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1 /* Copyright (C) 2008, 2009 Free Software Foundation, Inc.
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2
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3 This file is part of GCC.
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4
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5 GCC is free software; you can redistribute it and/or modify it under
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6 the terms of the GNU General Public License as published by the Free
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7 Software Foundation; either version 3, or (at your option) any later
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8 version.
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9
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10 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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11 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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13 for more details.
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14
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15 Under Section 7 of GPL version 3, you are granted additional
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16 permissions described in the GCC Runtime Library Exception, version
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17 3.1, as published by the Free Software Foundation.
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18
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19 You should have received a copy of the GNU General Public License and
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20 a copy of the GCC Runtime Library Exception along with this program;
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21 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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22 <http://www.gnu.org/licenses/>. */
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23
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24 union _FP_UNION_Q
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25 {
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26 __float128 flt;
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27 struct
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28 {
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29 unsigned long frac0 : 32;
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30 unsigned long frac1 : 32;
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31 unsigned long frac2 : 32;
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32 unsigned long frac3 : 16;
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33 unsigned exp : 15;
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34 unsigned sign : 1;
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35 } bits __attribute__((packed));
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36 };
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37
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38 __float128 __copysigntf3 (__float128, __float128);
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39 __float128 __fabstf2 (__float128);
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40
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41 __float128
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42 __copysigntf3 (__float128 a, __float128 b)
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43 {
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44 union _FP_UNION_Q A, B;
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45
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46 A.flt = a;
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47 B.flt = b;
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48 A.bits.sign = B.bits.sign;
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49
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50 return A.flt;
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51 }
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52
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53 __float128
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54 __fabstf2 (__float128 a)
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55 {
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56 union _FP_UNION_Q A;
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57
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58 A.flt = a;
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59 A.bits.sign = 0;
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60
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61 return A.flt;
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62 }
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