llvm dev - Jan 2019 - A tiny little subset of LLVM runtime

Dear developers,

I'm working with a JIT subsystem, based on LLVM/clang, and the JIT-ted code
is used in a huge MSVC application.

The results so far are promising, as LLVM is a very stable, optimized
library.

However, up to now we're restricted to a minor subset of C++, since many
C++ features (like exceptions or RTTI) demand functions and classes that
belong to LLVM runtime library, that's usually not appended to the JIT-ted
code used in my application.

Since I'm the JIT-ted code is hosted in an MSVC application, that
(obviously) uses MSVC runtime, I've been considering to create a tiny
little subset of LLVM runtime that would be linked to the application, to
offer only what the JIT-ted code demands of it.

My questions are:


   1. do the creation of a minimal subset of LLVM runtime look feasible for
   you, LLVM developers and power users ?

   2. has this been tried before ?


All the best,
Hilton
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