1 /*
2 * Copyright (c) 2011, 2018, 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 package org.graalvm.compiler.hotspot.replacements;
26
27 import static org.graalvm.compiler.hotspot.GraalHotSpotVMConfigBase.INJECTED_VMCONFIG;
28
29 import java.lang.reflect.Method;
30 import java.util.EnumMap;
31
32 import org.graalvm.compiler.api.directives.GraalDirectives;
33 import org.graalvm.compiler.api.replacements.Snippet;
34 import org.graalvm.compiler.debug.GraalError;
35 import org.graalvm.compiler.replacements.arraycopy.ArrayCopyCallNode;
36 import org.graalvm.compiler.nodes.java.DynamicNewArrayNode;
37 import org.graalvm.compiler.nodes.java.NewArrayNode;
38 import org.graalvm.compiler.replacements.Snippets;
39
40 import jdk.vm.ci.meta.JavaKind;
41
42 public class ObjectCloneSnippets implements Snippets {
43
44 public static final EnumMap<JavaKind, Method> arrayCloneMethods = new EnumMap<>(JavaKind.class);
45
46 static {
47 arrayCloneMethods.put(JavaKind.Boolean, getCloneMethod("booleanArrayClone", boolean[].class));
48 arrayCloneMethods.put(JavaKind.Byte, getCloneMethod("byteArrayClone", byte[].class));
49 arrayCloneMethods.put(JavaKind.Char, getCloneMethod("charArrayClone", char[].class));
50 arrayCloneMethods.put(JavaKind.Short, getCloneMethod("shortArrayClone", short[].class));
51 arrayCloneMethods.put(JavaKind.Int, getCloneMethod("intArrayClone", int[].class));
52 arrayCloneMethods.put(JavaKind.Float, getCloneMethod("floatArrayClone", float[].class));
53 arrayCloneMethods.put(JavaKind.Long, getCloneMethod("longArrayClone", long[].class));
54 arrayCloneMethods.put(JavaKind.Double, getCloneMethod("doubleArrayClone", double[].class));
55 arrayCloneMethods.put(JavaKind.Object, getCloneMethod("objectArrayClone", Object[].class));
56 }
57
58 private static Method getCloneMethod(String name, Class<?> param) {
59 try {
60 return ObjectCloneSnippets.class.getDeclaredMethod(name, param);
61 } catch (SecurityException | NoSuchMethodException e) {
62 throw new GraalError(e);
63 }
64 }
65
66 @Snippet
67 public static boolean[] booleanArrayClone(boolean[] src) {
68 boolean[] result = (boolean[]) NewArrayNode.newUninitializedArray(Boolean.TYPE, src.length);
69 ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, JavaKind.Boolean, HotSpotReplacementsUtil.getHeapWordSize(INJECTED_VMCONFIG));
70 return result;
71 }
72
73 @Snippet
74 public static byte[] byteArrayClone(byte[] src) {
75 byte[] result = (byte[]) NewArrayNode.newUninitializedArray(Byte.TYPE, src.length);
76 ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, JavaKind.Byte, HotSpotReplacementsUtil.getHeapWordSize(INJECTED_VMCONFIG));
77 return result;
78 }
79
80 @Snippet
81 public static short[] shortArrayClone(short[] src) {
82 short[] result = (short[]) NewArrayNode.newUninitializedArray(Short.TYPE, src.length);
83 ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, JavaKind.Short, HotSpotReplacementsUtil.getHeapWordSize(INJECTED_VMCONFIG));
84 return result;
85 }
86
87 @Snippet
88 public static char[] charArrayClone(char[] src) {
89 char[] result = (char[]) NewArrayNode.newUninitializedArray(Character.TYPE, src.length);
90 ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, JavaKind.Char, HotSpotReplacementsUtil.getHeapWordSize(INJECTED_VMCONFIG));
91 return result;
92 }
93
94 @Snippet
95 public static int[] intArrayClone(int[] src) {
96 int[] result = (int[]) NewArrayNode.newUninitializedArray(Integer.TYPE, src.length);
97 ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, JavaKind.Int, HotSpotReplacementsUtil.getHeapWordSize(INJECTED_VMCONFIG));
98 return result;
99 }
100
101 @Snippet
102 public static float[] floatArrayClone(float[] src) {
103 float[] result = (float[]) NewArrayNode.newUninitializedArray(Float.TYPE, src.length);
104 ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, JavaKind.Float, HotSpotReplacementsUtil.getHeapWordSize(INJECTED_VMCONFIG));
105 return result;
106 }
107
108 @Snippet
109 public static long[] longArrayClone(long[] src) {
110 long[] result = (long[]) NewArrayNode.newUninitializedArray(Long.TYPE, src.length);
111 ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, JavaKind.Long, HotSpotReplacementsUtil.getHeapWordSize(INJECTED_VMCONFIG));
112 return result;
113 }
114
115 @Snippet
116 public static double[] doubleArrayClone(double[] src) {
117 double[] result = (double[]) NewArrayNode.newUninitializedArray(Double.TYPE, src.length);
118 ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, JavaKind.Double, HotSpotReplacementsUtil.getHeapWordSize(INJECTED_VMCONFIG));
119 return result;
120 }
121
122 @Snippet
123 public static Object[] objectArrayClone(Object[] src) {
124 /* Since this snippet is lowered early the array must be initialized */
125 Object[] result = (Object[]) DynamicNewArrayNode.newArray(GraalDirectives.guardingNonNull(src.getClass().getComponentType()), src.length, JavaKind.Object);
126 ArrayCopyCallNode.disjointUninitializedArraycopy(src, 0, result, 0, src.length, JavaKind.Object, HotSpotReplacementsUtil.getHeapWordSize(INJECTED_VMCONFIG));
127 return result;
128 }
129 }