projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 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) |