#14068: Loopification using join points -------------------------------------+------------------------------------- Reporter: nomeata | Owner: nomeata Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Resolution: | Keywords: JoinPoints Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #13966 #14067 | Differential Rev(s): Phab:D3811 #14827 | Wiki Page: | -------------------------------------+------------------------------------- Comment (by nomeata): Hi Kavon, nice to see someone else working on this. With the ICFP deadline out of the way, I want to pick this up again.
as specialization and other optimizations end up turning a binder marked as RecursiveTailCalled into a a full join point, and we end up with better code.
Can you elaborate? I noticed that the most regressions due to loopification are due to ConstSpec only targetting recursive things. Do you observe that as well? So the plan would be to experiment with a specializer that works also for non-recursive functions. Do you want to try that out? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14068#comment:43 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler