#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 awson): Well, perhaps I was not quite correct. I mostly had in mind things like (for example) `clang` on Windows doesn't supporting `-flto`, but using separate utilities, e.g doing `llvm-link` between `opt` and `llc` we can accomplish the thing. OTOH, we still can call `clang` twice, first instead of `opt` then instead of `llc` with `llvm-link` in-between. Still I'm very much not sure we need to bother with the beast like `clang` to only be able to get rid of literally a couple of lines of haskell code. Moreover, I'm not sure OS X -O3 example is quite relevant here. Do you mean using `-O3` with `opt` and/or `llc` driver yields different results from if we use the same `-O3` with `clang` driver on the same version of llvm/clang? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10074#comment:18 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler