Re: [PATCH 0/2] x86: Optimize memchr() for x86-64

On 5/28/2022 1:12 AM, Yu-Jen Chang wrote: *** BLURB HERE *** These patch series add an optimized "memchr()" for x86-64 and USER-MODE LINUX (UML). There exists an assemebly implementation for x86-32. However, for x86-64, there isn't any optimized version. We implement word-wise comparison so

[PATCH 0/2] x86: Optimize memchr() for x86-64

*** BLURB HERE *** These patch series add an optimized "memchr()" for x86-64 and USER-MODE LINUX (UML). There exists an assemebly implementation for x86-32. However, for x86-64, there isn't any optimized version. We implement word-wise comparison so that 8 characters can be compared at the sam