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diff --git a/rts/gmp/mpn/sparc64/rshift.asm b/rts/gmp/mpn/sparc64/rshift.asm
deleted file mode 100644
index baf7920..0000000
--- a/rts/gmp/mpn/sparc64/rshift.asm
+++ /dev/null
@@ -1,94 +0,0 @@
-! SPARC v9 __gmpn_rshift --
-
-! Copyright (C) 1996, 2000 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 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 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 Lesser General Public
-! License for more details.
-
-! You should have received a copy of the GNU Lesser General Public License
-! along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
-! the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
-! MA 02111-1307, USA.
-
-
-! INPUT PARAMETERS
-! res_ptr	%o0
-! src_ptr	%o1
-! size		%o2
-! cnt		%o3
-
-include(`../config.m4')
-
-ASM_START()
-	.register	%g2,#scratch
-	.register	%g3,#scratch
-PROLOGUE(mpn_rshift)
-	ldx	[%o1],%g2	! load first limb
-	sub	%g0,%o3,%o5	! negate shift count
-	add	%o2,-1,%o2
-	and	%o2,4-1,%g4	! number of limbs in first loop
-	sllx	%g2,%o5,%g1	! compute function result
-	brz,pn	%g4,L(0)	! if multiple of 4 limbs, skip first loop
-	mov	%g1,%g5
-
-	sub	%o2,%g4,%o2	! adjust count for main loop
-
-L(loop0):
-	ldx	[%o1+8],%g3
-	add	%o0,8,%o0
-	add	%o1,8,%o1
-	add	%g4,-1,%g4
-	srlx	%g2,%o3,%o4
-	sllx	%g3,%o5,%g1
-	mov	%g3,%g2
-	or	%o4,%g1,%o4
-	brnz,pt	%g4,L(loop0)
-	 stx	%o4,[%o0-8]
-
-L(0):	brz,pn	%o2,L(end)
-	 nop
-
-L(loop1):
-	ldx	[%o1+8],%g3
-	add	%o0,32,%o0
-	add	%o2,-4,%o2
-	srlx	%g2,%o3,%o4
-	sllx	%g3,%o5,%g1
-
-	ldx	[%o1+16],%g2
-	srlx	%g3,%o3,%g4
-	or	%o4,%g1,%o4
-	stx	%o4,[%o0-32]
-	sllx	%g2,%o5,%g1
-
-	ldx	[%o1+24],%g3
-	srlx	%g2,%o3,%o4
-	or	%g4,%g1,%g4
-	stx	%g4,[%o0-24]
-	sllx	%g3,%o5,%g1
-
-	ldx	[%o1+32],%g2
-	srlx	%g3,%o3,%g4
-	or	%o4,%g1,%o4
-	stx	%o4,[%o0-16]
-	sllx	%g2,%o5,%g1
-
-	add	%o1,32,%o1
-	or	%g4,%g1,%g4
-	brnz	%o2,L(loop1)
-	 stx	%g4,[%o0-8]
-
-L(end):	srlx	%g2,%o3,%g2
-	stx	%g2,[%o0-0]
-	retl
-	mov	%g5,%o0
-EPILOGUE(mpn_rshift)