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96d6fd6c40
glibc/sysdeps
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Adhemerval Zanella 96d6fd6c40 powerpc: Optimized st{r,p}cpy for POWER8/PPC64 
This patch adds an optimized POWER8 strcpy using unaligned accesses.
For strings up to 16 bytes the implementation first calculate the
string size, like strlen, and issues a memcpy.  For larger strings,
source is first aligned to 16 bytes and then tested over a loop that
reads 16 bytes am combine the cmpb results for speedup.  Special case is
added for page cross reads.

It shows 30%-60% improvement over the optimized POWER7 one that uses
only aligned accesses.
2015-01-13 11:28:30 -05:00
..
aarch64 Fix libm feupdateenv namespace (bug 17748). 2015-01-07 19:01:20 +00:00
alpha Fix libm feupdateenv namespace (bug 17748). 2015-01-07 19:01:20 +00:00
arm Fix libm feupdateenv namespace (bug 17748). 2015-01-07 19:01:20 +00:00
generic Clean up allocrtsig code. 2015-01-08 15:31:15 -08:00
gnu ARM: Consolidate with generic unwinder wrapper code 2015-01-05 15:42:16 -08:00
hppa Fix libm feupdateenv namespace (bug 17748). 2015-01-07 19:01:20 +00:00
i386 Fix libm feupdateenv namespace (bug 17748). 2015-01-07 19:01:20 +00:00
ia64 Fix libm feupdateenv namespace (bug 17748). 2015-01-07 19:01:20 +00:00
ieee754 Fix ldbl-96 scalblnl underflowing results (bug 17803). 2015-01-12 23:02:14 +00:00
init_array Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
m68k Fix libm feupdateenv namespace (bug 17748). 2015-01-07 19:01:20 +00:00
mach Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
microblaze MicroBlaze: Avoid pointer to integer conversion warning 2015-01-09 14:49:27 +10:00
mips Fix libm feupdateenv namespace (bug 17748). 2015-01-07 19:01:20 +00:00
nptl Fix wake-up in sysdeps/nptl/fork.c. 2015-01-13 01:09:29 +01:00
posix Fix shm-directory.h #include. 2015-01-09 16:08:14 -08:00
powerpc powerpc: Optimized st{r,p}cpy for POWER8/PPC64 2015-01-13 11:28:30 -05:00
pthread Some #include cleanup in aio/timer code. 2015-01-08 15:38:15 -08:00
s390 Fix libm feupdateenv namespace (bug 17748). 2015-01-07 19:01:20 +00:00
sh Fix libm feupdateenv namespace (bug 17748). 2015-01-07 19:01:20 +00:00
sparc Fix libm feupdateenv namespace (bug 17748). 2015-01-07 19:01:20 +00:00
tile Fix libm feupdateenv namespace (bug 17748). 2015-01-07 19:01:20 +00:00
unix Add x86 32 bit vDSO time function support 2015-01-12 16:03:58 -02:00
wordsize-32 Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
wordsize-64 Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
x86 Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
x86_64 Fix libm feupdateenv namespace (bug 17748). 2015-01-07 19:01:20 +00:00