Sat Oct 14 02:52:36 1995 Ulrich Drepper <drepper@ipd.info.uni-karlsruhe.de>

	* malloc/malloc.c (_malloc_internal): Performance fix.  Move
	if statement out of loop.

	* stdio/_itoa.c, stdio/_itoa.h: Complete rewrite.  Much faster
	implementation using GMP functions.  Contributed by
	Torbjorn Granlund and Ulrich Drepper.

	* stdio/test_rdwr.c: Include <errno.h>.

	* sysdeps/i386/i586/Implies: New file.

	New highly optimized string functions for i[345]86.
	* sysdeps/i386/memchr.S, sysdeps/i386/memcmp.S: New files.
        * sysdeps/i386/stpcpy.S, sysdeps/i386/stpncpy.S: New files.
        * sysdeps/i386/strchr.S, sysdeps/i386/strcspn.S: New files.
        * sysdeps/i386/strpbrk.S, sysdeps/i386/strrchr.S: New files.
        * sysdeps/i386/strspn.S, sysdeps/i386/i486/strcat.S: New files.
        * sysdeps/i386/i486/strlen.S, sysdeps/i386/i586/strchr.S: New files.
        * sysdeps/i386/i586/strlen.S: New file.
	* sysdeps/i386/memchr.c: Removed.  There is now an assembler version.

	* sysdeps/i386/i586/memcopy.h (WORD_COPY_BWD): Parameters did
	not correspond to used values.

	* sysdeps/unix/sysv/linux/nfs/nfs.h: New file.  Simply a wrapper
        around a kernel header file.
	* sysdeps/unix/sysv/linux/Dist: Add it.
	* sysdeps/unix/sysv/linux/Makefile [$(subdir)=sunrpc] (headers):
	Likewise.

	* sysdeps/unix/sysv/linux/local_lim.h: Rewrite.  Instead of
        defining ourself we use a kernel header file.

	* sysdeps/unix/sysv/linux/i386/sysdep.h (DO_CALL): Optimize system
        call handler for i586.

	* sysdeps/unix/sysv/linux/sys/param.h: Add copyright and clean up.
Sat Oct 14 02:52:36 1995  Ulrich Drepper  <drepper@ipd.info.uni-karlsruhe.de>

	* malloc/malloc.c (_malloc_internal): Performance fix.  Move
	if statement out of loop.

	* stdio/_itoa.c, stdio/_itoa.h: Complete rewrite.  Much faster
	implementation using GMP functions.  Contributed by
	Torbjorn Granlund and Ulrich Drepper.

	* stdio/test_rdwr.c: Include <errno.h>.

	* sysdeps/i386/i586/Implies: New file.

	New highly optimized string functions for i[345]86.
	* sysdeps/i386/memchr.S, sysdeps/i386/memcmp.S: New files.
        * sysdeps/i386/stpcpy.S, sysdeps/i386/stpncpy.S: New files.
        * sysdeps/i386/strchr.S, sysdeps/i386/strcspn.S: New files.
        * sysdeps/i386/strpbrk.S, sysdeps/i386/strrchr.S: New files.
        * sysdeps/i386/strspn.S, sysdeps/i386/i486/strcat.S: New files.
        * sysdeps/i386/i486/strlen.S, sysdeps/i386/i586/strchr.S: New files.
        * sysdeps/i386/i586/strlen.S: New file.
	* sysdeps/i386/memchr.c: Removed.  There is now an assembler version.

	* sysdeps/i386/i586/memcopy.h (WORD_COPY_BWD): Parameters did
	not correspond to used values.

	* sysdeps/unix/sysv/linux/nfs/nfs.h: New file.  Simply a wrapper
        around a kernel header file.
	* sysdeps/unix/sysv/linux/Dist: Add it.
	* sysdeps/unix/sysv/linux/Makefile [$(subdir)=sunrpc] (headers):
	Likewise.

	* sysdeps/unix/sysv/linux/local_lim.h: Rewrite.  Instead of
        defining ourself we use a kernel header file.

	* sysdeps/unix/sysv/linux/i386/sysdep.h (DO_CALL): Optimize system
        call handler for i586.

	* sysdeps/unix/sysv/linux/sys/param.h: Add copyright and clean up.

1 files changed, 122 insertions, 0 deletions

diff --git a/sysdeps/vax/mul_1.s b/sysdeps/vax/mul_1.s
new file mode 100644
index 0000000000..3fe375bacf
--- /dev/null
+++ b/sysdeps/vax/mul_1.s
@@ -0,0 +1,122 @@
+# VAX __mpn_mul_1 -- Multiply a limb vector with a limb and store
+# the result in a second limb vector.
+
+# Copyright (C) 1992, 1994 Free Software Foundation, Inc.
+
+# This file is part of the GNU MP Library.
+
+# The GNU MP Library is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Library General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or (at your
+# option) any later version.
+
+# The GNU MP 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 Library General Public
+# License for more details.
+
+# You should have received a copy of the GNU Library General Public License
+# along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
+# the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+
+# INPUT PARAMETERS
+# res_ptr	(sp + 4)
+# s1_ptr	(sp + 8)
+# size		(sp + 12)
+# s2_limb	(sp + 16)
+
+.text
+	.align 1
+.globl ___mpn_mul_1
+___mpn_mul_1:
+	.word	0xfc0
+	movl	12(ap),r4
+	movl	8(ap),r8
+	movl	4(ap),r9
+	movl	16(ap),r6
+	jlss	s2_big
+
+# One might want to combine the addl2 and the store below, but that
+# is actually just slower according to my timing tests.  (VAX 3600)
+
+	clrl	r3
+	incl	r4
+	ashl	$-1,r4,r7
+	jlbc	r4,L1
+	clrl	r11
+
+# Loop for S2_LIMB < 0x80000000
+Loop1:	movl	(r8)+,r1
+	jlss	L1n0
+	emul	r1,r6,$0,r2
+	addl2	r11,r2
+	adwc	$0,r3
+	movl	r2,(r9)+
+L1:	movl	(r8)+,r1
+	jlss	L1n1
+L1p1:	emul	r1,r6,$0,r10
+	addl2	r3,r10
+	adwc	$0,r11
+	movl	r10,(r9)+
+
+	jsobgtr	r7,Loop1
+	movl	r11,r0
+	ret
+
+L1n0:	emul	r1,r6,$0,r2
+	addl2	r11,r2
+	adwc	r6,r3
+	movl	r2,(r9)+
+	movl	(r8)+,r1
+	jgeq	L1p1
+L1n1:	emul	r1,r6,$0,r10
+	addl2	r3,r10
+	adwc	r6,r11
+	movl	r10,(r9)+
+
+	jsobgtr	r7,Loop1
+	movl	r11,r0
+	ret
+
+
+s2_big:	clrl	r3
+	incl	r4
+	ashl	$-1,r4,r7
+	jlbc	r4,L2
+	clrl	r11
+
+# Loop for S2_LIMB >= 0x80000000
+Loop2:	movl	(r8)+,r1
+	jlss	L2n0
+	emul	r1,r6,$0,r2
+	addl2	r11,r2
+	adwc	r1,r3
+	movl	r2,(r9)+
+L2:	movl	(r8)+,r1
+	jlss	L2n1
+L2p1:	emul	r1,r6,$0,r10
+	addl2	r3,r10
+	adwc	r1,r11
+	movl	r10,(r9)+
+
+	jsobgtr	r7,Loop2
+	movl	r11,r0
+	ret
+
+L2n0:	emul	r1,r6,$0,r2
+	addl2	r1,r3
+	addl2	r11,r2
+	adwc	r6,r3
+	movl	r2,(r9)+
+	movl	(r8)+,r1
+	jgeq	L2p1
+L2n1:	emul	r1,r6,$0,r10
+	addl2	r1,r11
+	addl2	r3,r10
+	adwc	r6,r11
+	movl	r10,(r9)+
+
+	jsobgtr	r7,Loop2
+	movl	r11,r0
+	ret