it seems like for a thunk (a binding with no arguments) we generate a
#15698: SingleEntry update flag for Stg bindings is not used -------------------------------------+------------------------------------- Reporter: osa1 | Owner: (none) Type: task | Status: new Priority: lowest | Milestone: 8.6.1 Component: Compiler | Version: 8.6.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): thunk header and push an update frame regardless of the update flag I don't think so. See {{{ setupUpdate closure_info node body | not (lfUpdatable (closureLFInfo closure_info)) = body }}} That is, it's a no-op if the thunk is non-updatable (single-entry). -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15698#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler