#14614: Compile time regression when compiling alex generated files -------------------------------------+------------------------------------- Reporter: AndreasK | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.2 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: #11380 Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- Compile time increased slightly from 7.10.3 to 8.0.2 and significantly when going to 8.2.2 {{{ compiler=ghc-7.10.3 /c/test/happy-example $ time ghc Tokens.hs -fforce-recomp -fno-code [1 of 1] Compiling Tokens ( Tokens.hs, nothing ) real 0m0.243s compiler=ghc-8.0.2 /c/test/happy-example $ time ghc Tokens.hs -fforce-recomp -fno-code [1 of 1] Compiling Tokens ( Tokens.hs, nothing ) real 0m0.286s compiler=ghc-8.2.2 $ time ghc Tokens.hs -fforce-recomp -fno-code [1 of 1] Compiling Tokens ( Tokens.hs, nothing ) real 0m0.721s }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14614 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler