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, 175 insertions, 0 deletions

diff --git a/sysdeps/alpha/alphaev5/lshift.s b/sysdeps/alpha/alphaev5/lshift.s
new file mode 100644
index 0000000000..fdb089550f
--- /dev/null
+++ b/sysdeps/alpha/alphaev5/lshift.s
@@ -0,0 +1,175 @@
+ # Alpha EV5 __mpn_lshift --
+
+ # Copyright (C) 1994, 1995 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	r16
+ # s1_ptr	r17
+ # size		r18
+ # cnt		r19
+
+ # This code runs at 4.25 cycles/limb on the EV5.
+
+	.set	noreorder
+	.set	noat
+.text
+	.align	3
+	.globl	__mpn_lshift
+	.ent	__mpn_lshift
+__mpn_lshift:
+	.frame	$30,0,$26,0
+
+	s8addq	$18,$17,$17	# make r17 point at end of s1
+	ldq	$4,-8($17)	# load first limb
+	subq	$31,$19,$20
+	s8addq	$18,$16,$16	# make r16 point at end of RES
+	subq	$18,1,$18
+	and	$18,4-1,$28	# number of limbs in first loop
+	srl	$4,$20,$0	# compute function result
+
+	beq	$28,L0
+	subq	$18,$28,$18
+
+	.align	3
+Loop0:	ldq	$3,-16($17)
+	subq	$16,8,$16
+	sll	$4,$19,$5
+	subq	$17,8,$17
+	subq	$28,1,$28
+	srl	$3,$20,$6
+	or	$3,$3,$4
+	or	$5,$6,$8
+	stq	$8,0($16)
+	bne	$28,Loop0
+
+L0:	sll	$4,$19,$24
+	beq	$18,Lend
+ # warm up phase 1
+	ldq	$1,-16($17)
+	subq	$18,4,$18
+	ldq	$2,-24($17)
+	ldq	$3,-32($17)
+	ldq	$4,-40($17)
+	beq	$18,Lcool1
+ # warm up phase 2
+	srl	$1,$20,$7
+	sll	$1,$19,$21
+	srl	$2,$20,$8
+	ldq	$1,-48($17)
+	sll	$2,$19,$22
+	ldq	$2,-56($17)
+	srl	$3,$20,$5
+	or	$7,$24,$7
+	sll	$3,$19,$23
+	or	$8,$21,$8
+	srl	$4,$20,$6
+	ldq	$3,-64($17)
+	sll	$4,$19,$24
+	ldq	$4,-72($17)
+	subq	$18,4,$18
+	beq	$18,Lcool1
+	.align  4
+ # main loop
+Loop:	stq	$7,-8($16)
+	or	$5,$22,$5
+	stq	$8,-16($16)
+	or	$6,$23,$6
+
+	srl	$1,$20,$7
+	subq	$18,4,$18
+	sll	$1,$19,$21
+	unop	# ldq	$31,-96($17)
+
+	srl	$2,$20,$8
+	ldq	$1,-80($17)
+	sll	$2,$19,$22
+	ldq	$2,-88($17)
+
+	stq	$5,-24($16)
+	or	$7,$24,$7
+	stq	$6,-32($16)
+	or	$8,$21,$8
+
+	srl	$3,$20,$5
+	unop	# ldq	$31,-96($17)
+	sll	$3,$19,$23
+	subq	$16,32,$16
+
+	srl	$4,$20,$6
+	ldq	$3,-96($17
+	sll	$4,$19,$24
+	ldq	$4,-104($17)
+
+	subq	$17,32,$17
+	bne	$18,Loop
+	unop
+	unop
+ # cool down phase 2/1
+Lcool1:	stq	$7,-8($16)
+	or	$5,$22,$5
+	stq	$8,-16($16)
+	or	$6,$23,$6
+	srl	$1,$20,$7
+	sll	$1,$19,$21
+	srl	$2,$20,$8
+	sll	$2,$19,$22
+	stq	$5,-24($16)
+	or	$7,$24,$7
+	stq	$6,-32($16)
+	or	$8,$21,$8
+	srl	$3,$20,$5
+	sll	$3,$19,$23
+	srl	$4,$20,$6
+	sll	$4,$19,$24
+ # cool down phase 2/2
+	stq	$7,-40($16)
+	or	$5,$22,$5
+	stq	$8,-48($16)
+	or	$6,$23,$6
+	stq	$5,-56($16)
+	stq	$6,-64($16)
+ # cool down phase 2/3
+	stq	$24,-72($16)
+	ret	$31,($26),1
+
+ # cool down phase 1/1
+Lcool1:	srl	$1,$20,$7
+	sll	$1,$19,$21
+	srl	$2,$20,$8
+	sll	$2,$19,$22
+	srl	$3,$20,$5
+	or	$7,$24,$7
+	sll	$3,$19,$23
+	or	$8,$21,$8
+	srl	$4,$20,$6
+	sll	$4,$19,$24
+ # cool down phase 1/2
+	stq	$7,-8($16)
+	or	$5,$22,$5
+	stq	$8,-16($16)
+	or	$6,$23,$6
+	stq	$5,-24($16)
+	stq	$6,-32($16)
+	stq	$24,-40($16)
+	ret	$31,($26),1
+
+Lend	stq	$24,-8($16)
+	ret	$31,($26),1
+	.end	__mpn_lshift