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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_coshl.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_coshl.c')
-rw-r--r--math/w_coshl.c30
1 files changed, 9 insertions, 21 deletions
diff --git a/math/w_coshl.c b/math/w_coshl.c
index ecba921072..abca8b05f5 100644
--- a/math/w_coshl.c
+++ b/math/w_coshl.c
@@ -1,6 +1,7 @@
 /* w_acoshl.c -- long double version of w_acosh.c.
  * Conversion to long double by Ulrich Drepper,
  * Cygnus Support, drepper@cygnus.com.
+ * Optimizations bu Ulrich Drepper <drepper@gmail.com>, 2011.
  */
 
 /*
@@ -14,10 +15,6 @@
  * ====================================================
  */
 
-#if defined(LIBM_SCCS) && !defined(lint)
-static char rcsid[] = "$NetBSD: $";
-#endif
-
 /*
  * wrapper coshl(x)
  */
@@ -25,23 +22,14 @@ static char rcsid[] = "$NetBSD: $";
 #include <math.h>
 #include <math_private.h>
 
-#ifdef __STDC__
-	long double __coshl(long double x)	/* wrapper coshl */
-#else
-	long double __coshl(x)			/* wrapper coshl */
-	long double x;
-#endif
+long double
+__coshl (long double x)
 {
-#ifdef _IEEE_LIBM
-	return __ieee754_coshl(x);
-#else
-	long double z;
-	z = __ieee754_coshl(x);
-	if(_LIB_VERSION == _IEEE_ || __isnanl(x)) return z;
-	if(!__finitel(z) && __finitel(x)) {
-		return __kernel_standard(x,x,205); /* cosh overflow */
-	} else
-	    return z;
-#endif
+	long double z = __ieee754_coshl (x);
+	if (__builtin_expect (!__finitel (z), 0) && __finitel (x)
+	    && _LIB_VERSION != _IEEE_)
+		return __kernel_standard (x, x, 205); /* cosh overflow */
+
+	return z;
 }
 weak_alias (__coshl, coshl)