Outperforming everything with anything: Python? Sure, why not?
There are a few tools out there that fuse Python and llvm.  What I find interesting about this is the way he did codegen by passing in mock objects that just emit llvm it in the simplest possible way and that it actually works while being incredibly succinct.That said, like all things that try to accelerate Python, it only works for a subset of the language (and in this case a very narrow one) and TBH while this whole "let's accelerate Python" movement is cool it's really quite awkward to have hidden subsets of a language that are accelerable.  I'm not sure, but I think it might  be better if there were a second accelerable language that was inlined with clear rules other than this stuff that seems like it will always be prone to inconsistency......or Julia.  I suspect there are tradeoffs there too though...  Building a language/runtime for high level experimentation with built in support for performance that rivals custom low level code is hard, the goals themselves are at odds with each other...