92ce79366c
This extractor had a side-effect of invoking `put_in_regs`, which is not supposed to be invoked until the pattern-matching commits to evaluating a rule right-hand side (i.e., cannot backtrack). In this case the side-effect was mostly benign (in theory it could have caused additional values to be computed needlessly), but in general we should be careful to keep side-effects out of the left-hand side to enable further optimizations and work on islec. The implicit conversion from `Value` to `Reg` turns out to be enough to make the rules in question work, so we can simply remove the use of the extractor in this case.
This crate contains the core Cranelift code generator. It translates code from an intermediate representation into executable machine code.