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authorUlrich Drepper <drepper@gmail.com>2011-10-22 00:32:39 -0400
committerUlrich Drepper <drepper@gmail.com>2011-10-22 00:32:39 -0400
commitbc62c2fb152d6ffec63975d88fd8f1bc3d3b7c01 (patch)
treebbb67e94ed1a9ba0becbe752c6853c199c639070 /math/s_csinhl.c
parentc196fed8f01a8599dd43edf1c7a1ea3ba9ed0598 (diff)
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Optimization to some complex math functions
Also, change last reference to __sqrt into __sqrt to easily.
Diffstat (limited to 'math/s_csinhl.c')
-rw-r--r--math/s_csinhl.c26
1 files changed, 11 insertions, 15 deletions
diff --git a/math/s_csinhl.c b/math/s_csinhl.c
index db1b47b301..d2964f8a2b 100644
--- a/math/s_csinhl.c
+++ b/math/s_csinhl.c
@@ -1,5 +1,5 @@
 /* Complex sine 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.
 
@@ -35,10 +35,10 @@ __csinhl (__complex__ long double x)
 
   __real__ x = fabsl (__real__ 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);
@@ -61,32 +61,22 @@ __csinhl (__complex__ long double x)
 	      __real__ retval = __copysignl (0.0, negate ? -1.0 : 1.0);
 	      __imag__ retval = __nanl ("") + __nanl ("");
 
-#ifdef FE_INVALID
 	      if (icls == FP_INFINITE)
 		feraiseexcept (FE_INVALID);
-#endif
 	    }
 	  else
 	    {
 	      __real__ retval = __nanl ("");
 	      __imag__ retval = __nanl ("");
 
-#ifdef FE_INVALID
 	      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 = negate ? -HUGE_VALL : HUGE_VALL;
-	  __imag__ retval = __imag__ x;
-	}
-      else if (icls > FP_ZERO)
+      if (__builtin_expect (icls > FP_ZERO, 1))
 	{
 	  /* Imaginary part is finite.  */
 	  long double sinix, cosix;
@@ -99,6 +89,12 @@ __csinhl (__complex__ long double x)
 	  if (negate)
 	    __real__ retval = -__real__ retval;
 	}
+      else if (icls == FP_ZERO)
+	{
+	  /* Imaginary part is 0.0.  */
+	  __real__ retval = negate ? -HUGE_VALL : HUGE_VALL;
+	  __imag__ retval = __imag__ x;
+	}
       else
 	{
 	  /* The addition raises the invalid exception.  */