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author | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2018-06-29 22:45:07 +0530 |
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committer | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2018-06-29 22:45:07 +0530 |
commit | ce76a5cb8d3658cc4fc935cf774e8bb5836796dc (patch) | |
tree | fb08c460de2f3091450b5e78a64a07c03552704c /sysdeps/sparc/sysdep.h | |
parent | 7e8989d03b5b3eea4f4225445c60413d36f2d710 (diff) | |
download | glibc-ce76a5cb8d3658cc4fc935cf774e8bb5836796dc.tar.gz glibc-ce76a5cb8d3658cc4fc935cf774e8bb5836796dc.tar.xz glibc-ce76a5cb8d3658cc4fc935cf774e8bb5836796dc.zip |
aarch64,falkor: Use vector registers for memmove
Vector registers perform much better for moves compared to pairs of registers on falkor, so use them instead. This results in a time reduction of up to 50% (i.e. 2x improvement) for a lot of the smaller sizes, i.e. up to 1K in memmove-walk. Improvements for larger sizes are smaller, at about 1%-2%. * sysdeps/aarch64/multiarch/memmove_falkor.S (__memcpy_falkor): Use vector registers.
Diffstat (limited to 'sysdeps/sparc/sysdep.h')
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