/*
* 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.max.graal.snippets;
import com.oracle.max.graal.nodes.calc.*;
import com.sun.max.annotate.*;
/**
* 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 {
@JavacBug(id = 6995200)
Long result = ConvertNode.convert(ConvertNode.Op.MOV_D2L, value);
return result;
}
}
public static double longBitsToDouble(long bits) {
@JavacBug(id = 6995200)
Double result = ConvertNode.convert(ConvertNode.Op.MOV_L2D, bits);
return result;
}
}