Add 64-bit VIS3 optimized GMP routines for sparc.

	* math/Makefile: Recognize gmp-sysdep_routines.
	* sysdeps/sparc/sparc64/multiarch/Makefile: Add VIS3 optimized GMP routines
	to sysdeps.
	* sysdeps/sparc/sparc64/multiarch/add_n-vis3.S: New file.
	* sysdeps/sparc/sparc64/multiarch/add_n.S: New file.
	* sysdeps/sparc/sparc64/multiarch/addmul_1-vis3.S: New file.
	* sysdeps/sparc/sparc64/multiarch/addmul_1.S: New file.
	* sysdeps/sparc/sparc64/multiarch/mul_1-vis3.S: New file.
	* sysdeps/sparc/sparc64/multiarch/mul_1.S: New file.
	* sysdeps/sparc/sparc64/multiarch/sub_n-vis3.S: New file.
	* sysdeps/sparc/sparc64/multiarch/sub_n.S: New file.
	* sysdeps/sparc/sparc64/multiarch/submul_1-vis3.S: New file.
	* sysdeps/sparc/sparc64/multiarch/submul_1.S: New file.

11 files changed, 673 insertions, 0 deletions

diff --git a/sysdeps/sparc/sparc64/multiarch/Makefile b/sysdeps/sparc/sparc64/multiarch/Makefile
index 4ad7aff914..111ed5f115 100644
--- a/sysdeps/sparc/sparc64/multiarch/Makefile
+++ b/sysdeps/sparc/sparc64/multiarch/Makefile
@@ -10,3 +10,11 @@ ifeq ($(subdir),string)
 sysdep_routines += memcpy-ultra3 memcpy-niagara1 memcpy-niagara2 \
 		   memset-niagara1 memcpy-niagara4 memset-niagara4
 endif
+
+ifeq ($(subdir),stdlib)
+sysdep_routines += mul_1-vis3 addmul_1-vis3 submul_1-vis3 add_n-vis3 sub_n-vis3
+endif
+
+ifeq ($(subdir),math)
+gmp-sysdep_routines = mul_1-vis3 addmul_1-vis3 submul_1-vis3 add_n-vis3 sub_n-vis3
+endif
diff --git a/sysdeps/sparc/sparc64/multiarch/add_n-vis3.S b/sysdeps/sparc/sparc64/multiarch/add_n-vis3.S
new file mode 100644
index 0000000000..185f311690
--- /dev/null
+++ b/sysdeps/sparc/sparc64/multiarch/add_n-vis3.S
@@ -0,0 +1,67 @@
+! SPARC v9 64-bit VIS3 __mpn_add_n -- Add two limb vectors of the same length > 0 and
+! store sum in a third limb vector.
+!
+! Copyright (C) 2013 Free Software Foundation, Inc.
+! This file is part of the GNU C Library.
+! Contributed by David S. Miller <davem@davemloft.net>
+!
+! The GNU C Library is free software; you can redistribute it and/or
+! modify it under the terms of the GNU Lesser General Public
+! License as published by the Free Software Foundation; either
+! version 2.1 of the License, or (at your option) any later version.
+!
+! The GNU C 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
+! Lesser General Public License for more details.
+!
+! You should have received a copy of the GNU Lesser General Public
+! License along with the GNU C Library; if not, see
+! <http://www.gnu.org/licenses/>.
+
+#include <sysdep.h>
+
+#define res_ptr	%o0
+#define s1_ptr	%o1
+#define s2_ptr	%o2
+#define sz	%o3
+#define tmp1	%g1
+#define tmp2	%g2
+#define tmp3	%g3
+#define tmp4	%o4
+
+	.register	%g2,#scratch
+	.register	%g3,#scratch
+ENTRY(__mpn_add_n_vis3)
+	subcc	sz, 1, sz
+	be	.Lfinal_limb
+	 cmp	%g0, 0
+
+.Lloop:
+	ldx	[s2_ptr + 0x00], tmp1
+	add	s2_ptr, 0x10, s2_ptr
+	ldx	[s1_ptr + 0x00], tmp2
+	add	s1_ptr, 0x10, s1_ptr
+	ldx	[s2_ptr - 0x08], tmp3
+	add	res_ptr, 0x10, res_ptr
+	ldx	[s1_ptr - 0x08], tmp4
+	sub	sz, 2, sz
+	addxccc	tmp1, tmp2, tmp1
+	stx	tmp1, [res_ptr - 0x10]
+	addxccc	tmp3, tmp4, tmp3
+	brgz	sz, .Lloop
+	stx	tmp3, [res_ptr - 0x08]
+
+	brlz,pt	sz, .Lfinish
+	 nop
+
+.Lfinal_limb:
+	ldx	[s2_ptr + 0x00], tmp1
+	ldx	[s1_ptr + 0x00], tmp2
+	addxccc	tmp1, tmp2, tmp1
+	stx	tmp1, [res_ptr + 0x00]
+
+.Lfinish:
+	retl
+	 addxc	%g0, %g0, %o0
+END(__mpn_add_n_vis3)
diff --git a/sysdeps/sparc/sparc64/multiarch/add_n.S b/sysdeps/sparc/sparc64/multiarch/add_n.S
new file mode 100644
index 0000000000..25cae3977a
--- /dev/null
+++ b/sysdeps/sparc/sparc64/multiarch/add_n.S
@@ -0,0 +1,56 @@
+/* Multiple versions of add_n
+
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   Contributed by David S. Miller (davem@davemloft.net)
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+
+ENTRY(__mpn_add_n)
+	.type	__mpn_add_n, @gnu_indirect_function
+# ifdef SHARED
+	SETUP_PIC_REG_LEAF(o3, o5)
+# endif
+	set	HWCAP_SPARC_VIS3, %o1
+	andcc	%o0, %o1, %g0
+	be	1f
+	 nop
+# ifdef SHARED
+	sethi	%gdop_hix22(__mpn_add_n_vis3), %o1
+	xor	%o1, %gdop_lox10(__mpn_add_n_vis3), %o1
+# else
+	set	__mpn_add_n_vis3, %o1
+# endif
+	ba	10f
+	 nop
+1:
+# ifdef SHARED
+	sethi	%gdop_hix22(__mpn_add_n_generic), %o1
+	xor	%o1, %gdop_lox10(__mpn_add_n_generic), %o1
+# else
+	set	__mpn_add_n_vis3, %o1
+# endif
+10:
+# ifdef SHARED
+	add	%o3, %o1, %o1
+# endif
+	retl
+	 mov	%o1, %o0
+END(__mpn_add_n)
+
+#define __mpn_add_n __mpn_add_n_generic
+#include "../add_n.S"
diff --git a/sysdeps/sparc/sparc64/multiarch/addmul_1-vis3.S b/sysdeps/sparc/sparc64/multiarch/addmul_1-vis3.S
new file mode 100644
index 0000000000..f955b27c00
--- /dev/null
+++ b/sysdeps/sparc/sparc64/multiarch/addmul_1-vis3.S
@@ -0,0 +1,87 @@
+! SPARC v9 64-bit VIS3 __mpn_addmul_1 -- Multiply a limb vector with a
+! limb and add the result to a second limb vector.
+!
+! Copyright (C) 2013 Free Software Foundation, Inc.
+! This file is part of the GNU C Library.
+! Contributed by David S. Miller <davem@davemloft.net>
+!
+! The GNU C Library is free software; you can redistribute it and/or
+! modify it under the terms of the GNU Lesser General Public
+! License as published by the Free Software Foundation; either
+! version 2.1 of the License, or (at your option) any later version.
+!
+! The GNU C 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
+! Lesser General Public License for more details.
+!
+! You should have received a copy of the GNU Lesser General Public
+! License along with the GNU C Library; if not, see
+! <http://www.gnu.org/licenses/>.
+
+#include <sysdep.h>
+
+#define res_ptr	%i0
+#define s1_ptr	%i1
+#define sz	%i2
+#define s2_limb	%i3
+#define carry	%o5
+#define tmp1	%g1
+#define tmp2	%g2
+#define tmp3	%g3
+#define tmp4	%o4
+#define tmp5	%l0
+#define tmp6	%l1
+#define tmp7	%l2
+#define tmp8	%l3
+
+	.register	%g2,#scratch
+	.register	%g3,#scratch
+ENTRY(__mpn_addmul_1_vis3)
+	save	%sp, -176, %sp
+	subcc	sz, 1, sz
+	be	.Lfinal_limb
+	 clr	carry
+
+.Lloop:
+	ldx	[s1_ptr  + 0x00], tmp1
+	ldx	[res_ptr + 0x00], tmp3
+	ldx	[s1_ptr  + 0x08], tmp2
+	ldx	[res_ptr + 0x08], tmp4
+	mulx	tmp1, s2_limb, tmp5
+	add	s1_ptr, 0x10, s1_ptr
+	umulxhi	tmp1, s2_limb, tmp6
+	add	res_ptr, 0x10, res_ptr
+	mulx	tmp2, s2_limb, tmp7
+	sub	sz, 2, sz
+	umulxhi	tmp2, s2_limb, tmp8
+	addcc	carry, tmp5, tmp5
+	addxc	%g0, tmp6, carry
+	addcc	tmp3, tmp5, tmp5
+	addxc	%g0, carry, carry
+	stx	tmp5, [res_ptr - 0x10]
+	addcc	carry, tmp7, tmp7
+	addxc	%g0, tmp8, carry
+	addcc	tmp4, tmp7, tmp7
+	addxc	%g0, carry, carry
+	brgz	sz, .Lloop
+	 stx	tmp7, [res_ptr - 0x08]
+
+	brlz,pt	sz, .Lfinish
+	 nop
+
+.Lfinal_limb:
+	ldx	[s1_ptr  + 0x00], tmp1
+	ldx	[res_ptr + 0x00], tmp3
+	mulx	tmp1, s2_limb, tmp5
+	umulxhi	tmp1, s2_limb, tmp6
+	addcc	carry, tmp5, tmp5
+	addxc	%g0, tmp6, carry
+	addcc	tmp3, tmp5, tmp5
+	addxc	%g0, carry, carry
+	stx	tmp5, [res_ptr + 0x00]
+
+.Lfinish:
+	jmpl	%i7 + 8, %g0
+	 restore carry, 0, %o0
+END(__mpn_addmul_1_vis3)
diff --git a/sysdeps/sparc/sparc64/multiarch/addmul_1.S b/sysdeps/sparc/sparc64/multiarch/addmul_1.S
new file mode 100644
index 0000000000..a1659e40e3
--- /dev/null
+++ b/sysdeps/sparc/sparc64/multiarch/addmul_1.S
@@ -0,0 +1,56 @@
+/* Multiple versions of addmul_1
+
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   Contributed by David S. Miller (davem@davemloft.net)
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+
+ENTRY(__mpn_addmul_1)
+	.type	__mpn_addmul_1, @gnu_indirect_function
+# ifdef SHARED
+	SETUP_PIC_REG_LEAF(o3, o5)
+# endif
+	set	HWCAP_SPARC_VIS3, %o1
+	andcc	%o0, %o1, %g0
+	be	1f
+	 nop
+# ifdef SHARED
+	sethi	%gdop_hix22(__mpn_addmul_1_vis3), %o1
+	xor	%o1, %gdop_lox10(__mpn_addmul_1_vis3), %o1
+# else
+	set	__mpn_addmul_1_vis3, %o1
+# endif
+	ba	10f
+	 nop
+1:
+# ifdef SHARED
+	sethi	%gdop_hix22(__mpn_addmul_1_generic), %o1
+	xor	%o1, %gdop_lox10(__mpn_addmul_1_generic), %o1
+# else
+	set	__mpn_addmul_1_vis3, %o1
+# endif
+10:
+# ifdef SHARED
+	add	%o3, %o1, %o1
+# endif
+	retl
+	 mov	%o1, %o0
+END(__mpn_addmul_1)
+
+#define __mpn_addmul_1 __mpn_addmul_1_generic
+#include "../addmul_1.S"
diff --git a/sysdeps/sparc/sparc64/multiarch/mul_1-vis3.S b/sysdeps/sparc/sparc64/multiarch/mul_1-vis3.S
new file mode 100644
index 0000000000..61fbe27a43
--- /dev/null
+++ b/sysdeps/sparc/sparc64/multiarch/mul_1-vis3.S
@@ -0,0 +1,73 @@
+! SPARC v9 64-bit VIS3 __mpn_mul_1 -- Multiply a limb vector with a single
+! limb and store the product in a second limb vector.
+!
+! Copyright (C) 2013 Free Software Foundation, Inc.
+! This file is part of the GNU C Library.
+! Contributed by David S. Miller <davem@davemloft.net>
+!
+! The GNU C Library is free software; you can redistribute it and/or
+! modify it under the terms of the GNU Lesser General Public
+! License as published by the Free Software Foundation; either
+! version 2.1 of the License, or (at your option) any later version.
+!
+! The GNU C 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
+! Lesser General Public License for more details.
+!
+! You should have received a copy of the GNU Lesser General Public
+! License along with the GNU C Library; if not, see
+! <http://www.gnu.org/licenses/>.
+
+#include <sysdep.h>
+
+#define res_ptr	%o0
+#define s1_ptr	%o1
+#define sz	%o2
+#define s2_limb	%o3
+#define carry	%o5
+#define tmp1	%g1
+#define tmp2	%g2
+#define tmp3	%g3
+#define tmp4	%o4
+
+	.register	%g2,#scratch
+	.register	%g3,#scratch
+ENTRY(__mpn_mul_1_vis3)
+	subcc	sz, 1, sz
+	be	.Lfinal_limb
+	 clr	carry
+
+.Lloop:
+	ldx	[s1_ptr + 0x00], tmp1
+	ldx	[s1_ptr + 0x08], tmp4
+	mulx	tmp1, s2_limb, tmp3
+	add	s1_ptr, 0x10, s1_ptr
+	umulxhi	tmp1, s2_limb, tmp2
+	sub	sz, 2, sz
+	mulx	tmp4, s2_limb, tmp1
+	add	res_ptr, 0x10, res_ptr
+	umulxhi	tmp4, s2_limb, tmp4
+	addcc	carry, tmp3, tmp3
+	stx	tmp3, [res_ptr - 0x10]
+	addxc	%g0, tmp2, carry
+	addcc	carry, tmp1, tmp1
+	addxc	%g0, tmp4, carry
+	brgz	sz, .Lloop
+	 stx	tmp1, [res_ptr - 0x08]
+
+	brlz,pt	sz, .Lfinish
+	 nop
+
+.Lfinal_limb:
+	ldx	[s1_ptr + 0x00], tmp1
+	mulx	tmp1, s2_limb, tmp3
+	umulxhi	tmp1, s2_limb, tmp2
+	addcc	carry, tmp3, tmp3
+	addxc	%g0, tmp2, carry
+	stx	tmp3, [res_ptr + 0x00]
+
+.Lfinish:
+	retl
+	 mov	carry, %o0
+END(__mpn_mul_1_vis3)
diff --git a/sysdeps/sparc/sparc64/multiarch/mul_1.S b/sysdeps/sparc/sparc64/multiarch/mul_1.S
new file mode 100644
index 0000000000..25f51bf810
--- /dev/null
+++ b/sysdeps/sparc/sparc64/multiarch/mul_1.S
@@ -0,0 +1,56 @@
+/* Multiple versions of mul_1
+
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   Contributed by David S. Miller (davem@davemloft.net)
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+
+ENTRY(__mpn_mul_1)
+	.type	__mpn_mul_1, @gnu_indirect_function
+# ifdef SHARED
+	SETUP_PIC_REG_LEAF(o3, o5)
+# endif
+	set	HWCAP_SPARC_VIS3, %o1
+	andcc	%o0, %o1, %g0
+	be	1f
+	 nop
+# ifdef SHARED
+	sethi	%gdop_hix22(__mpn_mul_1_vis3), %o1
+	xor	%o1, %gdop_lox10(__mpn_mul_1_vis3), %o1
+# else
+	set	__mpn_mul_1_vis3, %o1
+# endif
+	ba	10f
+	 nop
+1:
+# ifdef SHARED
+	sethi	%gdop_hix22(__mpn_mul_1_generic), %o1
+	xor	%o1, %gdop_lox10(__mpn_mul_1_generic), %o1
+# else
+	set	__mpn_mul_1_vis3, %o1
+# endif
+10:
+# ifdef SHARED
+	add	%o3, %o1, %o1
+# endif
+	retl
+	 mov	%o1, %o0
+END(__mpn_mul_1)
+
+#define __mpn_mul_1 __mpn_mul_1_generic
+#include "../mul_1.S"
diff --git a/sysdeps/sparc/sparc64/multiarch/sub_n-vis3.S b/sysdeps/sparc/sparc64/multiarch/sub_n-vis3.S
new file mode 100644
index 0000000000..4e9a786d32
--- /dev/null
+++ b/sysdeps/sparc/sparc64/multiarch/sub_n-vis3.S
@@ -0,0 +1,71 @@
+! SPARC v9 64-bit VIS3 __mpn_sub_n -- Subtract two limb vectors of the same length > 0
+! and store difference in a third limb vector.
+!
+! Copyright (C) 2013 Free Software Foundation, Inc.
+! This file is part of the GNU C Library.
+! Contributed by David S. Miller <davem@davemloft.net>
+!
+! The GNU C Library is free software; you can redistribute it and/or
+! modify it under the terms of the GNU Lesser General Public
+! License as published by the Free Software Foundation; either
+! version 2.1 of the License, or (at your option) any later version.
+!
+! The GNU C 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
+! Lesser General Public License for more details.
+!
+! You should have received a copy of the GNU Lesser General Public
+! License along with the GNU C Library; if not, see
+! <http://www.gnu.org/licenses/>.
+
+#include <sysdep.h>
+
+#define res_ptr	%o0
+#define s1_ptr	%o1
+#define s2_ptr	%o2
+#define sz	%o3
+#define tmp1	%g1
+#define tmp2	%g2
+#define tmp3	%g3
+#define tmp4	%o4
+
+	.register	%g2,#scratch
+	.register	%g3,#scratch
+ENTRY(__mpn_sub_n_vis3)
+	subcc	sz, 1, sz
+	be	.Lfinal_limb
+	 cmp	%g0, 1
+
+.Lloop:
+	ldx	[s2_ptr + 0x00], tmp1
+	add	s2_ptr, 0x10, s2_ptr
+	ldx	[s1_ptr + 0x00], tmp2
+	add	s1_ptr, 0x10, s1_ptr
+	ldx	[s2_ptr - 0x08], tmp3
+	add	res_ptr, 0x10, res_ptr
+	ldx	[s1_ptr - 0x08], tmp4
+	sub	sz, 2, sz
+	xnor	tmp1, %g0, tmp1
+	addxccc	tmp1, tmp2, tmp1
+	stx	tmp1, [res_ptr - 0x10]
+	xnor	tmp3, %g0, tmp3
+	addxccc	tmp3, tmp4, tmp3
+	brgz	sz, .Lloop
+	stx	tmp3, [res_ptr - 0x08]
+
+	brlz,pt	sz, .Lfinish
+	 nop
+
+.Lfinal_limb:
+	ldx	[s2_ptr + 0x00], tmp1
+	ldx	[s1_ptr + 0x00], tmp2
+	xnor	tmp1, %g0, tmp1
+	addxccc	tmp1, tmp2, tmp1
+	stx	tmp1, [res_ptr + 0x00]
+
+.Lfinish:
+	clr	%o0
+	retl
+	 movcc	%xcc, 1, %o0
+END(__mpn_sub_n_vis3)
diff --git a/sysdeps/sparc/sparc64/multiarch/sub_n.S b/sysdeps/sparc/sparc64/multiarch/sub_n.S
new file mode 100644
index 0000000000..5e15bea101
--- /dev/null
+++ b/sysdeps/sparc/sparc64/multiarch/sub_n.S
@@ -0,0 +1,56 @@
+/* Multiple versions of sub_n
+
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   Contributed by David S. Miller (davem@davemloft.net)
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+
+ENTRY(__mpn_sub_n)
+	.type	__mpn_sub_n, @gnu_indirect_function
+# ifdef SHARED
+	SETUP_PIC_REG_LEAF(o3, o5)
+# endif
+	set	HWCAP_SPARC_VIS3, %o1
+	andcc	%o0, %o1, %g0
+	be	1f
+	 nop
+# ifdef SHARED
+	sethi	%gdop_hix22(__mpn_sub_n_vis3), %o1
+	xor	%o1, %gdop_lox10(__mpn_sub_n_vis3), %o1
+# else
+	set	__mpn_sub_n_vis3, %o1
+# endif
+	ba	10f
+	 nop
+1:
+# ifdef SHARED
+	sethi	%gdop_hix22(__mpn_sub_n_generic), %o1
+	xor	%o1, %gdop_lox10(__mpn_sub_n_generic), %o1
+# else
+	set	__mpn_sub_n_vis3, %o1
+# endif
+10:
+# ifdef SHARED
+	add	%o3, %o1, %o1
+# endif
+	retl
+	 mov	%o1, %o0
+END(__mpn_sub_n)
+
+#define __mpn_sub_n __mpn_sub_n_generic
+#include "../sub_n.S"
diff --git a/sysdeps/sparc/sparc64/multiarch/submul_1-vis3.S b/sysdeps/sparc/sparc64/multiarch/submul_1-vis3.S
new file mode 100644
index 0000000000..8f10f918aa
--- /dev/null
+++ b/sysdeps/sparc/sparc64/multiarch/submul_1-vis3.S
@@ -0,0 +1,87 @@
+! SPARC v9 64-bit VIS3 __mpn_submul_1 -- Multiply a limb vector with a
+! limb and subtract the result from a second limb vector.
+!
+! Copyright (C) 2013 Free Software Foundation, Inc.
+! This file is part of the GNU C Library.
+! Contributed by David S. Miller <davem@davemloft.net>
+!
+! The GNU C Library is free software; you can redistribute it and/or
+! modify it under the terms of the GNU Lesser General Public
+! License as published by the Free Software Foundation; either
+! version 2.1 of the License, or (at your option) any later version.
+!
+! The GNU C 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
+! Lesser General Public License for more details.
+!
+! You should have received a copy of the GNU Lesser General Public
+! License along with the GNU C Library; if not, see
+! <http://www.gnu.org/licenses/>.
+
+#include <sysdep.h>
+
+#define res_ptr	%i0
+#define s1_ptr	%i1
+#define sz	%i2
+#define s2_limb	%i3
+#define carry	%o5
+#define tmp1	%g1
+#define tmp2	%g2
+#define tmp3	%g3
+#define tmp4	%o4
+#define tmp5	%l0
+#define tmp6	%l1
+#define tmp7	%l2
+#define tmp8	%l3
+
+	.register	%g2,#scratch
+	.register	%g3,#scratch
+ENTRY(__mpn_submul_1_vis3)
+	save	%sp, -176, %sp
+	subcc	sz, 1, sz
+	be	.Lfinal_limb
+	 clr	carry
+
+.Lloop:
+	ldx	[s1_ptr  + 0x00], tmp1
+	ldx	[res_ptr + 0x00], tmp3
+	ldx	[s1_ptr  + 0x08], tmp2
+	ldx	[res_ptr + 0x08], tmp4
+	mulx	tmp1, s2_limb, tmp5
+	add	s1_ptr, 0x10, s1_ptr
+	umulxhi	tmp1, s2_limb, tmp6
+	add	res_ptr, 0x10, res_ptr
+	mulx	tmp2, s2_limb, tmp7
+	sub	sz, 2, sz
+	umulxhi	tmp2, s2_limb, tmp8
+	addcc	carry, tmp5, tmp5
+	addxc	%g0, tmp6, carry
+	subcc	tmp3, tmp5, tmp5
+	addxc	%g0, carry, carry
+	stx	tmp5, [res_ptr - 0x10]
+	addcc	carry, tmp7, tmp7
+	addxc	%g0, tmp8, carry
+	subcc	tmp4, tmp7, tmp7
+	addxc	%g0, carry, carry
+	brgz	sz, .Lloop
+	 stx	tmp7, [res_ptr - 0x08]
+
+	brlz,pt	sz, .Lfinish
+	 nop
+
+.Lfinal_limb:
+	ldx	[s1_ptr  + 0x00], tmp1
+	ldx	[res_ptr + 0x00], tmp3
+	mulx	tmp1, s2_limb, tmp5
+	umulxhi	tmp1, s2_limb, tmp6
+	addcc	carry, tmp5, tmp5
+	addxc	%g0, tmp6, carry
+	subcc	tmp3, tmp5, tmp5
+	addxc	%g0, carry, carry
+	stx	tmp5, [res_ptr + 0x00]
+
+.Lfinish:
+	jmpl	%i7 + 8, %g0
+	 restore carry, 0, %o0
+END(__mpn_submul_1_vis3)
diff --git a/sysdeps/sparc/sparc64/multiarch/submul_1.S b/sysdeps/sparc/sparc64/multiarch/submul_1.S
new file mode 100644
index 0000000000..68552e9af0
--- /dev/null
+++ b/sysdeps/sparc/sparc64/multiarch/submul_1.S
@@ -0,0 +1,56 @@
+/* Multiple versions of submul_1
+
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   Contributed by David S. Miller (davem@davemloft.net)
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+
+ENTRY(__mpn_submul_1)
+	.type	__mpn_submul_1, @gnu_indirect_function
+# ifdef SHARED
+	SETUP_PIC_REG_LEAF(o3, o5)
+# endif
+	set	HWCAP_SPARC_VIS3, %o1
+	andcc	%o0, %o1, %g0
+	be	1f
+	 nop
+# ifdef SHARED
+	sethi	%gdop_hix22(__mpn_submul_1_vis3), %o1
+	xor	%o1, %gdop_lox10(__mpn_submul_1_vis3), %o1
+# else
+	set	__mpn_submul_1_vis3, %o1
+# endif
+	ba	10f
+	 nop
+1:
+# ifdef SHARED
+	sethi	%gdop_hix22(__mpn_submul_1_generic), %o1
+	xor	%o1, %gdop_lox10(__mpn_submul_1_generic), %o1
+# else
+	set	__mpn_submul_1_vis3, %o1
+# endif
+10:
+# ifdef SHARED
+	add	%o3, %o1, %o1
+# endif
+	retl
+	 mov	%o1, %o0
+END(__mpn_submul_1)
+
+#define __mpn_submul_1 __mpn_submul_1_generic
+#include "../submul_1.S"