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  • Glasgow Haskell Compiler
  • GHCGHC
  • Issues

  • Open 19
  • Closed 4
  • All 23
New issue
  • Priority Created date Last updated Milestone due date Due date Popularity Label priority Manual Title Weight Blocking
  • Interesting CSE/Code duplication issue.
    #20681 · created Nov 14, 2021 by Andreas Klebinger   CSE Pnormal code generation runtime perf simplifier
    • 7
    updated Nov 16, 2021
  • Should we CSE simple primop applications?
    #20301 · created Aug 27, 2021 by Andreas Klebinger   CSE Pnormal Tfeature request code generation runtime perf
    • 2
    updated Sep 04, 2021
  • Missed optimization opportunity with redundant case expression.
    #20138 · created Jul 21, 2021 by benjamin   CSE Plow Ttask newcomer runtime perf simplifier
    • 1
    updated Feb 24, 2022
  • Debug.Trace.trace optimized away when throwing exceptions, starting with GHC 8.8
    #19841 · created May 14, 2021 by Andreas Abel   CSE Pnormal Tbug demand analysis exceptions incorrect runtime result simplifier
    • 11
    updated Nov 09, 2021
  • Common subexpression ellimination fails to detect common suexpression
    #18564 · created Aug 11, 2020 by Neo   CSE Pnormal code generation runtime perf
    • 1
    updated Sep 04, 2021
  • Better combining for identical case alternatives
    #18377 · created Jun 23, 2020 by Simon Peyton Jones   CSE Tfeature request runtime perf
    • 2
    updated Feb 02, 2021
  • Optimize repeated usage of instance methods.
    #17795 · created Feb 06, 2020 by Andreas Klebinger   ⊥   CSE Plow Tfeature request
    • 3
    updated Feb 18, 2020
  • combineIdenticalAlts is only partially implemented
    #14684 · created Jan 18, 2018 by Matthew Pickering   5   CSE Pnormal Tbug Trac import
    • 17
    updated Nov 14, 2021
  • Simple text fusion example results in rather duplicative code
    #14222 · created Sep 12, 2017 by Ben Gamari   5   CSE Pnormal Tbug Trac import
    • 9
    updated Dec 24, 2019
  • CSE runs before SpecConstr
    #13694 · created May 13, 2017 by Matthew Pickering   5   CSE Pnormal SpecConstr Tbug Trac import
    • 1
    updated Jul 07, 2019
  • Possible inconsistency in CSE's treatment of NOINLINE
    #13589 · created Apr 18, 2017 by Ben Gamari   5   CSE Pnormal Tbug Trac import
    • 3
    updated Jul 07, 2019
  • CSE for join points
    #13219 · created Feb 01, 2017 by lukemaurer   5   CSE Pnormal Tbug Trac import join points
    • 1
    updated Dec 08, 2021
  • Allow the user to prevent floating and CSE
    #12620 · created Sep 24, 2016 by Joachim Breitner   5   CSE Pnormal Tfeature request Trac import
    • 33
    updated Sep 27, 2021
  • Improve the interaction between CSE and the join point transformation
    #9688 · created Oct 13, 2014 by David Feuer   5   CSE Pnormal Tfeature request Trac import join points runtime perf
    • 3
    updated Jul 07, 2019
  • Opportunity to improve CSE
    #7596 · created Jan 16, 2013 by Simon Peyton Jones   8.0.1   5   CSE Pnormal Tbug Trac import
    • 9
    updated Feb 06, 2020
  • CSE should look through coercions
    #5344 · created Jul 25, 2011 by reinerp   3   CSE Plow Tfeature request Trac import runtime perf
    • 7
    updated Jul 07, 2019
  • ghc -O space leak: CSE between different CAFs
    #947 · created Oct 17, 2006 by Bertram Felgenhauer   5   CSE Pnormal Tbug Trac import
    • 11
    updated Jul 07, 2019
  • Better CSE optimisation
    #701 · created Feb 20, 2006 by Simon Marlow   5   CSE Pnormal Ttask Trac import
    • 11
    updated Aug 12, 2020
  • missed CSE opportunity
    #149 · created Jun 12, 2003 by nobody   5   CSE Pnormal Tbug Trac import broken test
    • 24
    updated Jul 07, 2019