39 点作者 cyberhost大约 2 年前

3 条评论

<a href="https://news.ycombinator.com/item?id=35926241" rel="nofollow">https://news.ycombinator.com/item?id=35926241</a> <a href="https://news.ycombinator.com/item?id=35782790" rel="nofollow">https://news.ycombinator.com/item?id=35782790</a> <a href="https://news.ycombinator.com/item?id=35771245" rel="nofollow">https://news.ycombinator.com/item?id=35771245</a>

userbinator将近 2 年前

I'm doubtful that using anything other than REP MOVS for copying was ever slow enough to require making a decision on. Perhaps for extremely tiny copies, but I do wonder if the original decision was based on skewed microbenchmarking.

评论 #35956533 未加载

评论 #35956475 未加载

评论 #35956525 未加载

hsjqllzlfkf将近 2 年前

Can anyone comment on what this means?

评论 #35956481 未加载

评论 #35956079 未加载

Merge branch 'x86-rep-insns': x86 user copy clarifications

3 条评论

Merge branch 'x86-rep-insns': x86 user copy clarifications

3 条评论