Hmm. It's hard to remember all the issues, but this was the period where LLVM moved from their "old JIT" backend to MCJIT [1]. IIRC, 3.4 broke the old JIT but M

Hmm. It's hard to remember all the issues, but this was the period where LLVM moved from their "old JIT" backend to MCJIT [1]. IIRC, 3.4 broke the old JIT but MCJIT still wasn't developed enough for Julia to use. At some point the old JIT was removed entirely but MCJIT was still not usable (for us) and that didn't resolve itself entirely until 3.7. [1] http://llvm.org/docs/MCJITDesignAndImplementation.html http://llvm.org/docs/MCJITDesignAndImplementation.html