#14970: GHC.Err.errorWithoutStackTrace produces stack trace when profiling enabled -------------------------------------+------------------------------------- Reporter: rotaerk | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: libraries/base | Version: 8.2.2 Resolution: | Keywords: Operating System: Linux | Architecture: Type of failure: Incorrect result | Unknown/Multiple at runtime | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by bgamari): Indeed I think this is expected. The point (as I understand it) of `errorWithoutStackTrace` is to avoid the (potential) runtime cost of `HasCallStack`. In the case of the CCS stack there is no additional cost to providing the stack-trace. We probably ought to document this, however. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14970#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler