Mercurial > hg > graal-compiler
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/CurrentLockNode.java @ 16919:0fe4732e5181
made use of generated Node classes predicated on value of graal.useGeneratedNodes system property (default is false)
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 25 Aug 2014 13:45:12 +0200 |
parents | 06c15e88d383 |
children | ffb974bef674 |
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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 com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.hotspot.*; import com.oracle.graal.nodeinfo.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.word.*; /** * Intrinsic for getting the lock in the current {@linkplain BeginLockScopeNode lock scope}. */ @NodeInfo public class CurrentLockNode extends FixedWithNextNode implements LIRLowerable { private int lockDepth; public static CurrentLockNode create(int lockDepth) { return USE_GENERATED_NODES ? new CurrentLockNodeGen(lockDepth) : new CurrentLockNode(lockDepth); } CurrentLockNode(int lockDepth) { super(null); this.lockDepth = lockDepth; } @Override public void generate(NodeLIRBuilderTool gen) { assert lockDepth != -1; HotSpotLIRGenerator hsGen = (HotSpotLIRGenerator) gen.getLIRGeneratorTool(); StackSlot slot = hsGen.getLockSlot(lockDepth); // The register allocator cannot handle stack -> register moves so we use an LEA here Value result = gen.getLIRGeneratorTool().emitMove(gen.getLIRGeneratorTool().emitAddress(slot)); gen.setResult(this, result); } @NodeIntrinsic(setStampFromReturnType = true) public static native Word currentLock(@ConstantNodeParameter int lockDepth); }