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amd64 assembly versions of sqrt(), lrint(), and llrint() using SSE2.

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This commit is contained in:
David Schultz 2005-01-15 03:32:28 +00:00
parent b6e65225a6
commit cd3cc47033
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=140275
4 changed files with 77 additions and 0 deletions
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2
lib/msun/Makefile
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@ -48,6 +48,8 @@ ARCH_SRCS = s_copysign.S s_copysignf.S
# handling is broken (doesn't exist!) on the Alpha port.
# Stock gcc 2.7.2.1 doesn't understand these options.
#CFLAGS += -mtrap-precision=i -mfp-trap-mode=su
.elif ${MACHINE_ARCH} == "amd64"
ARCH_SRCS = e_sqrt.S s_lrint.S s_llrint.S
.elif ${MACHINE_ARCH} == "i386"
ARCH_SUBDIR= i387
ARCH_SRCS = e_acos.S e_asin.S e_atan2.S e_exp.S e_fmod.S e_log.S e_log10.S \

33
lib/msun/amd64/e_sqrt.S Normal file
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@ -0,0 +1,33 @@
/*-
* Copyright (c) 2005 David Schultz <das@FreeBSD.ORG>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <machine/asm.h>
__FBSDID("$FreeBSD$")
ENTRY(__ieee754_sqrt)
sqrtsd %xmm0, %xmm0
ret

6
lib/msun/amd64/s_llrint.S Normal file
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@ -0,0 +1,6 @@
#include <machine/asm.h>
__FBSDID("$FreeBSD$")
/* sizeof(long) == sizeof(long long) */
#define fn llrint
#include "s_lrint.S"

36
lib/msun/amd64/s_lrint.S Normal file
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@ -0,0 +1,36 @@
/*-
* Copyright (c) 2005 David Schultz <das@FreeBSD.ORG>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <machine/asm.h>
#ifndef fn
__FBSDID("$FreeBSD$")
#define fn lrint
#endif
ENTRY(fn)
cvtsd2si %xmm0, %rax
ret