#14951: SpecContsr needs two runs when one should suffice -------------------------------------+------------------------------------- Reporter: nomeata | Owner: (none) Type: task | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.2 Resolution: | Keywords: SpecConstr Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #14844 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by nomeata): If I understand this correctly, then you are proposing that loopification should tell !SpecConstr to very aggressively specialize a loopified binding, independent of whether its arguments are actually scrutinzed anywhere? But isn’t that strictly less precise than my proposal, which only specializes `foo` if there is some indication that it will be beneficial? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14951#comment:13 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler