Issues · Glasgow Haskell Compiler / GHC

New issue

Add gcoerceWith to Data.Type.Coercion

#12493 · opened Aug 15, 2016 by Ryan Scott 8.2.1 5 Pnormal Trac import core libraries feature request
- CLOSED
- 2
updated Jul 07, 2019
Make runtime linker be able to find POSIX functions under their deprecated name.

#12497 · opened Aug 18, 2016 by Tamar Christina 8.0.2 5 Pnormal RTS Trac import feature request linking newcomer
- CLOSED
- 5
updated Jul 07, 2019
Support multiple library import libs

#12499 · opened Aug 18, 2016 by Tamar Christina 8.4.1 5 Pnormal RTS Trac import feature request linking
- CLOSED
- 3
updated Jul 07, 2019
template-haskell's Language.Haskell.Syntax module should be Trustworthy

#12511 · opened Aug 21, 2016 by Bertram Felgenhauer 8.2.1 5 Pnormal Trac import feature request newcomer
- CLOSED
- 3
updated Jul 07, 2019
RFC: Allow prefixing result evaluated at GHCi prompt

#12524 · opened Aug 23, 2016 by Icelandjack 0 GHCi Plow Trac import feature request
- CLOSED
- 1
updated Jul 07, 2019
Template Haskell support for TypeApplications

#12530 · opened Aug 24, 2016 by Ryan Scott 8.2.1 5 Pnormal TemplateHaskell Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
Holes should be representation-polymorphic

#12531 · opened Aug 24, 2016 by mniip 8.0.2 5 Pnormal Trac import feature request typechecker
- CLOSED
- 5
updated Jul 07, 2019
Improved warning for redundant-constraints

#12544 · opened Aug 26, 2016 by Eric Crockett 5 Pnormal Trac import feature request
- CLOSED
- 3
updated Jul 07, 2019
Allow the user to pick the address that the RTS reserves for the heap

#12573 · opened Sep 05, 2016 by bitonic 8.0.2 5 Pnormal RTS Trac import feature request
- CLOSED
- 6
updated Jul 07, 2019
HSOC Eventlog live profiling

#12582 · opened Sep 09, 2016 by NCrashed 8.2.1 5 Pnormal RTS Trac import feature request
- CLOSED
- 6
updated Jul 07, 2019
Linux (ELF) Support for "ghc -static -shared"

#12606 · opened Sep 20, 2016 by Travis Whitaker ⊥ 5 Pnormal Trac import feature request
- CLOSED
- 1
updated Jul 07, 2019
ghc-pkg: Allow unregistering multiple packages in one call

#12637 · opened Sep 28, 2016 by Niklas Hambüchen 8.2.1 5 Pnormal Trac import feature request
- CLOSED
- 5
updated Jul 11, 2019
Permit abstract data types in signatures that don't have kind *

#12679 · opened Oct 10, 2016 by Edward Z. Yang 3 Plow Trac import backpack feature request typechecker
- CLOSED
- 7
updated Jul 07, 2019
Eta reduce type synonyms when possible

#12701 · opened Oct 14, 2016 by Edward Z. Yang 0 Plow Trac import backpack feature request typechecker
- CLOSED
- 2
updated Jul 07, 2019
GHC should be able to warn on unsafe CPP usage

#12752 · opened Oct 22, 2016 by erikd 8.2.1 5 Pnormal Trac import feature request
- CLOSED
- 3
updated Jul 07, 2019
Be able to pin a thread to a numa node without fixing a capabiity

#12764 · opened Oct 25, 2016 by darshan 8.2.1 5 Pnormal RTS Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
Allow runtime-representation polymorphic data families

#12766 · opened Oct 26, 2016 by Icelandjack 8.10.1 5 Pnormal Trac import TypeInType UnliftedNewtypes feature request
- CLOSED
- 3
updated Jul 07, 2019
Pattern synonyms for Cont, Writer, Reader, State, ...

#12767 · opened Oct 27, 2016 by Icelandjack 5 Pnormal PatternSynonyms Trac import core libraries feature request
- CLOSED
- 10
updated Jul 07, 2019
(type f1 ~> f2 = forall a. f1 a -> f2 a) to core libraries

#12772 · opened Oct 27, 2016 by Icelandjack 5 Pnormal Trac import feature request
- CLOSED
- 8
updated Jul 07, 2019
Add more types to System.Posix.Types

#12795 · opened Nov 02, 2016 by DanielG 8.2.1 5 Pnormal Trac import core libraries feature request
- CLOSED
- 4
updated Jul 07, 2019
Generalise type of asProxyTypeOf

#12805 · opened Nov 04, 2016 by tomjaguarpaw 8.2.1 5 Pnormal Trac import core libraries feature request newcomer
- CLOSED
- 6
updated Jul 07, 2019
GHC is too verbose by default (source/object paths)

#12807 · opened Nov 04, 2016 by Sylvain Henry 5 Pnormal Trac import feature request
- CLOSED
- 5
updated Jul 07, 2019
Generalize functions from Data.Maybe (‘catMaybes’, ‘mapMaybe’)

#12828 · opened Nov 12, 2016 by Icelandjack 0 Plow Trac import core libraries feature request
- CLOSED
- 4
updated Jul 07, 2019
GHCi

#12833 · opened Nov 13, 2016 by Icelandjack 5 Pnormal Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
Allow completely disabling +RTS options parsing

#12870 · opened Nov 22, 2016 by Niklas Hambüchen 8.4.1 5 Pnormal Trac import feature request
- CLOSED
- 12
updated Jul 07, 2019
Constant propagation with basic unboxed arithmetic instructions

#12877 · opened Nov 24, 2016 by Sylvain Henry 8.2.1 5 Pnormal Trac import feature request
- CLOSED
- 6
updated Jul 07, 2019
Use gold linker by default if available on ELF systems

#12878 · opened Nov 25, 2016 by dobenour 8.2.1 5 Pnormal Trac import compiler perf driver feature request
- CLOSED
- 2
updated Jul 07, 2019
‘Identity instance’: Outputable SDoc

#12888 · opened Nov 28, 2016 by Icelandjack 5 GHC API Pnormal Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
MultiParamTypeClasses + ExtendedDefaultRules

#12923 · opened Dec 04, 2016 by amindfv 8.2.1 5 Pnormal Trac import feature request
- CLOSED
- 20
updated Feb 12, 2020
Pattern Synonyms in Typeclasses

#12924 · opened Dec 04, 2016 by xcmw 5 Pnormal Trac import feature request
- CLOSED
- 1
updated Jul 07, 2019
Too easy to trigger CUSK condition using TH

#12928 · opened Dec 05, 2016 by Vladislav Zavialov 7 Phigh Trac import feature request ghc proposal typechecker
- CLOSED
- 15
updated Jul 07, 2019
Give -fexpose-all-unfoldings the same semantics as INLINABLE on each function

#12963 · opened Dec 12, 2016 by Mikolaj Konarski 5 Pnormal Trac import feature request
- CLOSED
- 5
updated Jul 07, 2019
Rebindable enumFrom etc. syntax

#12969 · opened Dec 13, 2016 by cactus 5 Pnormal RebindableSyntax Trac import feature request typechecker
- CLOSED
- 4
updated May 03, 2020
Add default implementation for Bits.bitSize

#12970 · opened Dec 13, 2016 by txnull 8.6.1 7 Phigh Trac import core libraries feature request
- CLOSED
- 20
updated Jul 07, 2019
Missed constant folding oportunities (associativity)

#12984 · opened Dec 15, 2016 by Sylvain Henry 5 Pnormal Trac import feature request
- CLOSED
- 4
updated Jul 07, 2019
Join points

#12988 · opened Dec 15, 2016 by lukemaurer 8.2.1 5 Pnormal Trac import feature request join points
- CLOSED
- 3
updated Jul 07, 2019
Module and export level signature thinning in Backpack

#12994 · opened Dec 17, 2016 by Edward Z. Yang 5 Pnormal Trac import backpack feature request typechecker
- CLOSED
- 2
updated Jul 07, 2019
educational purpose

#13036 · opened Dec 25, 2016 by vanto 5 GHCi Pnormal Trac import feature request
- CLOSED
- 3
updated Jul 07, 2019
Single-Stepping evaluation in GHCi

#13037 · opened Dec 25, 2016 by vanto 5 GHCi Pnormal Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
realToFrac into Complex Double has no specialization

#13040 · opened Dec 28, 2016 by takano-akio 8.2.1 5 Pnormal Trac import core libraries feature request runtime perf
- CLOSED
- 2
updated Jul 07, 2019
Holes don't work infix

#13050 · opened Dec 31, 2016 by Icelandjack 8.2.1 5 Pnormal Trac import feature request
- CLOSED
- 6
updated Jul 07, 2019
time after evaluation

#13070 · opened Jan 05, 2017 by vanto 8.0.2 5 GHCi Pnormal Trac import feature request
- CLOSED
- 6
updated Jul 07, 2019
Num a => Num (Down a)

#13097 · opened Jan 10, 2017 by Icelandjack 8.4.1 5 Pnormal Trac import core libraries feature request
- CLOSED
- 7
updated Jul 07, 2019
Template Haskell support for Pattern Synonym's Complete Pragma

#13098 · opened Jan 10, 2017 by magesh 8.2.1 5 Pnormal Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
Derived functor instance for void types handles errors badly

#13117 · opened Jan 14, 2017 by David Feuer 8.2.1 5 Pnormal Trac import deriving feature request
- CLOSED
- 7
updated Jul 07, 2019
Support for hexadecimal floats

#13126 · opened Jan 14, 2017 by Levent Erkök 5 Pnormal Trac import feature request ghc proposal
- CLOSED
- 3
updated Jul 07, 2019
Warn about home module not listed on command line

#13129 · opened Jan 15, 2017 by Yuras 8.2.1 5 Pnormal Trac import feature request
- CLOSED
- 3
updated Jul 07, 2019
Handle subtyping relation for roles in Backpack

#13140 · opened Jan 17, 2017 by Edward Z. Yang 8.4.1 5 Pnormal Trac import backpack feature request hs-boot typechecker
- CLOSED
- 14
updated Jul 07, 2019
Pattern synonyms should use type annotation information when typechecking

#13158 · opened Jan 20, 2017 by Alexis King 5 Pnormal Trac import feature request typechecker
- CLOSED
- 4
updated Jul 07, 2019
Allow visible type application with pattern synonyms in patterns

#13159 · opened Jan 20, 2017 by Alexis King 5 Pnormal Trac import feature request
- CLOSED
- 4
updated Jul 07, 2019
Generalize type of runRW#

#13178 · opened Jan 24, 2017 by David Feuer 8.2.1 5 Pnormal Trac import feature request
- CLOSED
- 5
updated Jul 07, 2019
Introduce GHC.TypeNats module with natVal

#13181 · opened Jan 24, 2017 by Oleg Grenrus 8.2.1 5 Pnormal Trac import feature request
- CLOSED
- 3
updated Jul 07, 2019
Add a flag to dump compiler output as JSON

#13190 · opened Jan 26, 2017 by Matthew Pickering 8.2.1 5 Pnormal Trac import feature request
- CLOSED
- 6
updated Jul 07, 2019
Make liftA2 a method of Applicative

#13191 · opened Jan 27, 2017 by David Feuer 8.2.1 5 Pnormal Trac import core libraries feature request
- CLOSED
- 2
updated Jul 07, 2019
Support abs as a primitive operation on floating point numbers.

#13212 · opened Jan 31, 2017 by Dominic 5 Pnormal Trac import feature request newcomer
- CLOSED
- 5
updated Jul 07, 2019
Extend TH with addModCStub

#13237 · opened Feb 07, 2017 by Facundo Domínguez 8.2.1 5 Pnormal TemplateHaskell Trac import feature request
- CLOSED
- 20
updated Jul 07, 2019
Make it easier to find builds we may want to cancel

#13240 · opened Feb 08, 2017 by David Feuer 8.6.1 5 Pnormal Trac import feature request infrastructure
- CLOSED
- 7
updated Jul 07, 2019
Default signature check can be quite onerous

#13249 · opened Feb 09, 2017 by Ben Gamari 8.2.1 5 Pnormal Trac import feature request typechecker
- CLOSED
- 6
updated Jul 07, 2019
Warn on out-of-range literals in pattern matches too

#13256 · opened Feb 09, 2017 by rwbarton 8.8.1 5 Pnormal Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
Compact API design improvements

#13298 · opened Feb 19, 2017 by Edward Z. Yang 8.2.1 5 Pnormal Trac import compact normal forms feature request
- CLOSED
- 4
updated Jul 07, 2019
Allow PartialTypeSignatures in the instance context of a standalone deriving declaration

#13324 · opened Feb 23, 2017 by Ryan Scott 8.6.1 5 Pnormal Trac import deriving feature request typechecker
- CLOSED
- 9
updated Jul 07, 2019
Implement `-ferror-limit` for GHC

#13326 · opened Feb 23, 2017 by coopercm 8.2.1 5 Pnormal Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
Consider making throw and throwIO strict

#13348 · opened Feb 27, 2017 by David Feuer 8.4.1 5 Pnormal Trac import core libraries exceptions feature request
- CLOSED
- 1
updated Jul 07, 2019
Derive superclasses automatically if possible

#13368 · opened Mar 03, 2017 by Icelandjack 5 Pnormal Trac import feature request
- CLOSED
- 4
updated Jul 07, 2019
Multiple pattern synonym declarations for one signature

#13449 · opened Mar 19, 2017 by Icelandjack 5 Pnormal PatternSynonyms Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
Better parse error for empy character literal

#13450 · opened Mar 19, 2017 by parsonsmatt 8.6.1 5 Pnormal Trac import error messages feature request parser
- CLOSED
- 5
updated Jul 07, 2019
Deriving Functor / Foldable / Traversable for co-pattern type

#13463 · opened Mar 21, 2017 by Icelandjack 3 Plow Trac import feature request
- CLOSED
- 3
updated Jul 07, 2019
Data.List.NonEmpty.{unfold,unfoldr} differences

#13478 · opened Mar 25, 2017 by Icelandjack 8.2.1 7 Phigh Trac import core libraries feature request
- CLOSED
- 6
updated Jul 07, 2019
More storable instances?

#13498 · opened Mar 30, 2017 by wyager 5 Pnormal Trac import core libraries feature request
- CLOSED
- 5
updated Jul 07, 2019
instance Alternative ZipList

#13520 · opened Apr 03, 2017 by Icelandjack 8.4.1 5 Pnormal Trac import bug core libraries feature request newcomer
- CLOSED
- 12
updated Nov 20, 2019
Make it easier to use the gold linker

#13541 · opened Apr 07, 2017 by Ben Gamari 8.2.1 10 Phighest Trac import feature request
- CLOSED
- 28
updated Feb 17, 2020
error found hole: _ is not appropriate in the following case

#13557 · opened Apr 10, 2017 by vanto 5 Pnormal Trac import error messages feature request
- CLOSED
- 6
updated Jul 07, 2019
Pattern syntax in expression context must be clarified

#13602 · opened Apr 22, 2017 by vanto 5 Pnormal Trac import error messages feature request
- CLOSED
- 4
updated Jul 07, 2019
Add integer division to GHC.TypeLits

#13652 · opened May 05, 2017 by Alexey Vagarenko 5 Pnormal Trac import feature request
- CLOSED
- 7
updated Jul 07, 2019
Optimize casMutVar# for single-threaded runtime

#13654 · opened May 06, 2017 by David Feuer 8.4.1 5 Pnormal RTS Trac import feature request runtime perf
- CLOSED
- 4
updated Jul 07, 2019
Identifier "Otherwise" in guarded equation can crash a program

#13669 · opened May 09, 2017 by vanto 5 Pnormal Trac import feature request
- CLOSED
- 8
updated Jul 07, 2019
Pattern match on LHS of pattern synonym declaration

#13672 · opened May 09, 2017 by Icelandjack 5 Pnormal PatternSynonyms Trac import feature request
- CLOSED
- 1
updated Jul 07, 2019
Use epoll rather than poll where appropriate

#13683 · opened May 10, 2017 by David Feuer 8.4.1 5 Pnormal Trac import core libraries feature request
- CLOSED
- 4
updated Jul 07, 2019
Allow splices in definition of pattern synonym

#13688 · opened May 11, 2017 by Ben Gamari 8.4.1 5 Pnormal PatternSynonyms TemplateHaskell Trac import feature request
- CLOSED
- 3
updated Jul 07, 2019
GHCi command listing possible type class instances

#13700 · opened May 15, 2017 by Icelandjack 5 Pnormal Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
-main-is flag should change exports in default module header

#13704 · opened May 16, 2017 by cdsmith@twu.net 8.6.2 5 Pnormal Trac import feature request
- CLOSED
- 10
updated Jul 07, 2019
ghci messages like "Ok, modules loaded: ..." are impractical for large sets of modules

#13706 · opened May 16, 2017 by waldmann@imn.htwk-leipzig.de 5 GHCi Pnormal Trac import error messages feature request
- CLOSED
- 2
updated Jul 07, 2019
Guard pages instead of Heap/Stack limit checks in Cmm

#13714 · opened May 17, 2017 by varosi 5 Pnormal Trac import feature request
- CLOSED
- 3
updated Jul 07, 2019
diagnostic colors: differentiate between message head and message body

#13718 · opened May 18, 2017 by Bertram Felgenhauer 8.2.1 5 Pnormal Trac import feature request
- CLOSED
- 4
updated Jul 07, 2019
Are you for or against writing "otherwise" as a keyword?

#13757 · opened May 26, 2017 by vanto 5 Pnormal Trac import error messages feature request
- CLOSED
- 12
updated Jul 07, 2019
Creating a ticket named "New proposal" in GHC Trac.

#13764 · opened May 28, 2017 by vanto 5 Pnormal Trac import feature request infrastructure
- CLOSED
- 2
updated Jul 07, 2019
更合理的instance Monad []

#13783 · opened Jun 03, 2017 by zaoqi 5 Pnormal Trac import core libraries feature request incorrect runtime result
- CLOSED
- 3
updated Jul 07, 2019
Allow building using distro GCC on Windows

#13792 · opened Jun 06, 2017 by Tamar Christina 8.4.1 5 Pnormal Trac import feature request
- CLOSED
- 3
updated Jul 07, 2019
eta reduction in GHCi for an educational purpose

#13811 · opened Jun 10, 2017 by vanto 5 GHCi Pnormal Trac import feature request
- CLOSED
- 1
updated Jul 07, 2019
Support Windows big-obj format

#13815 · opened Jun 11, 2017 by Tamar Christina 8.4.1 5 Pnormal Trac import feature request
- CLOSED
- 3
updated Jul 07, 2019
ADOPT pragma for silencing orphan instances warnings per instance

#13841 · opened Jun 17, 2017 by Moritz Kiefer 5 Pnormal Trac import feature request
- CLOSED
- 6
updated Jul 07, 2019
TypeApplications and record syntax don't mix

#13853 · opened Jun 20, 2017 by Ryan Scott 5 Pnormal Trac import TypeApplications feature request
- CLOSED
- 7
updated Jun 08, 2020
Add to Data.Proxy a utility function proxy :: a -> Proxy a

#13865 · opened Jun 23, 2017 by louispan 8.2.1 5 Pnormal Trac import core libraries feature request
- CLOSED
- 3
updated Jul 07, 2019
Implement SIMD support in NCG

#13878 · opened Jun 26, 2017 by Ben Gamari 5 NCG backend Pnormal Trac import feature request
- CLOSED
- 1
updated Jul 07, 2019
Lift the "Illegal polymorphic type" restriction on type families

#13901 · opened Jun 30, 2017 by Ryan Scott 5 Pnormal Trac import TypeFamilies feature request typechecker
- CLOSED
- 1
- 6
updated Jul 07, 2019
自動選擇實例

#13920 · opened Jul 04, 2017 by zaoqi 5 Pnormal Trac import feature request
- CLOSED
- 6
updated Jul 07, 2019
自動選擇實例

#13946 · opened Jul 09, 2017 by zaoqi 5 Pnormal Trac import feature request
- CLOSED
- 2
updated Jul 07, 2019
Backpack does not handle unlifted types

#13955 · opened Jul 10, 2017 by Andrew Martin 8.4.1 3 Plow Trac import backpack feature request levity polymorphism
- CLOSED
- 6
updated Jul 07, 2019
G

#14004 · opened Jul 21, 2017 by zaoqi 5 Pnormal Trac import feature request
- CLOSED
- 15
updated Jul 07, 2019
CI builds for integer-simple variant of GHC for Windows

#14007 · opened Jul 21, 2017 by varosi 5 Pnormal Trac import Windows feature request ghc-bignum integer-simple
- CLOSED
- 8
updated Oct 07, 2020