#14965: GHC 8.4.1 bug: -O + separate compilation + three list fields + concatenation; core-lint fails -------------------------------------+------------------------------------- Reporter: blynn | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.4.1 Resolution: | Keywords: DWARF Operating System: Linux | Architecture: Type of failure: Incorrect result | Unknown/Multiple at runtime | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): Actually I think it may be directly related to #14779, which is fixed in 8.4.2. The DWARF bit may be the 'ticks' which are floating around. The Lint error (in corelint.dump) relates to a top level literal string with a tick wrapped around it. It is still astonishing to me that we get different output though -- how on earth does that happen? Maybe it's because that tick wrapped around the literal string is confusing the code generator too. Does this all work right in 8.4.2? How you even build GHC "with DWARF support" or otherwise? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14965#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler