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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_hypotl.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_hypotl.c')
-rw-r--r--math/w_hypotl.c26
1 files changed, 7 insertions, 19 deletions
diff --git a/math/w_hypotl.c b/math/w_hypotl.c
index 6b6414da22..522eb63c39 100644
--- a/math/w_hypotl.c
+++ b/math/w_hypotl.c
@@ -14,10 +14,6 @@
* ====================================================
*/
-#if defined(LIBM_SCCS) && !defined(lint)
-static char rcsid[] = "$NetBSD: $";
-#endif
-
/*
* wrapper hypotl(x,y)
*/
@@ -26,23 +22,15 @@ static char rcsid[] = "$NetBSD: $";
#include <math_private.h>
-#ifdef __STDC__
- long double __hypotl(long double x, long double y)/* wrapper hypotl */
-#else
- long double __hypotl(x,y) /* wrapper hypotl */
- long double x,y;
-#endif
+long double
+__hypotl(long double x, long double y)
{
-#ifdef _IEEE_LIBM
- return __ieee754_hypotl(x,y);
-#else
long double z;
z = __ieee754_hypotl(x,y);
- if(_LIB_VERSION == _IEEE_) return z;
- if((!__finitel(z))&&__finitel(x)&&__finitel(y))
- return __kernel_standard(x,y,204); /* hypot overflow */
- else
- return z;
-#endif
+ if(__builtin_expect(!__finitel(z), 0)
+ && __finitel(x) && __finitel(y) && _LIB_VERSION != _IEEE_)
+ return __kernel_standard(x, y, 204); /* hypot overflow */
+
+ return z;
}
weak_alias (__hypotl, hypotl)