#10818: GHC 7.10.2 takes much longer to compile some packages -------------------------------------+------------------------------------- Reporter: kazu-yamamoto | Owner: (none) Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.10.2 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 dfeuer): Git bisect indicates that the regression in `Data.IP.Addr` occurred in b9e49d3e9580e13d89efd1f779cb76f610e0d6e0 "Add -fspecialise-aggressively". Compiler allocation with `-O` increased from 1.53GB to 2.25GB and compilation time increased from 1.8s to 2.6s. Is this to be expected? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10818#comment:17 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler