#15174: got internal error when running a simple but computationally intensive loop ---------------------------------+------------------------------ Reporter: rgrover | Owner: (none) Type: bug | Status: closed Priority: normal | Milestone: 8.6.1 Component: GHCi | Version: 8.2.2 Resolution: invalid | Keywords: Operating System: Linux | Architecture: ia64 Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | ---------------------------------+------------------------------ Changes (by sighingnow): * status: new => closed * resolution: => invalid Comment: This isn't a bug. In ghci the program is compiled without fully optimization then list fusion rules doesn't fire. To fix this problem, you could pass extra optimization arguments to ghci: {{{ ghci -fobject-code -O2 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15174#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler