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authorSunil K Pandey <skpgkp2@gmail.com>2022-02-27 16:39:47 -0800
committerSunil K Pandey <skpgkp2@gmail.com>2022-05-26 13:11:36 -0700
commit9c66efb86fe384f77435f7e326333fb2e4e10676 (patch)
tree0a0e01591491d2dbfc45ee1c8f3417acc436f104 /misc/preadv64.c
parent8d6c44ee7d74ceafcce7cd1d694a1f86cd61dc0a (diff)
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x86_64: Implement evex512 version of strlen, strnlen, wcslen and wcsnlen
This patch implements following evex512 version of string functions.
Perf gain for evex512 version is up to 50% as compared to evex,
depending on length and alignment.

Placeholder function, not used by any processor at the moment.

- String length function using 512 bit vectors.
- String N length using 512 bit vectors.
- Wide string length using 512 bit vectors.
- Wide string N length using 512 bit vectors.

Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
Diffstat (limited to 'misc/preadv64.c')
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