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annotate graal/com.oracle.graal.replacements/src/com/oracle/graal/replacements/FloatSubstitutions.java @ 14816:836d558c3a5f

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Create Baseline version of doBlock in LIRGenerator.
author Josef Eisl <josef.eisl@jku.at>
date Wed, 19 Mar 2014 15:14:37 +0100
parents 9334392ed279
children
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1 /*
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2 * Copyright (c) 2011, 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.graal.replacements;
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25 import com.oracle.graal.api.meta.*;
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26 import com.oracle.graal.api.replacements.*;
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27 import com.oracle.graal.nodes.calc.*;
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29 /**
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30 * Substitutions for {@link java.lang.Float} methods.
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31 */
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32 @ClassSubstitution(java.lang.Float.class)
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33 public class FloatSubstitutions {
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35 private static final int NAN_RAW_INT_BITS = Float.floatToRawIntBits(Float.NaN);
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37 @MethodSubstitution
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38 public static int floatToRawIntBits(float value) {
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39 return ReinterpretNode.reinterpret(Kind.Int, value);
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40 }
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42 // TODO This method is not necessary, since the JDK method does exactly this
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43 @MethodSubstitution
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44 public static int floatToIntBits(float value) {
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45 if (value != value) {
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46 return NAN_RAW_INT_BITS;
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47 } else {
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48 return floatToRawIntBits(value);
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49 }
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50 }
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51
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52 @MethodSubstitution
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53 public static float intBitsToFloat(int bits) {
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54 return ReinterpretNode.reinterpret(Kind.Float, bits);
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55 }
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56 }