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

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