2026-11-12 23:27 UTC
@ezhes_@mastodon.online hey @mikeash@mastodon.sdf.org any way we can shave a null check branch off of objc_msgSend this way
Replies (2)
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@fay59@tech.lgbt 2026-11-12 23:49
@joe@f.duriansoftware.com @ezhes_@mastodon.online @mikeash@mastodon.sdf.org doesn’t the non-faulting load only non-faults if at least the first byte is accessible?
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@mikeash@mastodon.sdf.org 2026-11-13 03:17
@joe@f.duriansoftware.com @ezhes_@mastodon.online The null check is combined with the tagged pointer check. If we could ensure all tagged pointers are also inaccessible….