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diff --git a/gmp/mpn/ia64/submul_1.asm b/gmp/mpn/ia64/submul_1.asm
new file mode 100644
index 00000000..ae46e55d
--- /dev/null
+++ b/gmp/mpn/ia64/submul_1.asm
@@ -0,0 +1,634 @@
+dnl  IA-64 mpn_submul_1 -- Multiply a limb vector with a limb and subtract the
+dnl  result from a second limb vector.
+
+dnl  Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+
+dnl  This file is part of the GNU MP Library.
+
+dnl  The GNU MP Library is free software; you can redistribute it and/or modify
+dnl  it under the terms of the GNU Lesser General Public License as published
+dnl  by the Free Software Foundation; either version 3 of the License, or (at
+dnl  your option) any later version.
+
+dnl  The GNU MP Library is distributed in the hope that it will be useful, but
+dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+dnl  License for more details.
+
+dnl  You should have received a copy of the GNU Lesser General Public License
+dnl  along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.
+
+include(`../config.m4')
+
+C         cycles/limb
+C Itanium:    4.0
+C Itanium 2:  2.25 (alignment dependent, sometimes it seems to need 3 c/l)
+
+C TODO
+C  * Optimize feed-in and wind-down code, both for speed and code size.
+C  * Handle low limb input and results specially, using a common stf8 in the
+C    epilogue.
+C  * Delay r8, r10 initialization, put cmp-p6 in 1st bundle and br .Ldone in
+C    2nd bundle.  This will allow the bbb bundle to be one cycle earlier and
+C    save a cycle.
+
+C INPUT PARAMETERS
+define(`rp', `r32')
+define(`up', `r33')
+define(`n',  `r34')
+define(`vl', `r35')
+
+ASM_START()
+PROLOGUE(mpn_submul_1)
+	.prologue
+	.save	ar.lc, r2
+	.body
+
+ifdef(`HAVE_ABI_32',
+`	addp4		rp = 0, rp		C M I
+	addp4		up = 0, up		C M I
+	zxt4		n = n			C I
+	;;
+')
+{.mmi
+	mov		r10 = rp		C M I
+	mov		r9 = up			C M I
+	sub		vl = r0, vl		C M I	negate vl
+}
+{.mmi
+	ldf8		f8 = [rp], 8		C M
+	ldf8		f7 = [up], 8		C M
+	add		r19 = -1, n		C M I	n - 1
+	;;
+}
+{.mmi
+	cmp.eq		p6, p0 = 0, vl		C M I
+	mov		r8 = 0			C M I	zero cylimb
+	mov		r2 = ar.lc		C I0
+}
+{.mmi
+	setf.sig	f6 = vl			C M2 M3
+	and		r14 = 3, n		C M I
+	shr.u		r19 = r19, 2		C I0
+	;;
+}
+{.mmb
+	nop		0
+	cmp.eq		p10, p0 = 0, r14	C M I
+   (p6)	br.spnt		.Ldone			C B	vl == 0
+}
+{.mmi
+	cmp.eq		p11, p0 = 2, r14	C M I
+	cmp.eq		p12, p0 = 3, r14	C M I
+	mov		ar.lc = r19		C I0
+}
+{.bbb
+  (p10)	br.dptk		.Lb00			C B
+  (p11)	br.dptk		.Lb10			C B
+  (p12)	br.dptk		.Lb11			C B
+	;;
+}
+
+.Lb01:	br.cloop.dptk	.grt1
+
+	xma.l		f39 = f7, f6, f8
+	xma.hu		f43 = f7, f6, f8
+	;;
+	getf.sig	r27 = f39			C lo
+	getf.sig	r31 = f43			C hi
+	ld8		r20 = [r9], 8
+	br		.Lcj1
+
+.grt1:	ldf8		f44 = [rp], 8
+	ldf8		f32 = [up], 8
+	;;
+	ldf8		f45 = [rp], 8
+	ldf8		f33 = [up], 8
+	;;
+	ldf8		f46 = [rp], 8
+	xma.l		f39 = f7, f6, f8
+	ldf8		f34 = [up], 8
+	xma.hu		f43 = f7, f6, f8
+	;;
+	ldf8		f47 = [rp], 8
+	xma.l		f36 = f32, f6, f44
+	ldf8		f35 = [up], 8
+	xma.hu		f40 = f32, f6, f44
+	br.cloop.dptk	.grt5
+	;;
+
+	getf.sig	r27 = f39			C lo
+	xma.l		f37 = f33, f6, f45
+	ld8		r20 = [r9], 8
+	xma.hu		f41 = f33, f6, f45
+	;;
+	getf.sig	r31 = f43			C hi
+	getf.sig	r24 = f36			C lo
+	xma.l		f38 = f34, f6, f46
+	ld8		r21 = [r9], 8
+	xma.hu		f42 = f34, f6, f46
+	;;
+	getf.sig	r28 = f40			C hi
+	getf.sig	r25 = f37			C lo
+	xma.l		f39 = f35, f6, f47
+	ld8		r22 = [r9], 8
+	xma.hu		f43 = f35, f6, f47
+	;;
+	getf.sig	r29 = f41			C hi
+	getf.sig	r26 = f38			C lo
+	ld8		r23 = [r9], 8
+	br		.Lcj5
+
+.grt5:	ldf8		f44 = [rp], 8
+	ldf8		f32 = [up], 8
+	;;
+	getf.sig	r27 = f39			C lo
+	xma.l		f37 = f33, f6, f45
+	ld8		r20 = [r9], 8
+	xma.hu		f41 = f33, f6, f45
+	;;
+	ldf8		f45 = [rp], 8
+	getf.sig	r31 = f43			C hi
+	ldf8		f33 = [up], 8
+	;;
+	getf.sig	r24 = f36			C lo
+	xma.l		f38 = f34, f6, f46
+	ld8		r21 = [r9], 8
+	xma.hu		f42 = f34, f6, f46
+	;;
+	ldf8		f46 = [rp], 8
+	getf.sig	r28 = f40			C hi
+	ldf8		f34 = [up], 8
+	;;
+	getf.sig	r25 = f37			C lo
+	xma.l		f39 = f35, f6, f47
+	ld8		r22 = [r9], 8
+	xma.hu		f43 = f35, f6, f47
+	;;
+	ldf8		f47 = [rp], 8
+	getf.sig	r29 = f41			C hi
+	ldf8		f35 = [up], 8
+	;;
+	getf.sig	r26 = f38			C lo
+	xma.l		f36 = f32, f6, f44
+	ld8		r23 = [r9], 8
+	xma.hu		f40 = f32, f6, f44
+	br.cloop.dptk	.Loop
+	br		.Lend
+
+
+.Lb10:	ldf8		f47 = [rp], 8
+	ldf8		f35 = [up], 8
+	br.cloop.dptk	.grt2
+
+	xma.l		f38 = f7, f6, f8
+	xma.hu		f42 = f7, f6, f8
+	;;
+	xma.l		f39 = f35, f6, f47
+	xma.hu		f43 = f35, f6, f47
+	;;
+	getf.sig	r26 = f38			C lo
+	getf.sig	r30 = f42			C hi
+	ld8		r23 = [r9], 8
+	;;
+	getf.sig	r27 = f39			C lo
+	getf.sig	r31 = f43			C hi
+	ld8		r20 = [r9], 8
+	br		.Lcj2
+
+.grt2:	ldf8		f44 = [rp], 8
+	ldf8		f32 = [up], 8
+	;;
+	ldf8		f45 = [rp], 8
+	ldf8		f33 = [up], 8
+	xma.l		f38 = f7, f6, f8
+	xma.hu		f42 = f7, f6, f8
+	;;
+	ldf8		f46 = [rp], 8
+	ldf8		f34 = [up], 8
+	xma.l		f39 = f35, f6, f47
+	xma.hu		f43 = f35, f6, f47
+	;;
+	ldf8		f47 = [rp], 8
+	ldf8		f35 = [up], 8
+	;;
+	getf.sig	r26 = f38			C lo
+	xma.l		f36 = f32, f6, f44
+	ld8		r23 = [r9], 8
+	xma.hu		f40 = f32, f6, f44
+	br.cloop.dptk	.grt6
+
+	getf.sig	r30 = f42			C hi
+	;;
+	getf.sig	r27 = f39			C lo
+	xma.l		f37 = f33, f6, f45
+	ld8		r20 = [r9], 8
+	xma.hu		f41 = f33, f6, f45
+	;;
+	getf.sig	r31 = f43			C hi
+	getf.sig	r24 = f36			C lo
+	xma.l		f38 = f34, f6, f46
+	ld8		r21 = [r9], 8
+	xma.hu		f42 = f34, f6, f46
+	;;
+	getf.sig	r28 = f40			C hi
+	getf.sig	r25 = f37			C lo
+	xma.l		f39 = f35, f6, f47
+	ld8		r22 = [r9], 8
+	xma.hu		f43 = f35, f6, f47
+	br		.Lcj6
+
+.grt6:	ldf8		f44 = [rp], 8
+	getf.sig	r30 = f42			C hi
+	ldf8		f32 = [up], 8
+	;;
+	getf.sig	r27 = f39			C lo
+	xma.l		f37 = f33, f6, f45
+	ld8		r20 = [r9], 8
+	xma.hu		f41 = f33, f6, f45
+	;;
+	ldf8		f45 = [rp], 8
+	getf.sig	r31 = f43			C hi
+	ldf8		f33 = [up], 8
+	;;
+	getf.sig	r24 = f36			C lo
+	xma.l		f38 = f34, f6, f46
+	ld8		r21 = [r9], 8
+	xma.hu		f42 = f34, f6, f46
+	;;
+	ldf8		f46 = [rp], 8
+	getf.sig	r28 = f40			C hi
+	ldf8		f34 = [up], 8
+	;;
+	getf.sig	r25 = f37			C lo
+	xma.l		f39 = f35, f6, f47
+	ld8		r22 = [r9], 8
+	xma.hu		f43 = f35, f6, f47
+	br		.LL10
+
+
+.Lb11:	ldf8		f46 = [rp], 8
+	ldf8		f34 = [up], 8
+	;;
+	ldf8		f47 = [rp], 8
+	ldf8		f35 = [up], 8
+	br.cloop.dptk	.grt3
+
+	xma.l		f37 = f7, f6, f8
+	xma.hu		f41 = f7, f6, f8
+	;;
+	xma.l		f38 = f34, f6, f46
+	xma.hu		f42 = f34, f6, f46
+	;;
+	getf.sig	r25 = f37			C lo
+	xma.l		f39 = f35, f6, f47
+	xma.hu		f43 = f35, f6, f47
+	;;
+	getf.sig	r29 = f41			C hi
+	ld8		r22 = [r9], 8
+	;;
+	getf.sig	r26 = f38			C lo
+	getf.sig	r30 = f42			C hi
+	ld8		r23 = [r9], 8
+	;;
+	getf.sig	r27 = f39			C lo
+	getf.sig	r31 = f43			C hi
+	ld8		r20 = [r9], 8
+	br		.Lcj3
+
+.grt3:	ldf8		f44 = [rp], 8
+	xma.l		f37 = f7, f6, f8
+	ldf8		f32 = [up], 8
+	xma.hu		f41 = f7, f6, f8
+	;;
+	ldf8		f45 = [rp], 8
+	xma.l		f38 = f34, f6, f46
+	ldf8		f33 = [up], 8
+	xma.hu		f42 = f34, f6, f46
+	;;
+	ldf8		f46 = [rp], 8
+	ldf8		f34 = [up], 8
+	;;
+	getf.sig	r25 = f37			C lo
+	xma.l		f39 = f35, f6, f47
+	ld8		r22 = [r9], 8
+	xma.hu		f43 = f35, f6, f47
+	;;
+	ldf8		f47 = [rp], 8
+	getf.sig	r29 = f41			C hi
+	ldf8		f35 = [up], 8
+	;;
+	getf.sig	r26 = f38			C lo
+	xma.l		f36 = f32, f6, f44
+	ld8		r23 = [r9], 8
+	xma.hu		f40 = f32, f6, f44
+	br.cloop.dptk	.grt7
+	;;
+
+	getf.sig	r30 = f42			C hi
+	getf.sig	r27 = f39			C lo
+	xma.l		f37 = f33, f6, f45
+	ld8		r20 = [r9], 8
+	xma.hu		f41 = f33, f6, f45
+	;;
+	getf.sig	r31 = f43			C hi
+	getf.sig	r24 = f36			C lo
+	xma.l		f38 = f34, f6, f46
+	ld8		r21 = [r9], 8
+	xma.hu		f42 = f34, f6, f46
+	br		.Lcj7
+
+.grt7:	ldf8		f44 = [rp], 8
+	getf.sig	r30 = f42			C hi
+	ldf8		f32 = [up], 8
+	;;
+	getf.sig	r27 = f39			C lo
+	xma.l		f37 = f33, f6, f45
+	ld8		r20 = [r9], 8
+	xma.hu		f41 = f33, f6, f45
+	;;
+	ldf8		f45 = [rp], 8
+	getf.sig	r31 = f43			C hi
+	ldf8		f33 = [up], 8
+	;;
+	getf.sig	r24 = f36			C lo
+	xma.l		f38 = f34, f6, f46
+	ld8		r21 = [r9], 8
+	xma.hu		f42 = f34, f6, f46
+	br		.LL11
+
+
+.Lb00:	ldf8		f45 = [rp], 8
+	ldf8		f33 = [up], 8
+	;;
+	ldf8		f46 = [rp], 8
+	ldf8		f34 = [up], 8
+	;;
+	ldf8		f47 = [rp], 8
+	xma.l		f36 = f7, f6, f8
+	ldf8		f35 = [up], 8
+	xma.hu		f40 = f7, f6, f8
+	br.cloop.dptk	.grt4
+
+	xma.l		f37 = f33, f6, f45
+	xma.hu		f41 = f33, f6, f45
+	;;
+	getf.sig	r24 = f36			C lo
+	xma.l		f38 = f34, f6, f46
+	ld8		r21 = [r9], 8
+	xma.hu		f42 = f34, f6, f46
+	;;
+	getf.sig	r28 = f40			C hi
+	xma.l		f39 = f35, f6, f47
+	getf.sig	r25 = f37			C lo
+	ld8		r22 = [r9], 8
+	xma.hu		f43 = f35, f6, f47
+	;;
+	getf.sig	r29 = f41			C hi
+	getf.sig	r26 = f38			C lo
+	ld8		r23 = [r9], 8
+	;;
+	getf.sig	r30 = f42			C hi
+	getf.sig	r27 = f39			C lo
+	ld8		r20 = [r9], 8
+	br		.Lcj4
+
+.grt4:	ldf8		f44 = [rp], 8
+	xma.l		f37 = f33, f6, f45
+	ldf8		f32 = [up], 8
+	xma.hu		f41 = f33, f6, f45
+	;;
+	ldf8		f45 = [rp], 8
+	ldf8		f33 = [up], 8
+	xma.l		f38 = f34, f6, f46
+	getf.sig	r24 = f36			C lo
+	ld8		r21 = [r9], 8
+	xma.hu		f42 = f34, f6, f46
+	;;
+	ldf8		f46 = [rp], 8
+	getf.sig	r28 = f40			C hi
+	ldf8		f34 = [up], 8
+	xma.l		f39 = f35, f6, f47
+	getf.sig	r25 = f37			C lo
+	ld8		r22 = [r9], 8
+	xma.hu		f43 = f35, f6, f47
+	;;
+	ldf8		f47 = [rp], 8
+	getf.sig	r29 = f41			C hi
+	ldf8		f35 = [up], 8
+	;;
+	getf.sig	r26 = f38			C lo
+	xma.l		f36 = f32, f6, f44
+	ld8		r23 = [r9], 8
+	xma.hu		f40 = f32, f6, f44
+	br.cloop.dptk	.grt8
+	;;
+
+	getf.sig	r30 = f42			C hi
+	getf.sig	r27 = f39			C lo
+	xma.l		f37 = f33, f6, f45
+	ld8		r20 = [r9], 8
+	xma.hu		f41 = f33, f6, f45
+	br		.Lcj8
+
+.grt8:	ldf8		f44 = [rp], 8
+	getf.sig	r30 = f42			C hi
+	ldf8		f32 = [up], 8
+	;;
+	getf.sig	r27 = f39			C lo
+	xma.l		f37 = f33, f6, f45
+	ld8		r20 = [r9], 8
+	xma.hu		f41 = f33, f6, f45
+	br		.LL00
+
+	ALIGN(32)
+.Loop:
+{.mmi
+	ldf8		f44 = [rp], 8
+	cmp.ltu		p6, p0 = r27, r8	C lo cmp
+	sub		r14 = r27, r8		C lo sub
+}
+{.mmi
+	getf.sig	r30 = f42			C hi
+	ldf8		f32 = [up], 8
+	sub		r8 = r20, r31		C hi sub
+	;;				C 01
+}
+{.mmf
+	getf.sig	r27 = f39			C lo
+	st8		[r10] = r14, 8
+	xma.l		f37 = f33, f6, f45
+}
+{.mfi
+	ld8		r20 = [r9], 8
+	xma.hu		f41 = f33, f6, f45
+   (p6)	add		r8 = 1, r8
+	;;				C 02
+}
+{.mmi
+.LL00:	ldf8		f45 = [rp], 8
+	cmp.ltu		p6, p0 = r24, r8
+	sub		r14 = r24, r8
+}
+{.mmi
+	getf.sig	r31 = f43			C hi
+	ldf8		f33 = [up], 8
+	sub		r8 = r21, r28
+	;;				C 03
+}
+{.mmf
+	getf.sig	r24 = f36			C lo
+	st8		[r10] = r14, 8
+	xma.l		f38 = f34, f6, f46
+}
+{.mfi
+	ld8		r21 = [r9], 8
+	xma.hu		f42 = f34, f6, f46
+   (p6)	add		r8 = 1, r8
+	;;				C 04
+}
+{.mmi
+.LL11:	ldf8		f46 = [rp], 8
+	cmp.ltu		p6, p0 = r25, r8
+	sub		r14 = r25, r8
+}
+{.mmi
+	getf.sig	r28 = f40			C hi
+	ldf8		f34 = [up], 8
+	sub		r8 = r22, r29
+	;;				C 05
+}
+{.mmf
+	getf.sig	r25 = f37			C lo
+	st8		[r10] = r14, 8
+	xma.l		f39 = f35, f6, f47
+}
+{.mfi
+	ld8		r22 = [r9], 8
+	xma.hu		f43 = f35, f6, f47
+   (p6)	add		r8 = 1, r8
+	;;				C 06
+}
+{.mmi
+.LL10:	ldf8		f47 = [rp], 8
+	cmp.ltu		p6, p0 = r26, r8
+	sub		r14 = r26, r8
+}
+{.mmi
+	getf.sig	r29 = f41			C hi
+	ldf8		f35 = [up], 8
+	sub		r8 = r23, r30
+	;;				C 07
+}
+{.mmf
+	getf.sig	r26 = f38			C lo
+	st8		[r10] = r14, 8
+	xma.l		f36 = f32, f6, f44
+}
+{.mfi
+	ld8		r23 = [r9], 8
+	xma.hu		f40 = f32, f6, f44
+   (p6)	add		r8 = 1, r8
+}
+	br.cloop.dptk	.Loop
+	;;
+
+.Lend:
+	cmp.ltu		p6, p0 = r27, r8
+	sub		r14 = r27, r8
+	getf.sig	r30 = f42
+	sub		r8 = r20, r31
+	;;
+	getf.sig	r27 = f39
+	st8		[r10] = r14, 8
+	xma.l		f37 = f33, f6, f45
+	ld8		r20 = [r9], 8
+	xma.hu		f41 = f33, f6, f45
+   (p6)	add		r8 = 1, r8
+	;;
+.Lcj8:
+	cmp.ltu		p6, p0 = r24, r8
+	sub		r14 = r24, r8
+	getf.sig	r31 = f43
+	sub		r8 = r21, r28
+	;;
+	getf.sig	r24 = f36
+	st8		[r10] = r14, 8
+	xma.l		f38 = f34, f6, f46
+	ld8		r21 = [r9], 8
+	xma.hu		f42 = f34, f6, f46
+   (p6)	add		r8 = 1, r8
+	;;
+.Lcj7:
+	cmp.ltu		p6, p0 = r25, r8
+	sub		r14 = r25, r8
+	getf.sig	r28 = f40
+	sub		r8 = r22, r29
+	;;
+	getf.sig	r25 = f37
+	st8		[r10] = r14, 8
+	xma.l		f39 = f35, f6, f47
+	ld8		r22 = [r9], 8
+	xma.hu		f43 = f35, f6, f47
+   (p6)	add		r8 = 1, r8
+	;;
+.Lcj6:
+	cmp.ltu		p6, p0 = r26, r8
+	sub		r14 = r26, r8
+	getf.sig	r29 = f41
+	sub		r8 = r23, r30
+	;;
+	getf.sig	r26 = f38
+	st8		[r10] = r14, 8
+	ld8		r23 = [r9], 8
+   (p6)	add		r8 = 1, r8
+	;;
+.Lcj5:
+	cmp.ltu		p6, p0 = r27, r8
+	sub		r14 = r27, r8
+	getf.sig	r30 = f42
+	sub		r8 = r20, r31
+	;;
+	getf.sig	r27 = f39
+	st8		[r10] = r14, 8
+	ld8		r20 = [r9], 8
+   (p6)	add		r8 = 1, r8
+	;;
+.Lcj4:
+	cmp.ltu		p6, p0 = r24, r8
+	sub		r14 = r24, r8
+	getf.sig	r31 = f43
+	sub		r8 = r21, r28
+	;;
+	st8		[r10] = r14, 8
+   (p6)	add		r8 = 1, r8
+	;;
+.Lcj3:
+	cmp.ltu		p6, p0 = r25, r8
+	sub		r14 = r25, r8
+	sub		r8 = r22, r29
+	;;
+	st8		[r10] = r14, 8
+   (p6)	add		r8 = 1, r8
+	;;
+.Lcj2:
+	cmp.ltu		p6, p0 = r26, r8
+	sub		r14 = r26, r8
+	sub		r8 = r23, r30
+	;;
+	st8		[r10] = r14, 8
+   (p6)	add		r8 = 1, r8
+	;;
+.Lcj1:
+	cmp.ltu		p6, p0 = r27, r8
+	sub		r14 = r27, r8
+	sub		r8 = r20, r31
+	;;
+	st8		[r10] = r14, 8
+	mov		ar.lc = r2
+   (p6)	add		r8 = 1, r8
+	br.ret.sptk.many b0
+.Ldone:	mov		ar.lc = r2
+	br.ret.sptk.many b0
+EPILOGUE()
+ASM_END()