Issues · Glasgow Haskell Compiler / GHC

New issue

GHC internal error: associated type not in scope during typechecking

#13687 · opened May 11, 2017 by mrkgnao 5 Pnormal Tbug Trac import compiler crash typechecker
- CLOSED
- 2
updated Jul 07, 2019
xmobar crashes with segmentation faults?

#13707 · opened May 16, 2017 by Ben Gamari 8.2.1 10 Phighest Tbug Trac import compiler crash
- CLOSED
- 25
updated Jul 07, 2019
panic with boot and -jX

#13710 · opened May 17, 2017 by pacak 8.4.1 5 Pnormal Tbug Trac import compiler crash hs-boot
- CLOSED
- 17
updated Jul 07, 2019
test dynamic-paper for way profasm fails with Simplifier ticks exhausted

#13715 · opened May 17, 2017 by george.colpitts Research needed 5 Pnormal Tbug Trac import compiler crash simplifier
- 8
updated Jul 07, 2019
Recover gracefully from simplifier tick exhaustion

#13723 · opened May 18, 2017 by David Feuer 5 Pnormal Tfeature request Trac import compiler crash
- 4
updated Jan 23, 2020
TypeApplications-related GHC internal error

#13738 · opened May 22, 2017 by Ryan Scott 8.4.1 5 Pnormal Tbug Trac import TypeApplications compiler crash
- CLOSED
- 21
updated Jul 07, 2019
GHC panic with operator constructor of newtype

#13740 · opened May 22, 2017 by codebje 5 Pnormal Tbug Trac import compiler crash typechecker
- CLOSED
- 2
updated Jul 07, 2019
Panic (initTc: unresolved constraints) on some bad code

#13749 · opened May 23, 2017 by uranium 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 4
updated Jul 07, 2019
Bullish use of Template Haskell's newName causes GHC internal error

#13782 · opened Jun 02, 2017 by Ryan Scott 8.2.1 7 Phigh Tbug TemplateHaskell Trac import compiler crash
- CLOSED
- 12
updated Jul 07, 2019
GHCi linker is dependent upon object file order

#13786 · opened Jun 04, 2017 by ppelleti 8.8.1 8 GHCi Phigh Tbug Trac import compiler crash linking
- CLOSED
- 4
- 15
updated Feb 17, 2020
The compiler told me to report this. I have no idea what happened

#13787 · opened Jun 04, 2017 by gleb_dianov 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 4
updated Jul 07, 2019
ghc panic: No skolem info: s_a7aK[sk]

#13800 · opened Jun 08, 2017 by hexo 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 4
updated Jul 07, 2019
Installation of yesod-auth-1.4.13.2 fails with "ghc: panic! (the 'impossible' happened)"

#13802 · opened Jun 08, 2017 by nvbt 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 1
updated Jul 07, 2019
Panic while forcing the thunk for TyThing IsFile (regression)

#13803 · opened Jun 08, 2017 by inaki 8.2.1 5 Pnormal Tbug Trac import compiler crash hs-boot
- CLOSED
- 19
updated Jul 07, 2019
TypeApplications-related GHC panic

#13819 · opened Jun 12, 2017 by Icelandjack 8.4.1 7 Phigh Tbug Trac import TypeApplications compiler crash typechecker
- CLOSED
- 14
updated Jul 07, 2019
Calling qReifyInstances on out-of-scope Name leads to GHC internal error

#13837 · opened Jun 16, 2017 by Ryan Scott 8.4.1 5 Pnormal Tbug TemplateHaskell Trac import compiler crash
- CLOSED
- 2
updated May 29, 2020
-Wdeferred-type-errors on a program with main not of type IO () yields "main thread exited (uncaught exception)"

#13838 · opened Jun 17, 2017 by harry 8.6.1 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 6
updated Jul 07, 2019
Pattern matching duplicated record fields

#13840 · opened Jun 17, 2017 by lapdot 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 1
updated Jul 07, 2019
Incorrect function signature causes the impossible to happen

#13850 · opened Jun 20, 2017 by erikd 8.2.1 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 2
updated Jul 07, 2019
the 'impossible' happened initTc: unsolved constraints

#13854 · opened Jun 20, 2017 by bitemyapp 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 1
updated Jul 07, 2019
GHC panic in 8.2 only: typeIsTypeable(Coercion)

#13871 · opened Jun 23, 2017 by Ryan Scott 8.2.1 7 Phigh Tbug Trac import TypeInType Typeable compiler crash typechecker
- CLOSED
- 6
updated Jul 07, 2019
GHC panic related to hybrid-vectors

#13874 · opened Jun 25, 2017 by ocramz 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 2
updated Jul 07, 2019
GHC panic: No skolem info: k2

#13877 · opened Jun 26, 2017 by Ryan Scott 8.4.1 5 Pnormal Tbug Trac import TypeApplications compiler crash typechecker
- CLOSED
- 10
updated Jul 07, 2019
panic initTc: unsolved constraints

#13880 · opened Jun 27, 2017 by vanto 8.2.1 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 1
updated Jan 24, 2020
GHC panic when using GHC plugins

#13886 · opened Jun 27, 2017 by Darwin226 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 13
updated Jul 07, 2019
GHC 8.0.2 panics when trying a simple snippet involving Parsec

#13888 · opened Jun 28, 2017 by timmyjose 5 Pnormal Tbug Trac import compiler crash macOS
- CLOSED
- 1
updated Jul 07, 2019
GHC 8.0.2 panics when trying a simple snippet involving Parsec

#13889 · opened Jun 28, 2017 by timmyjose 5 Pnormal Tbug Trac import compiler crash macOS
- CLOSED
- 2
updated Jul 07, 2019
Core lint in BuildFlavour=perf-llvm

#13900 · opened Jun 29, 2017 by Ben Gamari 8.6.1 10 Phighest Tbug Trac import compiler crash
- CLOSED
- 16
updated Jul 07, 2019
Inlining a definition causes GHC to panic (repSplitTyConApp_maybe)

#13910 · opened Jul 01, 2017 by Ryan Scott 8.6.1 5 Pnormal Tbug Trac import TypeInType compiler crash typechecker
- CLOSED
- 6
updated Jul 07, 2019
Panic!

#13925 · opened Jul 05, 2017 by Deus 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 1
updated Jul 07, 2019
Panic!

#13926 · opened Jul 05, 2017 by Deus 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 1
updated Jul 07, 2019
Panic!

#13927 · opened Jul 05, 2017 by Deus 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 5
updated Jul 07, 2019
GHC and GHCi dumps "panic!" ("initTc: unsolved constraints")

#13932 · opened Jul 07, 2017 by aiya000 5 GHCi Pnormal Tbug Trac import compiler crash
- CLOSED
- 5
updated Jul 07, 2019
ghc panic compiling lame-0.1.1

#13956 · opened Jul 10, 2017 by uznx 8.2.2 5 Pnormal Tbug Trac import compiler crash
- 5
updated Jul 07, 2019
Simplifier ticks exhausted (when trying UnfoldingDone) from using lots of ByteString Builder literals

#13967 · opened Jul 12, 2017 by Sergey Vinokurov 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 4
updated Jul 07, 2019
NamedFieldPuns fails for qualified imports if field name is already in scope

#13973 · opened Jul 13, 2017 by Sergey Vinokurov 5 Pnormal Tbug Trac import compiler crash error messages
- CLOSED
- 3
updated Jul 07, 2019
Panic when using a TH splice in a do bind pattern

#13984 · opened Jul 16, 2017 by mbieleck 8.2.1 7 Phigh Tbug TemplateHaskell Trac import compiler crash
- CLOSED
- 7
updated Jul 07, 2019
GHC 8.0 regression: ‘k’ is not in scope during type checking, but it passed the renamer

#13985 · opened Jul 16, 2017 by Ryan Scott 8.4.1 5 Pnormal Tbug Trac import TypeFamilies compiler crash typechecker
- CLOSED
- 4
updated Jul 07, 2019
use templateHaskell type checker panic

#13989 · opened Jul 17, 2017 by chinaxing 5 Pnormal Tbug Trac import compiler crash typechecker
- CLOSED
- 2
updated Jul 07, 2019
Core Lint error on empty case

#13990 · opened Jul 17, 2017 by mbieleck 8.2.3 10 Phighest Tbug Trac import compiler crash
- CLOSED
- 16
updated Jul 07, 2019
GHCi panic: "Loading temp shared object failed" when adding a new module

#13997 · opened Jul 19, 2017 by mbieleck 5 GHCi Pnormal Tbug Trac import compiler crash
- 0
updated Jul 07, 2019
typechecker tests T13594 T13822 tc269 T13780c failing in devel2 flavour

#14024 · opened Jul 23, 2017 by Douglas Wilson 5 Pnormal Tbug Trac import compiler crash testsuite
- CLOSED
- 7
updated Jul 07, 2019
ghc panic: -fexternal-interpreter + .o + QuasiQuotes?

#14028 · opened Jul 25, 2017 by blynn 8.2.1 5 Pnormal Tbug Trac import compiler crash remote GHCi
- CLOSED
- 4
updated Dec 09, 2019
Invalid newtype causes GHC to panic rather than fail to compile

#14033 · opened Jul 26, 2017 by InThisStyle10s6p 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 2
updated Jul 07, 2019
GHC crash instead of compile error on GHC 8.2 with ApplicativeDo

#14034 · opened Jul 26, 2017 by Niklas Hambüchen 8.2.2 10 Phighest Tbug Trac import compiler crash
- CLOSED
- 3
updated Jul 07, 2019
Typed holes regression in GHC 8.0.2: No skolem info: z_a1sY[sk:2]

#14040 · opened Jul 27, 2017 by Ryan Scott 5 Pnormal Tbug Trac import TypeFamilies TypeInType compiler crash partial type sigs typechecker typed holes
- 17
updated Jan 23, 2020
Runtime linker failed due to a duplicate symbol definition

#14053 · opened Jul 29, 2017 by SwiftsNamesake 5 Pnormal Tbug Trac import Windows compiler crash linking
- CLOSED
- 10
updated Jul 07, 2019
Panic on type error inside a type-level newtype

#14055 · opened Jul 29, 2017 by luqui 8.4.1 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 3
updated Jul 07, 2019
Compiling with --backpack with undefined dependency results in "the 'impossible' happened"

#14063 · opened Jul 30, 2017 by rcook 5 Pnormal Tbug Trac import backpack compiler crash
- 2
updated Jul 07, 2019
GHC panic with parallel make

#14075 · opened Aug 01, 2017 by inaki 8.2.2 7 Phigh Tbug Trac import compiler crash hs-boot
- CLOSED
- 6
updated Jul 07, 2019
GHC panic while forcing the thunk for TyThing IsFile (regression)

#14080 · opened Aug 02, 2017 by inaki 8.2.2 7 Phigh Tbug Trac import compiler crash hs-boot
- CLOSED
- 12
updated Jul 07, 2019
Ambiguous record field name destructure on qualified imported modules causes compiler crash

#14087 · opened Aug 03, 2017 by philipwhite 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 1
updated Jul 07, 2019
panic! (the 'impossible' happened)

#14102 · opened Aug 09, 2017 by pmckelvy 8.2.1 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 2
updated Jul 07, 2019
GHC segfaults trying to use TH code when ghc is compiled as DYNAMIC_GHC_PROGRAMS=NO

#14115 · opened Aug 15, 2017 by pacak 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 28
updated Jul 07, 2019
-fignore-interface-pragmas and -fspecialise do not go well together

#14127 · opened Aug 16, 2017 by lspitzner 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 6
updated Jul 07, 2019
PatternSynonyms regression in GHC HEAD (expectJust mkOneConFull)

#14135 · opened Aug 17, 2017 by Ryan Scott 8.4.1 10 Phighest PatternSynonyms Tbug Trac import compiler crash
- CLOSED
- 17
updated Jul 07, 2019
Stack Overflow with ApplicativeDo

#14163 · opened Aug 28, 2017 by lippling 8.2.2 7 ApplicativeDo Phigh Tbug Trac import compiler crash
- CLOSED
- 13
updated Jul 07, 2019
ghci panics when using type applications on variables that aren't in scope

#14169 · opened Aug 29, 2017 by tysonzero 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 1
updated Jul 07, 2019
GHC hangs during type-checking

#14172 · opened Aug 31, 2017 by Isaac Elliott 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 7
updated Jul 07, 2019
GHC hangs during type-checking

#14173 · opened Aug 31, 2017 by Isaac Elliott 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 3
updated Jul 07, 2019
GHC panic with TypeInType and type family

#14174 · opened Aug 31, 2017 by David Feuer 8.2.3 5 Pnormal Tbug Trac import TypeInType compiler crash typechecker
- CLOSED
- 7
updated Jul 07, 2019
Panic repSplitTyConApp_maybe

#14175 · opened Aug 31, 2017 by David Feuer 8.2.2 5 Pnormal Tbug Trac import TypeInType compiler crash typechecker
- CLOSED
- 10
updated Jul 07, 2019
initTc: unsolved constraints

#14177 · opened Sep 01, 2017 by satnam 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 1
updated Jul 07, 2019
Interface-file decls for large tuples

#14217 · opened Sep 11, 2017 by Eric Crockett 8.2.2 7 Phigh Tbug Trac import compiler crash
- CLOSED
- 8
updated Jul 07, 2019
Probably AllowAmbiguousTypes + UndecidableInstances + TypeInType

#14246 · opened Sep 18, 2017 by Toricon 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 5
updated Jul 07, 2019
ghc: internal error: PAP object entered!

#14269 · opened Sep 22, 2017 by erisco 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 4
updated Feb 09, 2021
GHC HEAD's ghc-stage1 panics on Data.Typeable.Internal

#14270 · opened Sep 22, 2017 by Herbert Valerio Riedel 9.2.1 7 Phigh Tbug Trac import Typeable compiler crash
- 23
updated Jan 23, 2021
Aarch64 build is broken

#14280 · opened Sep 26, 2017 by Ben Gamari 8.4.1 7 Phigh Tbug Trac import compiler crash
- CLOSED
- 4
updated Jul 07, 2019
ghc panic on simple program

#14302 · opened Oct 01, 2017 by aberent 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 3
updated Jul 07, 2019
Panic on COMPLETE pragma with mismatched type variable order

#14326 · opened Oct 05, 2017 by dailectic 8.4.1 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 7
updated Jul 07, 2019
Simplifier fails with "Simplifier ticks exhausted"

#14338 · opened Oct 10, 2017 by dredozubov 8.4.1 7 Phigh Tbug Trac import compiler crash
- CLOSED
- 37
updated Jul 07, 2019
GHC 8.2.1 regression when combining GND with TypeError (solveDerivEqns: probable loop)

#14339 · opened Oct 10, 2017 by Ryan Scott 8.2.2 7 Phigh Tbug Trac import compiler crash custom type errors deriving typechecker
- CLOSED
- 6
updated Jul 07, 2019
`ghc: panic!` when loading module

#14344 · opened Oct 11, 2017 by javi 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 2
updated Jul 07, 2019
Regression - GHC 8.2.1 Consumes All Memory On Build

#14379 · opened Oct 22, 2017 by jm4games 8.2.2 7 Phigh Tbug Trac import compiler crash
- CLOSED
- 7
updated Jul 07, 2019
GHC Panic

#14388 · opened Oct 25, 2017 by aferrandi 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 3
updated Jul 07, 2019
Panic when defining an instance for (~~) [ppr_equality: homogeneity]

#14390 · opened Oct 25, 2017 by Ryan Scott 8.4.1 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 4
updated Jul 07, 2019
Compiler hangs - UdecidableInstances

#14402 · opened Oct 30, 2017 by Alexey Kuleshevich 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 6
updated Jul 07, 2019
ghc: panic! -- initTc: unsolved constraints

#14458 · opened Nov 12, 2017 by lijero 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 1
updated Jul 07, 2019
Certain do blocks cause TH to barf when ApplicativeDo is enabled

#14471 · opened Nov 16, 2017 by Alexis King 8.6.1 5 ApplicativeDo Pnormal Tbug TemplateHaskell Trac import compiler crash
- CLOSED
- 3
updated Jul 07, 2019
GHC internal error: "not in scope during TC but it passed the renamer"

#14498 · opened Nov 21, 2017 by Icelandjack 5 Pnormal ScopedTypeVariables Tbug Trac import compiler crash typechecker
- CLOSED
- 19
updated May 05, 2020
System-wide installed profile build cannot load libHSghc-prim.0.5.2.0.so

#14512 · opened Nov 22, 2017 by Tobias Dammers 5 Pnormal Tbug Trac import compiler crash
- 6
updated Jan 23, 2020
ghc: panic! (the 'impossible' happened)

#14517 · opened Nov 23, 2017 by KtorZ 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 1
updated Jul 07, 2019
GHC panic when trying to install Stack-1.5.1 with Cabal.

#14518 · opened Nov 23, 2017 by adgalad 7.10.4 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 1
updated Jul 07, 2019
LLVM's CallAnalyzer Breaks

#14528 · opened Nov 26, 2017 by Kavon Farvardin 5 LLVM backend Pnormal Tbug Trac import compiler crash
- CLOSED
- 3
updated Dec 04, 2019
Make GHC more robust against PC crashes by using atomic writes

#14533 · opened Nov 27, 2017 by Niklas Hambüchen 5 Pnormal Tbug Trac import compiler crash newcomer
- 11
updated Mar 02, 2021
Unable to parse integer-gmp's Cabal file

#14558 · opened Dec 06, 2017 by taylorfausak 5 Pnormal Tbug Ttask Trac import compiler crash core libraries
- 50
updated Jul 07, 2019
Uncurried Parameter to n-ary Function in Type Signature Causes Crash

#14568 · opened Dec 08, 2017 by nixy 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 1
updated Jul 07, 2019
Internal error when compiling TH code with profiling on Windows

#14576 · opened Dec 13, 2017 by lazac 5 GHC API Pnormal Tbug Trac import Windows compiler crash linking remote GHCi
- 6
updated Jul 07, 2019
Internal error when linker is initialized with -fexternal-interpreter set when compiling TH code with profiling

#14577 · opened Dec 13, 2017 by lazac 5 GHC API Pnormal Tbug Trac import Windows compiler crash remote GHCi
- 0
updated Jul 07, 2019
HEAD panic: tcSyntaxOp "noSyntaxExpr"

#14591 · opened Dec 17, 2017 by tianxiaogu 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 2
updated Jul 07, 2019
unsolved constraints, panic during compilation

#14612 · opened Dec 24, 2017 by msk 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 2
updated Jul 07, 2019
panic! initTc: unsolved constraints

#14616 · opened Dec 25, 2017 by w-j-w 8.2.3 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 1
updated Jul 07, 2019
capi panic (toCType Int#)

#14624 · opened Jan 01, 2018 by tianxiaogu 5 Pnormal Tbug Trac import compiler crash
- 5
updated Jul 07, 2019
qAddTopDecls: can't convert top-level declarations

#14627 · opened Jan 02, 2018 by tianxiaogu 8.8.1 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 7
updated Oct 08, 2020
Panic (No skolem Info) in GHCi

#14628 · opened Jan 02, 2018 by Andreas Klebinger 5 GHCi Pnormal Tbug Trac import compiler crash debugger
- CLOSED
- 2
- 4
updated Apr 13, 2020
GHC 8.2.2 crashes when building the haskell-gi sample code

#14631 · opened Jan 03, 2018 by muscar 5 Pnormal Tbug Trac import compiler crash
- CLOSED
- 5
updated Jul 07, 2019
Simplifier Ticks Exhausted when compiling with profiling

#14637 · opened Jan 04, 2018 by cfhammill 5 Pnormal Tbug Trac import compiler crash compiler perf simplifier
- 1
- 25
updated Mar 11, 2021
"unresolved constraints" when import and main missing

#14639 · opened Jan 05, 2018 by bainewedlock 5 GHCi Pnormal Tbug Trac import compiler crash
- CLOSED
- 1
updated Jul 07, 2019
GHC panics in incomplete program

#14641 · opened Jan 07, 2018 by mmc 3 Plow Tbug Trac import compiler crash
- CLOSED
- 2
updated Jul 07, 2019
ghc panic: mergeSATInfo

#14649 · opened Jan 08, 2018 by tianxiaogu 5 Pnormal Tbug Trac import compiler crash static argument transformation
- 16
updated Mar 26, 2021