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  • Glasgow Haskell Compiler
  • GHCGHC
  • Issues

  • Open 91
  • Closed 459
  • All 550
New issue
  • Priority Created date Last updated Milestone due date Due date Popularity Label priority Manual Weight
  • Data races in itimer_thread_func reported by ThreadSanitizer
    #16150 · opened Jan 08, 2019 by gnezdo   8.6.4   5   Pnormal RTS Trac import bug incorrect runtime result
    • CLOSED
    • 4
    updated Aug 20, 2019
  • Strictness is not preserved under -O1
    #16197 · opened Jan 17, 2019 by Alex Lang   8.8.1   5   Pnormal Trac import bug incorrect runtime result
    • CLOSED
    • 8
    updated Jul 07, 2019
  • PPC NCG: C calling convention violated for integers smaller than word size
    #16222 · opened Jan 23, 2019 by Peter Trommler   8.10.1   5   FFI Pnormal PowerPC Trac import bug incorrect runtime result
    • CLOSED
    • 3
    • 2
    updated Jul 07, 2019
  • PowerPC Big-Endian: ArithInt16, ArithInt8, ArithWord16, and ArithWord8 fail
    #16258 · opened Jan 30, 2019 by Peter Trommler   8.10.1   5   Pnormal Trac import bug incorrect runtime result
    • CLOSED
    • 3
    • 5
    updated Jul 07, 2019
  • Fix for #14619 is wrong
    #16514 · opened Apr 01, 2019 by Duane Ryrag   8.6.5   8   Phigh Windows bug code generation incorrect runtime result
    • CLOSED
    • 6
    • 7
    updated Feb 25, 2020
  • KnownNat: result changes depending on optimizations
    #16586 · opened Apr 17, 2019 by Bodigrim   8.8.1   10   Phighest bug incorrect runtime result specialisation
    • CLOSED
    • 7
    • 23
    updated Feb 25, 2020
  • On x86_64, `castFloatToWord32` can generate bad, signed `Word32`s
    #16617 · opened May 01, 2019 by KevinBuhr   bug incorrect runtime result
    • CLOSED
    • 3
    • 1
    updated May 24, 2019
  • -fno-omit-yields doesn't work at -O0
    #16713 · opened May 30, 2019 by roland   code generation incorrect runtime result
    • 1
    updated Jun 05, 2019
  • Use explicit lazy binding around undefined in inlinable functions
    #16810 · opened Jun 13, 2019 by kazu-yamamoto   8.9   7   Phigh Strict bug incorrect runtime result
    • 1
    • 14
    updated Jul 07, 2019
  • Optimizer produces Core with an infinite <<loop>> v2
    #17151 · opened Sep 04, 2019 by Alexey Kuleshevich   8.10.2   Phigh bug incorrect runtime result simplifier
    • CLOSED
    • 6
    updated Apr 07, 2020
  • Unsound optimization with -O in ghc 8.4 and 8.6 when using unsafeCoerce (produced by Agda)
    #17206 · opened Sep 18, 2019 by Andreas Abel   bug incorrect runtime result simplifier
    • 5
    updated Sep 19, 2019
  • Program hangs on ppc64el
    #17285 · opened Oct 01, 2019 by Ilias Tsitsimpis   PowerPC bug incorrect runtime result info needed
    • 8
    updated Nov 03, 2019
  • Rounding always throws an arithmetic underflow exception when used with a ratio of natural numbers
    #17303 · opened Oct 04, 2019 by taylorfausak   8.10.1   Phigh bug core libraries incorrect runtime result
    • CLOSED
    • 0
    updated Dec 06, 2019
  • Data.Fixed.mod' sometimes produces nonsensical results
    #17383 · opened Oct 21, 2019 by Roman Cheplyaka   8.10.1   Phigh bug core libraries incorrect runtime result
    • CLOSED
    • 1
    updated Oct 31, 2019
  • surprising SIGQUIT behavior "This build does not support backtraces."
    #17451 · opened Nov 07, 2019 by joeyh   Pnormal RTS bug incorrect runtime result
    • 3
    updated Nov 08, 2019
  • Runtime loop when using eqT
    #17458 · opened Nov 09, 2019 by Max Harms   Pnormal QuantifiedConstraints Typeable bug incorrect runtime result
    • CLOSED
    • 11
    updated Nov 13, 2019
  • text has different runtime behavior between GHC 8.6.5 and 8.8.1
    #17678 · opened Jan 13, 2020 by Ryan Scott   bug incorrect runtime result
    • CLOSED
    • 4
    updated Jan 13, 2020
  • ParallelListComp semantics differs from the documented one
    #17694 · opened Jan 16, 2020 by Roman Cheplyaka   Pnormal bug incorrect runtime result
    • 6
    updated Jan 17, 2020
  • OFD locking breaks on 32-bit glibc
    #17950 · opened Mar 23, 2020 by Ben Gamari   8.10.2   Phigh bug core libraries incorrect runtime result
    • CLOSED
    • 1
    • 2
    updated Jun 26, 2020
  • Global variables in GHC.IO.Encoding have inappropriate inlinings
    #17970 · opened Mar 28, 2020 by Ben Gamari   8.10.2   Phigh bug core libraries incorrect runtime result
    • CLOSED
    • 5
    • 2
    updated Mar 31, 2020
  • DeriveGeneric gets a wrong infix constructor associativity when type is declared in a different module
    #18101 · opened Apr 26, 2020 by Xia Li-yao   Pnormal bug deriving generics incorrect runtime result
    • 0
    updated May 10, 2020
  • Eta-expansion of a left-section
    #18151 · opened May 06, 2020 by Richard Eisenberg   9.0.1   Pnormal bug incorrect runtime result report impact typechecker
    • CLOSED
    • 1
    • 8
    updated Jan 12, 2021
  • Closure size functions will return incorrect for closures with static links
    #18269 · opened May 31, 2020 by Ömer Sinan Ağacan   Pnormal bug incorrect runtime result
    • 0
    updated Jun 02, 2020
  • `BlockedIndefinitelyOnMVar` is thrown to non-blocked threads
    #18370 · opened Jun 21, 2020 by Ole   RTS bug concurrency incorrect runtime result
    • 5
    updated Jun 24, 2020
  • withArgs and withProgName permanently modify argv[0]
    #18418 · opened Jul 03, 2020 by Andreas Herrmann   bug incorrect runtime result
    • 1
    updated Jul 14, 2020
  • Unboxed types in GHCi on big-endian platforms
    #18431 · opened Jul 07, 2020 by Stefan Schulze Frielinghaus   bug incorrect runtime result
    • 25
    updated Aug 26, 2020
  • GHC does not respect semantics of bang patterns
    #18444 · opened Jul 13, 2020 by Richard Eisenberg   BangPatterns Pnormal bug incorrect runtime result
    • 1
    updated Jul 27, 2020
  • targetByteOrder on s390x
    #18445 · opened Jul 14, 2020 by Andrew Martin   Pnormal bug incorrect runtime result s390x
    • 8
    updated Jul 27, 2020
  • Optimisation removes effectful computation.
    #18527 · opened Aug 03, 2020 by Tobias Decking   Phigh Windows bug code generation incorrect runtime result
    • CLOSED
    • 4
    • 13
    updated Aug 16, 2020
  • GHC.HsToCore.Coverage doesn't take expressions in View Patterns into account
    #18590 · opened Aug 19, 2020 by wz1000   HPC Pnormal bug incorrect runtime result
    • 0
    updated Sep 30, 2020
  • Bignum: natural subtraction sometimes wrong
    #18604 · opened Aug 24, 2020 by Sylvain Henry   Phighest bug ghc-bignum incorrect runtime result
    • CLOSED
    • 1
    updated Oct 12, 2020
  • Data.Bits.shiftL should generate overflow exception for Integer operand
    #18619 · opened Aug 29, 2020 by Sergei Trofimovich   Pnormal bug core libraries incorrect runtime result
    • 3
    updated Jan 24, 2021
  • Global ImplicitParams technique doesn't work with optimizations enabled
    #18627 · opened Aug 31, 2020 by Dmitrii Kovanikov   ImplicitParams bug incorrect runtime result needs triage
    • CLOSED
    • 5
    • 6
    updated Oct 13, 2020
  • Strange behavior when optimization is turned on, with GHC >= 8.2.2
    #18829 · opened Oct 11, 2020 by Vanessa McHale   Phigh bug incorrect runtime result
    • 8
    updated Nov 09, 2020
  • Reversed profile stack
    #18868 · opened Oct 20, 2020 by Douglas RAILLARD   Pnormal bug incorrect runtime result profiling
    • 3
    updated Oct 20, 2020
  • Fix Alternative instance for IO
    #18871 · opened Oct 21, 2020 by Isaac Berger   bug core libraries incorrect runtime result
    • 6
    updated Feb 12, 2021
  • T13330 fails sporatically on Windows
    #18876 · opened Oct 22, 2020 by Ben Gamari   Pnormal Windows bug incorrect runtime result
    • 0
    updated Oct 22, 2020
  • Segfault on s390x due to missing sign/zero extend
    #19023 · opened Dec 03, 2020 by Stefan Schulze Frielinghaus   LLVM backend bug incorrect runtime result s390x
    • CLOSED
    • 8
    • 4
    updated Jan 26, 2021
  • Strange behavior when using -O
    #19053 · opened Dec 12, 2020 by Arthur Khashaev   Pnormal bug incorrect runtime result simplifier
    • 1
    • 2
    updated Dec 15, 2020
  • CPP def name typo: THREADEDED_RTS
    #19057 · opened Dec 13, 2020 by Csaba Hruska   RTS bug incorrect runtime result
    • CLOSED
    • 3
    • 2
    updated Dec 19, 2020
  • Restarting event log results in invalid output
    #19078 · opened Dec 16, 2020 by Ben Gamari   RTS bug eventlog incorrect runtime result
    • 1
    • 0
    updated Dec 16, 2020
  • arithmetic sequence discrepancy
    #19080 · opened Dec 17, 2020 by DOUGLAS MCILROY   Phigh bug core libraries incorrect runtime result
    • CLOSED
    • 6
    updated Dec 17, 2020
  • Error in accounting for GC cpu time in sequential collections
    #19147 · opened Jan 01, 2021 by Douglas Wilson   Pnormal RTS bug incorrect runtime result
    • 1
    updated Feb 24, 2021
  • ghci's :type still ignores ill-kinded type application with -fdefer-type-errors
    #19158 · opened Jan 03, 2021 by Jakob Brünker   GHCi Pnormal bug deferred type errors incorrect runtime result
    • CLOSED
    • 4
    • 2
    updated Jan 22, 2021
  • Natural shiftL 0 65 not equal to 0
    #19170 · opened Jan 05, 2021 by Christiaan Baaij   9.0.1   Phighest bug ghc-bignum incorrect runtime result
    • CLOSED
    • 5
    • 1
    updated Jan 29, 2021
  • Type literals in Reflection of type constructor kinds leads to SafeHaskell violation
    #19288 · opened Jan 31, 2021 by Kyle Ehrlich   9.0.2   Typeable bug incorrect runtime result needs triage
    • CLOSED
    • 3
    • 6
    updated Feb 05, 2021
  • Optimisations cause incorrect runtime result in Integer calculation
    #19345 · opened Feb 10, 2021 by sheaf   9.0.1   Phighest backport bug ghc-bignum incorrect runtime result
    • CLOSED
    • 9
    updated Feb 16, 2021
  • Data.Complex doesn't consistently distinguish -0.0
    #19369 · opened Feb 14, 2021 by JKTKops   Pnormal bug core libraries incorrect runtime result numerics
    • 2
    updated Feb 21, 2021
  • fromIntegral (2^64 :: Integer) == (0 :: Natural)
    #19411 · opened Feb 20, 2021 by Bodigrim   9.0.2   Phighest bug ghc-bignum incorrect runtime result
    • 8
    updated Feb 22, 2021
  • unsafePerformIO/NOINLINE tricks no longer work
    #19413 · opened Feb 21, 2021 by Neil Mitchell   Phighest bug incorrect runtime result
    • 7
    updated Feb 23, 2021
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