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, 251 deletions

diff --git a/sysdeps/powerpc/powerpc64/power4/memset.S b/sysdeps/powerpc/powerpc64/power4/memset.S
deleted file mode 100644
index a57214e0b0..0000000000
--- a/sysdeps/powerpc/powerpc64/power4/memset.S
+++ /dev/null
@@ -1,251 +0,0 @@
-/* Optimized memset implementation for PowerPC64.
-   Copyright (C) 1997-2017 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>
-
-/* __ptr_t [r3] memset (__ptr_t s [r3], int c [r4], size_t n [r5]));
-   Returns 's'.
-
-   The memset is done in three sizes: byte (8 bits), word (32 bits),
-   cache line (256 bits). There is a special case for setting cache lines
-   to 0, to take advantage of the dcbz instruction.  */
-
-#ifndef MEMSET
-# define MEMSET memset
-#endif
-	.machine power4
-EALIGN (MEMSET, 5, 0)
-	CALL_MCOUNT 3
-
-#define rTMP	r0
-#define rRTN	r3	/* Initial value of 1st argument.  */
-#define rMEMP0	r3	/* Original value of 1st arg.  */
-#define rCHR	r4	/* Char to set in each byte.  */
-#define rLEN	r5	/* Length of region to set.  */
-#define rMEMP	r6	/* Address at which we are storing.  */
-#define rALIGN	r7	/* Number of bytes we are setting now (when aligning). */
-#define rMEMP2	r8
-
-#define rNEG64	r8	/* Constant -64 for clearing with dcbz.  */
-#define rCLS	r8	/* Cache line size obtained from static.  */
-#define rCLM	r9	/* Cache line size mask to check for cache alignment.  */
-L(_memset):
-/* Take care of case for size <= 4.  */
-	cmpldi	cr1, rLEN, 8
-	andi.	rALIGN, rMEMP0, 7
-	mr	rMEMP, rMEMP0
-	ble-	cr1, L(small)
-
-/* Align to doubleword boundary.  */
-	cmpldi	cr5, rLEN, 31
-	insrdi	rCHR, rCHR, 8, 48	/* Replicate byte to halfword.  */
-	beq+	L(aligned2)
-	mtcrf	0x01, rMEMP0
-	subfic	rALIGN, rALIGN, 8
-	cror	28,30,31		/* Detect odd word aligned.  */
-	add	rMEMP, rMEMP, rALIGN
-	sub	rLEN, rLEN, rALIGN
-	insrdi	rCHR, rCHR, 16, 32	/* Replicate halfword to word.  */
-	bt	29, L(g4)
-/* Process the even word of doubleword.  */
-	bf+	31, L(g2)
-	stb	rCHR, 0(rMEMP0)
-	bt	30, L(g4x)
-L(g2):
-	sth	rCHR, -6(rMEMP)
-L(g4x):
-	stw	rCHR, -4(rMEMP)
-	b	L(aligned)
-/* Process the odd word of doubleword.  */
-L(g4):
-	bf	28, L(g4x) /* If false, word aligned on odd word.  */
-	bf+	31, L(g0)
-	stb	rCHR, 0(rMEMP0)
-	bt	30, L(aligned)
-L(g0):
-	sth	rCHR, -2(rMEMP)
-
-/* Handle the case of size < 31.  */
-L(aligned2):
-	insrdi	rCHR, rCHR, 16, 32	/* Replicate halfword to word.  */
-L(aligned):
-	mtcrf	0x01, rLEN
-	ble	cr5, L(medium)
-/* Align to 32-byte boundary.  */
-	andi.	rALIGN, rMEMP, 0x18
-	subfic	rALIGN, rALIGN, 0x20
-	insrdi	rCHR, rCHR, 32, 0	/* Replicate word to double word. */
-	beq	L(caligned)
-	mtcrf	0x01, rALIGN
-	add	rMEMP, rMEMP, rALIGN
-	sub	rLEN, rLEN, rALIGN
-	cmplwi	cr1, rALIGN, 0x10
-	mr	rMEMP2, rMEMP
-	bf	28, L(a1)
-	stdu	rCHR, -8(rMEMP2)
-L(a1):	blt	cr1, L(a2)
-	std	rCHR, -8(rMEMP2)
-	stdu	rCHR, -16(rMEMP2)
-L(a2):
-
-/* Now aligned to a 32 byte boundary.  */
-L(caligned):
-	cmpldi	cr1, rCHR, 0
-	clrrdi.	rALIGN, rLEN, 5
-	mtcrf	0x01, rLEN
-	beq	cr1, L(zloopstart) /* Special case for clearing memory using dcbz.  */
-L(nondcbz):
-	srdi	rTMP, rALIGN, 5
-	mtctr	rTMP
-	beq	L(medium)	/* We may not actually get to do a full line.  */
-	clrldi.	rLEN, rLEN, 59
-	add	rMEMP, rMEMP, rALIGN
-	li	rNEG64, -0x40
-	bdz	L(cloopdone)
-
-L(c3):	dcbtst	rNEG64, rMEMP
-	std	rCHR, -8(rMEMP)
-	std	rCHR, -16(rMEMP)
-	std	rCHR, -24(rMEMP)
-	stdu	rCHR, -32(rMEMP)
-	bdnz	L(c3)
-L(cloopdone):
-	std	rCHR, -8(rMEMP)
-	std	rCHR, -16(rMEMP)
-	cmpldi	cr1, rLEN, 16
-	std	rCHR, -24(rMEMP)
-	stdu	rCHR, -32(rMEMP)
-	beqlr
-	add	rMEMP, rMEMP, rALIGN
-	b	L(medium_tail2)
-
-	.align 5
-/* Clear lines of memory in 128-byte chunks.  */
-L(zloopstart):
-/* If the remaining length is less the 32 bytes, don't bother getting
-	 the cache line size.  */
-	beq	L(medium)
-	li      rCLS,128  /* cache line size is 128 */
-
-/* Now we know the cache line size, and it is not 32-bytes, but
-	 we may not yet be aligned to the cache line. May have a partial
-	 line to fill, so touch it 1st.  */
-	dcbt	0,rMEMP
-L(getCacheAligned):
-	cmpldi	cr1,rLEN,32
-	andi.	rTMP,rMEMP,127
-	blt	cr1,L(handletail32)
-	beq	L(cacheAligned)
-	addi	rMEMP,rMEMP,32
-	addi	rLEN,rLEN,-32
-	std	rCHR,-32(rMEMP)
-	std	rCHR,-24(rMEMP)
-	std	rCHR,-16(rMEMP)
-	std	rCHR,-8(rMEMP)
-	b	L(getCacheAligned)
-
-/* Now we are aligned to the cache line and can use dcbz.  */
-L(cacheAligned):
-	cmpld	cr1,rLEN,rCLS
-	blt	cr1,L(handletail32)
-	dcbz	0,rMEMP
-	subf	rLEN,rCLS,rLEN
-	add	rMEMP,rMEMP,rCLS
-	b	L(cacheAligned)
-
-/* We are here because the cache line size was set and was not 32-bytes
-   and the remainder (rLEN) is less than the actual cache line size.
-   So set up the preconditions for L(nondcbz) and go there.  */
-L(handletail32):
-	clrrwi.	rALIGN, rLEN, 5
-	b		L(nondcbz)
-
-	.align 5
-L(small):
-/* Memset of 8 bytes or less.  */
-	cmpldi	cr6, rLEN, 4
-	cmpldi	cr5, rLEN, 1
-	ble	cr6,L(le4)
-	subi	rLEN, rLEN, 4
-	stb	rCHR,0(rMEMP)
-	stb	rCHR,1(rMEMP)
-	stb	rCHR,2(rMEMP)
-	stb	rCHR,3(rMEMP)
-	addi	rMEMP,rMEMP, 4
-	cmpldi	cr5, rLEN, 1
-L(le4):
-	cmpldi	cr1, rLEN, 3
-	bltlr	cr5
-	stb	rCHR, 0(rMEMP)
-	beqlr	cr5
-	stb	rCHR, 1(rMEMP)
-	bltlr	cr1
-	stb	rCHR, 2(rMEMP)
-	beqlr	cr1
-	stb	rCHR, 3(rMEMP)
-	blr
-
-/* Memset of 0-31 bytes.  */
-	.align 5
-L(medium):
-	insrdi	rCHR, rCHR, 32, 0	/* Replicate word to double word.  */
-	cmpldi	cr1, rLEN, 16
-L(medium_tail2):
-	add	rMEMP, rMEMP, rLEN
-L(medium_tail):
-	bt-	31, L(medium_31t)
-	bt-	30, L(medium_30t)
-L(medium_30f):
-	bt-	29, L(medium_29t)
-L(medium_29f):
-	bge-	cr1, L(medium_27t)
-	bflr-	28
-	std	rCHR, -8(rMEMP)
-	blr
-
-L(medium_31t):
-	stbu	rCHR, -1(rMEMP)
-	bf-	30, L(medium_30f)
-L(medium_30t):
-	sthu	rCHR, -2(rMEMP)
-	bf-	29, L(medium_29f)
-L(medium_29t):
-	stwu	rCHR, -4(rMEMP)
-	blt-	cr1, L(medium_27f)
-L(medium_27t):
-	std	rCHR, -8(rMEMP)
-	stdu	rCHR, -16(rMEMP)
-L(medium_27f):
-	bflr-	28
-L(medium_28t):
-	std	rCHR, -8(rMEMP)
-	blr
-END_GEN_TB (MEMSET,TB_TOCLESS)
-libc_hidden_builtin_def (memset)
-
-/* Copied from bzero.S to prevent the linker from inserting a stub
-   between bzero and memset.  */
-ENTRY (__bzero)
-	CALL_MCOUNT 3
-	mr	r5,r4
-	li	r4,0
-	b	L(_memset)
-END (__bzero)
-#ifndef __bzero
-weak_alias (__bzero, bzero)
-#endif