diff options
Diffstat (limited to 'sysdeps/sparc/fpu/bits/mathinline.h')
| -rw-r--r-- | sysdeps/sparc/fpu/bits/mathinline.h | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/sysdeps/sparc/fpu/bits/mathinline.h b/sysdeps/sparc/fpu/bits/mathinline.h new file mode 100644 index 0000000000..9017be3544 --- /dev/null +++ b/sysdeps/sparc/fpu/bits/mathinline.h @@ -0,0 +1,211 @@ +/* Inline math functions for SPARC. + Copyright (C) 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek <jj@ultra.linux.cz>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _MATH_H +# error "Never use <bits/mathinline.h> directly; include <math.h> instead." +#endif + +#include <bits/wordsize.h> + +#if defined __GNUC__ + +#ifdef __USE_ISOC9X + +#if __WORDSIZE == 32 + +# define __unordered_cmp(x, y) \ + (__extension__ \ + ({ unsigned __r; \ + if (sizeof(x) == 4 && sizeof(y) == 4) \ + { \ + float __x = (x); float __y = (y); \ + __asm__("fcmps %1,%2; st %%fsr, %0" : "=m" (__r) : "f" (__x), \ + "f" (__y) : "cc"); \ + } \ + else \ + { \ + double __x = (x); double __y = (y); \ + __asm__("fcmpd\t%1,%2\n\tst\t%%fsr,%0" : "=m" (__r) : "f" (__x), \ + "f" (__y) : "cc"); \ + } \ + __r; })) + +# define isgreater(x, y) ((__unordered_cmp (x, y) & (3 << 10)) == (2 << 10)) +# define isgreaterequal(x, y) ((__unordered_cmp (x, y) & (1 << 10)) == 0) +# define isless(x, y) ((__unordered_cmp (x, y) & (3 << 10)) == (1 << 10)) +# define islessequal(x, y) ((__unordered_cmp (x, y) & (2 << 10)) == 0) +# define islessgreater(x, y) (((__unordered_cmp (x, y) + (1 << 10)) & (2 << 10)) != 0) +# define isunordered(x, y) ((__unordered_cmp (x, y) & (3 << 10)) == (3 << 10)) + +#else /* sparc64 */ + +# 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 /* sparc64 */ + +#endif /* __USE_ISOC9X */ + +#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__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 7)) + /* Test for negative number. Used in the signbit() macro. */ +__MATH_INLINE int +__signbitf (float __x) +{ + __extension__ union { float __f; int __i; } __u = { __f: __x }; + return __u.__i < 0; +} + +__MATH_INLINE int +__signbit (double __x) +{ + __extension__ union { double __d; int __i[2]; } __u = { __d: __x }; + return __u.__i[0] < 0; +} + +__MATH_INLINE int +__signbitl (long double __x) +{ + if (sizeof(long double) == 8) + { + __extension__ union { long double __l; int __i[2]; } __u = { __l: __x }; + return __u.__i[0] < 0; + } + else + { + __extension__ union { long double __l; int __i[4]; } __u = { __l: __x }; + return __u.__i[0] < 0; + } +} + +__MATH_INLINE double +sqrt(double __x) +{ + register double __r; + __asm ("fsqrtd %1,%0" : "=f" (__r) : "f" (__x)); + return __r; +} + +__MATH_INLINE float +sqrtf(float __x) +{ + register float __r; + __asm ("fsqrts %1,%0" : "=f" (__r) : "f" (__x)); + return __r; +} + +#if __WORDSIZE == 64 +__MATH_INLINE long double +sqrtl(long double __x) +{ + long double __r; + extern void _Qp_sqrt(long double *, __const__ long double *); + _Qp_sqrt(&__r, &__x); + return __r; +} +#endif /* sparc64 */ + +/* 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; +} + +#if __WORDSIZE == 64 +__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; +} +#endif /* sparc64 */ +#endif /* __LIBC_INTERNAL_MATH_INLINES */ +#endif /* gcc 2.8+ */ + +#ifdef __USE_ISOC9X + +__MATH_INLINE double fdim (double __x, double __y); +__MATH_INLINE double +fdim (double __x, double __y) +{ + return __x < __y ? 0 : __x - __y; +} + +__MATH_INLINE float fdimf (float __x, float __y); +__MATH_INLINE float +fdimf (float __x, float __y) +{ + return __x < __y ? 0 : __x - __y; +} + +#endif /* __USE_ISOC9X */ +#endif /* !__NO_MATH_INLINES && __OPTIMIZE__ */ +#endif /* __GNUC__ */ |