Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/builtins/SLHelloEqualsWorldBuiltin.java @ 21106:ec894427332d
Don't insert serial barriers for null stores
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Thu, 23 Apr 2015 12:55:54 -0700 |
parents | b4e38f4ca414 |
children | b1530a6cce8c |
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1 /* |
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2 * Copyright (c) 2012, 2014, 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.truffle.sl.builtins; |
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24 |
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25 import com.oracle.truffle.api.*; |
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26 import com.oracle.truffle.api.CompilerDirectives.*; |
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27 import com.oracle.truffle.api.dsl.*; |
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28 import com.oracle.truffle.api.frame.*; |
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29 import com.oracle.truffle.api.frame.FrameInstance.FrameAccess; |
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30 import com.oracle.truffle.api.nodes.*; |
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31 import com.oracle.truffle.api.source.*; |
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32 |
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33 /** |
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34 * This builtin sets the variable named "hello" in the caller frame to the string "world". |
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35 */ |
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36 @NodeInfo(shortName = "helloEqualsWorld") |
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37 public abstract class SLHelloEqualsWorldBuiltin extends SLBuiltinNode { |
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38 |
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39 public SLHelloEqualsWorldBuiltin() { |
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40 super(new NullSourceSection("SL builtin", "helloEqualsWorld")); |
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41 } |
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42 |
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43 @Specialization |
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44 @TruffleBoundary |
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45 public String change() { |
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46 FrameInstance frameInstance = Truffle.getRuntime().getCallerFrame(); |
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47 Frame frame = frameInstance.getFrame(FrameAccess.READ_WRITE, false); |
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48 FrameSlot slot = frame.getFrameDescriptor().findOrAddFrameSlot("hello"); |
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49 frame.setObject(slot, "world"); |
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50 return "world"; |
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51 } |
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52 } |