1 /*
2 * Copyright (c) 2011, 2015, 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 package org.graalvm.compiler.hotspot.replacements;
24
25 import java.lang.reflect.Method;
26 import java.util.EnumMap;
27
28 import org.graalvm.compiler.api.directives.GraalDirectives;
29 import org.graalvm.compiler.api.replacements.Snippet;
30 import org.graalvm.compiler.debug.GraalError;
31 import org.graalvm.compiler.hotspot.replacements.arraycopy.ArrayCopyCallNode;
32 import org.graalvm.compiler.nodes.java.DynamicNewArrayNode;
33 import org.graalvm.compiler.nodes.java.NewArrayNode;
34 import org.graalvm.compiler.replacements.Snippets;
35
36 import jdk.vm.ci.meta.JavaKind;
37
38 public class ObjectCloneSnippets implements Snippets {
39
40 public static final EnumMap<JavaKind, Method> arrayCloneMethods = new EnumMap<>(JavaKind.class);
41
42 static {
43 arrayCloneMethods.put(JavaKind.Boolean, getCloneMethod("booleanArrayClone", boolean[].class));
44 arrayCloneMethods.put(JavaKind.Byte, getCloneMethod("byteArrayClone", byte[].class));
45 arrayCloneMethods.put(JavaKind.Char, getCloneMethod("charArrayClone", char[].class));
46 arrayCloneMethods.put(JavaKind.Short, getCloneMethod("shortArrayClone", short[].class));
47 arrayCloneMethods.put(JavaKind.Int, getCloneMethod("intArrayClone", int[].class));
48 arrayCloneMethods.put(JavaKind.Float, getCloneMethod("floatArrayClone", float[].class));
49 arrayCloneMethods.put(JavaKind.Long, getCloneMethod("longArrayClone", long[].class));
50 arrayCloneMethods.put(JavaKind.Double, getCloneMethod("doubleArrayClone", double[].class));
51 arrayCloneMethods.put(JavaKind.Object, getCloneMethod("objectArrayClone", Object[].class));
52 }
53
54 private static Method getCloneMethod(String name, Class<?> param) {
55 try {
56 return ObjectCloneSnippets.class.getDeclaredMethod(name, param);
57 } catch (SecurityException | NoSuchMethodException e) {
58 throw new GraalError(e);
59 }
60 }
61
62 @Snippet
63 public static boolean[] booleanArrayClone(boolean[] src) {
64 boolean[] result = (boolean[]) NewArrayNode.newUninitializedArray(Boolean.TYPE, src.length);
65 ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, JavaKind.Boolean);
66 return result;
67 }
68
69 @Snippet
70 public static byte[] byteArrayClone(byte[] src) {
71 byte[] result = (byte[]) NewArrayNode.newUninitializedArray(Byte.TYPE, src.length);
72 ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, JavaKind.Byte);
73 return result;
74 }
75
76 @Snippet
77 public static short[] shortArrayClone(short[] src) {
78 short[] result = (short[]) NewArrayNode.newUninitializedArray(Short.TYPE, src.length);
79 ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, JavaKind.Short);
80 return result;
81 }
82
83 @Snippet
84 public static char[] charArrayClone(char[] src) {
85 char[] result = (char[]) NewArrayNode.newUninitializedArray(Character.TYPE, src.length);
86 ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, JavaKind.Char);
87 return result;
88 }
89
90 @Snippet
91 public static int[] intArrayClone(int[] src) {
92 int[] result = (int[]) NewArrayNode.newUninitializedArray(Integer.TYPE, src.length);
93 ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, JavaKind.Int);
94 return result;
95 }
96
97 @Snippet
98 public static float[] floatArrayClone(float[] src) {
99 float[] result = (float[]) NewArrayNode.newUninitializedArray(Float.TYPE, src.length);
100 ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, JavaKind.Float);
101 return result;
102 }
103
104 @Snippet
105 public static long[] longArrayClone(long[] src) {
106 long[] result = (long[]) NewArrayNode.newUninitializedArray(Long.TYPE, src.length);
107 ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, JavaKind.Long);
108 return result;
109 }
110
111 @Snippet
112 public static double[] doubleArrayClone(double[] src) {
113 double[] result = (double[]) NewArrayNode.newUninitializedArray(Double.TYPE, src.length);
114 ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, JavaKind.Double);
115 return result;
116 }
117
118 @Snippet
119 public static Object[] objectArrayClone(Object[] src) {
120 /* Since this snippet is lowered early the array must be initialized */
121 Object[] result = (Object[]) DynamicNewArrayNode.newArray(GraalDirectives.guardingNonNull(src.getClass().getComponentType()), src.length, JavaKind.Object);
122 ArrayCopyCallNode.disjointUninitializedArraycopy(src, 0, result, 0, src.length, JavaKind.Object);
123 return result;
124 }
125 }