#8763: forM_ [1..N] does not get fused (allocates 50% more) -------------------------------------+------------------------------------- Reporter: nh2 | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.8.1 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: #7206 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): What, exactly is "the problem"? You say in comment:69 that something is not a join point, and LLF helps a bit but not enough. Can you give a from-scratch explanation of what the problem is, perhaps assuming that LLF is available if necessary? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8763#comment:73 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler