Clang driver is not particularly good on Windows.
I believe using clang will buy us very little (if anything), and would,
#10074: Implement the 'Improved LLVM Backend' proposal -------------------------------------+------------------------------------- Reporter: thoughtpolice | Owner: angerman Type: task | Status: new Priority: high | Milestone: 8.4.1 Component: Compiler (LLVM) | Version: Resolution: | Keywords: llvm, codegen Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #11295, #12470 | Differential Rev(s): Phab:D530 Wiki Page: | wiki:ImprovedLLVMBackend | -------------------------------------+------------------------------------- Comment (by angerman): Replying to [comment:16 awson]: perhaps, make things even worse. What you are saying is that `clang` is worse than `opt` and `llc` on windows? I should really get myself some windows box somewhere :( -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10074#comment:17 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler