#12506: Compile time regression in GHC 8. -------------------------------------+------------------------------------- Reporter: deech | Owner: bgamari Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 8.0.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by tdammers): It turns out that `Main.hs` produces about 2.8G of Core. This part seems to be the culprit: {{{ -- RHS size: {terms: 6,002, types: 8,003, coercions: 1,415,000, joins: 0/0} main :: IO () }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12506#comment:21 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler