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Optimizing the Ion compiler back end

(spidermonkey.dev)
164 points undercut | 2 comments | 16 Oct 24 17:15 UTC | HN request time: 0s | source
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kibwen ◴[17 Oct 24 00:34 UTC] No.41865280[source]▶
What is MIR in this context? On the one hand, given the mention of Cranelift, it seems like it could be referring to the Rust compiler's intermediate representation, but given the context perhaps it's referring to an independent intermediate representation that also just happens to be called MIR?
replies(1): >>41866271 #
1. throwaway17_17 ◴[17 Oct 24 03:55 UTC] No.41866271[source]▶
MIR is the compiler intermediate representation used by Ion. I know the IonMonkey docs say the acronym is Mid-level Intermediate Representation.
replies(1): >>41868123 #
2. pjmlp ◴[17 Oct 24 10:14 UTC] No.41868123[source]▶
MIR is quite overloaded, besides that and Rust, it is also the new modern IR model used by LLVM languages going forward.