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
