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  • Glasgow Haskell Compiler
  • GHCGHC
  • Issues

  • Open 4,394
  • Closed 13,921
  • All 18,315
New issue
  • Priority Created date Last updated Milestone due date Due date Popularity Label priority Manual Weight Blocking
  • Error when building Stack - ghc panic
    #16424 · opened Mar 11, 2019 by absolutely proprietary   Mar 19, 2019   info needed
    • CLOSED
    • 2
    updated Mar 18, 2019
  • HIE file versions are not checked, and they don't have a sensible header
    #16686 · opened May 23, 2019 by wz1000   8.8.1   May 24, 2019   hie files
    • CLOSED
    • 5
    • 2
    updated Jun 19, 2019
  • Performance of type family consistency checks
    #19703 · opened Apr 14, 2021 by Pepe Iborra   needs triage
    • 0
    updated Apr 14, 2021
  • Unused modules incorrectly flagged on re-exports
    #19702 · opened Apr 14, 2021 by John Ky   needs triage
    • 2
    updated Apr 14, 2021
  • Some text benchmarks got slower in 9.2.0.20210331
    #19701 · opened Apr 13, 2021 by Bodigrim   9.2.1   core libraries needs triage potential runtime perf regression runtime perf
    • 0
    updated Apr 13, 2021
  • regression in GHC 9.0.1: panic converting to STG
    #19700 · opened Apr 13, 2021 by infinity0   9.0.2   Phighest Tbug compiler crash needs triage
    • 2
    updated Apr 14, 2021
  • EPA: Use less cryptic names for EpaAnchor constructors
    #19699 · opened Apr 13, 2021 by Alan Zimmerman   API annotations needs triage
    • 0
    updated Apr 13, 2021
  • EPA : reconsider the DeltaPos encoding
    #19698 · opened Apr 13, 2021 by Alan Zimmerman   API annotations needs triage
    • 0
    updated Apr 13, 2021
  • EPA : End of file marker
    #19697 · opened Apr 13, 2021 by Alan Zimmerman   API annotations
    • 0
    updated Apr 13, 2021
  • Occassional PROTOCOL_ERRORs during Darwin builds
    #19696 · opened Apr 13, 2021 by Ben Gamari   Tbug infrastructure
    • 1
    updated Apr 13, 2021
  • Exponential memory use when using lots of <*>
    #19695 · opened Apr 13, 2021 by maxigit   Pnormal Tbug compiler perf
    • 3
    updated Apr 13, 2021
  • `Messages` can't be easily printed for debugging purposes
    #19694 · opened Apr 13, 2021 by Matthew Pickering   needs triage
    • 1
    updated Apr 13, 2021
  • Data.Typeable.Internal with -fwrite-ide-info causes a panic
    #19693 · opened Apr 13, 2021 by Matthew Pickering   needs triage
    • 1
    • 2
    updated Apr 14, 2021
  • Don't suggest turning on `DeriveAnyClass` when an instance cannot be derived
    #19692 · opened Apr 13, 2021 by syd@cs-syd.eu   needs triage
    • 1
    • 0
    updated Apr 13, 2021
  • Add 'pattern TypeRep :: () => Typeable a => TypeRep a' to Type.Reflection
    #19691 · opened Apr 12, 2021 by Icelandjack   Tfeature request Typeable core libraries
    • 1
    • 5
    updated Apr 13, 2021
  • Bottom dictionaries can be derived with QuantifiedConstraints, UndecidableInstances and UndecidableSuperClasses
    #19690 · opened Apr 12, 2021 by aadaa-fgtaa   Pnormal QuantifiedConstraints Tbug UndecidableSuperClasses typechecker
    • 2
    updated Apr 13, 2021
  • setNumCapabilities: not supported on s390x
    #19689 · opened Apr 12, 2021 by Elton de Souza   Pnormal RTS Tfeature request s390x
    • 3
    updated Apr 13, 2021
  • :info no longer shows instances of poly-kinded data families in GHC 9.2+
    #19688 · opened Apr 11, 2021 by Ryan Scott   9.2.1   GHCi Phigh Tbug TypeFamilies backport needed:9.2
    • 3
    • 8
    updated Apr 13, 2021
  • Re-export Data.Bits uses wrong base min version
    #19687 · opened Apr 11, 2021 by Shayne Fletcher   needs triage
    • CLOSED
    • 1
    updated Apr 11, 2021
  • Internal error running FFI interpreter on Visual Studio
    #19686 · opened Apr 10, 2021 by Allan Schöttler   Tbug Windows compiler crash linking
    • 3
    updated Apr 13, 2021
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