Mercurial > hg > graal-compiler
view graal/com.oracle.graal.snippets/src/com/oracle/graal/replacements/FloatSubstitutions.java @ 8415:2361bf148c06
rename packages: *snippets* -> *replacements*
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 20 Mar 2013 22:23:14 +0100 |
parents | graal/com.oracle.graal.snippets/src/com/oracle/graal/snippets/FloatSubstitutions.java@fe9f252f0d05 |
children |
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/* * Copyright (c) 2011, 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.replacements; import com.oracle.graal.nodes.calc.*; import com.oracle.graal.replacements.ClassSubstitution.*; /** * Substitutions for {@link java.lang.Float} methods. */ @ClassSubstitution(java.lang.Float.class) public class FloatSubstitutions { private static final int NAN_RAW_INT_BITS = Float.floatToRawIntBits(Float.NaN); @MethodSubstitution public static int floatToRawIntBits(float value) { @JavacBug(id = 6995200) Integer result = ConvertNode.convert(ConvertNode.Op.MOV_F2I, value); return result; } // TODO This method is not necessary, since the JDK method does exactly this @MethodSubstitution public static int floatToIntBits(float value) { if (value != value) { return NAN_RAW_INT_BITS; } else { return floatToRawIntBits(value); } } @MethodSubstitution public static float intBitsToFloat(int bits) { @JavacBug(id = 6995200) Float result = ConvertNode.convert(ConvertNode.Op.MOV_I2F, bits); return result; } }