#14062: Pure syntax transformation affects performance. -------------------------------------+------------------------------------- Reporter: danilo2 | Owner: (none) Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 8.0.1 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 simonpj): I can't reproduce this. I didn't use Criterion; I just ran the programs. Both produced the same code with ghc-8.0 and HEAD, and both ran equally fast. Interestingly, HEAD ran them 25% faster than 8.0. The Core looks the same, so I don't know where that improvement comes from, but I'm sure it'll make you happy. Can anyone else reproduce this? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14062#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler