2012-03-15 07:11:17 +00:00
|
|
|
/* Round float to int floating-point values, sparc64 vis3 version.
|
2017-01-01 00:14:16 +00:00
|
|
|
Copyright (C) 2012-2017 Free Software Foundation, Inc.
|
2012-03-15 07:11:17 +00:00
|
|
|
This file is part of the GNU C Library.
|
|
|
|
|
Contributed by David S. Miller <davem@davemloft.net>, 2012.
|
|
|
|
|
|
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
|
|
|
modify it under the terms of the GNU Lesser General Public
|
|
|
|
|
License as published by the Free Software Foundation; either
|
|
|
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
|
|
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
|
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
|
|
Lesser General Public License for more details.
|
|
|
|
|
|
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
|
|
|
License along with the GNU C Library; if not, see
|
|
|
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
|
|
|
|
|
|
#include <sysdep.h>
|
|
|
|
|
|
|
|
|
|
/* VIS instructions are used to facilitate the formation of
|
|
|
|
|
easier constants, and the propagation of the sign bit. */
|
|
|
|
|
|
|
|
|
|
#define TWO_FIFTYTWO 0x43300000 /* 2**52 */
|
|
|
|
|
|
|
|
|
|
#define ZERO %f10 /* 0.0 */
|
|
|
|
|
#define SIGN_BIT %f12 /* -0.0 */
|
|
|
|
|
|
|
|
|
|
ENTRY (__rint_vis3)
|
|
|
|
|
sethi %hi(TWO_FIFTYTWO), %o2
|
|
|
|
|
sllx %o2, 32, %o2
|
|
|
|
|
fzero ZERO
|
|
|
|
|
|
|
|
|
|
fnegd ZERO, SIGN_BIT
|
|
|
|
|
movxtod %o2, %f16
|
|
|
|
|
fabsd %f0, %f14
|
|
|
|
|
|
|
|
|
|
fcmpd %fcc3, %f14, %f16
|
|
|
|
|
|
|
|
|
|
fmovduge %fcc3, ZERO, %f16
|
|
|
|
|
fand %f0, SIGN_BIT, SIGN_BIT
|
|
|
|
|
|
|
|
|
|
for %f16, SIGN_BIT, %f16
|
|
|
|
|
faddd %f0, %f16, %f6
|
|
|
|
|
fsubd %f6, %f16, %f0
|
|
|
|
|
fabsd %f0, %f0
|
|
|
|
|
retl
|
|
|
|
|
for %f0, SIGN_BIT, %f0
|
|
|
|
|
END (__rint_vis3)
|
