#11470: Support changing cross compiler target at runtime -------------------------------------+------------------------------------- Reporter: ezyang | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #11378 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by angerman): Just to add a note on LLVM. If we would have an architecture independent IR[1] backend, and would just emit bitcode (which we could do from textual or bitcode IR), we could ask LLVM to produce the relevant executables for the relevant targets. There is however the question about how much architecture dependent information is used up until the Cmm phase from which the LLVM backend takes over and how much architecture dependent information we use in the llvm backend. We'd finally have to see about the mangler as well. If we therefore got a bitcode emitting ghc, we would almost get all llvm backends for free. ---- [1]: As far as I understand, you can have architecture independent IR; which however requires careful instruction selection. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11470#comment:9 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler