#13227: Loss of full laziness in mapFB -------------------------------------+------------------------------------- Reporter: simonpj | Owner: Type: bug | Status: new Priority: normal | 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 nomeata): That reminds me of a question that I had a long time: What is the precise semantics of `ProbOneShot`? I only understand `OneShot`… I read `Note [Computing one-shot info, and ProbOneShot]` and it seems that the compiler is acting according to plan (marking this partial application as `ProbOneShot`, and then not floating the expression out). Are you saying that the plan as described in the note might be bogus, or is the implementation not doing what it should? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13227#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler