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001b09a6 | 1 | /* Multiple versions of llroundf. |
688903eb | 2 | Copyright (C) 2017-2018 Free Software Foundation, Inc. |
001b09a6 RS |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
17 | <http://www.gnu.org/licenses/>. */ | |
18 | /* Redefine lroundf/__lroundf so that the compiler won't complain about | |
19 | the type mismatch with the IFUNC selector in strong_alias below. */ | |
20 | #define lroundf __hidden_lroundf | |
21 | #define __lroundf __hidden___lroundf | |
22 | ||
23 | #include <math.h> | |
24 | #undef lroundf | |
25 | #undef __lroundf | |
26 | #include "init-arch.h" | |
216933b2 | 27 | #include <libm-alias-float.h> |
001b09a6 RS |
28 | |
29 | extern __typeof (__llroundf) __llroundf_ppc64 attribute_hidden; | |
30 | extern __typeof (__llroundf) __llround_power6x attribute_hidden; | |
31 | extern __typeof (__llroundf) __llround_power8 attribute_hidden; | |
32 | ||
33 | /* The ppc64 ABI passes float and double parameters in 64bit floating point | |
34 | registers (at least up to a point) as IEEE binary64 format, so effectively | |
35 | of "double" type. Both l[l]round and l[l]roundf return long type. So these | |
36 | functions have identical signatures and functionality, and can use a | |
37 | single implementation. */ | |
38 | libc_ifunc (__llroundf, | |
39 | (hwcap2 & PPC_FEATURE2_ARCH_2_07) | |
40 | ? __llround_power8 : | |
41 | (hwcap & PPC_FEATURE_POWER6_EXT) | |
42 | ? __llround_power6x | |
43 | : __llroundf_ppc64); | |
44 | ||
216933b2 | 45 | libm_alias_float (__llround, llround) |
001b09a6 | 46 | strong_alias (__llroundf, __lroundf) |
216933b2 | 47 | libm_alias_float (__lround, lround) |