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  • Glasgow Haskell Compiler
  • GHCGHC
  • Issues

  • Open 1,080
  • Closed 1,424
  • All 2,504
New issue
  • Priority Created date Last updated Milestone due date Due date Popularity Label priority Manual Weight
  • Allow the ability to display all subexpressions of a specific type
    #17331 · opened Oct 09, 2019 by cheater   GHCi feature request
    • 5
    updated Aug 12, 2020
  • Warn when [] is used with NonEmpty and OverloadedLists
    #17477 · opened Nov 14, 2019 by Joseph C. Sible   Pnormal error messages feature request
    • 3
    updated Aug 12, 2020
  • Linear types syntax: multiplicity annotation on records
    #18462 · opened Jul 16, 2020 by Arnaud Spiwack   LinearTypes feature request
    • 0
    updated Aug 12, 2020
  • Let statements don't work with ApplicativeDo
    #18559 · opened Aug 10, 2020 by lennart@augustsson.net   ApplicativeDo Pnormal feature request
    • 4
    updated Aug 11, 2020
  • `elem` applied to a known string should compile to a case expression.
    #18057 · opened Apr 14, 2020 by Andreas Klebinger   feature request runtime perf
    • 1
    • 4
    updated Aug 11, 2020
  • EqualityConstraints extension?
    #10431 · opened May 18, 2015 by Adam Gundry   5   Pnormal Trac import feature request typechecker
    • 13
    updated Aug 10, 2020
  • Cross Compilers don't have GHCI
    #18546 · opened Aug 07, 2020 by Moritz Angermann   feature request
    • 0
    updated Aug 10, 2020
  • NOINLINE and INLINABLE should be legal together
    #18557 · opened Aug 10, 2020 by Simon Peyton Jones   feature request inlining specialisation
    • 2
    updated Aug 10, 2020
  • Use unused high bits for additional pointer tags on x64
    #16991 · opened Jul 26, 2019 by Andreas Klebinger   Pnormal RTS feature request pointer tagging runtime perf
    • 4
    updated Aug 10, 2020
  • Issues with the -Wempty-enumerations flag
    #18402 · opened Jun 28, 2020 by Roland Senn   Pnormal error messages feature request
    • 2
    updated Aug 09, 2020
  • GHC should keep unfoldings for recursive functions which are suitable for specialization.
    #18285 · opened Jun 02, 2020 by Andreas Klebinger   feature request runtime perf
    • 6
    updated Aug 08, 2020
  • do not consider associativity for unary minus for fixity resolution
    #4180 · opened Jul 08, 2010 by C Maeder   8.0.1   3   Plow Trac import bug feature request parser
    • 19
    updated Aug 07, 2020
  • Consider using multiple threads to scavenge *very* large mutable arrays.
    #18544 · opened Aug 06, 2020 by Andreas Klebinger   8.14.1   Pnormal RTS feature request runtime perf
    • 1
    updated Aug 06, 2020
  • Allow specialization of more functions provided by GHC/base.
    #17759 · opened Jan 28, 2020 by Andreas Klebinger   core libraries feature request specialisation
    • 11
    updated Aug 06, 2020
  • PostfixOperators doesn't work for types
    #9993 · opened Jan 16, 2015 by shachaf   5   Pnormal Trac import feature request newcomer
    • 2
    updated Aug 04, 2020
  • TExpr and TSem: A proposal that would allow STM to have fair bounded queues.
    #18476 · opened Jul 18, 2020 by TheKing01   STM feature request
    • 36
    updated Aug 03, 2020
  • Plugins should be able to write data to extensible interface fields during the pipeline
    #18503 · opened Jul 27, 2020 by Josh Meredith   feature request plugins
    • 0
    updated Jul 29, 2020
  • Idea: consider implementing a standard selector thunk with variable offset
    #17991 · opened Mar 31, 2020 by Ömer Sinan Ağacan   RTS feature request runtime perf
    • 1
    • 7
    updated Jul 27, 2020
  • Function Result Type Signatures
    #18203 · opened May 20, 2020 by John Ericson   feature request ghc proposal
    • 1
    • 0
    updated Jul 27, 2020
  • Unboxed tuples with multiplicity parametric fields
    #18490 · opened Jul 23, 2020 by Arnaud Spiwack   LinearTypes feature request runtime perf
    • 7
    updated Jul 23, 2020
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