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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
  • New core transformation: promote case[One] into case[Many]
    #18471 · opened Jul 17, 2020 by Arnaud Spiwack   LinearTypes feature request runtime perf
    • 0
    updated Jul 23, 2020
  • Per-use strict dictionaries
    #17811 · opened Feb 10, 2020 by Zemyla   feature request runtime perf
    • 4
    updated Jul 21, 2020
  • Let tagToEnum# work with GADTs
    #16989 · opened Jul 25, 2019 by David Feuer   GADTs Pnormal feature request runtime perf
    • 2
    updated Jul 21, 2020
  • Failure to recognise join point leads to slow down
    #18360 · opened Jun 19, 2020 by Sebastian Graf   feature request join points runtime perf simplifier
    • 9
    updated Jul 17, 2020
  • Linear types syntax: multiplicity annotations on lambdas and patterns
    #18460 · opened Jul 16, 2020 by Arnaud Spiwack   LinearTypes feature request
    • 0
    updated Jul 17, 2020
  • Cmm: Needs CSE pass
    #18448 · opened Jul 14, 2020 by Moritz Angermann   feature request runtime perf
    • 0
    updated Jul 17, 2020
  • bring full top level of a module in scope when a breakpoint is hit in the module
    #2803 · opened Nov 23, 2008 by phercek   0   GHCi Plow Trac import debugger feature request
    • 10
    updated Jul 15, 2020
  • Type-Level floats
    #18407 · opened Jun 29, 2020 by LeanderK   feature request numerics type literals
    • 4
    updated Jul 14, 2020
  • Teach GHC to Compile Windows Resource Files
    #18428 · opened Jul 06, 2020 by Travis Whitaker   Windows feature request
    • 4
    updated Jul 12, 2020
  • Missing MonadFail (Kleisli m a)
    #17994 · opened Mar 31, 2020 by Icelandjack   core libraries feature request
    • 1
    • 5
    updated Jul 12, 2020
  • Preserve one-shot info when eta-expanding
    #18355 · opened Jun 18, 2020 by Simon Peyton Jones   Arity and eta expansion feature request simplifier
    • 2
    updated Jul 11, 2020
  • readHexRational missing from Numeric
    #16216 · opened Jan 22, 2019 by Merijn Verstraaten   5   Pnormal Trac import core libraries feature request
    • 1
    • 7
    updated Jul 10, 2020
  • Move `Data.Profunctor` from `profunctors` package to `base`
    #16173 · opened Jan 13, 2019 by Dmitrii Kovanikov   5   Pnormal QuantifiedConstraints Trac import core libraries feature request
    • 5
    • 17
    updated Jul 09, 2020
  • Explore profile guided specialization.
    #18393 · opened Jun 25, 2020 by Andreas Klebinger   feature request runtime perf
    • 0
    updated Jul 05, 2020
  • Allow for multiple linker instances
    #3372 · opened Jul 14, 2009 by Daniel Gorín   8.0.1   3   Plow Trac import feature request
    • 31
    updated Jul 05, 2020
  • ghci -interactive-print for types
    #17391 · opened Oct 23, 2019 by Björn Gohla   GHCi developer experience feature request
    • 4
    updated Jul 03, 2020
  • Introduce ghc --run mode
    #18011 · opened Apr 03, 2020 by Ben Gamari   developer experience feature request
    • 1
    • 1
    updated Jul 03, 2020
  • HIE files compatibility across different GHC versions
    #18329 · opened Jun 11, 2020 by Dmitrii Kovanikov   developer experience feature request hie files
    • 2
    • 5
    updated Jul 03, 2020
  • Use higher resolution for max residency measurements in performance tests.
    #17387 · opened Oct 22, 2019 by Andreas Klebinger   compiler perf feature request perf tests testsuite
    • 13
    updated Jun 30, 2020
  • Support RecordWildCards in HPC
    #17834 · opened Feb 13, 2020 by Brandon Chinn   HPC RecordWildCards feature request records
    • 1
    • 1
    updated Jun 29, 2020
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