Thanks Ben, np. On Mon, Sep 12, 2016 at 11:33 AM GHC wrote:

#8763: forM_ [1..N] does not get fused (10 times slower than go function) -------------------------------------+------------------------------------- Reporter: nh2 | Owner: Type: bug | Status: new Priority: normal | Milestone: 8.2.1 Component: Compiler | Version: 7.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by bgamari):

* milestone: 8.0.2 => 8.2.1

Comment:

I'm afraid 8.0.2 is out of the question. However, 8.2.1 is a possibility. Of course, any help that you, the reader, can offer would expedite the process.

-- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8763#comment:25 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler