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authorAlexey Brodkin <Alexey.Brodkin@synopsys.com>2017-08-18 01:25:25 +0300
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2017-08-20 12:53:17 +0200
commit26cc89d99cc9d783859eb9d38e067fad5d6bbb60 (patch)
treebb2f9a637c0f492eeb66465e975aa26f6207eb3c /libc/string/arc/arcv2/strcmp.S
parentd9f7022736fd429c6c62c93441804dc87900ed6f (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.S83
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