diff options
| author | Alan Modra <amodra@gmail.com> | 2013-08-17 18:47:22 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2013-10-04 10:41:24 +0930 |
| commit | 759cfef3ac4c07dba1ece0bbc1207e099348816d (patch) | |
| tree | a0e8cadce4426afb90d39b330dd50688b8975484 /ChangeLog | |
| parent | fe6e95d7171eba5f3e07848f081676fae4e86322 (diff) | |
| download | glibc-759cfef3ac4c07dba1ece0bbc1207e099348816d.zip glibc-759cfef3ac4c07dba1ece0bbc1207e099348816d.tar.gz glibc-759cfef3ac4c07dba1ece0bbc1207e099348816d.tar.bz2 | |
PowerPC LE memcpy
http://sourceware.org/ml/libc-alpha/2013-08/msg00103.html
LIttle-endian support for memcpy. I spent some time cleaning up the
64-bit power7 memcpy, in order to avoid the extra alignment traps
power7 takes for little-endian. It probably would have been better
to copy the linux kernel version of memcpy.
* sysdeps/powerpc/powerpc32/power4/memcpy.S: Add little endian support.
* sysdeps/powerpc/powerpc32/power6/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc32/power7/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc32/power7/mempcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power4/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power6/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/memcpy.S: Likewise.
* sysdeps/powerpc/powerpc64/power7/mempcpy.S: Likewise. Make better
use of regs. Use power7 mtocrf. Tidy function tails.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 13 |
1 files changed, 13 insertions, 0 deletions
@@ -1,5 +1,18 @@ 2013-10-04 Alan Modra <amodra@gmail.com> + * sysdeps/powerpc/powerpc32/power4/memcpy.S: Add little endian support. + * sysdeps/powerpc/powerpc32/power6/memcpy.S: Likewise. + * sysdeps/powerpc/powerpc32/power7/memcpy.S: Likewise. + * sysdeps/powerpc/powerpc32/power7/mempcpy.S: Likewise. + * sysdeps/powerpc/powerpc64/memcpy.S: Likewise. + * sysdeps/powerpc/powerpc64/power4/memcpy.S: Likewise. + * sysdeps/powerpc/powerpc64/power6/memcpy.S: Likewise. + * sysdeps/powerpc/powerpc64/power7/memcpy.S: Likewise. + * sysdeps/powerpc/powerpc64/power7/mempcpy.S: Likewise. Make better + use of regs. Use power7 mtocrf. Tidy function tails. + +2013-10-04 Alan Modra <amodra@gmail.com> + * sysdeps/powerpc/powerpc64/power7/memcmp.S: Add little-endian support. Formatting. Consistently use rXXX register defines or rN defines. Use early exit labels that avoid restoring unused non-volatile regs. |