Re: [GHC] #12216: GHC 8.0.1 panics when compiling JuicyPixels-repa 0.7.1

#12216: GHC 8.0.1 panics when compiling JuicyPixels-repa 0.7.1 -------------------------------------+------------------------------------- Reporter: cgo | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Resolution: duplicate | Keywords: Operating System: MacOS X | Architecture: x86_64 Type of failure: Compile-time | (amd64) crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by Simon Peyton Jones ): In [changeset:"393928db9fc35ef8bdeb241c051224a6c4bdf749/ghc" 393928db/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="393928db9fc35ef8bdeb241c051224a6c4bdf749" Fix renamer panic This patch fixes Trac #12216 and #12127. The 'combine' function in 'imp_occ_env' in RnNames.filterImports checked for an empty field-selector list, which was (a) unnecessary and (b) wrong. I've elaborated the comments. This does NOT fix #11959 which is related but not the same (it concerns bundling of pattern synonyms). }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12216#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler