Implement pure Go LLVM IR writer about llgo HOT 3 OPEN

Is there any functionality lost by not linking in the llvm libs and having direct access to LLVM's internals? Code optimization passes, performance tuning for specific cpu generations and architectures, etc are all available via llvm-as, llc, llvm-link et al, right?

from llgo.

Code optimization passes, performance tuning for specific cpu generations and architectures, etc are all available via llvm-as, llc, llvm-link et al, right?

Right. LLVM's nicely modular like that, so llgo can just write out IR, and we can pump it through "opt" for optimisation. llvm-link understands both IR and bitcode, as does clang.

Is there any functionality lost by not linking in the llvm libs and having direct access to LLVM's internals?

The only thing I can think of is knowledge of available target triples, which gets baked into libLLVM. We can just as well do that with llgo, though, using something similar to llvm-tblgen.

from llgo.

Taking this off milestones for now. This can be done any time, as it was shown that cyclic metadata was doable with the C API after all.

from llgo.