1 /*
2 * Copyright (c) 2017, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 import jdk.experimental.value.ValueType;
27
28 import java.lang.invoke.MethodHandle;
29 import java.lang.invoke.MethodHandles;
30
31 import static java.lang.invoke.MethodType.methodType;
32 import org.testng.annotations.*;
33
34 import static org.testng.Assert.assertEquals;
35
36 /*
37 * @test
38 * @run testng/othervm -Xverify:none -XX:+EnableMVT VectorTest
39 */
40
41 @Test
42 public class VectorTest {
43 static final ValueType<?> VT = ValueType.forClass(Long2.class);
44
45 static /* QLong2[] */ Object initL2Array(int length) {
46 try {
47 Object arr = MethodHandles.arrayConstructor(VT.arrayValueClass()).invoke(length);
48 for (int i = 0; i < length; i++) {
49 Long2 v = new Long2(2 * i, 2 * i + 1);
50 MethodHandles.arrayElementSetter(VT.arrayValueClass()).invoke(arr, i, v);
51 }
52 return arr;
53 } catch (Throwable e) {
54 throw new Error(e);
55 }
56 }
57
58 static final MethodHandle SUM_ARRAY_L2 =
59 VectorUtils.reducerLoop(VT, VectorLibrary.L2.ADD_L, VectorLibrary.L2.HADD_L, VT.defaultValueConstant()).
60 asType(methodType(long.class, Object.class));
61
62 /**
63 * long sum(QLong2[] a) {
64 * QLong2 v = QLong2.default; // (0,0)
65 * for (int i = 0; i < a.length; i++) {
66 * v = QLong2(v.lo + a[i].lo, v.hi + a[i].hi);
67 * }
68 * return v.lo + v.hi;
69 * }
70 */
71 // @DontInline
72 static long sumArrayL2(Object arr) {
73 try {
74 return (long) SUM_ARRAY_L2.invokeExact(arr);
75 } catch (Throwable e) {
76 throw new Error(e);
77 }
78 }
79
80 @Test(dataProvider = "arraySizes")
81 public void testSumArray(Integer size) {
82 Object arr = initL2Array(size); // QLong2[size]
83 long expected = size * (2*size - 1);
84 for (int i = 0; i < 20_000; i++) {
85 long sum = sumArrayL2(arr);
86 assertEquals(expected, sum);
87 }
88 }
89
90 /*========================================================*/
91
92 static MethodHandle createConditional() {
93 // T target(A...,B...);
94 // T fallback(A...,B...);
95 // T adapter(A... a,B... b) {
96 // if (test(a...))
97 // return target(a..., b...);
98 // else
99 // return fallback(a..., b...);
100 // }
101 MethodHandle test = MethodHandles.identity(boolean.class);
102
103 MethodHandle add = VectorLibrary.L2.ADD_L;
104 MethodHandle addVL = MethodHandles.filterArguments(add, 1, VT.unbox());
105 MethodHandle inc = MethodHandles.insertArguments(addVL, 1, new Long2(1L, 1L));
106 MethodHandle incZ = MethodHandles.dropArguments(inc, 0, boolean.class);
107
108 MethodHandle idZ = MethodHandles.dropArguments(VT.identity(), 0, boolean.class);
109
110 // (boolean, QLong2)QLong2
111 MethodHandle gwt = MethodHandles.guardWithTest(test, incZ, idZ);
112 return gwt;
113 }
114
115 static final MethodHandle conditionalMH = createConditional().
116 asType(methodType(Long2.class, boolean.class, Long2.class));
117
118 // @DontInline
119 static Long2 conditional(boolean b, Long2 v) {
120 try {
121 return (Long2) conditionalMH.invokeExact(b, v);
122 } catch (Throwable e) {
123 throw new Error(e);
124 }
125 }
126
127 public void testConditional() {
128 Long2 v = new Long2(1L, 2L);
129 for (int i = 0; i < 20_000; i++) {
130 conditional(true, v);
131 conditional(false, v);
132 }
133 }
134
135 @DataProvider(name = "arraySizes")
136 public Object[][] arraySizes() {
137 return new Object[][] {
138 new Object[] { 1 },
139 new Object[] { 5 },
140 new Object[] { 10 },
141 new Object[] { 0 }
142 };
143 }
144 }
145
--- EOF ---