"About GC: it would be nice if there would be some kind of standard-ish implementation framework for a GC in an LLVM language." Not quite LLVM, but take a look

"About GC: it would be nice if there would be some kind of standard-ish implementation framework for a GC in an LLVM language." Not quite LLVM, but take a look at the Eclipse OMR project. OMR intends to provide a set of reuseable components like a GC, port-library and given more effort a jit to be reused into existing language runtimes or build a whole new language out of them. https://github.com/eclipse/omr https://github.com/eclipse/omr