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authorSunil K Pandey <skpgkp2@gmail.com>2022-07-26 13:54:56 -0700
committerSunil K Pandey <skpgkp2@gmail.com>2022-10-25 22:39:35 -0700
commit59e501f204fa196d6571b523459ba528bbef7783 (patch)
treea28a658c0ff90fcb6295f9629275ab2d33905211 /elf
parent7a6ca82f8007ddbd43e2b8fce806ba7101ee47f5 (diff)
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x86_64: Implement evex512 version of strchrnul, strchr and wcschr
This patch implements following evex512 version of string functions.
evex512 version takes up to 30% less cycle as compared to evex,
depending on length and alignment.

- strchrnul function using 512 bit vectors.
- strchr function using 512 bit vectors.
- wcschr function using 512 bit vectors.

Code size data:

strchrnul-evex.o	599 byte
strchrnul-evex512.o	569 byte (-5%)

strchr-evex.o		639 byte
strchr-evex512.o	595 byte (-7%)

wcschr-evex.o		644 byte
wcschr-evex512.o	607 byte (-6%)

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

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