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, 208 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/powerpc/powerpc64/addmul_1.S b/REORG.TODO/sysdeps/powerpc/powerpc64/addmul_1.S
new file mode 100644
index 0000000000..b4b052141d
--- /dev/null
+++ b/REORG.TODO/sysdeps/powerpc/powerpc64/addmul_1.S
@@ -0,0 +1,208 @@
+/* PowerPC64 __mpn_addmul_1 -- Multiply a limb vector with a limb and add
+   the result to a second limb vector.
+   Copyright (C) 1999-2017 Free Software Foundation, Inc.
+   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>
+
+#ifdef USE_AS_SUBMUL
+# define FUNC        __mpn_submul_1
+# define ADDSUBC     subfe
+# define ADDSUB      subfc
+#else
+# define FUNC        __mpn_addmul_1
+# define ADDSUBC     adde
+# define ADDSUB      addc
+#endif
+
+#define RP  r3
+#define UP  r4
+#define N   r5
+#define VL  r6
+
+EALIGN(FUNC, 5, 0)
+	std	r31, -8(r1)
+	rldicl.	r0, N, 0, 62
+	std	r30, -16(r1)
+	cmpdi	VL, r0, 2
+	std	r29, -24(r1)
+	addi	N, N, 3
+	std	r28, -32(r1)
+	srdi	N, N, 2
+	std	r27, -40(r1)
+	mtctr	N
+	beq	cr0, L(b00)
+	blt	cr6, L(b01)
+	beq	cr6, L(b10)
+
+L(b11):	ld	r9, 0(UP)
+	ld	r28, 0(RP)
+	mulld	r0, r9, VL
+	mulhdu	r12, r9, VL
+	ADDSUB	r0, r0, r28
+	std	r0, 0(RP)
+	addi	RP, RP, 8
+	ld	r9, 8(UP)
+	ld	r27, 16(UP)
+	addi	UP, UP, 24
+#ifdef USE_AS_SUBMUL
+	subfe	r11, r11, r11
+#endif
+	b	L(bot)
+
+	.align	4
+L(b00):	ld	r9, 0(UP)
+	ld	r27, 8(UP)
+	ld	r28, 0(RP)
+	ld	r29, 8(RP)
+	mulld	r0, r9, VL
+	mulhdu	N, r9, VL
+	mulld	r7, r27, VL
+	mulhdu	r8, r27, VL
+	addc	r7, r7, N
+	addze	r12, r8
+	ADDSUB	r0, r0, r28
+	std	r0, 0(RP)
+	ADDSUBC	r7, r7, r29
+	std	r7, 8(RP)
+	addi	RP, RP, 16
+	ld	r9, 16(UP)
+	ld	r27, 24(UP)
+	addi	UP, UP, 32
+#ifdef USE_AS_SUBMUL
+	subfe	r11, r11, r11
+#endif
+	b	L(bot)
+
+	.align	4
+L(b01):	bdnz	L(gt1)
+	ld	r9, 0(UP)
+	ld	r11, 0(RP)
+	mulld	r0, r9, VL
+	mulhdu	r8, r9, VL
+	ADDSUB	r0, r0, r11
+	std	r0, 0(RP)
+#ifdef USE_AS_SUBMUL
+	subfe	r11, r11, r11
+	addic	r11, r11, 1
+#endif
+	addze	RP, r8
+	blr
+
+L(gt1):	ld	r9, 0(UP)
+	ld	r27, 8(UP)
+	mulld	r0, r9, VL
+	mulhdu	N, r9, VL
+	mulld	r7, r27, VL
+	mulhdu	r8, r27, VL
+	ld	r9, 16(UP)
+	ld	r28, 0(RP)
+	ld	r29, 8(RP)
+	ld	r30, 16(RP)
+	mulld	r11, r9, VL
+	mulhdu	r10, r9, VL
+	addc	r7, r7, N
+	adde	r11, r11, r8
+	addze	r12, r10
+	ADDSUB	r0, r0, r28
+	std	r0, 0(RP)
+	ADDSUBC	r7, r7, r29
+	std	r7, 8(RP)
+	ADDSUBC	r11, r11, r30
+	std	r11, 16(RP)
+	addi	RP, RP, 24
+	ld	r9, 24(UP)
+	ld	r27, 32(UP)
+	addi	UP, UP, 40
+#ifdef USE_AS_SUBMUL
+	subfe	r11, r11, r11
+#endif
+	b	L(bot)
+
+L(b10):	addic	r0, r0, r0
+	li	r12, 0
+	ld	r9, 0(UP)
+	ld	r27, 8(UP)
+	bdz	L(end)
+	addi	UP, UP, 16
+
+	.align	4
+L(top):	mulld	r0, r9, VL
+	mulhdu	N, r9, VL
+	mulld	r7, r27, VL
+	mulhdu	r8, r27, VL
+	ld	r9, 0(UP)
+	ld	r28, 0(RP)
+	ld	r27, 8(UP)
+	ld	r29, 8(RP)
+	adde	r0, r0, r12
+	adde	r7, r7, N
+	mulld	N, r9, VL
+	mulhdu	r10, r9, VL
+	mulld	r11, r27, VL
+	mulhdu	r12, r27, VL
+	ld	r9, 16(UP)
+	ld	r30, 16(RP)
+	ld	r27, 24(UP)
+	ld	r31, 24(RP)
+	adde	N, N, r8
+	adde	r11, r11, r10
+	addze	r12, r12
+	ADDSUB	r0, r0, r28
+	std	r0, 0(RP)
+	ADDSUBC	r7, r7, r29
+	std	r7, 8(RP)
+	ADDSUBC	N, N, r30
+	std	N, 16(RP)
+	ADDSUBC	r11, r11, r31
+	std	r11, 24(RP)
+	addi	UP, UP, 32
+#ifdef USE_AS_SUBMUL
+	subfe	r11, r11, r11
+#endif
+	addi	RP, RP, 32
+L(bot):
+#ifdef USE_AS_SUBMUL
+	addic	r11, r11, 1
+#endif
+	bdnz	L(top)
+
+L(end):	mulld	r0, r9, VL
+	mulhdu	N, r9, VL
+	mulld	r7, r27, VL
+	mulhdu	r8, r27, VL
+	ld	r28, 0(RP)
+	ld	r29, 8(RP)
+	adde	r0, r0, r12
+	adde	r7, r7, N
+	addze	r8, r8
+	ADDSUB	r0, r0, r28
+	std	r0, 0(RP)
+	ADDSUBC	r7, r7, r29
+	std	r7, 8(RP)
+#ifdef USE_AS_SUBMUL
+	subfe	r11, r11, r11
+	addic	r11, r11, 1
+#endif
+	addze	RP, r8
+	ld	r31, -8(r1)
+	ld	r30, -16(r1)
+	ld	r29, -24(r1)
+	ld	r28, -32(r1)
+	ld	r27, -40(r1)
+	blr
+END(FUNC)