> It achieved that by having an IR that lets us be a lot more precise about thin... | Hacker News

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		gsnedders on April 21, 2020 \| parent \| context \| favorite \| on: A possible new back end for Rust > It achieved that by having an IR that lets us be a lot more precise about things that were important to our front end compiler. Do you have any examples off-hand? I presume caring about patchpoints and OSR is as fair gain to start with?

pizlonator on April 21, 2020 [–]

And aliasing. The aliasing story in B3 is so wonderful. That was one of the biggest wins - being able to say for example that something can side-exit (and can do weird shit after exit) but doesn't write any state if it falls through.

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