diff options
| author |   kettenis <kettenis@openbsd.org> | 2014-09-12 22:07:24 +0000 |
|---|---|---|
| committer | kettenis <kettenis@openbsd.org> | 2014-09-12 22:07:24 +0000 |
| commit | a32deacaae0030b594b34b3f84cd9d8c695b034d (patch) | |
| tree | 7e59627be142a22cc7e53bb6f6b819f2327d45a2 | |
| parent | Fix some bugs in the _Qp_sqrt implementation that would limit the accuracy (diff) | |
| download | wireguard-openbsd-a32deacaae0030b594b34b3f84cd9d8c695b034d.tar.xz wireguard-openbsd-a32deacaae0030b594b34b3f84cd9d8c695b034d.zip | |
Provide a sparc64 version of sqrtl(3) that simply calls _Qp_sqrt.
The generic sqrtl(3) is not nearly accurate enough for quad-precision
floating point.
| -rw-r--r-- | lib/libm/Makefile | 3 | ||||
| -rw-r--r-- | lib/libm/arch/sparc64/e_sqrtl.c | 29 |
2 files changed, 31 insertions, 1 deletions
diff --git a/lib/libm/Makefile b/lib/libm/Makefile index 60cd86fe9f0..3303c247ba5 100644 --- a/lib/libm/Makefile +++ b/lib/libm/Makefile @@ -1,4 +1,4 @@ -# $OpenBSD: Makefile,v 1.106 2014/03/18 22:36:30 miod Exp $ +# $OpenBSD: Makefile,v 1.107 2014/09/12 22:07:24 kettenis Exp $ # $NetBSD: Makefile,v 1.28 1995/11/20 22:06:19 jtc Exp $ # # @(#)Makefile 5.1beta 93/09/24 @@ -67,6 +67,7 @@ ARCH_SRCS = e_sqrt.c e_sqrtf.c s_fabsf.c .PATH: ${.CURDIR}/arch/sparc .elif (${MACHINE_ARCH} == "sparc64") .PATH: ${.CURDIR}/arch/sparc64 +ARCH_SRCS = e_sqrtl.c .elif (${MACHINE_ARCH} == "vax") .PATH: ${.CURDIR}/arch/vax NOIEEE_ARCH = n_argred.S n_infnan.S n_sqrt.S diff --git a/lib/libm/arch/sparc64/e_sqrtl.c b/lib/libm/arch/sparc64/e_sqrtl.c new file mode 100644 index 00000000000..95a2a4f043f --- /dev/null +++ b/lib/libm/arch/sparc64/e_sqrtl.c @@ -0,0 +1,29 @@ +/* $OpenBSD: e_sqrtl.c,v 1.1 2014/09/12 22:07:24 kettenis Exp $ */ +/* + * Copyright (c) 2014 Mark Kettenis + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <math.h> + +extern void _Qp_sqrt(long double *, long double *); + +long double +sqrtl(long double x) +{ + long double y; + + _Qp_sqrt(&y, &x); + return y; +} |