1 /*
2  * Copyright (c) 2014, 2014, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 only, as
7  * published by the Free Software Foundation.
8  *
9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
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17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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22  */
23 
24 
25 package org.graalvm.compiler.core.common.calc;
26 
27 import org.graalvm.compiler.debug.GraalError;
28 
29 public enum FloatConvert {
30     F2I(FloatConvertCategory.FloatingPointToInteger, 32),
31     D2I(FloatConvertCategory.FloatingPointToInteger, 64),
32     F2L(FloatConvertCategory.FloatingPointToInteger, 32),
33     D2L(FloatConvertCategory.FloatingPointToInteger, 64),
34     I2F(FloatConvertCategory.IntegerToFloatingPoint, 32),
35     L2F(FloatConvertCategory.IntegerToFloatingPoint, 64),
36     D2F(FloatConvertCategory.FloatingPointToFloatingPoint, 64),
37     I2D(FloatConvertCategory.IntegerToFloatingPoint, 32),
38     L2D(FloatConvertCategory.IntegerToFloatingPoint, 64),
39     F2D(FloatConvertCategory.FloatingPointToFloatingPoint, 32);
40 
41     private final FloatConvertCategory category;
42     private final int inputBits;
43 
FloatConvert(FloatConvertCategory category, int inputBits)44     FloatConvert(FloatConvertCategory category, int inputBits) {
45         this.category = category;
46         this.inputBits = inputBits;
47     }
48 
getCategory()49     public FloatConvertCategory getCategory() {
50         return category;
51     }
52 
reverse()53     public FloatConvert reverse() {
54         switch (this) {
55             case D2F:
56                 return F2D;
57             case D2I:
58                 return I2D;
59             case D2L:
60                 return L2D;
61             case F2D:
62                 return D2F;
63             case F2I:
64                 return I2F;
65             case F2L:
66                 return L2F;
67             case I2D:
68                 return D2I;
69             case I2F:
70                 return F2I;
71             case L2D:
72                 return D2L;
73             case L2F:
74                 return F2L;
75             default:
76                 throw GraalError.shouldNotReachHere();
77         }
78     }
79 
getInputBits()80     public int getInputBits() {
81         return inputBits;
82     }
83 }
84