diff options
Diffstat (limited to 'sysdeps/loongarch/fpu/s_fmaximum.c')
| -rw-r--r-- | sysdeps/loongarch/fpu/s_fmaximum.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/sysdeps/loongarch/fpu/s_fmaximum.c b/sysdeps/loongarch/fpu/s_fmaximum.c new file mode 100644 index 0000000000..af1c2bf006 --- /dev/null +++ b/sysdeps/loongarch/fpu/s_fmaximum.c @@ -0,0 +1,40 @@ +/* fmaximum(). LoongArch version. + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#define NO_MATH_REDIRECT +#include <math.h> +#include <libm-alias-double.h> +#include <fpu_control.h> + +double +__fmaximum (double x, double y) +{ + int x_cond; + int y_cond; + asm volatile ("fclass.d \t%0, %1" : "=f" (x_cond) : "f" (x)); + asm volatile ("fclass.d \t%0, %1" : "=f" (y_cond) : "f" (y)); + + if (__glibc_unlikely((x_cond | y_cond) & _FCLASS_NAN)) + return x * y; + else + { + asm volatile ("fmax.d \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); + return x; + } +} +libm_alias_double (__fmaximum, fmaximum) |