#4012: Compilation results are not deterministic -------------------------------------+------------------------------------- Reporter: kili | Owner: niteria Type: bug | Status: new Priority: high | Milestone: 8.2.1 Component: Compiler | Version: 6.12.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Other | Test Case: Blocked By: 11362 | Blocking: 12262 Related Tickets: #10424 | Differential Rev(s): Phab:D910, | Phab:D1073, Phab:D1133, Phab:D1192, | Phab:D1268, Phab:D1360, Phab:D1373, Wiki Page: | Phab:D1396, Phab:D1457, Phab:D1468, DeterministicBuilds | Phab:D1487, Phab:D1504, Phab:D1508 -------------------------------------+------------------------------------- Comment (by Bartosz Nitka <niteria@…>): In [changeset:"1b058d4a0f4b12bf15d186409cfff8a2b93fd3a9/ghc" 1b058d4/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="1b058d4a0f4b12bf15d186409cfff8a2b93fd3a9" Remove varEnvElts varEnvElts can introduce unnecessary nondeterminism and we can finally remove it, so that no one will use it by accident. If someone wants to use varEnvElts they should either use DVarEnv or use nonDetEltsUFM and document why it doesn't introduce nondeterminism. GHC Trac: #4012 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4012#comment:225> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler