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  • Glasgow Haskell Compiler
  • GHCGHC
  • Issues

  • Open 26
  • Closed 706
  • All 732
New issue
  • Priority Created date Last updated Milestone due date Due date Popularity Label priority Manual Weight Blocking
  • GHC 9.0+ fails to combine levity-polymorphic newtype constructor with TypeApplications
    #19728 · opened Apr 22, 2021 by Ryan Scott   Phighest Tbug TypeApplications UnliftedNewtypes levity polymorphism program incorrectly rejected typechecker
    • CLOSED
    • 2
    updated Apr 22, 2021
  • GHC-9.0.1 doesn't find imported main:
    #19397 · opened Feb 18, 2021 by Oleg Grenrus   9.0.2   Phighest Tbug backport needed:9.0
    • CLOSED
    • 2
    • 1
    • 13
    updated Apr 17, 2021
  • case over signum of Integer is incorrect in GHC 9.2
    #19680 · opened Apr 09, 2021 by Bodigrim   9.2.1   Phighest Tbug backport needed:9.2 ghc-bignum incorrect runtime result
    • CLOSED
    • 2
    • 12
    updated Apr 16, 2021
  • High memory usage during compilation
    #13059 · opened Jan 03, 2017 by Domen Kožar   8.2.1   10   Phighest Tbug Trac import compiler perf
    • CLOSED
    • 41
    updated Apr 14, 2021
  • Regression: HEAD incurs a reduction stack overflow on program involving type equality
    #19042 · opened Dec 09, 2020 by Ryan Scott   9.2.1   Phighest Tbug program incorrectly rejected typechecker
    • CLOSED
    • 7
    • 12
    updated Apr 14, 2021
  • Segfault during GC with -ffull-laziness and unsafeCoerce#
    #17439 · opened Nov 06, 2019 by Leon P Smith   8.8.2   Phighest Tbug runtime crash
    • CLOSED
    • 13
    updated Apr 12, 2021
  • Implement with# primop
    #14375 · opened Oct 20, 2017 by Simon Peyton Jones   9.0.1   10   Phighest Tbug Trac import join points
    • CLOSED
    • 2
    • 30
    updated Apr 12, 2021
  • KnownNat: result changes depending on optimizations
    #16586 · opened Apr 17, 2019 by Bodigrim   8.8.1   10   Phighest Tbug incorrect runtime result specialisation
    • CLOSED
    • 7
    • 23
    updated Apr 09, 2021
  • $(tupE [ [|x|] ]) /= Unit x
    #18097 · opened Apr 24, 2020 by aavogt   8.10.2   Phighest Tbug TemplateHaskell
    • CLOSED
    • 3
    • 5
    updated Apr 07, 2021
  • -O1 changes result at runtime, duplicating __DEFAULT case
    #14768 · opened Feb 06, 2018 by Bodigrim   8.4.1   10   Phighest Tbug Trac import incorrect runtime result
    • CLOSED
    • 9
    updated Apr 06, 2021
  • Consistent segfault when compiled program is executed
    #16893 · opened Jul 01, 2019 by Alexey Kuleshevich   9.0.1   10   Phighest Tbug runtime crash
    • CLOSED
    • 11
    • 88
    updated Mar 23, 2021
  • Segfault in GC in GHC 8.10.{3,4}
    #19417 · opened Feb 22, 2021 by Adam Sandberg Eriksson   8.10.5   Phighest Tbug compiler crash
    • CLOSED
    • 1
    • 23
    updated Mar 17, 2021
  • Optimisations cause incorrect runtime result in Integer calculation
    #19345 · opened Feb 10, 2021 by sheaf   9.0.1   Phighest Tbug backport ghc-bignum incorrect runtime result
    • CLOSED
    • 9
    updated Mar 10, 2021
  • conduit-1.3.4 builds with 9.0.1, but not HEAD, due to regression in typechecking sections
    #19457 · opened Feb 27, 2021 by Ryan Scott   9.2.1   Phighest Tbug program incorrectly rejected typechecker
    • CLOSED
    • 2
    • 3
    updated Mar 09, 2021
  • Regression: HEAD fails to typecheck uses of (GHC.TypeNats.<=) that 9.0.1 could
    #19492 · opened Mar 05, 2021 by Ryan Scott   9.2.1   Phighest Tbug core libraries program incorrectly rejected
    • CLOSED
    • 10
    updated Mar 08, 2021
  • fromIntegral (2^64 :: Integer) == (0 :: Natural)
    #19411 · opened Feb 20, 2021 by Bodigrim   9.0.2   Phighest Tbug ghc-bignum incorrect runtime result
    • CLOSED
    • 11
    updated Mar 04, 2021
  • "GHC.StgToCmm.Env: variable not found" panic when compiling with -fobject-code (HEAD only)
    #17871 · opened Feb 23, 2020 by Ryan Scott   9.0.1   Phighest Tbug compiler crash
    • CLOSED
    • 11
    updated Feb 28, 2021
  • GHC 9.0 regression: plots-0.1.1.2 fails to build due to ambiguous type variable
    #19315 · opened Feb 03, 2021 by Ryan Scott   9.0.2   Phighest Tbug program incorrectly rejected typechecker
    • CLOSED
    • 11
    updated Feb 10, 2021
  • Over-instantiation with :kind!
    #19279 · opened Jan 29, 2021 by Adam Gundry   9.2.1   GHCi Phighest Tbug
    • CLOSED
    • 4
    • 4
    updated Feb 06, 2021
  • Slowdown in ghc compile times from GHC 8.0.2 to GHC 8.2.1 when doing Called arity analysis
    #15164 · opened May 18, 2018 by Philippe   8.6.1   10   Phighest Tbug Trac import compiler perf
    • CLOSED
    • 23
    updated Feb 04, 2021
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