Optimization to some complex math functions

Also, change last reference to __sqrt into __sqrt to easily.

1 files changed, 11 insertions, 15 deletions

diff --git a/math/s_ccoshl.c b/math/s_ccoshl.c
index 1913bb6ee4..ed1bc459df 100644
--- a/math/s_ccoshl.c
+++ b/math/s_ccoshl.c
@@ -1,5 +1,5 @@
 /* Complex cosine hyperbole function for long double.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -32,10 +32,10 @@ __ccoshl (__complex__ long double x)
   int rcls = fpclassify (__real__ x);
   int icls = fpclassify (__imag__ x);
 
-  if (rcls >= FP_ZERO)
+  if (__builtin_expect (rcls >= FP_ZERO, 1))
     {
       /* Real part is finite.  */
-      if (icls >= FP_ZERO)
+      if (__builtin_expect (icls >= FP_ZERO, 1))
 	{
 	  /* Imaginary part is finite.  */
 	  long double sinh_val = __ieee754_sinhl (__real__ x);
@@ -52,22 +52,14 @@ __ccoshl (__complex__ long double x)
 	  __imag__ retval = __real__ x == 0.0 ? 0.0 : __nanl ("");
 	  __real__ retval = __nanl ("") + __nanl ("");
 
-#ifdef FE_INVALID
 	  if (icls == FP_INFINITE)
 	    feraiseexcept (FE_INVALID);
-#endif
 	}
     }
-  else if (rcls == FP_INFINITE)
+  else if (__builtin_expect (rcls == FP_INFINITE, 1))
     {
       /* Real part is infinite.  */
-      if (icls == FP_ZERO)
-	{
-	  /* Imaginary part is 0.0.  */
-	  __real__ retval = HUGE_VALL;
-	  __imag__ retval = __imag__ x * __copysignl (1.0, __real__ x);
-	}
-      else if (icls > FP_ZERO)
+      if (__builtin_expect (icls > FP_ZERO, 1))
 	{
 	  /* Imaginary part is finite.  */
 	  long double sinix, cosix;
@@ -78,16 +70,20 @@ __ccoshl (__complex__ long double x)
 	  __imag__ retval = (__copysignl (HUGE_VALL, sinix)
 			     * __copysignl (1.0, __real__ x));
 	}
+      else if (icls == FP_ZERO)
+	{
+	  /* Imaginary part is 0.0.  */
+	  __real__ retval = HUGE_VALL;
+	  __imag__ retval = __imag__ x * __copysignl (1.0, __real__ x);
+	}
       else
 	{
 	  /* The addition raises the invalid exception.  */
 	  __real__ retval = HUGE_VALL;
 	  __imag__ retval = __nanl ("") + __nanl ("");
 
-#ifdef FE_INVALID
 	  if (icls == FP_INFINITE)
 	    feraiseexcept (FE_INVALID);
-#endif
 	}
     }
   else