diff options
Diffstat (limited to 'libc/sysdeps/linux/sparc64/bits/mathinline.h')
| -rw-r--r-- | libc/sysdeps/linux/sparc64/bits/mathinline.h | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/sparc64/bits/mathinline.h b/libc/sysdeps/linux/sparc64/bits/mathinline.h new file mode 100644 index 000000000..8bb35f6d8 --- /dev/null +++ b/libc/sysdeps/linux/sparc64/bits/mathinline.h @@ -0,0 +1,197 @@ +/* Inline math functions for SPARC. + Copyright (C) 1999, 2000, 2001, 2002, 2004, 2006 + Free Software Foundation, Inc. + Contributed by Jakub Jelinek <jakub@redhat.com>. + + 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 + <http://www.gnu.org/licenses/>. */ + +#ifndef _MATH_H +# error "Never use <bits/mathinline.h> directly; include <math.h> instead." +#endif + +#ifdef __GNUC__ + +#if defined __USE_ISOC99 && !__GNUC_PREREQ (3, 0) +# undef isgreater +# undef isgreaterequal +# undef isless +# undef islessequal +# undef islessgreater +# undef isunordered + +# define __unordered_v9cmp(x, y, op, qop) \ + (__extension__ \ + ({ unsigned __r; \ + if (sizeof (x) == 4 && sizeof (y) == 4) \ + { \ + float __x = (x); float __y = (y); \ + __asm__ ("fcmps\t%%fcc3,%1,%2\n\tmov" op "\t%%fcc3,1,%0" \ + : "=r" (__r) : "f" (__x), "f" (__y), "0" (0) : "cc"); \ + } \ + else if (sizeof (x) <= 8 && sizeof (y) <= 8) \ + { \ + double __x = (x); double __y = (y); \ + __asm__ ("fcmpd\t%%fcc3,%1,%2\n\tmov" op "\t%%fcc3,1,%0" \ + : "=r" (__r) : "f" (__x), "f" (__y), "0" (0) : "cc"); \ + } \ + else \ + { \ + long double __x = (x); long double __y = (y); \ + extern int _Qp_cmp (const long double *a, const long double *b); \ + __r = qop; \ + } \ + __r; })) + +# define isgreater(x, y) __unordered_v9cmp(x, y, "g", _Qp_cmp (&__x, &__y) == 2) +# define isgreaterequal(x, y) __unordered_v9cmp(x, y, "ge", (_Qp_cmp (&__x, &__y) & 1) == 0) +# define isless(x, y) __unordered_v9cmp(x, y, "l", _Qp_cmp (&__x, &__y) == 1) +# define islessequal(x, y) __unordered_v9cmp(x, y, "le", (_Qp_cmp (&__x, &__y) & 2) == 0) +# define islessgreater(x, y) __unordered_v9cmp(x, y, "lg", ((_Qp_cmp (&__x, &__y) + 1) & 2) != 0) +# define isunordered(x, y) __unordered_v9cmp(x, y, "u", _Qp_cmp (&__x, &__y) == 3) + +#endif /* __USE_ISOC99 */ + +#if (!defined __NO_MATH_INLINES || defined __LIBC_INTERNAL_MATH_INLINES) && defined __OPTIMIZE__ + +# ifdef __cplusplus +# define __MATH_INLINE __inline +# else +# define __MATH_INLINE __extern_inline +# endif /* __cplusplus */ + +/* The gcc, version 2.7 or below, has problems with all this inlining + code. So disable it for this version of the compiler. */ +# if __GNUC_PREREQ (2, 8) + +# ifdef __USE_ISOC99 + +/* Test for negative number. Used in the signbit() macro. */ +__MATH_INLINE int +__NTH (__signbitf (float __x)) +{ + __extension__ union { float __f; int __i; } __u = { __f: __x }; + return __u.__i < 0; +} + +__MATH_INLINE int +__NTH (__signbit (double __x)) +{ + __extension__ union { double __d; long int __i; } __u = { __d: __x }; + return __u.__i < 0; +} + +__MATH_INLINE int +__NTH (__signbitl (long double __x)) +{ + __extension__ union { long double __l; long int __i[2]; } __u = { __l: __x }; + return __u.__i[0] < 0; +} + +# endif /* __USE_ISOC99 */ + +# if !defined __NO_MATH_INLINES && !__GNUC_PREREQ (3, 2) + +__MATH_INLINE double +__NTH (sqrt (double __x)) +{ + register double __r; + __asm__ ("fsqrtd %1,%0" : "=f" (__r) : "f" (__x)); + return __r; +} + +__MATH_INLINE float +__NTH (sqrtf (float __x)) +{ + register float __r; + __asm__ ("fsqrts %1,%0" : "=f" (__r) : "f" (__x)); + return __r; +} + +__MATH_INLINE long double +__NTH (sqrtl (long double __x)) +{ + long double __r; + extern void _Qp_sqrt (long double *, __const__ long double *); + _Qp_sqrt (&__r, &__x); + return __r; +} +# elif !defined __NO_LONG_DOUBLE_MATH +__MATH_INLINE long double +sqrtl (long double __x) __THROW +{ + extern long double _Q_sqrt (__const__ long double); + return _Q_sqrt (__x); +} + +# endif /* !__NO_MATH_INLINES && !GCC 3.2+ */ + +/* This code is used internally in the GNU libc. */ +# ifdef __LIBC_INTERNAL_MATH_INLINES +__MATH_INLINE double +__ieee754_sqrt (double __x) +{ + register double __r; + __asm__ ("fsqrtd %1,%0" : "=f" (__r) : "f" (__x)); + return __r; +} + +__MATH_INLINE float +__ieee754_sqrtf (float __x) +{ + register float __r; + __asm__ ("fsqrts %1,%0" : "=f" (__r) : "f" (__x)); + return __r; +} + +__MATH_INLINE long double +__ieee754_sqrtl (long double __x) +{ + long double __r; + extern void _Qp_sqrt (long double *, __const__ long double *); + _Qp_sqrt(&__r, &__x); + return __r; +} +# elif !defined __NO_LONG_DOUBLE_MATH +__MATH_INLINE long double +__ieee754_sqrtl (long double __x) +{ + extern long double _Q_sqrt (__const__ long double); + return _Q_sqrt (__x); +} +# endif /* __LIBC_INTERNAL_MATH_INLINES */ +# endif /* gcc 2.8+ */ + +# ifdef __USE_ISOC99 + +# ifndef __NO_MATH_INLINES + +__MATH_INLINE double __NTH (fdim (double __x, double __y)); +__MATH_INLINE double +__NTH (fdim (double __x, double __y)) +{ + return __x <= __y ? 0 : __x - __y; +} + +__MATH_INLINE float __NTH (fdimf (float __x, float __y)); +__MATH_INLINE float +__NTH (fdimf (float __x, float __y)) +{ + return __x <= __y ? 0 : __x - __y; +} + +# endif /* !__NO_MATH_INLINES */ +# endif /* __USE_ISOC99 */ +#endif /* !__NO_MATH_INLINES && __OPTIMIZE__ */ +#endif /* __GNUC__ */ |