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Ticket Summary Status Owner Priority Milestone Component
#4259 Relax restrictions on type family instance overlap new normal 7.12.1 Compiler (Type checker)
#4370 Bring back monad comprehensions new normal Compiler
#4385 Type-level natural numbers new diatchki normal 7.12.1 Compiler (Type checker)
#4470 Loop optimization: identical counters new normal 7.12.1 Compiler
#4894 Missing improvement for fun. deps. new normal Compiler (Type checker)
#4900 Consider usage files in the GHCi recompilation check new normal 7.12.1 Compiler
#4937 Remove indirections caused by sum types, such as Maybe new normal 7.12.1 Compiler
#5075 CPR optimisation for sum types if only one constructor is used new simonpj normal 7.12.1 Compiler
#5218 Add unpackCStringLen# to create Strings from string literals new thoughtpolice normal 7.12.1 Compiler
#5239 Em-dash for "--" with UnicodeSyntax. new normal 7.12.1 Compiler (Parser)
#5324 Locally-scoped RULES new normal Compiler
#5344 CSE should look through coercions new simonpj normal Compiler
#5392 Warnings about impossible MPTCs would be nice new normal 7.12.1 Compiler
#5416 Local modules and Template Haskell declaration splices new normal Template Haskell
#5429 Docase notation as GHC extension new tomasp normal 7.12.1 Compiler
#5467 Template Haskell: support for Haddock comments new normal 7.12.1 Template Haskell
#5476 Cap memory usage for one thread without disrupting other threads new normal Runtime System
#5542 also parse class/instance declarations as "HEAD <= CONTEXT where" new normal 7.12.1 Compiler (Parser)
#5556 Support pin-changing on ByteArray#s new normal 7.12.1 Compiler
#5590 "guarded instances": instance selection can add extra parameters to the class new simonpj normal 7.12.1 Compiler (Type checker)
#5619 Shorter qualified import statements new normal 7.12.1 Compiler
#5672 parBufferWHNF could be less subtle new duncan normal 7.12.1 Core Libraries
#5813 Offer a compiler warning for failable pattern matches new normal 7.12.1 Compiler
#5823 FFI and CAPI needs {-# INCLUDE #-} back? new normal 7.12.1 Compiler
#5834 Allow both INLINE and INLINABLE for the same function new normal 7.12.1 Compiler
#5835 Make better use of known dictionaries new normal 7.12.1 Compiler
#5910 Holes with other constraints new normal 7.12.1 Compiler (Type checker)
#5927 A type-level "implies" constraint on Constraints new normal 7.12.1 Compiler (Type checker)
#5972 option to suppress (Monomorphic) record selector functions new adamgundry normal 7.12.1 Compiler
#5985 Type operators are not accepted as variables in contexts new normal 7.12.1 Compiler
#6018 Injective type families new jstolarek normal 7.12.1 Compiler
#6030 Typeclass constraint should pick the OverloadedString type. new normal Compiler
#6077 Respect XDG_CONFIG_HOME new normal None
#6089 Allow declaration splices inside declaration brackets new simonpj normal 7.12.1 Template Haskell
#7048 Add the ability to statically define a `FunPtr` to a haskell function new normal 7.12.1 Compiler
#7081 arrow analogs of lambda case and multi-way if new normal 7.12.1 Compiler
#7104 Add tryWriteTBQueue to Control.Concurrent.STM.TBQueue new simonmar normal 7.12.1 Core Libraries
#7105 Better names for derived SCCs of instances new simonmar normal 7.12.1 Profiling
#7140 Allow type signature in export list new normal 7.12.1 Compiler (Type checker)
#7152 Add flag to configure that skips overwriting of symlinks on install new thoughtpolice normal 7.12.1 Build System
#7158 GHCi commands case insensitive new normal 7.12.1 GHCi
#7169 Warning for incomplete record field label used as function new normal 7.12.1 Compiler
#7181 Add documentation on heap-profile file format. new normal 7.12.1 Documentation
#7204 Use a class to control FFI marshalling new normal 7.12.1 Compiler
#7253 Top-level bindings in ghci new normal 7.12.1 GHCi
#7261 ghci's :info and :browse break encapsulation new normal GHCi
#7275 Give more detailed information about PINNED data in a heap profile new normal 7.12.1 Compiler
#7283 Specialise INLINE functions new normal 7.12.1 Compiler
#7285 mkWeakMVar is non-compositional new ekmett normal 7.12.1 Core Libraries
#7291 hp2ps should cope with incomplete data new normal Profiling
#7300 Allow CAFs kept reachable by FFI to be forcibly made unreachable for GC new normal 7.12.1 Compiler (FFI)
#7330 Data Parallel Haskell (DPH) isn't usable yet. new benl normal 7.12.1 Data Parallel Haskell
#7331 Allow the evaluation of declaration splices in GHCi new normal 7.12.1 GHCi
#7335 Need for extra warning pragma for accidental pattern matching in do blocks new normal 7.12.1 Compiler
#7337 GHC does not generate great code for bit-level rotation new normal 7.12.1 Compiler (NCG)
#7395 DefaultSignatures conflict with default implementations new normal 7.12.1 Compiler
#7401 Can't derive instance for Eq when datatype has no constructor, while it is trivial do do so. new monoidal normal 7.12.1 Compiler
#7413 runghc (runhaskell) should be able to reload code on editing new normal 7.12.1 Compiler
#7414 plugins always trigger recompilation new normal 7.12.1 Compiler
#7459 deriving Generic does not work with TypeLits new dreixel normal 7.12.1 Compiler
#7492 Generic1 deriving: Can we replace Rec1 f with f :.: Par1? new dreixel normal 7.12.1 Compiler
#7494 Allow compatible type synonyms to be the return type of a GADT data constructor. new normal 7.12.1 Compiler (Type checker)
#7495 generalizing overloaded list syntax to Sized Lists, HLists, HRecords, etc new carter normal 7.12.1 Compiler
#7606 Stride scheduling for Haskell threads with priorities new ezyang normal 7.12.1 Runtime System
#7635 SafeHaskell implying other options new normal 7.12.1 Compiler
#7637 split-objs not supported for ARM new normal 7.12.1 Compiler
#7647 UNPACK polymorphic fields new normal 7.12.1 Compiler
#7662 Improve GC of mutable objects new normal Runtime System
#7741 Add SIMD support to x86/x86_64 NCG new normal 7.12.1 Compiler (NCG)
#7746 Support loading/unloading profiled objects from a profiled executable new ezyang normal 7.12.1 Runtime System
#7808 data families and TH names do not mix well (e.g. cannot use TH deriving) new normal 7.12.1 Template Haskell
#7845 RebindableSyntax should allow rebinding tuples and lists new normal Compiler
#7860 Add more bit fiddling functions to 'integer-gmp' new normal Core Libraries
#7870 Compilatio​n errors break the complexity encapsulat​ion on DSLs, impairs success in industry new normal Compiler (Type checker)
#7952 Can cost-centre annotations be included in -ddump-simpl? new normal Compiler
#7961 Remove restrictions on promoting GADT's new normal Compiler
#8012 Warn when using Enum instance for Float or Double new normal Compiler
#8015 Show warning when file-header pragma is used after module keyword new normal Compiler
#8043 Feature Request : Qualified module exports new normal Compiler
#8045 Move I/O manager benchmarks into the GHC tree new normal NoFib benchmark suite
#8046 Make the timer management scale better across multicore new normal Compiler
#8057 Warn when supplying version number to package-qualified import new normal Compiler
#8061 Support for Complex Double in Foreign Function Interface new normal Compiler
#8064 Warning out when "undefined" value has been used. new normal Compiler
#8086 Minimal install for GHC new normal Compiler
#8099 Alternate syntax for indicating when a function is "fully applied" for purposes of inlining new normal Compiler
#8107 need types to express constant argument for primop correctness new carter normal 7.12.1 Compiler
#8109 Type family patterns should support as-patterns. new normal Compiler
#8165 Use GeneralizedNewtypeDeriving to automatically create associated type families new normal Compiler (Type checker)
#8171 Extending ExtendedDefaultRules new normal Compiler
#8199 Get rid of HEAP_ALLOCED new ezyang normal 7.12.1 Compiler
#8206 Add support for Portable Native Client new Alex Sayers normal Compiler
#8220 Macros / functions for source location new normal Compiler
#8252 prefetch# isn't as general as it should be (currently the general version isn't type safe) new normal 7.12.1 Compiler
#8263 allow duplicate deriving / standalone deriving new normal Compiler
#8288 add idris style EDSL support for deep embedding lambdas new normal 7.12.1 Compiler
#8300 split-objs doesn't split on LLVM new normal Compiler (LLVM)
#8311 suboptimal code generated for even :: Int -> Bool by NCG (x86, x86_64) new normal Compiler (NCG)
#8321 improve basic block layout on LLVM backend by predicting stack/heap checks new rwbarton normal 7.12.1 Compiler (LLVM)
#8325 Pattern guards in anonymous functions new normal Compiler
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