2, i, innerArr);
165 for (int j = 0; i < 10; i++) {
166 Point p = new Point(i, (short) j, (short) 9);
167 MethodHandles.arrayElementSetter(VT.arrayValueClass()).invoke(innerArr, i, p);
168 }
169 }
170 for (int i = 0; i < 10; i++) {
171 Object innerArr = MethodHandles.arrayElementGetter(VT.arrayValueClass(2)).invoke(arr2, i);
172 for (int j = 0; i < 10; i++) {
173 String actual = (String) printReturn(MethodHandles.arrayElementGetter(VT.arrayValueClass()))
174 .invoke(innerArr, i);
175 String expected = TEMPLATE.replace("#x", String.valueOf(i))
176 .replace("#y", String.valueOf(j))
177 .replace("#z", "9");
178 assertEquals(actual, expected);
179 }
180 }
181 }
182
183 public void testMultiArray() throws Throwable {
184 Object[] arr43 = (Object[]) VT.newMultiArray(2).invoke(4, 3);
185 for (int i = 0; i < 4; i++) {
186 Object innerArr = arr43[i];
187 for (int j = 0; i < 3; i++) {
188 Point p = new Point(i, (short) j, (short) 9);
189 MethodHandles.arrayElementSetter(VT.arrayValueClass()).invoke(innerArr, i, p);
190 }
191 }
192 for (int i = 0; i < 4; i++) {
193 Object innerArr = MethodHandles.arrayElementGetter(VT.arrayValueClass(2)).invoke(arr43, i);
194 for (int j = 0; i < 3; i++) {
195 String actual = (String) printReturn(MethodHandles.arrayElementGetter(VT.arrayValueClass()))
196 .invoke(innerArr, i);
197 String expected = TEMPLATE.replace("#x", String.valueOf(i))
198 .replace("#y", String.valueOf(j))
199 .replace("#z", "9");
200 assertEquals(actual, expected);
201 }
202 }
203 }
204
205 public void testLoop() throws Throwable {
206 Object arr = MethodHandles.arrayConstructor(VT.arrayValueClass()).invoke(10);
207 for (int i = 0; i < 10; i++) {
208 Point p = new Point(i, (short) 9, (short) 9);
209 MethodHandles.arrayElementSetter(VT.arrayValueClass()).invoke(arr, i, p);
210 }
211
212 /*
213 iters -> (Point[] )int
214
215 init -> (Point[] )int
216
217 sum -> (int, int, int, int)int
218 a -> (int, Point, Point, Point)int
219 b -> (int, Point)int
220 c -> (int, Point[], int)int
221 body -> (int, int, Point[])int
222 */
223
224 MethodHandle iters = MethodHandles.arrayLength(VT.arrayValueClass());
225
226 MethodHandle init = MethodHandles.dropArguments(MethodHandles.constant(int.class, 0),
227 0,
228 VT.arrayValueClass());
229
230 MethodHandle sum = LOOKUP.findStatic(MVTTest.class,
231 "sum",
232 methodType(int.class, int.class, int.class, short.class, short.class));
233
234 MethodHandle a = MethodHandles.filterArguments(sum, 1,
235 VT.findGetter(LOOKUP, FIELD_NAMES[0], FIELD_TYPES[0]),
236 VT.findGetter(LOOKUP, FIELD_NAMES[1], FIELD_TYPES[1]),
237 VT.findGetter(LOOKUP, FIELD_NAMES[2], FIELD_TYPES[2]));
238
239 MethodHandle b = MethodHandles.permuteArguments(a,
240 methodType(int.class, int.class, VT.valueClass()),
241 0, 1, 1, 1);
242
243 MethodHandle c = MethodHandles.collectArguments(b,
244 1,
245 MethodHandles.arrayElementGetter(VT.arrayValueClass()));
246
247 MethodHandle body = MethodHandles.permuteArguments(c,
248 methodType(int.class, int.class, int.class, VT.arrayValueClass()),
249 0, 2, 1);
250
251 MethodHandle loop = MethodHandles.countedLoop(iters, init, body);
252 int actual = (int) loop.invoke(arr);
253 int expected = 9 * 10 * 2 + 10 * (0 + 9) / 2;
254 assertEquals(actual, expected);
255 }
256
257 static int sum(int v, int x, short y, short z) {
258 return v + x + y + z;
259 }
260
261 static MethodHandle printReturn(MethodHandle mh) {
262 return MethodHandles.filterReturnValue(mh, PRINT_POINT);
263 }
264
265 static String print(Point p) {
266 return String.format("Point[x=%d, y=%d, z=%d]", p.x, p.y, p.z);
267 }
268 }