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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_csin.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_csin.c')
-rw-r--r--math/s_csin.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/math/s_csin.c b/math/s_csin.c
index 0d4441ca2b..07a78c4384 100644
--- a/math/s_csin.c
+++ b/math/s_csin.c
@@ -1,5 +1,5 @@
 /* Complex sine function for 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 @@ __csin (__complex__ double x)
 
   __real__ x = fabs (__real__ x);
 
-  if (icls >= FP_ZERO)
+  if (__builtin_expect (icls >= FP_ZERO, 1))
     {
       /* Imaginary part is finite.  */
-      if (rcls >= FP_ZERO)
+      if (__builtin_expect (rcls >= FP_ZERO, 1))
 	{
 	  /* Real part is finite.  */
 	  double sinh_val = __ieee754_sinh (__imag__ x);
@@ -61,19 +61,15 @@ __csin (__complex__ double x)
 	      __real__ retval = __nan ("");
 	      __imag__ retval = __imag__ x;
 
-#ifdef FE_INVALID
 	      if (rcls == FP_INFINITE)
 		feraiseexcept (FE_INVALID);
-#endif
 	    }
 	  else
 	    {
 	      __real__ retval = __nan ("");
 	      __imag__ retval = __nan ("");
 
-#ifdef FE_INVALID
 	      feraiseexcept (FE_INVALID);
-#endif
 	    }
 	}
     }
@@ -107,10 +103,8 @@ __csin (__complex__ double x)
 	  __real__ retval = __nan ("");
 	  __imag__ retval = HUGE_VAL;
 
-#ifdef FE_INVALID
 	  if (rcls == FP_INFINITE)
 	    feraiseexcept (FE_INVALID);
-#endif
 	}
     }
   else