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 try { 63 DVT = MinimalValueTypes_1_0.getValueTypeClass(Point.class); 64 } 65 catch (ClassNotFoundException e) { 66 throw new RuntimeException(e); 67 } 68 69 Field[] fs = Point.class.getFields(); 70 71 FIELD_TYPES = new Class<?>[fs.length]; 72 FIELD_NAMES = new String[fs.length]; 73 74 for (int i = 0; i < fs.length; i++) { 75 FIELD_TYPES[i] = fs[i].getType(); 76 FIELD_NAMES[i] = fs[i].getName(); 77 } 78 79 try { 80 PRINT_POINT = LOOKUP.findStatic(MVTTest.class, "print", methodType(String.class, Point.class)) 81 .asType(methodType(String.class, DVT)); 82 } 83 catch (Exception e) { 84 throw new RuntimeException(e); 85 } 86 } 87 88 public void testDefaultValue() throws Throwable { 89 for (int i = 0; i < FIELD_NAMES.length; i++) { 90 MethodHandle getter = MethodHandles.collectArguments( 91 VT.findGetter(LOOKUP, FIELD_NAMES[i], FIELD_TYPES[i]), 92 0, 93 VT.defaultValueConstant()); 94 95 assertEquals((int) getter.invoke(), 0); 96 } 97 } 98 99 public void testWither() throws Throwable { 100 testWither(Point.lookup()); 101 testWither(MethodHandles.privateLookupIn(VT.boxClass(), LOOKUP)); 102 testWither(MethodHandles.privateLookupIn(VT.valueClass(), LOOKUP)); 103 } 104 105 void testWither(MethodHandles.Lookup l ) throws Throwable { 106 for (int i = 0; i < FIELD_NAMES.length; i++) { 107 MethodHandle wither = MethodHandles.collectArguments( 108 VT.findWither(l, FIELD_NAMES[i], FIELD_TYPES[i]), 0, VT.defaultValueConstant()); 109 String expected = TEMPLATE.replace("#" + FIELD_NAMES[i], String.valueOf(FIELD_VALUES[i])) 110 .replaceAll("#[xyz]", "0"); 111 112 assertEquals(printReturn(wither).invoke(FIELD_VALUES[i]), expected); 113 } 114 } 115 116 public void testSubstitutability() throws Throwable { 117 Point[] pts = {new Point(1, (short) 6, (short) 3), new Point(1, (short) 2, (short) 3)}; 118 119 MethodHandle substTest = VT.substitutabilityTest(); 120 for (Point p1 : pts) { 121 for (Point p2 : pts) { 122 assertEquals((boolean) substTest.invoke(p1, p2), p1.equals(p2)); 123 } 124 } 125 126 MethodHandle hash = VT.substitutabilityHashCode(); 127 for (Point p1 : pts) { 128 for (Point p2 : pts) { 129 boolean vHashEq = (int) hash.invoke(p1) == (int) hash.invoke(p2); 130 boolean rHashEq = p1.hashCode() == p2.hashCode(); 131 assertEquals(vHashEq, rHashEq); 132 } 133 } 134 } 135 136 public void testIdentity() throws Throwable { 137 String actual = (String) printReturn(MethodHandles.identity(VT.valueClass())) 138 .invoke(new Point(1, (short) 2, (short) 3)); 139 assertEquals(actual, "Point[x=1, y=2, z=3]"); 140 } 141 142 public void testZero() throws Throwable { 143 String actual = (String) printReturn(MethodHandles.zero(VT.valueClass())) 144 .invoke(); 145 assertEquals(actual, "Point[x=0, y=0, z=0]"); 146 } 147 148 public void testEmpty() throws Throwable { 149 String actual = (String) printReturn(MethodHandles.empty(methodType(VT.valueClass(), int.class, String.class))) 150 .invoke(1, ""); 151 assertEquals(actual, "Point[x=0, y=0, z=0]"); 152 } 153 154 public void testArray1D() throws Throwable { 155 //test monodimensional array 156 Object arr = MethodHandles.arrayConstructor(VT.arrayValueClass()).invoke(10); 157 for (int i = 0; i < 10; i++) { 158 Point p = new Point(i, (short) 9, (short) 9); 159 MethodHandles.arrayElementSetter(VT.arrayValueClass()).invoke(arr, i, p); 160 } 161 for (int i = 0; i < 10; i++) { 162 String actual = (String) printReturn(MethodHandles.arrayElementGetter(VT.arrayValueClass())) 163 .invoke(arr, i); 164 String expected = TEMPLATE.replace("#x", String.valueOf(i)) 165 .replaceAll("#[yz]", "9"); 166 assertEquals(actual, expected); 167 } 168 } 169 170 public void testArray10D() throws Throwable { 171 //test multidimensional array 172 Object[] arr2 = (Object[]) MethodHandles.arrayConstructor(VT.arrayValueClass(2)).invoke(10); 173 for (int i = 0; i < 10; i++) { 174 Object innerArr = MethodHandles.arrayConstructor(VT.arrayValueClass()).invoke(10); 175 MethodHandles.arrayElementSetter(VT.arrayValueClass(2)).invoke(arr2, i, innerArr); 176 for (int j = 0; i < 10; i++) { 177 Point p = new Point(i, (short) j, (short) 9); 178 MethodHandles.arrayElementSetter(VT.arrayValueClass()).invoke(innerArr, i, p); 179 } 180 } 181 for (int i = 0; i < 10; i++) { 182 Object innerArr = MethodHandles.arrayElementGetter(VT.arrayValueClass(2)).invoke(arr2, i); 183 for (int j = 0; i < 10; i++) { 184 String actual = (String) printReturn(MethodHandles.arrayElementGetter(VT.arrayValueClass())) 185 .invoke(innerArr, i); 186 String expected = TEMPLATE.replace("#x", String.valueOf(i)) 187 .replace("#y", String.valueOf(j)) 188 .replace("#z", "9"); 189 assertEquals(actual, expected); 190 } 191 } 192 } 193 194 public void testMultiArray() throws Throwable { 195 Object[] arr43 = (Object[]) VT.newMultiArray(2).invoke(4, 3); 196 for (int i = 0; i < 4; i++) { 197 Object innerArr = arr43[i]; 198 for (int j = 0; i < 3; i++) { 199 Point p = new Point(i, (short) j, (short) 9); 200 MethodHandles.arrayElementSetter(VT.arrayValueClass()).invoke(innerArr, i, p); 201 } 202 } 203 for (int i = 0; i < 4; i++) { 204 Object innerArr = MethodHandles.arrayElementGetter(VT.arrayValueClass(2)).invoke(arr43, i); 205 for (int j = 0; i < 3; i++) { 206 String actual = (String) printReturn(MethodHandles.arrayElementGetter(VT.arrayValueClass())) 207 .invoke(innerArr, i); 208 String expected = TEMPLATE.replace("#x", String.valueOf(i)) 209 .replace("#y", String.valueOf(j)) 210 .replace("#z", "9"); 211 assertEquals(actual, expected); 212 } 213 } 214 } 215 216 public void testLoop() throws Throwable { 217 Object arr = MethodHandles.arrayConstructor(VT.arrayValueClass()).invoke(10); 218 for (int i = 0; i < 10; i++) { 219 Point p = new Point(i, (short) 9, (short) 9); 220 MethodHandles.arrayElementSetter(VT.arrayValueClass()).invoke(arr, i, p); 221 } 222 223 /* 224 iters -> (Point[] )int 225 226 init -> (Point[] )int 227 228 sum -> (int, int, int, int)int 229 a -> (int, Point, Point, Point)int 230 b -> (int, Point)int 231 c -> (int, Point[], int)int 232 body -> (int, int, Point[])int 233 */ 234 235 MethodHandle iters = MethodHandles.arrayLength(VT.arrayValueClass()); 236 237 MethodHandle init = MethodHandles.dropArguments(MethodHandles.constant(int.class, 0), 238 0, 239 VT.arrayValueClass()); 240 241 MethodHandle sum = LOOKUP.findStatic(MVTTest.class, 242 "sum", 243 methodType(int.class, int.class, int.class, short.class, short.class)); 244 245 MethodHandle a = MethodHandles.filterArguments(sum, 1, 246 VT.findGetter(LOOKUP, FIELD_NAMES[0], FIELD_TYPES[0]), 247 VT.findGetter(LOOKUP, FIELD_NAMES[1], FIELD_TYPES[1]), 248 VT.findGetter(LOOKUP, FIELD_NAMES[2], FIELD_TYPES[2])); 249 250 MethodHandle b = MethodHandles.permuteArguments(a, 251 methodType(int.class, int.class, VT.valueClass()), 252 0, 1, 1, 1); 253 254 MethodHandle c = MethodHandles.collectArguments(b, 255 1, 256 MethodHandles.arrayElementGetter(VT.arrayValueClass())); 257 258 MethodHandle body = MethodHandles.permuteArguments(c, 259 methodType(int.class, int.class, int.class, VT.arrayValueClass()), 260 0, 2, 1); 261 262 MethodHandle loop = MethodHandles.countedLoop(iters, init, body); 263 int actual = (int) loop.invoke(arr); 264 int expected = 9 * 10 * 2 + 10 * (0 + 9) / 2; 265 assertEquals(actual, expected); 266 } 267 268 static int sum(int v, int x, short y, short z) { 269 return v + x + y + z; 270 } 271 272 static MethodHandle printReturn(MethodHandle mh) { 273 return MethodHandles.filterReturnValue(mh, PRINT_POINT); 274 } 275 276 static String print(Point p) { 277 return String.format("Point[x=%d, y=%d, z=%d]", p.x, p.y, p.z); 278 } 279 }