#13570: CoreFVs patch makes n-body slower -------------------------------------+------------------------------------- Reporter: simonpj | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #13629 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by kavon): Well, at least the assembly code after the patch for #13629 is much more efficient! The sqrt inefficiency in #13629 was a somewhat separate observation: I expected nbody to improve a bit because of that fix, counteracting whatever weird thing is going on in this regression. I guess once the Gipeda report is up we'll see if that patch helped any of the benchmarks. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13570#comment:12 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler