Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/NewInstanceStubCall.java @ 6495:75f130f2b30f
moved AMD64 specific HotSpot code in com.oracle.graal.hotspot.amd64 project
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 03 Oct 2012 01:18:03 +0200 |
parents | 9892bfd8a48f |
children | 2a0c9f20baa1 |
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/* * Copyright (c) 2012, 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.nodes; import static com.oracle.graal.hotspot.HotSpotBackend.*; import com.oracle.graal.compiler.gen.*; import com.oracle.graal.compiler.target.*; import com.oracle.graal.hotspot.*; import com.oracle.graal.lir.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.type.*; /** * Node implementing a call to HotSpot's {@code new_instance} stub. */ public class NewInstanceStubCall extends FixedWithNextNode implements LIRGenLowerable { private static final Stamp defaultStamp = StampFactory.objectNonNull(); @Input private final ValueNode hub; public NewInstanceStubCall(ValueNode hub) { super(defaultStamp); this.hub = hub; } @Override public boolean inferStamp() { if (stamp() == defaultStamp && hub.isConstant()) { HotSpotKlassOop klassOop = (HotSpotKlassOop) this.hub.asConstant().asObject(); updateStamp(StampFactory.exactNonNull(klassOop.type)); return true; } return false; } @Override public void generate(LIRGenerator gen) { HotSpotBackend backend = (HotSpotBackend) HotSpotGraalRuntime.getInstance().getCompiler().backend; HotSpotStub stub = backend.getStub(NEW_INSTANCE_STUB_NAME); Variable result = gen.emitCall(stub.address, stub.cc, true, gen.operand(hub)); gen.setResult(this, result); } @NodeIntrinsic public static native Object call(Object hub); }