Liubov Dmitrieva
4b43400f6a
optimize the following memcpy: sysdeps/i386/i686/multiarch/memcpy-ssse3.S
...
I've improved the following implementation of memcpy:
"sysdeps/i386/i686/multiarch/memcpy-ssse3.S".
The patch includes some minor style fixes, but the important part is
just using prefetch loops for the case:
DATA_CACHE_SIZE_HALF <= len < SHARED_CACHE_SIZE_HALF and
src and dst pointers have unequal 16 byte alignments.
This gives from 6% - 50% performance boost on the atom machine, about
24,73% in geometric mean.
2012-03-30 16:45:27 -04:00
Joseph Myers
0bab47b6b2
Fix x86 strcasecmp_l (bug 13786).
2012-02-29 22:37:38 +00:00
Paul Eggert
59ba27a63a
Replace FSF snail mail address with URLs.
2012-02-09 23:18:22 +00:00
Joseph Myers
9a1d92541f
Consistently use macros for x86 PIC thunks.
2012-02-03 23:22:53 +00:00
Liubov Dmitrieva
c044cf14b0
Fix wrong copying processing for last bytes in x86-32 wcscpy
...
Wrong copy algorithm for last bytes, not thread safety.
In some particular cases it uses the destination
memory beyond the string end for
16-byte load, puts changes into that part that is relevant
to destination string and writes whole 16-byte chunk into memory.
I have a test case where the memory beyond the string end contains
malloc/free data, that appear corrupted in case free() updates
it in between the 16-byte read and 16-byte write.
2011-12-23 08:50:39 -05:00
Liubov Dmitrieva
2bd779ae3f
Fix overrun in strcpy destination buffer in x86-32/SSSE3 version
2011-12-22 14:22:00 -05:00
Ulrich Drepper
1d3e4b618a
Optimized wcschr and wcscpy for x86-64 and x86-32
2011-12-17 14:39:23 -05:00
Andreas Schwab
5583a0862c
Fix SSSE3/SSE4.2 strcasecmp[_l]/strncasecmp[_l] for non-PIC and -mno-tls-direct-seg-refs
2011-11-16 11:48:10 +01:00
Ulrich Drepper
6abf346582
Add SSE4.2 support for strcasecmp and strncasecmp on x86-32
2011-11-14 18:24:35 -05:00
Ulrich Drepper
76e3966e9e
SSSE3 optimized strcasecmp and strncasecmp for x86-32
2011-11-13 09:50:13 -05:00
Ulrich Drepper
e7f4b08ee9
Fix warnings in fallback C code of x86-32 wide memory functions
2011-11-12 00:50:26 -05:00
Ulrich Drepper
fe72eebd67
Remove unnecessary code from x86-32 SSSE3 strncmp
2011-11-08 07:50:20 -05:00
Andreas Schwab
0c92d8a87a
Fix some warning nits
2011-10-28 12:02:08 +02:00
Andreas Schwab
b43433460b
Move wide char related routines to wcsmbs subdir
2011-10-28 12:01:29 +02:00
Ulrich Drepper
2fa2ae85ca
Fix strnlen change
2011-10-23 16:30:40 -04:00
Liubov Dmitrieva
fc2ee42abe
Add optimized wcslen and strnlen for x86-32
2011-10-23 15:17:23 -04:00
Michael Zolotukhin
979c70a3b1
Improve x86-32 SSSE3 memcpy
2011-10-23 14:28:26 -04:00
Ulrich Drepper
f17424ed53
Fix WS
2011-10-23 13:35:24 -04:00
Liubov Dmitrieva
95584d3b33
Fix signedness in wcscmp comparison
2011-10-23 13:34:15 -04:00
Liubov Dmitrieva
be13f7bff6
Optimized memcmp and wmemcmp for x86-64 and x86-32
2011-10-15 11:10:08 -04:00
Ulrich Drepper
f9e123204e
Fix whitespaces
2011-10-12 11:42:57 -04:00
Liubov Dmitrieva
951fbcec70
Optimized memchr, memrchr, rawmemchr for x86-32
2011-10-12 11:42:04 -04:00
Liubov Dmitrieva
48882a1abe
Fix up x86-32 section names for Atom code
2011-09-07 22:28:44 -04:00
Ulrich Drepper
ceaa0c5dc3
Move Atom-optimized code out of the way and together
2011-09-06 21:53:03 -04:00
Ulrich Drepper
b0fc1ff04e
Fix whitespaces
2011-09-05 17:12:27 -04:00
Liubov Dmitrieva
693fb94884
Optimized strchr and strrchr with SSE2 on x86-32
2011-09-05 17:11:11 -04:00
Ulrich Drepper
5fc11f0d64
Fix whitespaces
2011-09-05 13:54:51 -04:00
Ulrich Drepper
1b48c53782
Add x86-32 optimized wcscmp
2011-09-05 13:53:27 -04:00
Andreas Schwab
2cae499541
Fix spurious nop at start of __strspn_ia32
2011-08-23 15:53:51 +02:00
Ulrich Drepper
b969a69b2e
Fix whitespaces
2011-08-04 15:38:35 -04:00
Liubov Dmitrieva
5fa16e9b01
Improve x86-32 strcat functions with SSE2/SSSE3
2011-08-04 15:33:38 -04:00
Roland McGrath
661607b3dd
Quash a warning in strstr-c.c built for static.
2011-07-14 20:47:54 -07:00
H.J. Lu
acb0d739c5
Fix unwind info in 32bit SSE2/SSSE3 strncpy
2011-06-25 01:32:27 -04:00
H.J. Lu
0b1cbaaef5
Optimized st{r,p}{,n}cpy for SSE2/SSSE3 on x86-32
2011-06-24 14:15:32 -04:00
Mike Frysinger
4c559bcdf3
Fix static linking with checking x86/x86-64 memcpy.
2011-04-17 22:20:47 -04:00
Ulrich Drepper
283007197c
Undo accidental checkin.
2010-12-14 13:09:28 -05:00
Jakub Jelinek
42acbb92c8
Fix -D_FORTIFY_SOURCE memmove and bcop
2010-12-09 10:38:18 -05:00
H.J. Lu
3a4a2499ec
Remove dead code from x86-32 SSSE3 strncmp.
2010-12-01 22:18:31 -05:00
Jakub Jelinek
5e908464b9
Implement accurate fma.
2010-10-13 22:27:03 -04:00
Jakub Jelinek
9ff8d36f27
Correct implementation of fmaf.
2010-10-11 09:27:05 -04:00
Roland McGrath
6d34eb5b45
Add missing i686/multiarch/Makefile bit for shared x86_64 code.
2010-08-27 17:11:38 -07:00
Ulrich Drepper
c96d23fcaa
Fixup x86 after x86-64 varshift change.
2010-08-27 12:10:11 -07:00
H.J. Lu
e73015f2d6
Unroll 32bit SSE strlen and handle slow bsf
2010-08-25 10:07:37 -07:00
Richard Henderson
73f27d5e72
Clean up SSE variable shifts
2010-08-24 11:35:01 -07:00
Andreas Schwab
bdaa77bc20
Fix ifunc thunk for strspn on x86 in static libc
2010-08-19 07:42:16 -07:00
Andreas Schwab
b8934257ec
Add missing file from last commit.
2010-07-21 08:44:35 -07:00
Andreas Schwab
f6a31e0eb6
Add strcasestr-nonascii to i386 build
2010-07-21 07:26:18 -07:00
H.J. Lu
6cc2b8a6df
Fix bugs in x86-32 strcmp-sse4.S and strcmp-ssse3.S
2010-04-15 07:49:30 -07:00
H.J. Lu
a11ec63713
Add x86-32 FMA support
2010-04-14 22:27:59 -07:00
H.J. Lu
b170ff0f8f
Fix sysdeps/i386/i686/multiarch/memcmp-ssse3.S
2010-03-18 11:40:46 -07:00
