[GHC] #15227: Add PrelRules for par#
#15227: Add PrelRules for par# -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: (none) Type: bug | Status: new Priority: low | Milestone: 8.6.1 Component: Compiler | Version: 8.4.3 Keywords: Newcomer | 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: -------------------------------------+------------------------------------- `seq#` and `spark#` are elided when their arguments are known to be evaluated. `par#`, however, is not. Presumably this leads to sparks being created and then immediately going away. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15227> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler
#15227: Add PrelRules for par# -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: (none) Type: bug | Status: new Priority: low | Milestone: 8.6.1 Component: Compiler | Version: 8.4.3 Resolution: | Keywords: Newcomer 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 simonpj): That sounds plausible to me. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15227#comment:1> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler
#15227: Add PrelRules for par# -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: (none) Type: bug | Status: new Priority: low | Milestone: 8.6.1 Component: Compiler | Version: 8.4.3 Resolution: | Keywords: Newcomer 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 simonmar): `par#` should have been deprecated back in 7.2 when we added `spark#`. We don't use it any more. Let's just add a deprecated note to it and remove it in a future release. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15227#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler
#15227: Add PrelRules for par# -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: (none) Type: bug | Status: new Priority: low | Milestone: 8.8.1 Component: Compiler | Version: 8.4.3 Resolution: | Keywords: Newcomer 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 Ryan Scott <ryan.gl.scott@…>): In [changeset:"feb8a671a4e92922ddac108686f0eace97dd331f/ghc" feb8a67/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="feb8a671a4e92922ddac108686f0eace97dd331f" Improve generated `GHC.Prim` docs Summary: * Extended `genprimcode` to generate Haddock-compatible deprecations, as well as displaying information about which functions are LLVM-only and which functions can fail with an unchecked exception. * Ported existing deprecations to the new format, and also added a deprecation on `par#` (see Trac #15227). * Emit an error on fixity/deprecation of builtins, unless we are processing the module in which that name is defined (see Trac #15233). That means the following is no longer accepted (outside of `GHC.Types`): ``` infixr 7 : {-# DEPRECATED (:) "cons is deprecated" #-} ``` * Generate `data (->) a b` with docs and fixity in `GHC.Prim`. This means: GHC can now parse `data (->) a b` and `infixr 0 ->` (only in `GHC.Prim`) and `genprimcode` can digest `primtype (->) a b` (See Trac #4861) as well as some misc fixes along the way. Reviewers: bgamari, RyanGlScott Reviewed By: RyanGlScott Subscribers: RyanGlScott, rwbarton, mpickering, carter GHC Trac Issues: #15227, #15233, #4861 Differential Revision: https://phabricator.haskell.org/D5167 }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15227#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler
#15227: Add PrelRules for par# -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: (none) Type: bug | Status: closed Priority: low | Milestone: 8.10.1 Component: Compiler | Version: 8.4.3 Resolution: fixed | Keywords: Newcomer 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: | -------------------------------------+------------------------------------- Changes (by osa1): * status: new => closed * resolution: => fixed Comment: `par#` is now deprecated, closing. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15227#comment:6> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler
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