Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 70 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/sparc/sparc32/sparcv9/mul_1.S b/REORG.TODO/sysdeps/sparc/sparc32/sparcv9/mul_1.S
new file mode 100644
index 0000000000..ae4fc17325
--- /dev/null
+++ b/REORG.TODO/sysdeps/sparc/sparc32/sparcv9/mul_1.S
@@ -0,0 +1,70 @@
+! SPARC v9 32-bit __mpn_mul_1 -- Multiply a limb vector with a single
+! limb and store the product in a second limb vector.
+!
+! Copyright (C) 2013-2017 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
+
+ENTRY(__mpn_mul_1)
+	srl	sz, 0, sz
+	srl	s2_limb, 0, s2_limb
+	subcc	sz, 1, sz
+	be,pn	%icc, .Lfinal_limb
+	 clr	carry
+
+.Lloop:
+	lduw	[s1_ptr + 0x00], tmp1
+	lduw	[s1_ptr + 0x04], tmp2
+	mulx	tmp1, s2_limb, tmp3
+	add	s1_ptr, 8, s1_ptr
+	mulx	tmp2, s2_limb, tmp4
+	sub	sz, 2, sz
+	add	res_ptr, 8, res_ptr
+	add	carry, tmp3, tmp3
+	stw	tmp3, [res_ptr - 0x08]
+	srlx	tmp3, 32, carry
+	add	carry, tmp4, tmp4
+	stw	tmp4, [res_ptr - 0x04]
+	brgz	sz, .Lloop
+	 srlx	tmp4, 32, carry
+
+	brlz,pt	sz, .Lfinish
+	 nop
+
+.Lfinal_limb:
+	lduw	[s1_ptr + 0x00], tmp1
+	mulx	tmp1, s2_limb, tmp3
+	add	carry, tmp3, tmp3
+	stw	tmp3, [res_ptr + 0x00]
+	srlx	tmp3, 32, carry
+
+.Lfinish:
+	retl
+	 mov	carry, %o0
+END(__mpn_mul_1)