#11371: Bogus in-scope set in substitutions -------------------------------------+------------------------------------- Reporter: simonpj | Owner: niteria Type: bug | Status: new Priority: high | Milestone: 8.2.1 Component: Compiler | Version: 7.10.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #11360 | Differential Rev(s): phab:D1792, Wiki Page: | phab:D1801, phab:D1802 -------------------------------------+------------------------------------- Comment (by niteria): More than half the difference from allocations comes from `liftCoMatch` in `Unify`. In the same file there are calls to `eqType` and `typeKind`. Both of them call `piResultTys`. There are also comments like: `-- TODO (RAE): Remove this exponential behavior.`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11371#comment:40 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler