diff options
| author | Alexey Brodkin <Alexey.Brodkin@synopsys.com> | 2017-08-18 01:25:25 +0300 |
|---|---|---|
| committer | Waldemar Brodkorb <wbx@uclibc-ng.org> | 2017-08-20 12:53:17 +0200 |
| commit | 26cc89d99cc9d783859eb9d38e067fad5d6bbb60 (patch) | |
| tree | bb2f9a637c0f492eeb66465e975aa26f6207eb3c /libc/string/arc/arcv2/strcmp.S | |
| parent | d9f7022736fd429c6c62c93441804dc87900ed6f (diff) | |
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>
Diffstat (limited to 'libc/string/arc/arcv2/strcmp.S')
| -rw-r--r-- | libc/string/arc/arcv2/strcmp.S | 83 |
1 files changed, 0 insertions, 83 deletions
diff --git a/libc/string/arc/arcv2/strcmp.S b/libc/string/arc/arcv2/strcmp.S deleted file mode 100644 index 2e0e64a0c..000000000 --- a/libc/string/arc/arcv2/strcmp.S +++ /dev/null @@ -1,83 +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> - -ENTRY(strcmp) - or r2, r0, r1 - bmsk_s r2, r2, 1 - brne r2, 0, @.Lcharloop - -;;; s1 and s2 are word aligned - ld.ab r2, [r0, 4] - - mov_s r12, 0x01010101 - ror r11, r12 - .align 4 -.LwordLoop: - ld.ab r3, [r1, 4] - ;; Detect NULL char in str1 - sub r4, r2, r12 - ld.ab r5, [r0, 4] - bic r4, r4, r2 - and r4, r4, r11 - brne.d.nt r4, 0, .LfoundNULL - ;; Check if the read locations are the same - cmp r2, r3 - beq.d .LwordLoop - mov.eq r2, r5 - - ;; A match is found, spot it out -#ifdef __LITTLE_ENDIAN__ - swape r3, r3 - mov_s r0, 1 - swape r2, r2 -#else - mov_s r0, 1 -#endif - cmp_s r2, r3 - j_s.d [blink] - bset.lo r0, r0, 31 - - .align 4 -.LfoundNULL: -#ifdef __BIG_ENDIAN__ - swape r4, r4 - swape r2, r2 - swape r3, r3 -#endif - ;; Find null byte - ffs r0, r4 - bmsk r2, r2, r0 - bmsk r3, r3, r0 - swape r2, r2 - swape r3, r3 - ;; make the return value - sub.f r0, r2, r3 - mov.hi r0, 1 - j_s.d [blink] - bset.lo r0, r0, 31 - - .align 4 -.Lcharloop: - ldb.ab r2, [r0, 1] - ldb.ab r3, [r1, 1] - nop - breq r2, 0, .Lcmpend - breq r2, r3, .Lcharloop - - .align 4 -.Lcmpend: - j_s.d [blink] - sub r0, r2, r3 -END(strcmp) -libc_hidden_def(strcmp) - -#ifndef __UCLIBC_HAS_LOCALE__ -strong_alias(strcmp,strcoll) -libc_hidden_def(strcoll) -#endif |