lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-07-29 11:41:21 +03:00
Code Activity

Add branch predictions to complex math code

Browse Source
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
Download Patch File Download Diff File Expand all files Collapse all files

7
math/s_catan.c
View File

@ -1,5 +1,5 @@
/* Return arc tangent of complex double value.
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.
@ -20,7 +20,6 @@
#include <complex.h>
#include <math.h>
#include <math_private.h>
@ -31,7 +30,7 @@ __catan (__complex__ 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 @@ __catan (__complex__ double x)
__imag__ res = __nan ("");
}
}
else if (rcls == FP_ZERO && icls == FP_ZERO)
else if (__builtin_expect (rcls == FP_ZERO && icls == FP_ZERO, 0))
{
res = x;
}