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, 0 insertions, 194 deletions

diff --git a/sysdeps/alpha/strcmp.S b/sysdeps/alpha/strcmp.S
deleted file mode 100644
index ae211bb7ae..0000000000
--- a/sysdeps/alpha/strcmp.S
+++ /dev/null
@@ -1,194 +0,0 @@
-/* Copyright (C) 1996-2017 Free Software Foundation, Inc.
-   Contributed by Richard Henderson (rth@tamu.edu)
-   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/>.  */
-
-/* Bytewise compare two null-terminated strings.  */
-
-#include <sysdep.h>
-
-	.set noat
-	.set noreorder
-
-	.text
-
-ENTRY(strcmp)
-#ifdef PROF
-	ldgp	gp, 0(pv)
-	lda	AT, _mcount
-	jmp	AT, (AT), _mcount
-	.prologue 1
-#else
-	.prologue 0
-#endif
-
-	ldq_u	t0, 0(a0)	# e0    : give cache time to catch up
-	xor	a0, a1, t2	# .. e1 : are s1 and s2 co-aligned?
-	ldq_u	t1, 0(a1)	# e0    :
-	and	t2, 7, t2	# .. e1 :
-	lda	t3, -1		# e0    :
-	bne	t2, $unaligned	# .. e1 :
-
-	/* On entry to this basic block:
-	   t0 == the first destination word for masking back in
-	   t1 == the first source word.
-	   t3 == -1.  */
-
-$aligned:
-	mskqh	t3, a0, t3	# e0    :
-	nop			# .. e1 :
-	ornot	t1, t3, t1	# e0    :
-	ornot	t0, t3, t0	# .. e1 :
-	cmpbge	zero, t1, t7	# e0    : bits set iff null found
-	bne	t7, $eos	# e1 (zdb)
-
-	/* Aligned compare main loop.
-	   On entry to this basic block:
-	   t0 == an s1 word.
-	   t1 == an s2 word not containing a null.  */
-
-$a_loop:
-	xor	t0, t1, t2	# e0	:
-	bne	t2, $wordcmp	# .. e1 (zdb)
-	ldq_u	t1, 8(a1)	# e0    :
-	ldq_u	t0, 8(a0)	# .. e1 :
-	addq	a1, 8, a1	# e0    :
-	addq	a0, 8, a0	# .. e1 :
-	cmpbge	zero, t1, t7	# e0    :
-	beq	t7, $a_loop	# .. e1 (zdb)
-	br	$eos		# e1    :
-
-	/* The two strings are not co-aligned.  Align s1 and cope.  */
-
-$unaligned:
-	and	a0, 7, t4	# e0    : find s1 misalignment
-	and	a1, 7, t5	# .. e1 : find s2 misalignment
-	subq	a1, t4, a1	# e0    :
-
-	/* If s2 misalignment is larger than s2 misalignment, we need
-	   extra startup checks to avoid SEGV.  */
-
-	cmplt	t4, t5, t8	# .. e1 :
-	beq	t8, $u_head	# e1    :
-
-	mskqh	t3, t5, t3	# e0    :
-	ornot	t1, t3, t3	# e0    :
-	cmpbge	zero, t3, t7	# e1    : is there a zero?
-	beq	t7, $u_head	# e1    :
-
-	/* We've found a zero in the first partial word of s2.  Align
-	   our current s1 and s2 words and compare what we've got.  */
-
-	extql	t1, t5, t1	# e0    :
-	extql	t0, a0, t0	# e0    :
-	cmpbge	zero, t1, t7	# .. e1 : find that zero again
-	br	$eos		# e1    : and finish up
-
-	.align 3
-$u_head:
-	/* We know just enough now to be able to assemble the first
-	   full word of s2.  We can still find a zero at the end of it.
-
-	   On entry to this basic block:
-	   t0 == first word of s1
-	   t1 == first partial word of s2.  */
-
-	ldq_u	t2, 8(a1)	# e0    : load second partial s2 word
-	lda	t3, -1		# .. e1 : create leading garbage mask
-	extql	t1, a1, t1	# e0    : create first s2 word
-	mskqh	t3, a0, t3	# e0    :
-	extqh	t2, a1, t4	# e0    :
-	ornot	t0, t3, t0	# .. e1 : kill s1 garbage
-	or	t1, t4, t1	# e0    : s2 word now complete
-	cmpbge	zero, t0, t7	# .. e1 : find zero in first s1 word
-	ornot	t1, t3, t1	# e0    : kill s2 garbage
-	lda	t3, -1		# .. e1 :
-	mskql	t3, a1, t3	# e0    : mask for s2[1] bits we have seen
-	bne	t7, $eos	# .. e1 :
-	xor	t0, t1, t4	# e0    : compare aligned words
-	bne	t4, $wordcmp	# .. e1 (zdb)
-	or	t2, t3, t3	# e0    :
-	cmpbge	zero, t3, t7	# e1    :
-	bne	t7, $u_final	# e1    :
-
-	/* Unaligned copy main loop.  In order to avoid reading too much,
-	   the loop is structured to detect zeros in aligned words from s2.
-	   This has, unfortunately, effectively pulled half of a loop
-	   iteration out into the head and half into the tail, but it does
-	   prevent nastiness from accumulating in the very thing we want
-	   to run as fast as possible.
-
-	   On entry to this basic block:
-	   t2 == the unshifted low-bits from the next s2 word.  */
-
-	.align 3
-$u_loop:
-	extql	t2, a1, t3	# e0    :
-	ldq_u	t2, 16(a1)	# .. e1 : load next s2 high bits
-	ldq_u	t0, 8(a0)	# e0    : load next s1 word
-	addq	a1, 8, a1	# .. e1 :
-	addq	a0, 8, a0	# e0    :
-	nop			# .. e1 :
-	extqh	t2, a1, t1	# e0    :
-	cmpbge	zero, t0, t7	# .. e1 : find zero in current s1 word
-	or	t1, t3, t1	# e0    :
-	bne	t7, $eos	# .. e1 :
-	xor	t0, t1, t4	# e0    : compare the words
-	bne	t4, $wordcmp	# .. e1 (zdb)
-	cmpbge	zero, t2, t4	# e0    : find zero in next low bits
-	beq	t4, $u_loop	# .. e1 (zdb)
-
-	/* We've found a zero in the low bits of the last s2 word.  Get
-	   the next s1 word and align them.  */
-$u_final:
-	ldq_u	t0, 8(a0)	# e1    :
-	extql	t2, a1, t1	# .. e0 :
-	cmpbge	zero, t1, t7	# e0    :
-
-	/* We've found a zero somewhere in a word we just read.
-	   On entry to this basic block:
-	   t0 == s1 word
-	   t1 == s2 word
-	   t7 == cmpbge mask containing the zero.  */
-
-	.align 3
-$eos:
-	negq	t7, t6		# e0    : create bytemask of valid data
-	and	t6, t7, t8	# e1    :
-	subq	t8, 1, t6	# e0    :
-	or	t6, t8, t7	# e1    :
-	zapnot	t0, t7, t0	# e0    : kill the garbage
-	zapnot	t1, t7, t1	# .. e1 :
-	xor	t0, t1, v0	# e0    : and compare
-	beq	v0, $done	# .. e1 :
-
-	/* Here we have two differing co-aligned words in t0 & t1.
-	   Bytewise compare them and return (t0 > t1 ? 1 : -1).  */
-$wordcmp:
-	cmpbge	t0, t1, t2	# e0    : comparison yields bit mask of ge
-	cmpbge	t1, t0, t3	# .. e1 :
-	xor	t2, t3, t0	# e0    : bits set iff t0/t1 bytes differ
-	negq	t0, t1		# e1    : clear all but least bit
-	and	t0, t1, t0	# e0    :
-	lda	v0, -1		# .. e1 :
-	and	t0, t2, t1	# e0    : was bit set in t0 > t1?
-	cmovne	t1, 1, v0	# .. e1 (zdb)
-
-$done:
-	ret			# e1    :
-
-	END(strcmp)
-libc_hidden_builtin_def (strcmp)