arc: Merge ARCv2 string routines in generic ARC .S files

In cde74b83f9b2 "ARC: remove special CFLAGS/LDFLAGS handling" we
got rid of CONFIG_ARC_CPU_HS which was used to select ARCv2-specific
implementation of optimized string routines. So now ARCv2-tuned
memset/memcpy/strcmp are not used, instead those for ARC700 used for
both ARC700 and ARCHS.

Without uClibc config option we may only tell which CPU type we're
targeting by built-in defines of GCC. I.e. no more conditional file
inclusion in Makefiles. That leaves us only one option - merge both
implementations in 1 file and use ifdefs.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>

1 files changed, 0 insertions, 236 deletions

diff --git a/libc/string/arc/arcv2/memcpy.S b/libc/string/arc/arcv2/memcpy.S
deleted file mode 100644
index ba29e8790..000000000
--- a/libc/string/arc/arcv2/memcpy.S
+++ /dev/null
@@ -1,236 +0,0 @@
-/*
- * Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com)
- *
- * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
- */
-
-#include <features.h>
-#include <sysdep.h>
-
-#ifdef __LITTLE_ENDIAN__
-# define SHIFT_1(RX,RY,IMM)	asl	RX, RY, IMM	; <<
-# define SHIFT_2(RX,RY,IMM)	lsr	RX, RY, IMM	; >>
-# define MERGE_1(RX,RY,IMM)	asl	RX, RY, IMM
-# define MERGE_2(RX,RY,IMM)
-# define EXTRACT_1(RX,RY,IMM)	and	RX, RY, 0xFFFF
-# define EXTRACT_2(RX,RY,IMM)	lsr	RX, RY, IMM
-#else
-# define SHIFT_1(RX,RY,IMM)	lsr	RX, RY, IMM	; >>
-# define SHIFT_2(RX,RY,IMM)	asl	RX, RY, IMM	; <<
-# define MERGE_1(RX,RY,IMM)	asl	RX, RY, IMM	; <<
-# define MERGE_2(RX,RY,IMM)	asl	RX, RY, IMM	; <<
-# define EXTRACT_1(RX,RY,IMM)	lsr	RX, RY, IMM
-# define EXTRACT_2(RX,RY,IMM)	lsr	RX, RY, 0x08
-#endif
-
-#if defined(__LL64__) || defined(__ARC_LL64__)
-# define PREFETCH_READ(RX)	prefetch [RX, 56]
-# define PREFETCH_WRITE(RX)	prefetchw [RX, 64]
-# define LOADX(DST,RX)		ldd.ab	DST, [RX, 8]
-# define STOREX(SRC,RX)		std.ab	SRC, [RX, 8]
-# define ZOLSHFT		5
-# define ZOLAND			0x1F
-#else
-# define PREFETCH_READ(RX)	prefetch [RX, 28]
-# define PREFETCH_WRITE(RX)	prefetchw [RX, 32]
-# define LOADX(DST,RX)		ld.ab	DST, [RX, 4]
-# define STOREX(SRC,RX)		st.ab	SRC, [RX, 4]
-# define ZOLSHFT		4
-# define ZOLAND			0xF
-#endif
-
-ENTRY(memcpy)
-	prefetch  [r1]		; Prefetch the read location
-	prefetchw [r0]		; Prefetch the write location
-	mov.f	0, r2
-;;; if size is zero
-	jz.d	[blink]
-	mov	r3, r0		; don't clobber ret val
-
-;;; if size <= 8
-	cmp	r2, 8
-	bls.d	@.Lsmallchunk
-	mov.f	lp_count, r2
-
-	and.f	r4, r0, 0x03
-	rsub	lp_count, r4, 4
-	lpnz	@.Laligndestination
-	;; LOOP BEGIN
-	ldb.ab	r5, [r1,1]
-	sub	r2, r2, 1
-	stb.ab	r5, [r3,1]
-.Laligndestination:
-
-;;; Check the alignment of the source
-	and.f	r4, r1, 0x03
-	bnz.d	@.Lsourceunaligned
-
-;;; CASE 0: Both source and destination are 32bit aligned
-;;; Convert len to Dwords, unfold x4
-	lsr.f	lp_count, r2, ZOLSHFT
-	lpnz	@.Lcopy32_64bytes
-	;; LOOP START
-	LOADX (r6, r1)
-	PREFETCH_READ (r1)
-	PREFETCH_WRITE (r3)
-	LOADX (r8, r1)
-	LOADX (r10, r1)
-	LOADX (r4, r1)
-	STOREX (r6, r3)
-	STOREX (r8, r3)
-	STOREX (r10, r3)
-	STOREX (r4, r3)
-.Lcopy32_64bytes:
-
-	and.f	lp_count, r2, ZOLAND ;Last remaining 31 bytes
-.Lsmallchunk:
-	lpnz	@.Lcopyremainingbytes
-	;; LOOP START
-	ldb.ab	r5, [r1,1]
-	stb.ab	r5, [r3,1]
-.Lcopyremainingbytes:
-
-	j	[blink]
-;;; END CASE 0
-
-.Lsourceunaligned:
-	cmp	r4, 2
-	beq.d	@.LunalignedOffby2
-	sub	r2, r2, 1
-
-	bhi.d	@.LunalignedOffby3
-	ldb.ab	r5, [r1, 1]
-
-;;; CASE 1: The source is unaligned, off by 1
-	;; Hence I need to read 1 byte for a 16bit alignment
-	;; and 2bytes to reach 32bit alignment
-	ldh.ab	r6, [r1, 2]
-	sub	r2, r2, 2
-	;; Convert to words, unfold x2
-	lsr.f	lp_count, r2, 3
-	MERGE_1 (r6, r6, 8)
-	MERGE_2 (r5, r5, 24)
-	or	r5, r5, r6
-
-	;; Both src and dst are aligned
-	lpnz	@.Lcopy8bytes_1
-	;; LOOP START
-	ld.ab	r6, [r1, 4]
-	prefetch [r1, 28]	;Prefetch the next read location
-	ld.ab	r8, [r1,4]
-	prefetchw [r3, 32]	;Prefetch the next write location
-
-	SHIFT_1	(r7, r6, 24)
-	or	r7, r7, r5
-	SHIFT_2	(r5, r6, 8)
-
-	SHIFT_1	(r9, r8, 24)
-	or	r9, r9, r5
-	SHIFT_2	(r5, r8, 8)
-
-	st.ab	r7, [r3, 4]
-	st.ab	r9, [r3, 4]
-.Lcopy8bytes_1:
-
-	;; Write back the remaining 16bits
-	EXTRACT_1 (r6, r5, 16)
-	sth.ab	r6, [r3, 2]
-	;; Write back the remaining 8bits
-	EXTRACT_2 (r5, r5, 16)
-	stb.ab	r5, [r3, 1]
-
-	and.f	lp_count, r2, 0x07 ;Last 8bytes
-	lpnz	@.Lcopybytewise_1
-	;; LOOP START
-	ldb.ab	r6, [r1,1]
-	stb.ab	r6, [r3,1]
-.Lcopybytewise_1:
-	j	[blink]
-
-.LunalignedOffby2:
-;;; CASE 2: The source is unaligned, off by 2
-	ldh.ab	r5, [r1, 2]
-	sub	r2, r2, 1
-
-	;; Both src and dst are aligned
-	;; Convert to words, unfold x2
-	lsr.f	lp_count, r2, 3
-#ifdef __BIG_ENDIAN__
-	asl.nz	r5, r5, 16
-#endif
-	lpnz	@.Lcopy8bytes_2
-	;; LOOP START
-	ld.ab	r6, [r1, 4]
-	prefetch [r1, 28]	;Prefetch the next read location
-	ld.ab	r8, [r1,4]
-	prefetchw [r3, 32]	;Prefetch the next write location
-
-	SHIFT_1	(r7, r6, 16)
-	or	r7, r7, r5
-	SHIFT_2	(r5, r6, 16)
-
-	SHIFT_1	(r9, r8, 16)
-	or	r9, r9, r5
-	SHIFT_2	(r5, r8, 16)
-
-	st.ab	r7, [r3, 4]
-	st.ab	r9, [r3, 4]
-.Lcopy8bytes_2:
-
-#ifdef __BIG_ENDIAN__
-	lsr.nz	r5, r5, 16
-#endif
-	sth.ab	r5, [r3, 2]
-
-	and.f	lp_count, r2, 0x07 ;Last 8bytes
-	lpnz	@.Lcopybytewise_2
-	;; LOOP START
-	ldb.ab	r6, [r1,1]
-	stb.ab	r6, [r3,1]
-.Lcopybytewise_2:
-	j	[blink]
-
-.LunalignedOffby3:
-;;; CASE 3: The source is unaligned, off by 3
-;;; Hence, I need to read 1byte for achieve the 32bit alignment
-
-	;; Both src and dst are aligned
-	;; Convert to words, unfold x2
-	lsr.f	lp_count, r2, 3
-#ifdef __BIG_ENDIAN__
-	asl.ne	r5, r5, 24
-#endif
-	lpnz	@.Lcopy8bytes_3
-	;; LOOP START
-	ld.ab	r6, [r1, 4]
-	prefetch [r1, 28]	;Prefetch the next read location
-	ld.ab	r8, [r1,4]
-	prefetchw [r3, 32]	;Prefetch the next write location
-
-	SHIFT_1	(r7, r6, 8)
-	or	r7, r7, r5
-	SHIFT_2	(r5, r6, 24)
-
-	SHIFT_1	(r9, r8, 8)
-	or	r9, r9, r5
-	SHIFT_2	(r5, r8, 24)
-
-	st.ab	r7, [r3, 4]
-	st.ab	r9, [r3, 4]
-.Lcopy8bytes_3:
-
-#ifdef __BIG_ENDIAN__
-	lsr.nz	r5, r5, 24
-#endif
-	stb.ab	r5, [r3, 1]
-
-	and.f	lp_count, r2, 0x07 ;Last 8bytes
-	lpnz	@.Lcopybytewise_3
-	;; LOOP START
-	ldb.ab	r6, [r1,1]
-	stb.ab	r6, [r3,1]
-.Lcopybytewise_3:
-	j	[blink]
-
-END(memcpy)
-libc_hidden_def(memcpy)