Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/SLTypes.java @ 13654:32af063cc29c
Don't create null guards for values that are already known to be non-null.
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Thu, 16 Jan 2014 12:18:29 +0100 |
parents | 71991b7a0f14 |
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1 /* |
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2 * Copyright (c) 2012, 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.truffle.sl; |
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24 |
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25 import java.math.*; |
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26 |
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27 import com.oracle.truffle.api.*; |
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28 import com.oracle.truffle.api.dsl.*; |
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29 import com.oracle.truffle.sl.runtime.*; |
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30 |
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31 @TypeSystem({int.class, BigInteger.class, boolean.class, String.class, CallTarget.class, SLNull.class, Object[].class}) |
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32 public class SLTypes { |
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33 |
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34 @TypeCheck |
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35 public boolean isSLNull(Object value) { |
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36 return SLNull.INSTANCE == value; |
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37 } |
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38 |
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39 @TypeCast |
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40 public SLNull asSLNull(Object value) { |
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41 assert isSLNull(value); |
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42 return SLNull.INSTANCE; |
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43 } |
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44 |
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45 @ImplicitCast |
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46 public BigInteger castBigInteger(int integer) { |
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47 return BigInteger.valueOf(integer); |
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48 } |
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49 |
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50 } |