#4012: Compilation results are not deterministic -------------------------------------+------------------------------------- Reporter: kili | Owner: niteria Type: bug | Status: patch Priority: high | Milestone: 7.12.1 Component: Compiler | Version: 6.12.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Other | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: Phab:D910, | Phab:D1073, Phab:D1133, Phab:D1192 -------------------------------------+------------------------------------- Comment (by Simon Marlow <marlowsd@…>): In [changeset:"10a07753ff4ac0c1285454567c926d580d0f0470/ghc" 10a0775/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="10a07753ff4ac0c1285454567c926d580d0f0470" Anchor type family instances deterministically Summary: This is very similar to D1073. It makes type family instances to be attached to a binding with a least `OccName`, therefore not depending on `Unique` ordering. Test Plan: * this makes `Language.Haskell.Exts.SrcLoc` deterministic * ./validate Reviewers: simonmar, austin, bgamari, simonpj Reviewed By: simonpj Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D1192 GHC Trac Issues: #4012 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4012#comment:116> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler