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authorAndrew Senkevich <andrew.senkevich@intel.com>2016-01-16 00:49:45 +0300
committerAndrew Senkevich <andrew.senkevich@intel.com>2016-01-16 00:49:45 +0300
commit72276d6e8843db6df5971b06787f0a5e39bda138 (patch)
treead7ed01db58285d38559773305d5d8b16eca39d3 /sysdeps/x86_64/rshift.S
parentb02840bacdefde318d2ad2f920e50785b9b25d69 (diff)
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Added memcpy/memmove family optimized with AVX512 for KNL hardware.
Added AVX512 implementations of memcpy, mempcpy, memmove, memcpy_chk,
mempcpy_chk, memmove_chk.
It shows average improvement more than 30% over AVX versions on KNL
hardware (performance results in the thread
<https://sourceware.org/ml/libc-alpha/2016-01/msg00258.html>).

    * sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Added new files.
    * sysdeps/x86_64/multiarch/ifunc-impl-list.c: Added new tests.
    * sysdeps/x86_64/multiarch/memcpy-avx512-no-vzeroupper.S: New file.
    * sysdeps/x86_64/multiarch/mempcpy-avx512-no-vzeroupper.S: Likewise.
    * sysdeps/x86_64/multiarch/memmove-avx512-no-vzeroupper.S: Likewise.
    * sysdeps/x86_64/multiarch/memcpy.S: Added new IFUNC branch.
    * sysdeps/x86_64/multiarch/memcpy_chk.S: Likewise.
    * sysdeps/x86_64/multiarch/memmove.c: Likewise.
    * sysdeps/x86_64/multiarch/memmove_chk.c: Likewise.
    * sysdeps/x86_64/multiarch/mempcpy.S: Likewise.
    * sysdeps/x86_64/multiarch/mempcpy_chk.S: Likewise.
Diffstat (limited to 'sysdeps/x86_64/rshift.S')
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