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838b0da9 | 1 | /* fmaximum_mag_numf(). LoongArch version. |
6d7e8eda | 2 | Copyright (C) 2022-2023 Free Software Foundation, Inc. |
838b0da9 XT |
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 | <https://www.gnu.org/licenses/>. */ | |
18 | ||
19 | #define NO_MATH_REDIRECT | |
20 | #include <math.h> | |
21 | #include <libm-alias-float.h> | |
22 | #include <fpu_control.h> | |
23 | ||
24 | float | |
25 | __fmaximum_mag_numf (float x, float y) | |
26 | { | |
27 | int x_cond; | |
28 | int y_cond; | |
29 | asm volatile ("fclass.s \t%0, %1" : "=f" (x_cond) : "f" (x)); | |
30 | asm volatile ("fclass.s \t%0, %1" : "=f" (y_cond) : "f" (y)); | |
31 | ||
32 | if (__glibc_unlikely((x_cond & _FCLASS_NAN) && !(y_cond & _FCLASS_NAN))) | |
33 | { | |
34 | asm volatile ("fmaxa.s \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); | |
35 | return y; | |
36 | } | |
37 | else if (__glibc_unlikely(!(x_cond & _FCLASS_NAN) && (y_cond & _FCLASS_NAN))) | |
38 | { | |
39 | asm volatile ("fmaxa.s \t%0, %1, %2" : "=f" (y) : "f" (x), "f" (y)); | |
40 | return x; | |
41 | } | |
42 | else | |
43 | { | |
44 | asm volatile ("fmaxa.s \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); | |
45 | return x; | |
46 | } | |
47 | } | |
48 | libm_alias_float (__fmaximum_mag_num, fmaximum_mag_num) |