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  • Glasgow Haskell Compiler
  • GHCGHC
  • Issues

  • Open 495
  • Closed 800
  • All 1,295
New issue
  • Priority Created date Last updated Milestone due date Due date Popularity Label priority Manual Weight Blocking
  • [Discussion] Integrating DataTypeable, Functor, Foldable, Traversable, Generic and Lift in the `stock` deriving strategy
    #19707 · opened Apr 15, 2021 by Hécate Moonlight   Plow Tfeature request deriving
    • 2
    • 7
    updated Apr 16, 2021
  • `Messages` can't be easily printed for debugging purposes
    #19694 · opened Apr 13, 2021 by Matthew Pickering   Plow Ttask error messages newcomer
    • 1
    • 3
    updated Apr 19, 2021
  • a larger suite of cas primitive types would be really nice
    #19681 · opened Apr 09, 2021 by Edward Kmett   Plow Tfeature request primops
    • 2
    updated Apr 16, 2021
  • runExists: a type-level version of runRW
    #19675 · opened Apr 09, 2021 by Simon Peyton Jones   Plow Tfeature request typechecker
    • 3
    updated Apr 09, 2021
  • Make hadrian refuse to test when flavour is quick (or devel2 or ...)
    #19671 · opened Apr 08, 2021 by Oleg Grenrus   Plow Tfeature request hadrian testsuite
    • 2
    updated Apr 09, 2021
  • Incompleteness of solving: D/N cannot rewrite D/R
    #19665 · opened Apr 07, 2021 by Richard Eisenberg   ⊥   Coercible Plow Tbug constraint solver
    • 0
    updated Apr 13, 2021
  • Inconsistent multiple declarations error in Template Haskell quotations
    #19664 · opened Apr 07, 2021 by Jaro Reinders   OverloadedRecordFields Plow Tbug TemplateHaskell records
    • 1
    • 8
    updated Apr 10, 2021
  • Missing interface-file declaration when splicing lifted quote
    #19662 · opened Apr 06, 2021 by Jaro Reinders   9.4.1   Plow Tbug TemplateHaskell
    • 7
    updated Apr 22, 2021
  • Potential regression when specializing the linear register allocator
    #19656 · opened Apr 06, 2021 by Andreas Klebinger   Plow compiler perf specialisation
    • 0
    updated Apr 08, 2021
  • GHC's failure to rewrite in coercions & kinds leads to spurious occurs-check failure
    #19652 · opened Apr 05, 2021 by Richard Eisenberg   Plow Tbug TypeInType constraint solver typechecker
    • 0
    updated Apr 08, 2021
  • Split up PState
    #19612 · opened Mar 28, 2021 by Sebastian Graf   Plow Tbug compiler perf parser
    • 1
    • 2
    updated Apr 03, 2021
  • When compiling test binaries hadrian doesn't use compileAndLinkHs
    #19606 · opened Mar 27, 2021 by Oleg Grenrus   Plow info needed
    • 2
    updated Apr 08, 2021
  • Type applications in patterns should also work for universal type variables
    #19577 · opened Mar 22, 2021 by Sebastian Graf   Plow Tfeature request TypeApplications
    • 10
    updated Apr 08, 2021
  • Improvement for closed type families based on equation apartness
    #19568 · opened Mar 20, 2021 by Alexis King   Plow Tfeature request TypeFamilies injective type families
    • 5
    updated Apr 08, 2021
  • Cast worker/wrapper does not respect -fno-worker-wrapper
    #19553 · opened Mar 17, 2021 by Christiaan Baaij   Plow Tfeature request demand analysis ghc proposal
    • 11
    updated Apr 18, 2021
  • Non-existant scoping semantics for IMP-RULEs makes Simplifier build ill-scoped Core programs
    #19529 · opened Mar 12, 2021 by Sebastian Graf   Plow Tbug core lint rules simplifier
    • 5
    updated Apr 08, 2021
  • Rebindable Syntax and LinearTypes (allow a version of RebindableSyntax without ifThenElse)
    #19477 · opened Mar 02, 2021 by Edward Kmett   LinearTypes Plow RebindableSyntax Tfeature request
    • 1
    • 5
    updated Apr 08, 2021
  • Duplicated test in GHC.Tc.Solver.Rewrite.rewrite_exact_fam_app
    #19447 · opened Feb 26, 2021 by Simon Peyton Jones   Plow constraint solver info needed
    • 4
    updated Apr 09, 2021
  • User guide sections are in a strange order
    #19391 · opened Feb 17, 2021 by Matthew Pickering   Plow Tbug documentation newcomer
    • 1
    • 1
    updated Mar 06, 2021
  • Promotion quote syntax without -XDataKinds
    #19304 · opened Feb 03, 2021 by Krzysztof Gogolewski   DataKinds Plow Tbug program incorrectly accepted
    • 1
    updated Feb 08, 2021
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