#15325: GHCi panic in getIdFromTrivialExpr with -fdefer-type-errors -------------------------------------+------------------------------------- Reporter: dramforever | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.8.1 Component: Compiler | Version: 8.4.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple crash or panic | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by Simon Peyton Jones <simonpj@…>): In [changeset:"2dbf88b3558c3b53a1207fb504232c3da67b266e/ghc" 2dbf88b3/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="2dbf88b3558c3b53a1207fb504232c3da67b266e" Fix get getIdFromTrivialExpr This bug, discovered by Trac #15325, has been lurking since commit 1c9fd3f1c5522372fcaf250c805b959e8090a62c Author: Simon Peyton Jones <simonpj@microsoft.com> Date: Thu Dec 3 12:57:54 2015 +0000 Case-of-empty-alts is trivial (Trac #11155) I'd forgotttnen to modify getIdFromTrivialExpr when I modified exprIsTrivial. Easy to fix, though. }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15325#comment:5> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler