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dc1a95c730
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146 Commits

Author SHA1 Message Date
Ondřej Bílka
dc1a95c730 Faster strrchr. 2013-09-26 19:23:01 +02:00
Ondřej Bílka
5905e7b3e2 Faster strchr implementation. 2013-09-11 17:07:38 +02:00
Ondřej Bílka
8f02859f17 Add unaligned strcmp. 2013-09-03 16:27:10 +02:00
Ondřej Bílka
382466e04e Fix typos. 2013-08-30 18:08:59 +02:00
Ondřej Bílka
0186c6e97e Fix rawmemchr regression on bulldozer. 2013-08-30 10:14:37 +02:00
Ondřej Bílka
c0c3f78afb Fix typos. 2013-08-21 19:48:48 +02:00
Liubov Dmitrieva
6308fd9a46 Skip SSE4.2 versions on Intel Silvermont 
SSE2/SSSE3 versions are faster than SSE4.2 versions on Intel Silvermont.
 2013-06-28 15:31:40 -07:00
Liubov Dmitrieva
11b8a0e1d7 Fix buffers overrun in x86_64 memcmp-ssse3.S 2013-06-26 12:31:51 -07:00
Liubov Dmitrieva
d086fc7ba0 Set fast unaligned load flag for new Intel microarchitecture 
I have small patch for new Intel Silvermont machines.

http://newsroom.intel.com/community/intel_newsroom/blog/2013/05/06/intel-launches-low-power-high-performance-silvermont-microarchitecture

I checked this on my machine and see that strcpy, ... unaligned
versions are faster than ssse3 versions.
 2013-06-14 20:46:15 +02:00
Ondrej Bilka
2d48b41c8f Faster memcpy on x64. 
We add new memcpy version that uses unaligned loads which are fast
on modern processors. This allows second improvement which is avoiding
computed jump which is relatively expensive operation.

Tests available here:
http://kam.mff.cuni.cz/~ondra/memcpy_profile_result27_04_13.tar.bz2
 2013-05-20 08:24:41 +02:00
Ondrej Bilka
37bb363f03 Faster strlen on x64. 2013-03-18 07:39:12 +01:00
Ondrej Bilka
80f844c9d8 Remove Prefer_SSE_for_memop on x64 2013-03-11 15:39:08 +01:00
Ondrej Bilka
87bd9bc4bd Revert " * sysdeps/x86_64/strlen.S: Replace with new SSE2 based implementation" 
This reverts commit b79188d717.
 2013-03-06 22:27:18 +01:00
Ondrej Bilka
b79188d717 * sysdeps/x86_64/strlen.S: Replace with new SSE2 based implementation 
which is faster on all x86_64 architectures.
	Tested on AMD, Intel Nehalem, SNB, IVB.
 2013-03-06 21:54:01 +01:00
Roland McGrath
f1d70dad53 Remove lots of inline keywords. 2013-02-07 14:44:18 -08:00
H.J. Lu
afec409af9 Change __x86_64 prefix in cache size to __x86 2013-01-05 16:00:38 -08:00
H.J. Lu
5d7dd1ca84 Add HAS_RTM 2013-01-03 09:38:20 -08:00
Joseph Myers
568035b787 Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
Pino Toscano
94558d30b1 test-multiarch: terminate printf output with newline 2012-11-22 11:34:03 +01:00
H.J. Lu
f62c8abcfb Compile x86 rtld with -mno-sse -mno-mmx 2012-11-02 18:43:27 -07:00
H.J. Lu
ac49ecaf9d Add x86-64 __libc_ifunc_impl_list 2012-10-11 16:41:12 -07:00
H.J. Lu
9a387d1f78 Use IFUNC memmove/memset in x86-64 bcopy/bzero 
Also add separate tests for bcopy and bzero.
 2012-10-11 13:58:16 -07:00
H.J. Lu
0569936773 Define HAS_FMA with bit_FMA_Usable 2012-10-02 05:05:17 -07:00
H.J. Lu
31ed415328 Don't define x86-64 __strncmp_ssse3 in libc.a 2012-09-27 07:43:03 -07:00
Roland McGrath
7312ca90dc Clean up x86_64/multiarch/strstr-c.c include order. 2012-08-15 11:38:57 -07:00
Roland McGrath
9a0a54864b Clean up x86_64/multiarch/memmove.c include order. 2012-08-15 11:26:02 -07:00
H.J. Lu
f85fa27058 Avoid DWARF definition DIE on ifunc symbols 2012-08-09 16:04:37 -07:00
Carlos O'Donell
1a0994f535 BZ#14059: Fix AVX and FMA4 detection. 
Fix AVX and FMA4 detection by following the guidelines
set out by Intel and AMD for detecting these features.
 2012-05-17 06:59:28 -07:00
H.J. Lu
70bc83b910 Load pointers into RAX_LP in strcmp-sse42.S 2012-05-15 09:59:31 -07:00
H.J. Lu
9bc0b730a6 Load cache sizes into R*_LP in memcpy-ssse3.S 2012-05-15 09:58:28 -07:00
H.J. Lu
6d2850e7f5 Load cache sizes into R*_LP in memcpy-ssse3-back.S 2012-05-15 09:56:17 -07:00
H.J. Lu
8a17f34979 Load cache size into R8_LP 2012-05-15 09:35:43 -07:00
Paul Eggert
59ba27a63a Replace FSF snail mail address with URLs. 2012-02-09 23:18:22 +00:00
Ulrich Drepper
08cf777f9e Really fix AVX tests 
There is no problem with strcmp, it doesn't use the YMM registers.
The math routines might since gcc perhaps generates such code.
Introduce bit_YMM_USBALE and use it in the math routines.
 2012-01-26 09:45:54 -05:00
Ulrich Drepper
afc5ed09cb Reset bit_AVX in __cpu_features is OS support is missing 2012-01-26 07:45:14 -05:00
Liubov Dmitrieva
15db4de19d Fix overrun in destination buffer 2011-12-23 12:02:15 -05:00
Ulrich Drepper
370a7d88f7 WP fixes 2011-12-17 14:41:05 -05:00
Ulrich Drepper
1d3e4b618a Optimized wcschr and wcscpy for x86-64 and x86-32 2011-12-17 14:39:23 -05:00
Ulrich Drepper
aff2453df7 Fix more warnings 2011-12-03 21:49:35 -05:00
Ulrich Drepper
34372fc6d3 Fix test of non-ASCII locales in x86-64 strcasecmp et.al. 2011-11-01 16:46:23 -04:00
Ulrich Drepper
52e4b9eb62 More cleanups of x86-64 strstr 2011-10-28 19:01:48 -04:00
Ulrich Drepper
fd52bc6dc4 Clean up x86-64 strcasestr 
Actually describe in the C code what is going on.
 2011-10-28 18:18:04 -04:00
Ulrich Drepper
e0016b11d6 Add AVX optimized versions for some x86-64 math functions 2011-10-25 21:34:55 -04:00
Ulrich Drepper
618280a192 Optimize x86-64 SSE4.2+ strcmp a bit more 2011-10-25 14:50:31 -04:00
Ulrich Drepper
09229f3e1b Fix WS 2011-10-23 14:57:28 -04:00
Liubov Dmitrieva
ce7dd29f28 Optimized strnlen and wcscmp for x86-64 2011-10-23 14:56:04 -04:00
Ulrich Drepper
c196fed8f0 Fix compilation problems in x86-64 init-arch 2011-10-21 20:47:20 -04:00
Ulrich Drepper
ed72b6545f Check for FMA4 support and generate appropriate fma functions 2011-10-20 22:43:15 -04:00
Ulrich Drepper
8d4f46c613 Move fma routines to right place 2011-10-20 21:55:41 -04:00
Ulrich Drepper
855d156018 Optimize x86-64 rawmemchr and add test 2011-10-19 22:22:29 -04:00