diff options
author | das <das@FreeBSD.org> | 2005-02-20 22:51:08 +0000 |
---|---|---|
committer | das <das@FreeBSD.org> | 2005-02-20 22:51:08 +0000 |
commit | 967bb5dcb03c116c14a8b9cef87322e766eb32f3 (patch) | |
tree | aece43ecc8eaebd49a4eb55a0caadcae9b695594 /lib/msun/i387 | |
parent | ef7a10667b796fdafde6018206ac33ea2cede0bd (diff) | |
download | FreeBSD-src-967bb5dcb03c116c14a8b9cef87322e766eb32f3.zip FreeBSD-src-967bb5dcb03c116c14a8b9cef87322e766eb32f3.tar.gz |
Remove i387 versions of asin() and acos(). Although the hardware
instruction was faster on the 486, it's slower than our MD version on
modern processors.
Determined by: bde
PR: 67469
Diffstat (limited to 'lib/msun/i387')
-rw-r--r-- | lib/msun/i387/Makefile.inc | 2 | ||||
-rw-r--r-- | lib/msun/i387/e_acos.S | 56 | ||||
-rw-r--r-- | lib/msun/i387/e_asin.S | 55 |
3 files changed, 1 insertions, 112 deletions
diff --git a/lib/msun/i387/Makefile.inc b/lib/msun/i387/Makefile.inc index 2a73c90..b0150af 100644 --- a/lib/msun/i387/Makefile.inc +++ b/lib/msun/i387/Makefile.inc @@ -1,6 +1,6 @@ # $FreeBSD$ -ARCH_SRCS = e_acos.S e_asin.S e_atan2.S e_exp.S e_fmod.S e_log.S e_log10.S \ +ARCH_SRCS = e_atan2.S e_exp.S e_fmod.S e_log.S e_log10.S \ e_remainder.S e_scalb.S e_sqrt.S s_atan.S s_ceil.S s_copysign.S \ s_cos.S s_finite.S s_floor.S s_llrint.S s_logb.S s_lrint.S \ s_rint.S s_scalbn.S s_significand.S s_sin.S s_tan.S diff --git a/lib/msun/i387/e_acos.S b/lib/msun/i387/e_acos.S deleted file mode 100644 index 8ea130d..0000000 --- a/lib/msun/i387/e_acos.S +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Copyright (c) 1993,94 Winning Strategies, Inc. - * 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. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Winning Strategies, Inc. - * 4. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. - */ - -/* - * Written by: - * J.T. Conklin (jtc@wimsey.com), Winning Strategies, Inc. - */ - -#include <machine/asm.h> - -RCSID("$FreeBSD$") - -/* - * acos(x) = atan2(sqrt(1 - x^2, x). - * Actually evaluate (1 - x^2) as (1 - x) * (1 + x) to avoid loss of - * precision when |x| is nearly 1. - */ -ENTRY(acos) - fldl 4(%esp) /* x */ - fld1 - fld %st(0) - fsub %st(2) /* 1 - x */ - fxch %st(1) - fadd %st(2) /* 1 + x */ - fmulp %st(1) /* (1 - x) * (1 + x) */ - fsqrt - fxch %st(1) - fpatan - ret diff --git a/lib/msun/i387/e_asin.S b/lib/msun/i387/e_asin.S deleted file mode 100644 index add6f32..0000000 --- a/lib/msun/i387/e_asin.S +++ /dev/null @@ -1,55 +0,0 @@ -/* - * Copyright (c) 1993,94 Winning Strategies, Inc. - * 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. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Winning Strategies, Inc. - * 4. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. - */ - -/* - * Written by: - * J.T. Conklin (jtc@wimsey.com), Winning Strategies, Inc. - */ - -#include <machine/asm.h> - -RCSID("$FreeBSD$") - -/* - * asin(x) = atan2(x, sqrt(1 - x^2). - * Actually evaluate (1 - x^2) as (1 - x) * (1 + x) to avoid loss of - * precision when |x| is nearly 1. - */ -ENTRY(asin) - fldl 4(%esp) /* x */ - fld1 - fld %st(0) - fsub %st(2) /* 1 - x */ - fxch %st(1) - fadd %st(2) /* 1 + x */ - fmulp %st(1) /* (1 - x) * (1 + x) */ - fsqrt - fpatan - ret |