#12104: Type families, `TypeError`, and `-fdefer-type-errors` cause "opt_univ fell into a hole" -------------------------------------+------------------------------------- Reporter: antalsz | Owner: (none) Type: bug | Status: patch Priority: high | Milestone: Component: Compiler (Type | Version: 8.0.1 checker) | Keywords: TypeFamilies, Resolution: | CustomTypeErrors Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple crash | Test Case: Blocked By: | Blocking: Related Tickets: #13487 | Differential Rev(s): Phab:D3495 Wiki Page: | -------------------------------------+------------------------------------- Comment (by Ben Gamari <ben@…>): In [changeset:"69b9b853e3e68191cdfa8aec0e4da966298a2659/ghc" 69b9b853/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="69b9b853e3e68191cdfa8aec0e4da966298a2659" Add regression test for #12104 Commit 2f9f1f86849ebc18af409c9b3fd809c9cd464021 (#13487) fixes #12104 as well. This adds a regression test for the program reported in #12104 to keep it fixed. Test Plan: make test TEST=T12104 Reviewers: bgamari, austin Reviewed By: bgamari Subscribers: rwbarton, thomie GHC Trac Issues: #12104 Differential Revision: https://phabricator.haskell.org/D3495 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12104#comment:10> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler