Re: [GHC] #11565: Restore code to handle '-fmax-worker-args' flag

#11565: Restore code to handle '-fmax-worker-args' flag -------------------------------------+------------------------------------- Reporter: slyfox | Owner: Type: feature request | Status: new Priority: normal | Milestone: 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: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by Sergei Trofimovich ): In [changeset:"a48de37dcca98e7d477040b0ed298bcd1b3ab303/ghc" a48de37/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="a48de37dcca98e7d477040b0ed298bcd1b3ab303" restore -fmax-worker-args handling (Trac #11565) maxWorkerArgs handling was accidentally lost 3 years ago in a major update of demand analysis commit 0831a12ea2fc73c33652eeec1adc79fa19700578 Old regression is noticeable as: - code bloat (requires stack reshuffling) - compilation slowdown (more code to optimise/generate) - and increased heap usage (DynFlags unboxing/reboxing?) On a simple compile benchmark this change causes heap allocation drop from 70G don to 67G (ghc perf build). Signed-off-by: Sergei Trofimovich Reviewers: simonpj, ezyang, goldfire, austin, bgamari Reviewed By: simonpj, ezyang Subscribers: thomie Differential Revision: https://phabricator.haskell.org/D2503 GHC Trac Issues: #11565 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11565#comment:8 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler