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| author | Ulrich Drepper <drepper@gmail.com> | 2011-10-12 11:27:51 -0400 |
|---|---|---|
| committer | Ulrich Drepper <drepper@gmail.com> | 2011-10-12 11:27:51 -0400 |
| commit | 0ac5ae2335292908f39031b1ea9fe8edce433c0f (patch) | |
| tree | f9d26c8abc0de39d18d4c13e70f6022cdc6b461f /sysdeps/ieee754/flt-32/e_sinhf.c | |
| parent | a843a204a3e8a0dd53584dad3668771abaec84ac (diff) | |
| download | glibc-0ac5ae2335292908f39031b1ea9fe8edce433c0f.tar.gz glibc-0ac5ae2335292908f39031b1ea9fe8edce433c0f.tar.xz glibc-0ac5ae2335292908f39031b1ea9fe8edce433c0f.zip | |
Optimize libm
libm is now somewhat integrated with gcc's -ffinite-math-only option and lots of the wrapper functions have been optimized.
Diffstat (limited to 'sysdeps/ieee754/flt-32/e_sinhf.c')
| -rw-r--r-- | sysdeps/ieee754/flt-32/e_sinhf.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/sysdeps/ieee754/flt-32/e_sinhf.c b/sysdeps/ieee754/flt-32/e_sinhf.c index 045f6f121e..5813963488 100644 --- a/sysdeps/ieee754/flt-32/e_sinhf.c +++ b/sysdeps/ieee754/flt-32/e_sinhf.c @@ -8,31 +8,19 @@ * * 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: e_sinhf.c,v 1.4 1995/05/10 20:46:15 jtc Exp $"; -#endif - #include "math.h" #include "math_private.h" -#ifdef __STDC__ static const float one = 1.0, shuge = 1.0e37; -#else -static float one = 1.0, shuge = 1.0e37; -#endif -#ifdef __STDC__ - float __ieee754_sinhf(float x) -#else - float __ieee754_sinhf(x) - float x; -#endif -{ +float +__ieee754_sinhf(float x) +{ float t,w,h; int32_t ix,jx; @@ -40,13 +28,13 @@ static float one = 1.0, shuge = 1.0e37; ix = jx&0x7fffffff; /* x is INF or NaN */ - if(ix>=0x7f800000) return x+x; + if(__builtin_expect(ix>=0x7f800000, 0)) return x+x; h = 0.5; if (jx<0) h = -h; /* |x| in [0,22], return sign(x)*0.5*(E+E/(E+1))) */ if (ix < 0x41b00000) { /* |x|<22 */ - if (ix<0x31800000) /* |x|<2**-28 */ + if (__builtin_expect(ix<0x31800000, 0)) /* |x|<2**-28 */ if(shuge+x>one) return x;/* sinh(tiny) = tiny with inexact */ t = __expm1f(fabsf(x)); if(ix<0x3f800000) return h*((float)2.0*t-t*t/(t+one)); @@ -66,3 +54,4 @@ static float one = 1.0, shuge = 1.0e37; /* |x| > overflowthresold, sinh(x) overflow */ return x*shuge; } +strong_alias (__ieee754_sinhf, __sinhf_finite) |