sysdeps/sparc/fpu/bits/mathinline.h

   1 /* Inline math functions for SPARC.
   2    Copyright (C) 1999-2017 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Jakub Jelinek <jakub@redhat.com>.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef _MATH_H
  21 # error "Never use <bits/mathinline.h> directly; include <math.h> instead."
  22 #endif
  23
  24 #include <bits/wordsize.h>
  25
  26 #ifdef __GNUC__
  27
  28 #if (!defined __NO_MATH_INLINES || defined __LIBC_INTERNAL_MATH_INLINES) && defined __OPTIMIZE__
  29
  30 # ifndef __extern_inline
  31 #  define __MATH_INLINE __inline
  32 # else
  33 #  define __MATH_INLINE __extern_inline
  34 # endif  /* __cplusplus */
  35
  36 /* The gcc, version 2.7 or below, has problems with all this inlining
  37    code.  So disable it for this version of the compiler.  */
  38 # if __GNUC_PREREQ (2, 8)
  39
  40 #  if !defined __NO_MATH_INLINES && !__GNUC_PREREQ (3, 2)
  41
  42 __MATH_INLINE double
  43 __NTH (sqrt (double __x))
  44 {
  45   register double __r;
  46   __asm ("fsqrtd %1,%0" : "=f" (__r) : "f" (__x));
  47   return __r;
  48 }
  49
  50 __MATH_INLINE float
  51 __NTH (sqrtf (float __x))
  52 {
  53   register float __r;
  54   __asm ("fsqrts %1,%0" : "=f" (__r) : "f" (__x));
  55   return __r;
  56 }
  57
  58 #   if __WORDSIZE == 64
  59 __MATH_INLINE long double
  60 __NTH (sqrtl (long double __x))
  61 {
  62   long double __r;
  63   extern void _Qp_sqrt (long double *, const long double *);
  64   _Qp_sqrt (&__r, &__x);
  65   return __r;
  66 }
  67 #   elif !defined __NO_LONG_DOUBLE_MATH
  68 __MATH_INLINE long double
  69 sqrtl (long double __x) __THROW
  70 {
  71   extern long double _Q_sqrt (const long double);
  72   return _Q_sqrt (__x);
  73 }
  74 #   endif /* sparc64 */
  75
  76 #  endif /* !__NO_MATH_INLINES && !GCC 3.2+ */
  77
  78 /* This code is used internally in the GNU libc.  */
  79 #  ifdef __LIBC_INTERNAL_MATH_INLINES
  80 __MATH_INLINE double
  81 __ieee754_sqrt (double __x)
  82 {
  83   register double __r;
  84   __asm ("fsqrtd %1,%0" : "=f" (__r) : "f" (__x));
  85   return __r;
  86 }
  87
  88 __MATH_INLINE float
  89 __ieee754_sqrtf (float __x)
  90 {
  91   register float __r;
  92   __asm ("fsqrts %1,%0" : "=f" (__r) : "f" (__x));
  93   return __r;
  94 }
  95
  96 #   if __WORDSIZE == 64
  97 __MATH_INLINE long double
  98 __ieee754_sqrtl (long double __x)
  99 {
 100   long double __r;
 101   extern void _Qp_sqrt (long double *, const long double *);
 102   _Qp_sqrt(&__r, &__x);
 103   return __r;
 104 }
 105 #   elif !defined __NO_LONG_DOUBLE_MATH
 106 __MATH_INLINE long double
 107 __ieee754_sqrtl (long double __x)
 108 {
 109   extern long double _Q_sqrt (const long double);
 110   return _Q_sqrt (__x);
 111 }
 112 #   endif /* sparc64 */
 113 #  endif /* __LIBC_INTERNAL_MATH_INLINES */
 114 # endif /* gcc 2.8+ */
 115
 116 # ifdef __USE_ISOC99
 117
 118 #  ifndef __NO_MATH_INLINES
 119
 120 __MATH_INLINE double __NTH (fdim (double __x, double __y));
 121 __MATH_INLINE double
 122 __NTH (fdim (double __x, double __y))
 123 {
 124   return __x <= __y ? 0 : __x - __y;
 125 }
 126
 127 __MATH_INLINE float __NTH (fdimf (float __x, float __y));
 128 __MATH_INLINE float
 129 __NTH (fdimf (float __x, float __y))
 130 {
 131   return __x <= __y ? 0 : __x - __y;
 132 }
 133
 134 #  endif /* !__NO_MATH_INLINES */
 135 # endif /* __USE_ISOC99 */
 136 #endif /* !__NO_MATH_INLINES && __OPTIMIZE__ */
 137 #endif /* __GNUC__ */