#15519: Minor code refactoring leads to drastic performance degradation -------------------------------------+------------------------------------- Reporter: danilo2 | Owner: (none) Type: bug | Status: infoneeded Priority: highest | Milestone: 8.8.1 Component: Compiler | Version: 8.4.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by danilo2): @simonpj I removed Criterion as dependency here and get the same results. Compile it and pass the resulting eecutable a number - `0`, `1` or `2` to execute `test0`, `test1` or `test2` respectively. https://github.com/wdanilo/ghc-bug-peg- optimization/blob/master/src/Main.hs -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15519#comment:8 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler