#13378: ghc-stage2 broken for quick-llvm -------------------------------------+------------------------------------- Reporter: angerman | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.4.1 Component: Compiler | Version: Resolution: | Keywords: Operating System: MacOS X | Architecture: x86_64 Type of failure: Building GHC | (amd64) failed | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by rwbarton): * priority: highest => normal * status: patch => new * differential: Phab:D3290 => * milestone: 8.2.1 => 8.4.1 Comment: Commit 1686f30951292e94bf3076ce8b3eafb0bcbba91d made the mangler remove `.subsections_via_symbols` from LLVM output, implementing option 1 above. So the current status is that the LLVM backend works fine; there just isn't any way to get dead code stripped from modules built by the LLVM backend. `-split-objs` never worked with LLVM anyways, so this is not a regression. So no need to revert the other splitter-related changes. For the most part the LLVM backend is only used for end-user code, rather than for libraries. So there isn't likely to be much dead code to strip anyways. But for targets like iOS on arm/aarch64, LLVM is the only backend option; so I'm leaving this ticket open. Unfortunately the approach using `.alt_entry` did not quite work out, for reasons that are not entirely clear. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13378#comment:8 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler