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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/MonitorCounterNode.java @ 18425:b856446ff7e0

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Introduce StackSlotValue and VirtualStackSlot.
author Josef Eisl <josef.eisl@jku.at>
date Thu, 23 Oct 2014 14:55:04 +0200
parents c6086a18c9ce
children f57d86eb036f
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c9f45d2d96cf fixed bug in monitor snippets; they are now used for general lowering of monitor operations
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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 *
c9f45d2d96cf fixed bug in monitor snippets; they are now used for general lowering of monitor operations
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5 * This code is free software; you can redistribute it and/or modify it
c9f45d2d96cf fixed bug in monitor snippets; they are now used for general lowering of monitor operations
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6 * under the terms of the GNU General Public License version 2 only, as
c9f45d2d96cf fixed bug in monitor snippets; they are now used for general lowering of monitor operations
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7 * published by the Free Software Foundation.
c9f45d2d96cf fixed bug in monitor snippets; they are now used for general lowering of monitor operations
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8 *
c9f45d2d96cf fixed bug in monitor snippets; they are now used for general lowering of monitor operations
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
c9f45d2d96cf fixed bug in monitor snippets; they are now used for general lowering of monitor operations
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
c9f45d2d96cf fixed bug in monitor snippets; they are now used for general lowering of monitor operations
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
c9f45d2d96cf fixed bug in monitor snippets; they are now used for general lowering of monitor operations
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12 * version 2 for more details (a copy is included in the LICENSE file that
c9f45d2d96cf fixed bug in monitor snippets; they are now used for general lowering of monitor operations
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13 * accompanied this code).
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14 *
c9f45d2d96cf fixed bug in monitor snippets; they are now used for general lowering of monitor operations
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15 * You should have received a copy of the GNU General Public License version
c9f45d2d96cf fixed bug in monitor snippets; they are now used for general lowering of monitor operations
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16 * 2 along with this work; if not, write to the Free Software Foundation,
c9f45d2d96cf fixed bug in monitor snippets; they are now used for general lowering of monitor operations
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
c9f45d2d96cf fixed bug in monitor snippets; they are now used for general lowering of monitor operations
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18 *
c9f45d2d96cf fixed bug in monitor snippets; they are now used for general lowering of monitor operations
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c9f45d2d96cf fixed bug in monitor snippets; they are now used for general lowering of monitor operations
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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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fcabc0da42b0 enhanced support for reserving a block of memory on the stack such that the block can be a mix of primitive data and object pointers
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25 import java.util.*;
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26
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27 import com.oracle.graal.api.code.*;
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28 import com.oracle.graal.api.meta.*;
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cbd42807a31f moved NodeInfo and friends into separate com.oracle.graal.nodeinfo project so that annotation processor can be applied to the base Node class
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29 import com.oracle.graal.nodeinfo.*;
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30 import com.oracle.graal.nodes.calc.*;
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47e4d2e01c6e Split LIRGenerator and fix AMD64 backend.
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31 import com.oracle.graal.nodes.spi.*;
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2912b72d840a More complete and reusable Word type
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32 import com.oracle.graal.word.*;
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33
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34 /**
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35 * Node that is used to maintain a stack based counter of how many locks are currently held.
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36 */
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5d468add216f added @NodeInfo annotations to all Node classes
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37 @NodeInfo
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38 public class MonitorCounterNode extends FloatingNode implements LIRLowerable {
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39
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06c15e88d383 added factory method to all Node classes; replaced Node classes instantiation with calls to factory methods; replaced identity tests on Node classes with ' == <node class>.getGenClass()' idiom
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40 public static MonitorCounterNode create() {
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41 return new MonitorCounterNode();
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06c15e88d383 added factory method to all Node classes; replaced Node classes instantiation with calls to factory methods; replaced identity tests on Node classes with ' == <node class>.getGenClass()' idiom
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parents: 16841
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42 }
06c15e88d383 added factory method to all Node classes; replaced Node classes instantiation with calls to factory methods; replaced identity tests on Node classes with ' == <node class>.getGenClass()' idiom
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43
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845e881ce054 constructors in a Node class must be protected
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44 protected MonitorCounterNode() {
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4eec2ac671c2 Refactor the WordTypeVerificationPhase to use fewer graph iterations, and invoke it a fewer places
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45 super(null);
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46 }
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47
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48 @Override
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c260582ba074 Remove obsolete LIRGenResLowerable interface.
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49 public void generate(NodeLIRBuilderTool gen) {
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50 assert graph().getNodes().filter(MonitorCounterNode.class).count() == 1 : "monitor counters not canonicalized to single instance";
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b856446ff7e0 Introduce StackSlotValue and VirtualStackSlot.
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51 VirtualStackSlot counter = gen.getLIRGeneratorTool().getResult().getFrameMapBuilder().allocateStackSlots(1, new BitSet(0), null);
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52 Value result = gen.getLIRGeneratorTool().emitAddress(counter);
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53 gen.setResult(this, result);
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54 }
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55
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56 @NodeIntrinsic(setStampFromReturnType = true)
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0e20ad1ea98b removed WordStamp (and a nasty bug associated with its misusage)
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57 public static native Word counter();
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58 }