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authorUlrich Drepper <drepper@gmail.com>2011-10-12 11:27:51 -0400
committerUlrich Drepper <drepper@gmail.com>2011-10-12 11:27:51 -0400
commit0ac5ae2335292908f39031b1ea9fe8edce433c0f (patch)
treef9d26c8abc0de39d18d4c13e70f6022cdc6b461f /math/w_sinh.c
parenta843a204a3e8a0dd53584dad3668771abaec84ac (diff)
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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 'math/w_sinh.c')
-rw-r--r--math/w_sinh.c29
1 files changed, 8 insertions, 21 deletions
diff --git a/math/w_sinh.c b/math/w_sinh.c
index c95e154fc3..34ad2d8624 100644
--- a/math/w_sinh.c
+++ b/math/w_sinh.c
@@ -10,10 +10,6 @@
  * ====================================================
  */
 
-#if defined(LIBM_SCCS) && !defined(lint)
-static char rcsid[] = "$NetBSD: w_sinh.c,v 1.6 1995/05/10 20:49:51 jtc Exp $";
-#endif
-
 /*
  * wrapper sinh(x)
  */
@@ -21,24 +17,15 @@ static char rcsid[] = "$NetBSD: w_sinh.c,v 1.6 1995/05/10 20:49:51 jtc Exp $";
 #include <math.h>
 #include <math_private.h>
 
-#ifdef __STDC__
-	double __sinh(double x)		/* wrapper sinh */
-#else
-	double __sinh(x)			/* wrapper sinh */
-	double x;
-#endif
+double
+__sinh (double x)
 {
-#ifdef _IEEE_LIBM
-	return __ieee754_sinh(x);
-#else
-	double z;
-	z = __ieee754_sinh(x);
-	if(_LIB_VERSION == _IEEE_) return z;
-	if(!__finite(z)&&__finite(x)) {
-	    return __kernel_standard(x,x,25); /* sinh overflow */
-	} else
-	    return z;
-#endif
+	double z = __ieee754_sinh (x);
+	if (__builtin_expect (!__finite (z), 0) && __finite (x)
+	    && _LIB_VERSION != _IEEE_)
+		return __kernel_standard (x, x, 25); /* sinh overflow */
+
+	return z;
 }
 weak_alias (__sinh, sinh)
 #ifdef NO_LONG_DOUBLE