#10711: Defining mapM_ in terms of traverse_ causes substantial blow-up in ByteCodeAsm -------------------------------------+------------------------------------- Reporter: bgamari | Owner: bgamari Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: ghcirun004 Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by nomeata): Indeed, one can go from the slow code to the efficient, by just applying all three of the monad laws in the right order :-) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10711#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler