#14379: Regression - GHC 2.8.1 Consumes All Memory On Build -------------------------------------+------------------------------------- Reporter: jm4games | Owner: (none) Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 8.2.1 Resolution: | Keywords: Operating System: Linux | Architecture: x86_64 Type of failure: Compile-time | (amd64) crash or panic | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): 8.0.2 Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): This would be worth merging to 8.2. I have not added a test because the repro case is tricky. My change deliberately reduces the amount of specialisation that `SpecConstr` does; but I suppose it's possible that some other important use-case will get worse. But I think it's unlikely. Worth a check on `perf.haskell.org`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14379#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler