Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/ObjectCloneSnippets.java @ 18689:8923610115c9
Capture worst case element type for Array.newInstance if known
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
---|---|
date | Mon, 15 Dec 2014 13:10:44 -0800 |
parents | 5afa718edb8b |
children | 14e703edb2ab |
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/* * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.graal.hotspot.replacements; import java.lang.reflect.*; import java.util.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.common.*; import com.oracle.graal.hotspot.replacements.arraycopy.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.java.*; import com.oracle.graal.replacements.*; public class ObjectCloneSnippets implements Snippets { public static final EnumMap<Kind, Method> arrayCloneMethods = new EnumMap<>(Kind.class); static { arrayCloneMethods.put(Kind.Boolean, getCloneMethod("booleanArrayClone", boolean[].class)); arrayCloneMethods.put(Kind.Byte, getCloneMethod("byteArrayClone", byte[].class)); arrayCloneMethods.put(Kind.Char, getCloneMethod("charArrayClone", char[].class)); arrayCloneMethods.put(Kind.Short, getCloneMethod("shortArrayClone", short[].class)); arrayCloneMethods.put(Kind.Int, getCloneMethod("intArrayClone", int[].class)); arrayCloneMethods.put(Kind.Float, getCloneMethod("floatArrayClone", float[].class)); arrayCloneMethods.put(Kind.Long, getCloneMethod("longArrayClone", long[].class)); arrayCloneMethods.put(Kind.Double, getCloneMethod("doubleArrayClone", double[].class)); arrayCloneMethods.put(Kind.Object, getCloneMethod("objectArrayClone", Object[].class)); } private static Method getCloneMethod(String name, Class<?> param) { try { return ObjectCloneSnippets.class.getDeclaredMethod(name, param); } catch (SecurityException | NoSuchMethodException e) { throw new GraalInternalError(e); } } @Snippet(removeAllFrameStates = true) public static boolean[] booleanArrayClone(boolean[] src) { boolean[] result = (boolean[]) NewArrayNode.newUninitializedArray(Boolean.TYPE, src.length); ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, Kind.Boolean); return result; } @Snippet(removeAllFrameStates = true) public static byte[] byteArrayClone(byte[] src) { byte[] result = (byte[]) NewArrayNode.newUninitializedArray(Byte.TYPE, src.length); ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, Kind.Byte); return result; } @Snippet(removeAllFrameStates = true) public static short[] shortArrayClone(short[] src) { short[] result = (short[]) NewArrayNode.newUninitializedArray(Short.TYPE, src.length); ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, Kind.Short); return result; } @Snippet(removeAllFrameStates = true) public static char[] charArrayClone(char[] src) { char[] result = (char[]) NewArrayNode.newUninitializedArray(Character.TYPE, src.length); ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, Kind.Char); return result; } @Snippet(removeAllFrameStates = true) public static int[] intArrayClone(int[] src) { int[] result = (int[]) NewArrayNode.newUninitializedArray(Integer.TYPE, src.length); ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, Kind.Int); return result; } @Snippet(removeAllFrameStates = true) public static float[] floatArrayClone(float[] src) { float[] result = (float[]) NewArrayNode.newUninitializedArray(Float.TYPE, src.length); ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, Kind.Float); return result; } @Snippet(removeAllFrameStates = true) public static long[] longArrayClone(long[] src) { long[] result = (long[]) NewArrayNode.newUninitializedArray(Long.TYPE, src.length); ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, Kind.Long); return result; } @Snippet(removeAllFrameStates = true) public static double[] doubleArrayClone(double[] src) { double[] result = (double[]) NewArrayNode.newUninitializedArray(Double.TYPE, src.length); ArrayCopyCallNode.disjointArraycopy(src, 0, result, 0, src.length, Kind.Double); return result; } @Snippet(removeAllFrameStates = true) public static Object[] objectArrayClone(Object[] src) { Object[] result = (Object[]) DynamicNewArrayNode.newUninitializedArray(GuardingPiNode.guardingNonNull(src.getClass().getComponentType()), src.length, Kind.Object); ArrayCopyCallNode.disjointUninitializedArraycopy(src, 0, result, 0, src.length, Kind.Object); return result; } }