#12506: Compile time regression in GHC 8. -------------------------------------+------------------------------------- Reporter: deech | Owner: bgamari Type: bug | Status: new Priority: high | Milestone: 8.4.1 Component: Compiler | Version: 8.0.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj):
The problem persists with D4394 applied
I was not expecting that D4394 would help. The problem here is that the coercions are too big. The encouraging news is that 7.10.3 didn't have that problem, so it's an existence proof that we don't ''need'' big coercions. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12506#comment:31 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler