#7428: GHC compile times are seriously non-linear in program size -------------------------------------+------------------------------------- Reporter: nudded | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.12.1 Component: Compiler | Version: 7.4.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by thoughtpolice): Here's a smaller version (that actually completes in a reasonable amount of time), along with a profile. Something is definitely quadratic or something around `CorePrep`/`TidyCore`; when run with `-v3`, I estimate `CorePrep` alone takes about 20 seconds. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7428#comment:17 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler