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| author | Ulrich Drepper <drepper@gmail.com> | 2011-10-24 20:19:17 -0400 |
|---|---|---|
| committer | Ulrich Drepper <drepper@gmail.com> | 2011-10-24 20:19:17 -0400 |
| commit | af968f62f24c5c0ef4e7e5ab41acae946908c112 (patch) | |
| tree | e1e0570eeb00c434cc751cbadfbeae150eeea11a /sysdeps/ieee754/dbl-64/e_atan2.c | |
| parent | 58985aa92f57ff46e96b32388ce65e7fdd8c8b9e (diff) | |
| download | glibc-af968f62f24c5c0ef4e7e5ab41acae946908c112.tar.gz glibc-af968f62f24c5c0ef4e7e5ab41acae946908c112.tar.xz glibc-af968f62f24c5c0ef4e7e5ab41acae946908c112.zip | |
Optimize accurate 64-bit routines for FMA4 on x86-64
Diffstat (limited to 'sysdeps/ieee754/dbl-64/e_atan2.c')
| -rw-r--r-- | sysdeps/ieee754/dbl-64/e_atan2.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/sysdeps/ieee754/dbl-64/e_atan2.c b/sysdeps/ieee754/dbl-64/e_atan2.c index 264791e0f9..9caacccf4c 100644 --- a/sysdeps/ieee754/dbl-64/e_atan2.c +++ b/sysdeps/ieee754/dbl-64/e_atan2.c @@ -51,7 +51,11 @@ /* round to nearest mode of IEEE 754 standard. */ /************************************************************************/ static double atan2Mp(double ,double ,const int[]); -static double signArctan2(double ,double); + /* Fix the sign and return after stage 1 or stage 2 */ +static double signArctan2(double y,double z) +{ + return __copysign(z, y); +} static double normalized(double ,double,double ,double); void __mpatan2(mp_no *,mp_no *,mp_no *,int); @@ -375,7 +379,9 @@ double __ieee754_atan2(double y,double x) { } } } +#ifndef __ieee754_atan2 strong_alias (__ieee754_atan2, __atan2_finite) +#endif /* Treat the Denormalized case */ static double normalized(double ax,double ay,double y, double z) @@ -387,11 +393,6 @@ static double normalized(double ax,double ay,double y, double z) __sub(&mpz,&mperr,&mpz2,p); __mp_dbl(&mpz2,&z,p); return signArctan2(y,z); } - /* Fix the sign and return after stage 1 or stage 2 */ -static double signArctan2(double y,double z) -{ - return ((y<ZERO) ? -z : z); -} /* Stage 3: Perform a multi-Precision computation */ static double atan2Mp(double x,double y,const int pr[]) { |