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Add branch predictions to complex math code

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This commit is contained in:
Ulrich Drepper
2011-10-22 13:17:30 -04:00
parent bc62c2fb15
commit 77425c63e7
24 changed files with 101 additions and 132 deletions
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7
math/s_catanl.c
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@ -1,5 +1,5 @@
/* Return arc tangent of complex long double value.
Copyright (C) 1997, 1998 Free Software Foundation, Inc.
Copyright (C) 1997, 1998, 2011 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
@ -20,7 +20,6 @@
#include <complex.h>
#include <math.h>
#include <math_private.h>
@ -31,7 +30,7 @@ __catanl (__complex__ long double x)
int rcls = fpclassify (__real__ x);
int icls = fpclassify (__imag__ x);
if (rcls <= FP_INFINITE || icls <= FP_INFINITE)
if (__builtin_expect (rcls <= FP_INFINITE || icls <= FP_INFINITE, 0))
{
if (rcls == FP_INFINITE)
{
@ -57,7 +56,7 @@ __catanl (__complex__ long double x)
__imag__ res = __nanl ("");
}
}
else if (rcls == FP_ZERO && icls == FP_ZERO)
else if (__builtin_expect (rcls == FP_ZERO && icls == FP_ZERO, 0))
{
res = x;
}