#14816: Missed Called Arity opportunity? -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Compiler | Version: 8.2.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by nomeata): Sorry. I commented here, but my comment seems to have disappeared… probably did not send it.
`insertModifying` uses its function argument at most once, so there is no possible benefit to this partial application.
but does GHC know this (non-local) fact? What is the strictness signature of `RULES.$w$sinsertModifying`. Also, what is the Core directly after Call Arity? (`-ddump-call-arity`)? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14816#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler