Hello, There are experience reports suggesting that LLVM is not well suited for JIT: it’s relatively slow because the main goal is AOT, not JIT, and has a large memory footprint.
For example, from <http://vmkit.llvm.org/publications/vmkit.html>, Section 4.3 (“Startup Time”): Although LLVM has the advantage of being language-independent and generating efficient code, it only performs aggressive optimizations. A Java HelloWorld program thus takes 8 seconds to run without any optimization activated. Likewise, from <http://qinsb.blogspot.com/2011/03/unladen-swallow-retrospective.html>: Unfortunately, LLVM in its current state is really designed as a static compiler optimizer and back end. LLVM code generation and optimization is good but expensive. Thanks, Ludo’.
