Mercurial > hg > graal-compiler
view graal/com.oracle.graal.snippets/src/com/oracle/graal/snippets/DoubleSnippets.java @ 6528:436a24c36abe
fixed imprecise dependencies
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 08 Oct 2012 17:18:31 +0200 |
parents | 69a8969dbf40 |
children | 8c163cfda1e5 |
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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.snippets; import com.oracle.graal.nodes.calc.*; /** * Snippets for {@link java.lang.Double} methods. */ @ClassSubstitution(java.lang.Double.class) public class DoubleSnippets implements SnippetsInterface { private static final long NAN_RAW_LONG_BITS = Double.doubleToRawLongBits(Double.NaN); public static long doubleToRawLongBits(double value) { @JavacBug(id = 6995200) Long result = ConvertNode.convert(ConvertNode.Op.MOV_D2L, value); return result; } // TODO This method is not necessary, since the JDK method does exactly this public static long doubleToLongBits(double value) { if (value != value) { return NAN_RAW_LONG_BITS; } else { return doubleToRawLongBits(value); } } public static double longBitsToDouble(long bits) { @JavacBug(id = 6995200) Double result = ConvertNode.convert(ConvertNode.Op.MOV_L2D, bits); return result; } }