[GHC] #9502: mapAccumL does not participate in foldr/build fusion
#9502: mapAccumL does not participate in foldr/build fusion -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: libraries/base | Version: 7.8.3 Keywords: | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Unknown | Type of failure: Runtime Blocked By: | performance bug Related Tickets: | Test Case: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- This can probably be fixed in much the same way as `scanl`. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9502> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler
#9502: mapAccumL does not participate in foldr/build fusion -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: Type: bug | Status: patch Priority: normal | Milestone: Component: | Version: 7.8.3 libraries/base | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: Runtime | Related Tickets: performance bug | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by dfeuer): * status: new => patch -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9502#comment:1> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler
#9502: mapAccumL does not participate in foldr/build fusion -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: Type: bug | Status: patch Priority: normal | Milestone: Component: | Version: 7.8.3 libraries/base | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: Runtime | Related Tickets: performance bug | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by Joachim Breitner <mail@…>): In [changeset:"d41dd03fdf0ef723ca31f5a11f07a54a15d2cbc0/ghc"]: {{{ #!CommitTicketReference repository="ghc" revision="d41dd03fdf0ef723ca31f5a11f07a54a15d2cbc0" Make mapAccumL a good consumer This fixes #9502. }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9502#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler
#9502: mapAccumL does not participate in foldr/build fusion -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: | Version: 7.8.3 libraries/base | Keywords: Resolution: fixed | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: Runtime | Related Tickets: performance bug | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by nomeata): * status: patch => closed * resolution: => fixed -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9502#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler
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