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 * @modules java.base/valhalla.shady
27 * jdk.incubator.mvt
28 * @run testng/othervm -XX:+EnableMVT -XX:+ValueArrayFlatten MVTTest
29 * @run testng/othervm -XX:+EnableMVT -XX:-ValueArrayFlatten MVTTest
30 * @run testng/othervm -XX:+EnableMVT -Dvalhalla.enableValueLambdaForms=true MVTTest
31 * @run testng/othervm -XX:+EnableMVT -Dvalhalla.enableValueLambdaForms=true -Dvalhalla.enablePoolPatches=true MVTTest
32 */
33
34 import jdk.incubator.mvt.ValueType;
35 import org.testng.annotations.Test;
36 import valhalla.shady.MinimalValueTypes_1_0;
37
38 import java.lang.invoke.MethodHandle;
39 import java.lang.invoke.MethodHandles;
40 import java.lang.reflect.Field;
41
42 import static java.lang.invoke.MethodType.methodType;
43 import static org.testng.Assert.assertEquals;
44
45 @Test
46 public class MVTTest {
47 static final Class<?> DVT;
48
49 static final ValueType<?> VT = ValueType.forClass(Point.class);
50
51 static final Class<?>[] FIELD_TYPES;
52
53 static final String[] FIELD_NAMES;
54
55 static String TEMPLATE = "Point[x=#x, y=#y, z=#z]";
56
57 static final Object[] FIELD_VALUES = {42, (short) 43, (short) 44};
58
59 static final MethodHandles.Lookup LOOKUP = MethodHandles.lookup();
60
61 static final MethodHandle PRINT_POINT;
62
63 static {
64 DVT = MinimalValueTypes_1_0.getValueTypeClass(Point.class);
65
66 Field[] fs = Point.class.getFields();
67
68 FIELD_TYPES = new Class<?>[fs.length];
69 FIELD_NAMES = new String[fs.length];
70
71 for (int i = 0; i < fs.length; i++) {
72 FIELD_TYPES[i] = fs[i].getType();
73 FIELD_NAMES[i] = fs[i].getName();
74 }
75
76 try {
77 PRINT_POINT = LOOKUP.findStatic(MVTTest.class, "print", methodType(String.class, Point.class))
78 .asType(methodType(String.class, DVT));
79 }
80 catch (Exception e) {
81 throw new RuntimeException(e);
82 }
83 }
84
85 public void testDefaultValue() throws Throwable {
86 for (int i = 0; i < FIELD_NAMES.length; i++) {
87 MethodHandle getter = MethodHandles.collectArguments(
88 VT.findGetter(LOOKUP, FIELD_NAMES[i], FIELD_TYPES[i]),
89 0,
90 VT.defaultValueConstant());
91
92 assertEquals((int) getter.invoke(), 0);
93 }
94 }
95
96 public void testWither() throws Throwable {
97 testWither(Point.lookup());
98 testWither(MethodHandles.privateLookupIn(VT.boxClass(), LOOKUP));
99 testWither(MethodHandles.privateLookupIn(VT.valueClass(), LOOKUP));
100 }
101
102 void testWither(MethodHandles.Lookup l ) throws Throwable {
103 for (int i = 0; i < FIELD_NAMES.length; i++) {
104 MethodHandle wither = MethodHandles.collectArguments(
105 VT.findWither(l, FIELD_NAMES[i], FIELD_TYPES[i]), 0, VT.defaultValueConstant());
106 String expected = TEMPLATE.replace("#" + FIELD_NAMES[i], String.valueOf(FIELD_VALUES[i]))
107 .replaceAll("#[xyz]", "0");
108
109 assertEquals(printReturn(wither).invoke(FIELD_VALUES[i]), expected);
110 }
111 }
112
113 public void testSubstitutability() throws Throwable {
114 Point[] pts = {new Point(1, (short) 6, (short) 3), new Point(1, (short) 2, (short) 3)};
115
116 MethodHandle substTest = VT.substitutabilityTest();
117 for (Point p1 : pts) {
118 for (Point p2 : pts) {
119 assertEquals((boolean) substTest.invoke(p1, p2), p1.equals(p2));
120 }
121 }
122
123 MethodHandle hash = VT.substitutabilityHashCode();
124 for (Point p1 : pts) {
125 for (Point p2 : pts) {
126 boolean vHashEq = (int) hash.invoke(p1) == (int) hash.invoke(p2);
127 boolean rHashEq = p1.hashCode() == p2.hashCode();
128 assertEquals(vHashEq, rHashEq);
129 }
130 }
131 }
132
133 public void testIdentity() throws Throwable {
134 String actual = (String) printReturn(MethodHandles.identity(VT.valueClass()))
135 .invoke(new Point(1, (short) 2, (short) 3));
136 assertEquals(actual, "Point[x=1, y=2, z=3]");
137 }
138
139 public void testZero() throws Throwable {
140 String actual = (String) printReturn(MethodHandles.zero(VT.valueClass()))
141 .invoke();
142 assertEquals(actual, "Point[x=0, y=0, z=0]");
143 }
144
145 public void testEmpty() throws Throwable {
146 String actual = (String) printReturn(MethodHandles.empty(methodType(VT.valueClass(), int.class, String.class)))
147 .invoke(1, "");
148 assertEquals(actual, "Point[x=0, y=0, z=0]");
149 }
150
151 public void testArray1D() throws Throwable {
152 //test monodimensional array
153 Object arr = MethodHandles.arrayConstructor(VT.arrayValueClass()).invoke(10);
154 for (int i = 0; i < 10; i++) {
155 Point p = new Point(i, (short) 9, (short) 9);
156 MethodHandles.arrayElementSetter(VT.arrayValueClass()).invoke(arr, i, p);
157 }
158 for (int i = 0; i < 10; i++) {
159 String actual = (String) printReturn(MethodHandles.arrayElementGetter(VT.arrayValueClass()))
160 .invoke(arr, i);
161 String expected = TEMPLATE.replace("#x", String.valueOf(i))
162 .replaceAll("#[yz]", "9");
163 assertEquals(actual, expected);
164 }
165 }
166
167 public void testArray10D() throws Throwable {
168 //test multidimensional array
169 Object[] arr2 = (Object[]) MethodHandles.arrayConstructor(VT.arrayValueClass(2)).invoke(10);
170 for (int i = 0; i < 10; i++) {
171 Object innerArr = MethodHandles.arrayConstructor(VT.arrayValueClass()).invoke(10);
172 MethodHandles.arrayElementSetter(VT.arrayValueClass(2)).invoke(arr2, i, innerArr);
173 for (int j = 0; i < 10; i++) {
174 Point p = new Point(i, (short) j, (short) 9);
175 MethodHandles.arrayElementSetter(VT.arrayValueClass()).invoke(innerArr, i, p);
176 }
177 }
178 for (int i = 0; i < 10; i++) {
179 Object innerArr = MethodHandles.arrayElementGetter(VT.arrayValueClass(2)).invoke(arr2, i);
180 for (int j = 0; i < 10; i++) {
181 String actual = (String) printReturn(MethodHandles.arrayElementGetter(VT.arrayValueClass()))
182 .invoke(innerArr, i);
183 String expected = TEMPLATE.replace("#x", String.valueOf(i))
184 .replace("#y", String.valueOf(j))
185 .replace("#z", "9");
186 assertEquals(actual, expected);
187 }
188 }
189 }
190
191 public void testMultiArray() throws Throwable {
192 Object[] arr43 = (Object[]) VT.newMultiArray(2).invoke(4, 3);
193 for (int i = 0; i < 4; i++) {
194 Object innerArr = arr43[i];
195 for (int j = 0; i < 3; i++) {
196 Point p = new Point(i, (short) j, (short) 9);
197 MethodHandles.arrayElementSetter(VT.arrayValueClass()).invoke(innerArr, i, p);
198 }
199 }
200 for (int i = 0; i < 4; i++) {
201 Object innerArr = MethodHandles.arrayElementGetter(VT.arrayValueClass(2)).invoke(arr43, i);
202 for (int j = 0; i < 3; i++) {
203 String actual = (String) printReturn(MethodHandles.arrayElementGetter(VT.arrayValueClass()))
204 .invoke(innerArr, i);
205 String expected = TEMPLATE.replace("#x", String.valueOf(i))
206 .replace("#y", String.valueOf(j))
207 .replace("#z", "9");
208 assertEquals(actual, expected);
209 }
210 }
211 }
212
213 public void testLoop() throws Throwable {
214 Object arr = MethodHandles.arrayConstructor(VT.arrayValueClass()).invoke(10);
215 for (int i = 0; i < 10; i++) {
216 Point p = new Point(i, (short) 9, (short) 9);
217 MethodHandles.arrayElementSetter(VT.arrayValueClass()).invoke(arr, i, p);
218 }
219
220 /*
221 iters -> (Point[] )int
222
223 init -> (Point[] )int
224
225 sum -> (int, int, int, int)int
226 a -> (int, Point, Point, Point)int
227 b -> (int, Point)int
228 c -> (int, Point[], int)int
229 body -> (int, int, Point[])int
230 */
231
232 MethodHandle iters = MethodHandles.arrayLength(VT.arrayValueClass());
233
234 MethodHandle init = MethodHandles.dropArguments(MethodHandles.constant(int.class, 0),
235 0,
236 VT.arrayValueClass());
237
238 MethodHandle sum = LOOKUP.findStatic(MVTTest.class,
239 "sum",
240 methodType(int.class, int.class, int.class, short.class, short.class));
241
242 MethodHandle a = MethodHandles.filterArguments(sum, 1,
243 VT.findGetter(LOOKUP, FIELD_NAMES[0], FIELD_TYPES[0]),
244 VT.findGetter(LOOKUP, FIELD_NAMES[1], FIELD_TYPES[1]),
245 VT.findGetter(LOOKUP, FIELD_NAMES[2], FIELD_TYPES[2]));
246
247 MethodHandle b = MethodHandles.permuteArguments(a,
248 methodType(int.class, int.class, VT.valueClass()),
249 0, 1, 1, 1);
250
251 MethodHandle c = MethodHandles.collectArguments(b,
252 1,
253 MethodHandles.arrayElementGetter(VT.arrayValueClass()));
254
255 MethodHandle body = MethodHandles.permuteArguments(c,
256 methodType(int.class, int.class, int.class, VT.arrayValueClass()),
257 0, 2, 1);
258
259 MethodHandle loop = MethodHandles.countedLoop(iters, init, body);
260 int actual = (int) loop.invoke(arr);
261 int expected = 9 * 10 * 2 + 10 * (0 + 9) / 2;
262 assertEquals(actual, expected);
263 }
264
265 static int sum(int v, int x, short y, short z) {
266 return v + x + y + z;
267 }
268
269 static MethodHandle printReturn(MethodHandle mh) {
270 return MethodHandles.filterReturnValue(mh, PRINT_POINT);
271 }
272
273 static String print(Point p) {
274 return String.format("Point[x=%d, y=%d, z=%d]", p.x, p.y, p.z);
275 }
276 }