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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/NewArrayStubCall.java @ 6495:75f130f2b30f

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moved AMD64 specific HotSpot code in com.oracle.graal.hotspot.amd64 project
author Doug Simon <doug.simon@oracle.com>
date Wed, 03 Oct 2012 01:18:03 +0200
parents 9892bfd8a48f
children 2a0c9f20baa1
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1 /*
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2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.hotspot.nodes;
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24
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25 import static com.oracle.graal.hotspot.HotSpotBackend.*;
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26
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27 import com.oracle.graal.compiler.gen.*;
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28 import com.oracle.graal.compiler.target.*;
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29 import com.oracle.graal.hotspot.*;
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30 import com.oracle.graal.lir.*;
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31 import com.oracle.graal.nodes.*;
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32 import com.oracle.graal.nodes.type.*;
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33
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34 /**
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35 * Node implementing a call to HotSpot's {@code new_[object|type]_array} stub.
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36 */
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37 public class NewArrayStubCall extends FixedWithNextNode implements LIRGenLowerable {
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38
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39 private static final Stamp defaultStamp = StampFactory.objectNonNull();
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40
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41 @Input private final ValueNode hub;
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42 @Input private final ValueNode length;
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43 private final boolean isObjectArray;
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44
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45 public NewArrayStubCall(boolean isObjectArray, ValueNode hub, ValueNode length) {
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46 super(defaultStamp);
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47 this.isObjectArray = isObjectArray;
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48 this.hub = hub;
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49 this.length = length;
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50 }
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51
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52 @Override
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53 public boolean inferStamp() {
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54 if (stamp() == defaultStamp && hub.isConstant()) {
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55 HotSpotKlassOop klassOop = (HotSpotKlassOop) this.hub.asConstant().asObject();
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56 updateStamp(StampFactory.exactNonNull(klassOop.type));
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57 return true;
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58 }
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59 return false;
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60 }
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61
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62 @Override
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63 public void generate(LIRGenerator gen) {
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64 HotSpotBackend backend = (HotSpotBackend) HotSpotGraalRuntime.getInstance().getCompiler().backend;
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65 HotSpotStub stub = backend.getStub(isObjectArray ? NEW_OBJECT_ARRAY_STUB_NAME : NEW_TYPE_ARRAY_STUB_NAME);
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66 Variable result = gen.emitCall(stub.address, stub.cc, true, gen.operand(hub), gen.operand(length));
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67 gen.setResult(this, result);
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68 }
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69
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70 @NodeIntrinsic
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71 public static native Object call(@ConstantNodeParameter boolean isObjectArray, Object hub, int length);
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72 }