1999-07-14 00:54:57 +00:00
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/* Inline math functions for SPARC.
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2000-06-04 16:11:43 +00:00
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Copyright (C) 1999, 2000 Free Software Foundation, Inc.
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1999-07-14 00:54:57 +00:00
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jj@ultra.linux.cz>.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _MATH_H
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# error "Never use <bits/mathinline.h> directly; include <math.h> instead."
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#endif
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#include <bits/wordsize.h>
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#if defined __GNUC__
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1999-10-31 17:37:43 +00:00
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#ifdef __USE_ISOC99
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1999-07-14 00:54:57 +00:00
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#if __WORDSIZE == 32
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# define __unordered_cmp(x, y) \
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(__extension__ \
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({ unsigned __r; \
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if (sizeof(x) == 4 && sizeof(y) == 4) \
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{ \
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float __x = (x); float __y = (y); \
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__asm__("fcmps %1,%2; st %%fsr, %0" : "=m" (__r) : "f" (__x), \
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"f" (__y) : "cc"); \
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} \
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else \
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{ \
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double __x = (x); double __y = (y); \
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__asm__("fcmpd\t%1,%2\n\tst\t%%fsr,%0" : "=m" (__r) : "f" (__x), \
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"f" (__y) : "cc"); \
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} \
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__r; }))
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# define isgreater(x, y) ((__unordered_cmp (x, y) & (3 << 10)) == (2 << 10))
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# define isgreaterequal(x, y) ((__unordered_cmp (x, y) & (1 << 10)) == 0)
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# define isless(x, y) ((__unordered_cmp (x, y) & (3 << 10)) == (1 << 10))
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# define islessequal(x, y) ((__unordered_cmp (x, y) & (2 << 10)) == 0)
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# define islessgreater(x, y) (((__unordered_cmp (x, y) + (1 << 10)) & (2 << 10)) != 0)
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# define isunordered(x, y) ((__unordered_cmp (x, y) & (3 << 10)) == (3 << 10))
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#else /* sparc64 */
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# define __unordered_v9cmp(x, y, op, qop) \
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(__extension__ \
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({ unsigned __r; \
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if (sizeof(x) == 4 && sizeof(y) == 4) \
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{ \
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float __x = (x); float __y = (y); \
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__asm__("fcmps\t%%fcc3,%1,%2\n\tmov" ## op ## "\t%%fcc3,1,%0" \
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: "=r" (__r) : "f" (__x), "f" (__y), "0" (0) : "cc"); \
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} \
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else if (sizeof(x) <= 8 && sizeof(y) <= 8) \
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{ \
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double __x = (x); double __y = (y); \
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__asm__("fcmpd\t%%fcc3,%1,%2\n\tmov" ## op ## "\t%%fcc3,1,%0" \
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: "=r" (__r) : "f" (__x), "f" (__y), "0" (0) : "cc"); \
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} \
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else \
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{ \
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long double __x = (x); long double __y = (y); \
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extern int _Qp_cmp(const long double *a, const long double *b); \
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__r = qop; \
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} \
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__r; }))
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1999-10-31 17:37:43 +00:00
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1999-07-14 00:54:57 +00:00
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# define isgreater(x, y) __unordered_v9cmp(x, y, "g", _Qp_cmp (&__x, &__y) == 2)
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# define isgreaterequal(x, y) __unordered_v9cmp(x, y, "ge", (_Qp_cmp (&__x, &__y) & 1) == 0)
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# define isless(x, y) __unordered_v9cmp(x, y, "l", _Qp_cmp (&__x, &__y) == 1)
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# define islessequal(x, y) __unordered_v9cmp(x, y, "le", (_Qp_cmp (&__x, &__y) & 2) == 0)
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# define islessgreater(x, y) __unordered_v9cmp(x, y, "lg", ((_Qp_cmp (&__x, &__y) + 1) & 2) != 0)
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# define isunordered(x, y) __unordered_v9cmp(x, y, "u", _Qp_cmp (&__x, &__y) == 3)
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#endif /* sparc64 */
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1999-10-31 17:37:43 +00:00
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#endif /* __USE_ISOC99 */
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1999-07-14 00:54:57 +00:00
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#if (!defined __NO_MATH_INLINES || defined __LIBC_INTERNAL_MATH_INLINES) && defined __OPTIMIZE__
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#ifdef __cplusplus
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# define __MATH_INLINE __inline
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#else
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# define __MATH_INLINE extern __inline
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#endif /* __cplusplus */
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/* The gcc, version 2.7 or below, has problems with all this inlining
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code. So disable it for this version of the compiler. */
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# if (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 7))
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/* Test for negative number. Used in the signbit() macro. */
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__MATH_INLINE int
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__signbitf (float __x)
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{
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__extension__ union { float __f; int __i; } __u = { __f: __x };
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return __u.__i < 0;
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}
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1999-12-29 17:52:49 +00:00
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#if __WORDSIZE == 32
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1999-07-14 00:54:57 +00:00
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__MATH_INLINE int
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__signbit (double __x)
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{
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__extension__ union { double __d; int __i[2]; } __u = { __d: __x };
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return __u.__i[0] < 0;
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}
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__MATH_INLINE int
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__signbitl (long double __x)
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{
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1999-12-29 17:52:49 +00:00
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return __signbit ((double)__x);
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}
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#else /* sparc64 */
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__MATH_INLINE int
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__signbit (double __x)
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{
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__extension__ union { double __d; long __i; } __u = { __d: __x };
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return __u.__i < 0;
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}
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__MATH_INLINE int
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__signbitl (long double __x)
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{
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__extension__ union { long double __l; long __i[2]; } __u = { __l: __x };
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return __u.__i[0] < 0;
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1999-07-14 00:54:57 +00:00
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}
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1999-12-29 17:52:49 +00:00
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#endif /* sparc64 */
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1999-07-14 00:54:57 +00:00
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__MATH_INLINE double
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2000-06-04 16:11:43 +00:00
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sqrt(double __x) __THROW
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1999-07-14 00:54:57 +00:00
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{
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register double __r;
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__asm ("fsqrtd %1,%0" : "=f" (__r) : "f" (__x));
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return __r;
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}
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__MATH_INLINE float
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2000-06-04 16:11:43 +00:00
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sqrtf(float __x) __THROW
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1999-07-14 00:54:57 +00:00
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{
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register float __r;
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__asm ("fsqrts %1,%0" : "=f" (__r) : "f" (__x));
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return __r;
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}
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#if __WORDSIZE == 64
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__MATH_INLINE long double
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2000-06-04 16:11:43 +00:00
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sqrtl(long double __x) __THROW
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1999-07-14 00:54:57 +00:00
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{
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long double __r;
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extern void _Qp_sqrt(long double *, __const__ long double *);
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_Qp_sqrt(&__r, &__x);
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return __r;
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}
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#endif /* sparc64 */
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/* This code is used internally in the GNU libc. */
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#ifdef __LIBC_INTERNAL_MATH_INLINES
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__MATH_INLINE double
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__ieee754_sqrt(double __x)
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{
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register double __r;
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__asm ("fsqrtd %1,%0" : "=f" (__r) : "f" (__x));
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return __r;
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}
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__MATH_INLINE float
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__ieee754_sqrtf(float __x)
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{
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register float __r;
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__asm ("fsqrts %1,%0" : "=f" (__r) : "f" (__x));
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return __r;
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}
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#if __WORDSIZE == 64
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__MATH_INLINE long double
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__ieee754_sqrtl(long double __x)
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{
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long double __r;
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extern void _Qp_sqrt(long double *, __const__ long double *);
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_Qp_sqrt(&__r, &__x);
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return __r;
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}
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#endif /* sparc64 */
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#endif /* __LIBC_INTERNAL_MATH_INLINES */
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#endif /* gcc 2.8+ */
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1999-10-31 17:37:43 +00:00
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#ifdef __USE_ISOC99
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1999-07-14 00:54:57 +00:00
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__MATH_INLINE double fdim (double __x, double __y);
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__MATH_INLINE double
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fdim (double __x, double __y)
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{
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return __x < __y ? 0 : __x - __y;
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}
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__MATH_INLINE float fdimf (float __x, float __y);
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__MATH_INLINE float
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fdimf (float __x, float __y)
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{
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return __x < __y ? 0 : __x - __y;
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}
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1999-10-31 17:37:43 +00:00
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#endif /* __USE_ISOC99 */
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1999-07-14 00:54:57 +00:00
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#endif /* !__NO_MATH_INLINES && __OPTIMIZE__ */
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#endif /* __GNUC__ */
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