#11444: 8.0 rc1 panics in applyTypeToArgs -------------------------------------+------------------------------------- Reporter: osa1 | Owner: Type: bug | Status: closed Priority: normal | Milestone: 8.2.1 Component: Compiler | Version: 8.0.1-rc1 Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: | simplCore/should_compile/T11444 Blocked By: | Blocking: Related Tickets: #13027 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by David Feuer <David.Feuer@…>): In [changeset:"b3576ed22570364f917c620a3cd29709355e4d51/ghc" b3576ed/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="b3576ed22570364f917c620a3cd29709355e4d51" Mark reallyUnsafePtrEquality# as can_fail As described in the note, floating `reallyUnsafePtrEquality#` out can make it much less precise. Marking it `can_fail` will prevent it from floating out, which I believe is particularly important in light of 5a9a1738023aeb742e537fb4a59c4aa8fecc1f8a, and should also help prevent let/app invariant failures as seen in #11444 and #13027. Reviewers: simonpj, austin, bgamari Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D2987 GHC Trac Issues: #13027, #11444 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11444#comment:21> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler