#7952: Can cost-centre annotations be included in -ddump-simpl? ---------------------------------+------------------------------------------ Reporter: nr | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Keywords: Core | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Changes (by simonpj): * cc: simonmar (added) * difficulty: => Unknown Comment: I'm not terribly up to speed with the state of cost-centre profiling. In general, the cost centre (or cost-centre stack) to which a `let` allocation is attributed is a ''dyanamic'' property; it depends on the caller of the current function. (Eg to which cost centre are the thunks allocated by `map` attributed? Answer: the caller.) So it's not clear that your question has a meaningful answer. Simon Marlow will know the current state of affairs, and embarrassingly I can't even point to a document that I am sure reflects the current state of affairs. Maybe Simon can. The whole area is in need of love and attention from someone who (a) has excellent operational intuitions, and (b) takes a strongly principled approach. Norman Ramsey comes to mind. Simon -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7952#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler