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surajrmal 3 hours ago

Yes, inertia. If those projects started today, they would likely choose rust.

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pjmlp 2 hours ago | parent [-]

Why isn't rustc using Cranelift then?

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norman784 an hour ago | parent [-]

I can think a few reasons:

- Cranelift applies less optimizations in exchange for faster compilation times, because it was developed to compile WASM (wasmtime), but turns out that is good enough for Rust debug builds.

- Cranelift does not support the wide range of platforms (AFAIK just X86_64 and some ARM targets)

	▲	pjmlp 29 minutes ago \| parent [-]
		So it isn't just a matter of "they would use Rust instead". There is a whole ecosystem of contributions across the globe and the lingua franca used by those contributors.