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118 Commits

Author SHA1 Message Date
H.J. Lu
623aac7f84 Unroll x86-64 strlen 2010-08-26 22:09:34 -07:00
H.J. Lu
b416a90085 Missing comma in last commit. 2010-08-26 13:18:46 -07:00
Roland McGrath
8b2b771538 Clean up warnings in new x86_64/multiarch code. 2010-08-25 12:13:08 -07:00
H.J. Lu
e73015f2d6 Unroll 32bit SSE strlen and handle slow bsf 2010-08-25 10:07:37 -07:00
Ulrich Drepper
1cdfe7242f Add missing copyright year updated and pretty printing. 2010-08-24 11:42:19 -07:00
Richard Henderson
73f27d5e72 Clean up SSE variable shifts 2010-08-24 11:35:01 -07:00
Ulrich Drepper
9da4bb316f Fix two typos in x86-64 SSE4.2 strncasecmp implementation. 2010-08-19 09:20:44 -07:00
Ulrich Drepper
1feccb6caf Fix fourth parameter of SSE4.2 strcmp for x86-64. 2010-08-15 20:46:09 -07:00
Ulrich Drepper
e9f82e0d1d Add optimized strncasecmp versions for x86-64. 2010-08-14 22:04:01 -07:00
Ulrich Drepper
ca6bb004eb Fix x86-64 build without multiarch. 2010-08-14 14:56:32 -07:00
Ulrich Drepper
73507d3ae0 Add support for SSSE3 and SSE4.2 versions of strcasecmp on x86-64. 2010-07-31 21:41:09 -07:00
Ulrich Drepper
66f6765a47 Pretty printing x86-64 SSE4.3 strcmp. 2010-07-30 12:54:37 -07:00
Ulrich Drepper
fe36dd025e Fix tolower operation in strcasestr. 2010-07-30 00:09:07 -07:00
Ulrich Drepper
880113d91e Avoid compiling unneeded file in ld.so. 2010-07-27 21:12:59 -07:00
Ulrich Drepper
8e96b93aa7 Speed up x86-64 strcasestr a bit moew. 
Using the new SSE4.2 instructions is cool but not really the fastest.
Some older SSE instructions can do the trick faster.
 2010-07-24 08:34:44 -07:00
Andreas Schwab
f6a31e0eb6 Add strcasestr-nonascii to i386 build 2010-07-21 07:26:18 -07:00
Ulrich Drepper
d02dc4ba08 Fix non-ASCII case of SSE4.2 strcasstr. 2010-07-16 16:00:22 -07:00
Ulrich Drepper
cc9f2e47a0 Speed up SSE4.2 strcasestr by avoiding indirect function call. 2010-07-16 15:37:38 -07:00
H.J. Lu
6fb8cbcb58 Improve 64bit memcpy/memmove for Atom, Core 2 and Core i7 
This patch includes optimized 64bit memcpy/memmove for Atom, Core 2 and
Core i7.  It improves memcpy by up to 3X on Atom, up to 4X on Core 2 and
up to 1X on Core i7.  It also improves memmove by up to 3X on Atom, up to
4X on Core 2 and up to 2X on Core i7.
 2010-06-30 08:26:11 -07:00
H.J. Lu
3c88fe1e3a Incorrect x86 CPU family and model check. 2010-05-27 11:14:18 -07:00
H.J. Lu
df87f54923 Check DATA_CACHE_SIZE_HALF 2010-04-14 22:18:27 -07:00
H.J. Lu
dd37cd1a12 Optimie x86-64 SSE4 memcmp for unaligned data. 2010-04-14 17:53:44 -07:00
H.J. Lu
404a6e3201 x86-64 SSE4 optimized memcmp 
This is 64bit SSE4 optimized memcmp. It improves memcmp by upto 3X
on Intel Core i7.
 2010-04-14 00:12:53 -07:00
Ulrich Drepper
bbbdd77809 Update x86-64 cpu multiarch selection header. 2010-04-13 19:17:10 -07:00
Ulrich Drepper
22f4f44b67 Fix concurrent handling of __cpu_features. 2010-04-04 00:25:46 -07:00
H.J. Lu
7d9335ecd7 Don't define __strpbrk_sse42 in static library 2010-03-24 12:16:24 -07:00
H.J. Lu
5a7af22fbb Unroll the loop x86-64 SSE4.2 strlen. 2010-01-13 07:51:48 -08:00
H.J. Lu
3af48cbdfa Optimize 32bit memset/memcpy with SSE2/SSSE3. 2010-01-12 11:22:03 -08:00
H.J. Lu
2510d01ddb Define bit_SSE2 and index_SSE2. 2009-12-13 15:23:02 -08:00
H.J. Lu
51ddd2c01e Define bit_XXX and index_XXX. 
This patch defines bit_XXX and index_XXX and use them to check processor
feature in assembly code.  It can prevent typos in processor feature
check.
 2009-12-13 09:47:02 -08:00
Ulrich Drepper
823bc6da65 Fix whitespaces. 2009-10-22 22:50:00 -07:00
H.J. Lu
001659f4d5 Implement SSE4.2 optimized strchr and strrchr. 2009-10-22 22:47:12 -07:00
Roland McGrath
b0f3a2e43f Clean up unnecessary libc_hidden_builtin_def fiddling in x86 multiarch definitions. 2009-10-06 20:01:23 -07:00
Roland McGrath
9d6982d5d2 Clean up x86 multiarch HAS_FOO macros. 2009-10-06 19:59:03 -07:00
Jakub Jelinek
22bb992d51 Fix strstr/strcasestr/fma/fmaf on x86_64. 2009-09-02 19:43:04 -07:00
H.J. Lu
5a4eb7282e Remove ENABLE_SSSE3_ON_ATOM. 
It turns that SSSE3 isn't slow on Atom. The problem is bsf. This patch
removes ENABLE_SSSE3_ON_ATOM.
 2009-08-28 14:54:46 -07:00
Ulrich Drepper
8e436522e1 Move SSE4.2 functions together. 2009-08-08 09:38:32 -07:00
Ulrich Drepper
0fda545d5f Add SSSE3-optimized implementation of str{,n}cmp for x86-64. 2009-08-07 22:51:02 -07:00
Ulrich Drepper
57b378ac89 Avoid warning through fake initialization. 2009-08-07 16:19:54 -07:00
H.J. Lu
02cea47161 Add x86 32-bit SSE4.2 string functions. 
This patch adds 32bit SSE4.2 string functions.  It uses -16L instead of
0xfffffffffffffff0L, which works for both 32bit and 64bit long.  Tested
on 32bit Core i7 and Core 2.
 2009-08-04 12:13:43 -07:00
H.J. Lu
6f6f1215f6 Support multiarch for i686. 
This patch adds multiarch support when configured for i686.  I modified
some x86-64 functions to support 32bit. I will contribute 32bit SSE string
and memory functions later.
 2009-07-31 11:53:35 -07:00
Ulrich Drepper
78c4ef475d Add support for x86-64 fma instruction. 
Use it to implement fma and fmaf, if possible.
 2009-07-29 15:26:06 -07:00
Ulrich Drepper
9a1d2d4555 Prepare use if IFUNC functions outside libc.so. 
We use a callback function into libc.so to get access to the data
structure with the information and have special versions of the test
macros which automatically use this function.
 2009-07-29 15:22:28 -07:00
Ulrich Drepper
e83c1a8a72 Refine testing for xmm/ymm register use in x86-64 ld.so. 
The test now takes the callgraph into account.  Only code called
during runtime relocation is affected by the limitation.  We now
determine the affected object files as closely as possible from
the outside.  This allowed to remove some the specializations
for some of the string functions as they are only used in other
code paths.
 2009-07-27 13:40:27 -07:00
Ulrich Drepper
16d2ea4c82 Make sure no code in ld.so uses xmm/ymm registers on x86-64. 
This patch introduces a test to make sure no function modifies the
xmm/ymm registers.  With the exception of the auditing functions.

The test is probably too pessimistic.  All code linked into ld.so
is checked.  Perhaps at some point the callgraph starting from
_dl_fixup and _dl_profile_fixup is checked and we can start using
faster SSE-using functions in parts of ld.so.
 2009-07-26 16:10:00 -07:00
H.J. Lu
7956a3d27c Add SSE2 support to str{,n}cmp for x86-64. 2009-07-26 13:32:28 -07:00
H.J. Lu
4e5b5821bf Some some optimizations for x86-64 strcmp. 2009-07-25 19:15:14 -07:00
Ulrich Drepper
29e92fa5cd Optimize x86-64 SSE4.2 strcmp. 
The file contained some code which was never used.  Don't compile it
in.
 2009-07-25 12:02:47 -07:00
Ulrich Drepper
d28797e426 Perform test for Arom x86-64 in central place and handle it. 
There will be more than one function which, in multiarch mode, wants
to use SSSE3.  We should not test in each of them for Atoms with
slow SSSE3.  Instead, disable the SSSE3 bit in the startup code for
such machines.
 2009-07-23 13:15:17 -07:00
Ulrich Drepper
ae612b04cc Minor cleanups in x86-64 strstr. 2009-07-21 07:52:12 -07:00
Ulrich Drepper
a8f895ebe1 Better check for optimization in new x86-64 strstr/strcasestr. 2009-07-20 21:18:28 -07:00
H.J. Lu
2b7a8664fa SSE4.2 strstr/strcasestr for x86-64. 
This patch implements SSE4.2 strstr/strcasestr, using Knuth-Morris-Pratt
string searching algorithm.
 2009-07-20 21:06:50 -07:00
Ulrich Drepper
cea4329592 Minor cleanups in recently added files. 2009-07-03 03:23:01 -07:00
Ulrich Drepper
d6485c981b Align functions to 16-byte boundary. 
Some of the new multi-arch string functions for x86-64 were
not aligned to 16 byte boundarie,s possibly creating unnecessary
cache line misses and delays.
 2009-07-03 03:01:57 -07:00
H.J. Lu
06e51c8f3d Add SSE4.2 support for strcspn, strpbrk, and strspn on x86-64. 2009-07-03 02:48:56 -07:00
Ulrich Drepper
af263b8154 Whitespace fixes in last patch. 2009-07-02 03:43:05 -07:00
H.J. Lu
ab6a873fe0 SSSE3 strcpy/stpcpy for x86-64 
This patch adds SSSE3 strcpy/stpcpy. I got up to 4X speed up on Core 2
and Core i7.  I disabled it on Atom since SSSE3 version is slower for
shorter (<64byte) data.
 2009-07-02 03:39:03 -07:00
Ulrich Drepper
b38a2e2e64 Fix little checkin problem in last patch. 2009-06-30 04:41:38 -07:00
H.J. Lu
0181291385 Determine and store processor family and model on x86-64. 2009-06-30 04:39:09 -07:00
Ulrich Drepper
059215ae21 Clean up whitespaces in last patch. 2009-06-22 20:39:37 -07:00
H.J. Lu
772f4e6a1b Add SSE4.2 support for strcmp and strncmp on x86-64. 2009-06-22 20:38:41 -07:00
Ulrich Drepper
b77c932329 Add SSE4.2 optimized rawmemchr implementation for x86-64. 2009-06-05 16:54:50 -07:00
Ulrich Drepper
6f9eea15bf Forgot some more cleanups for the SSE4.2 strlen on x86-64. 2009-06-05 11:51:59 -07:00
Ulrich Drepper
f85a9e72e2 Add missing cleanups from SSE4.2 x86-64 strlen. 2009-06-05 11:39:45 -07:00
Ulrich Drepper
3ab2d57a4d Optimize x86-64 strlen for SSE4.2. 
The SSE4.2 implementation is used in the DSO only.  The patch also adds
some infrastructure to be used in similar code later one.
 2009-06-05 11:32:00 -07:00
Ulrich Drepper
8ea2372936 Fix up sched_cpucount in x86-64. 
Now that static executables can handle IFUNC functions don't exclude
optimization for sched_cpucount for !SHARED.
 2009-05-31 23:46:42 -07:00
Ulrich Drepper
963cb6fcb4 Simplify CPUID value handling. 
SO far Intel and AMD use exactly the same bits meaning the same
things in CPUID index 1.  Simplify the code.  Should an architecture
come along which doesn't use the same semantics then it must use a
different index value than COMMON_CPUID_INDEX_1.
 2009-05-31 17:52:05 -07:00
Ulrich Drepper
425ce2edb9 * config.h.in (USE_MULTIARCH): Define. 
* configure.in: Handle --enable-multi-arch.
	* elf/dl-runtime.c (_dl_fixup): Handle STT_GNU_IFUNC.
	(_dl_fixup_profile): Likewise.
	* elf/do-lookup.c (dl_lookup_x): Likewise.
	* sysdeps/x86_64/dl-machine.h: Handle STT_GNU_IFUNC.
	* elf/elf.h (STT_GNU_IFUNC): Define.
	* include/libc-symbols.h (libc_ifunc): Define.
	* sysdeps/x86_64/cacheinfo.c: If USE_MULTIARCH is defined, use the
	framework in init-arch.h to get CPUID values.
	* sysdeps/x86_64/multiarch/Makefile: New file.
	* sysdeps/x86_64/multiarch/init-arch.c: New file.
	* sysdeps/x86_64/multiarch/init-arch.h: New file.
	* sysdeps/x86_64/multiarch/sched_cpucount.c: New file.

	* config.make.in (experimental-malloc): Define.
	* configure.in: Handle --enable-experimental-malloc.
	* malloc/Makefile: Handle experimental-malloc flag.
	* malloc/malloc.c: Implement PER_THREAD and ATOMIC_FASTBINS features.
	* malloc/arena.c: Likewise.
	* malloc/hooks.c: Likewise.
	* malloc/malloc.h: Define M_ARENA_TEST and M_ARENA_MAX.
 2009-03-13 23:53:18 +00:00