/* Inline math functions for SPARC. Copyright (C) 1999, 2000, 2001, 2002, 2004, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. 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, 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> #ifdef __GNUC__ #if defined __USE_ISOC99 && !__GNUC_PREREQ (3, 0) # undef isgreater # undef isgreaterequal # undef isless # undef islessequal # undef islessgreater # undef isunordered # if __WORDSIZE == 32 # ifndef __NO_LONG_DOUBLE_MATH # 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 if (sizeof (x) <= 8 && sizeof (y) <= 8) \ { \ double __x = (x); double __y = (y); \ __asm__ ("fcmpd\t%1,%2\n\tst\t%%fsr,%0" : "=m" (__r) : "f" (__x), \ "f" (__y) : "cc"); \ } \ else \ { \ long double __x = (x); long double __y = (y); \ extern int _Q_cmp (const long double a, const long double b); \ __r = _Q_cmp (__x, __y) << 10; \ } \ __r; })) # else # 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; })) # endif # 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_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; } # if __WORDSIZE == 32 __MATH_INLINE int __NTH (__signbit (double __x)) { __extension__ union { double __d; int __i[2]; } __u = { __d: __x }; return __u.__i[0] < 0; } # ifndef __NO_LONG_DOUBLE_MATH __MATH_INLINE int __NTH (__signbitl (long double __x)) { __extension__ union { long double __l; int __i[4]; } __u = { __l: __x }; return __u.__i[0] < 0; } # else __MATH_INLINE int __NTH (__signbitl (long double __x)) { return __signbit ((double)__x); } # endif # else /* sparc64 */ __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 /* sparc64 */ # 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; } # if __WORDSIZE == 64 __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 /* sparc64 */ # 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; } # 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; } # 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 /* sparc64 */ # 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__ */