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diff --git a/gcc/config/arc/lib1funcs.asm b/gcc/config/arc/lib1funcs.asm
index e0dcd363..c61f39a5 100644
--- a/gcc/config/arc/lib1funcs.asm
+++ b/gcc/config/arc/lib1funcs.asm
@@ -1,30 +1,25 @@
 ; libgcc routines for ARC cpu.
 
-/* Copyright (C) 1995, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1997,2004, 2009 Free Software Foundation, Inc.
 
 This file is free software; you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
-Free Software Foundation; either version 2, or (at your option) any
+Free Software Foundation; either version 3, or (at your option) any
 later version.
 
-In addition to the permissions in the GNU General Public License, the
-Free Software Foundation gives you unlimited permission to link the
-compiled version of this file into combinations with other programs,
-and to distribute those combinations without any restriction coming
-from the use of this file.  (The General Public License restrictions
-do apply in other respects; for example, they cover modification of
-the file, and distribution when not linked into a combine
-executable.)
-
 This file 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
 General Public License for more details.
 
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
 
 #ifdef  L_mulsi3
 	.section .text
@@ -89,8 +84,12 @@ ___umulsidi3:
 	nop
 	beq.nd .Ldone
 	and.f 0,r0,1		; if (a & 1)
-	add.nz r4,r4,r1		; r += b
-	adc.nz r3,r3,r2
+	sub.f 0,r0,0
+	nop
+	beq .Ldontadd
+	add.f r4,r4,r1		; r += b
+	adc   r3,r3,r2
+.Ldontadd:
 	lsr r0,r0		; a >>= 1
 	lsl.f r1,r1		; b <<= 1
 	b.d .Lloop