diff options
Diffstat (limited to 'libc/math/w_coshf.c')
| -rw-r--r-- | libc/math/w_coshf.c | 37 |
1 files changed, 12 insertions, 25 deletions
diff --git a/libc/math/w_coshf.c b/libc/math/w_coshf.c index 8e24ca9ad..df1f68120 100644 --- a/libc/math/w_coshf.c +++ b/libc/math/w_coshf.c @@ -1,5 +1,6 @@ /* w_coshf.c -- float version of w_cosh.c. * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. + * Optimizations by Ulrich Drepper <drepper@gmail.com>, 2011. */ /* @@ -8,40 +9,26 @@ * * Developed at SunPro, a Sun Microsystems, Inc. business. * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice + * software is freely granted, provided that this notice * is preserved. * ==================================================== */ -#if defined(LIBM_SCCS) && !defined(lint) -static char rcsid[] = "$NetBSD: w_coshf.c,v 1.3 1995/05/10 20:48:49 jtc Exp $"; -#endif - -/* +/* * wrapper coshf(x) */ #include <math.h> -#include "math_private.h" +#include <math_private.h> -#ifdef __STDC__ - float __coshf(float x) /* wrapper coshf */ -#else - float __coshf(x) /* wrapper coshf */ - float x; -#endif +float +__coshf (float x) { -#ifdef _IEEE_LIBM - return __ieee754_coshf(x); -#else - float z; - z = __ieee754_coshf(x); - if(_LIB_VERSION == _IEEE_ || __isnanf(x)) return z; - if(!__finite(z) && __finite(x)) { - /* cosh overflow */ - return (float)__kernel_standard((double)x,(double)x,105); - } else - return z; -#endif + float z = __ieee754_coshf (x); + if (__builtin_expect (!__finitef (z), 0) && __finitef (x) + && _LIB_VERSION != _IEEE_) + return __kernel_standard_f (x, x, 105); /* cosh overflow */ + + return z; } weak_alias (__coshf, coshf) |