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openedon Jun 22, 2010
We always do one upcall_import to access the crate-cache, even though on a cache hit the upcall is not doing anything more complex than a couple indexed-load-and-compare checks and a return.
This is not necessary: we can emit those load/compare checks as a fast(er) hit path that stays in the stub, and only upcall on miss.
Deferring for now because it's still not a big cost at the moment, and there's more work to do around the stubs anyways in terms of refcounting.
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