diff options
| -rw-r--r-- | sysdeps/loongarch/fpu/e_ilogb.c | 39 | ||||
| -rw-r--r-- | sysdeps/loongarch/fpu/e_ilogbf.c | 39 |
2 files changed, 78 insertions, 0 deletions
diff --git a/sysdeps/loongarch/fpu/e_ilogb.c b/sysdeps/loongarch/fpu/e_ilogb.c new file mode 100644 index 0000000000..f9ada6921a --- /dev/null +++ b/sysdeps/loongarch/fpu/e_ilogb.c @@ -0,0 +1,39 @@ +/* __ieee754_ilogb(). 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 <fpu_control.h> + +int +__ieee754_ilogb (double x) +{ + int x_cond; + asm volatile ("fclass.d \t%0, %1" : "=f" (x_cond) : "f" (x)); + + if (__glibc_unlikely (x_cond & _FCLASS_ZERO)) + return FP_ILOGB0; + else if (__glibc_unlikely (x_cond & ( _FCLASS_NAN | _FCLASS_INF))) + return FP_ILOGBNAN; + else + { + asm volatile ("fabs.d \t%0, %1" : "=f" (x) : "f" (x)); + asm volatile ("flogb.d \t%0, %1" : "=f" (x) : "f" (x)); + return x; + } +} diff --git a/sysdeps/loongarch/fpu/e_ilogbf.c b/sysdeps/loongarch/fpu/e_ilogbf.c new file mode 100644 index 0000000000..e1da48ecfc --- /dev/null +++ b/sysdeps/loongarch/fpu/e_ilogbf.c @@ -0,0 +1,39 @@ +/* __ieee754_ilogbf(). 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 <fpu_control.h> + +int +__ieee754_ilogbf (float x) +{ + int x_cond; + asm volatile ("fclass.s \t%0, %1" : "=f" (x_cond) : "f" (x)); + + if (__glibc_unlikely (x_cond & _FCLASS_ZERO)) + return FP_ILOGB0; + else if (__glibc_unlikely (x_cond & ( _FCLASS_NAN | _FCLASS_INF))) + return FP_ILOGBNAN; + else + { + asm volatile ("fabs.s \t%0, %1" : "=f" (x) : "f" (x)); + asm volatile ("flogb.s \t%0, %1" : "=f" (x) : "f" (x)); + return x; + } +} |