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  • Glasgow Haskell Compiler
  • GHCGHC
  • Issues

  • Open 103
  • Closed 497
  • All 600
New issue
  • Priority Created date Last updated Milestone due date Due date Popularity Label priority Manual Title Weight Blocking
  • Non-ASCII type names get garbled when their `TypeRep` is shown
    #14925 · created Mar 15, 2018 by leftaroundabout   8.4.2   3   Plow Tbug Trac import Typeable Unicode core libraries incorrect runtime result
    • CLOSED
    • 3
    updated Jul 07, 2019
  • GHC 8.4.1 regression: derived Read instances with field names containing # no longer parse
    #14918 · created Mar 14, 2018 by Ryan Scott   8.4.2   7   Phigh Tbug Trac import deriving incorrect runtime result
    • CLOSED
    • 6
    updated Jul 07, 2019
  • -O -g breaks string literals
    #14868 · created Feb 28, 2018 by takano-akio   8.4.2   5   Pnormal Tbug Trac import incorrect runtime result
    • CLOSED
    • 4
    updated Jul 07, 2019
  • getNumCapabilities produces incorrect CPU counts
    #14781 · created Feb 09, 2018 by rtfeldman   5   Pnormal RTS Tbug Trac import core libraries incorrect runtime result
    • CLOSED
    • 3
    • 5
    updated Sep 28, 2020
  • -O1 changes result at runtime, duplicating __DEFAULT case
    #14768 · created Feb 06, 2018 by Bodigrim   8.4.1   10   Phighest Tbug Trac import incorrect runtime result
    • CLOSED
    • 9
    updated Apr 06, 2021
  • -O1 changes result at runtime
    #14754 · created Feb 03, 2018 by Bodigrim   8.4.1   10   Phighest Tbug Trac import incorrect runtime result
    • CLOSED
    • 10
    updated Jul 07, 2019
  • Deriving Show with -XEmptyDataDeriving cases on the wrong argument
    #14692 · created Jan 20, 2018 by Ryan Scott   8.4.1   7   Phigh Tbug Trac import deriving incorrect runtime result
    • CLOSED
    • 2
    updated Jul 07, 2019
  • More incorrect Template Haskell parenthesization
    #14681 · created Jan 17, 2018 by Ryan Scott   5   Pnormal Tbug TemplateHaskell Trac import incorrect runtime result
    • CLOSED
    • 2
    updated Jul 07, 2019
  • GHC 8.4.1 regression: rank-n types no longer parenthesized when pretty-printed
    #14646 · created Jan 08, 2018 by Ryan Scott   8.4.1   7   GHC API Phigh Tbug Trac import incorrect runtime result
    • CLOSED
    • 9
    updated Jul 07, 2019
  • Output value of program changes upon compiling with -O optimizations
    #14619 · created Dec 26, 2017 by sheaf   8.4.1   10   Phighest Tbug Trac import code generation incorrect runtime result
    • CLOSED
    • 46
    updated Jul 07, 2019
  • NoFib : fasta benchmark produces unexpected output on slow/fast modes.
    #14557 · created Dec 05, 2017 by Andreas Klebinger   5   Pnormal Tbug Trac import documentation incorrect runtime result nofib
    • CLOSED
    • 2
    updated Jul 07, 2019
  • RecordWildCards doesn't work properly in repl
    #14549 · created Dec 01, 2017 by akegalj   0   GHCi Plow RecordWildCards Tbug Trac import incorrect runtime result records
    • CLOSED
    • 2
    updated Jul 07, 2019
  • -prof causes -N to default to 1
    #14545 · created Nov 29, 2017 by gelisam   8.4.1   5   Pnormal Tbug Trac import incorrect runtime result
    • CLOSED
    • 3
    updated Jul 07, 2019
  • Infinite loop at runtime
    #14521 · created Nov 24, 2017 by OlivierSohn   8.2.3   7   Phigh Tbug Trac import incorrect runtime result
    • CLOSED
    • 23
    updated Jul 07, 2019
  • +RTS -hT does not report about SmallArray objects
    #14513 · created Nov 23, 2017 by takano-akio   8.4.1   5   Pnormal RTS Tbug Trac import incorrect runtime result profiling
    • CLOSED
    • 3
    updated Jul 07, 2019
  • PPC64: Wrong output in print022
    #14455 · created Nov 12, 2017 by Peter Trommler   5   GHCi Pnormal Tbug Trac import broken test incorrect runtime result
    • CLOSED
    • 2
    • 1
    updated Jul 10, 2020
  • GHC 8.2.1 picks wrong instances with -O in a presence of an OVERLAPPABLE instance
    #14434 · created Nov 07, 2017 by dredozubov   8.4.1   7   Phigh Tbug Trac import incorrect runtime result
    • CLOSED
    • 7
    updated Jul 07, 2019
  • approxRational is wrong when (rat - eps) overflows in negative direction
    #14425 · created Nov 06, 2017 by danielk   8.4.1   5   Pnormal Tbug Trac import core libraries incorrect runtime result
    • CLOSED
    • 4
    updated Jul 07, 2019
  • some results not expected with the addition
    #14377 · created Oct 21, 2017 by vanto   5   Pnormal Tbug Trac import incorrect runtime result
    • CLOSED
    • 18
    updated Jul 07, 2019
  • GHC HEAD miscompiles `text-containers`
    #14361 · created Oct 17, 2017 by Herbert Valerio Riedel   8.4.1   7   Phigh Tbug Trac import incorrect runtime result
    • CLOSED
    • 14
    updated Jul 07, 2019
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