Rustc on wasm32?

Given rustc/llvm's memory usage and wasm32's memory limit, is the expected timeline for rustc on wasm32 (say you want an in browser IDE that can compile rust code) currently set at 'never' ? (If not, are there any efforts to make this happen, perhaps via cranelift ?)

This is already possible using a couple of small patches: It takes quite a while to compile from wasm to native code though.


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