Hi all, I was wondering what’s the current status of the “Improved LLVM backend” project ( https://ghc.haskell.org/trac/ghc/wiki/ImprovedLLVMBackend ). The page mentions a few main problems, but some seem to be already fixed: 1) Using/supporting only one version of LLVM. This has been done AFAIK. 2) Prebuilt binaries to be shipped together with GHC. I can't find anything about this. Is there a ticket? Has there been any progress on this? 3) Adding support for split-objs I found a ticket about it: https://ghc.haskell.org/trac/ghc/ticket/8300 which was closed as WONTFIX in favor of split-sections. So I guess this can also be considered as done. 4) Figuring out what LLVM optimizations are useful. Again, I can seem to find anything here. Has anyone looked at this? I only found an issue about this: https://ghc.haskell.org/trac/ghc/ticket/11295 The page also mentions that the generated IR could be improved in many cases, but it doesn't link to any tickets or discussions. Is there something I could read to better understand what are the main problems? The only thing I can recall is that proc point splitting is likely to cause issues for LLVM's ability to optimize the code. (but I only found a couple of email threads about this but couldn't find any follow-ups) Thanks, Michal