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Ticket Summary Status Owner Priority Milestone Component
#7492 Generic1 deriving: Can we replace Rec1 f with f :.: Par1? new dreixel normal 7.12.1 Compiler
#8473 Generate table of cost-centre numbers with source locations new normal Profiling
#3205 Generalized isomorphic deriving new normal Compiler
#9252 Generalize hs-boot files to be more like module signatures new ezyang normal Compiler
#9360 GHCi: Behave nicely on `-e`, like `ghc` and other programs new normal GHCi
#9259 GHCi should list its available command line options new kolmodin normal Driver
#3615 GHCi doesn't allow the use of imported data contructors new normal GHCi
#7158 GHCi commands case insensitive new normal 7.12.1 GHCi
#9622 GHCi command to solve a constraint new normal Compiler (Type checker)
#4329 GHC.Conc modifyTVar primitive new ekmett low 7.12.1 Core Libraries
#8429 GHC.Base.{breakpoint, breakpointCond} do nothing new iand675 normal 7.12.1 Compiler
#1192 GHC-only IOErrorType constructors, and is*Error(Type) functions new low Compiler
#9938 GHC's link step needs to be told which packages to link new normal Compiler
#9183 GHC shouldn't expand constraint synonyms new normal Compiler
#9987 GHC refuses to compile a file that starts with a Byte Order Mark (BOM) new low Compiler
#9498 GHC links against unversioned .so files new low Compiler (FFI)
#3517 GHC has lots of extra hidden IOErrorType values new low Core Libraries
#9685 GHC fails to build with mingw32-make on Windows new gintas low Build System
#7337 GHC does not generate great code for bit-level rotation new normal 7.12.1 Compiler (NCG)
#8673 GHC could generate GADT record selectors in more cases new normal Compiler
#8930 GHC API: List of available Pragmas new normal GHC API
#9846 GHC --make should also look for .hi, not only for .hs new normal Compiler
#2465 Fusion of recursive functions new low Compiler
#4092 Floating point manipulation : ulp and coerce IEEE-754 Double# into Word64# new normal 7.12.1 Compiler
#3464 Find import declaration importing a certain function new low 7.12.1 GHCi
#8043 Feature Request : Qualified module exports new normal Compiler
#9197 FFI types should be usable in foreign import decls without revealing representations new normal Compiler (FFI)
#5823 FFI and CAPI needs {-# INCLUDE #-} back? new normal 7.12.1 Compiler
#8171 Extending ExtendedDefaultRules new normal Compiler
#8679 Extend FunD data constructor with information about type signature new normal Template Haskell
#9946 Expose the source location of template-haskell Names new low Compiler
#9743 Expose ghc-bin code as a library new normal 7.12.1 Compiler
#9970 Export more types in GHC.RTS.Flags new normal 7.12.1 libraries/base
#8779 Exhaustiveness checks for pattern synonyms new normal Compiler (Type checker)
#2708 Error message should suggest UnboxedTuples language extension new low Compiler (Parser)
#2614 Enumeration of values for `Sys.Info.os`, `Sys.Info.arch` new mjg low 7.12.1 Core Libraries
#3122 Enhance --info new duncan lowest 7.12.1 Compiler
#9182 Empty case analysis for function clauses new low Compiler
#5082 Emit warnings when conflicting flags are supplied new low Compiler
#2333 Emit a warning if an INLINE function is a loop breaker new lowest 7.12.1 Compiler
#5239 Em-dash for "--" with UnicodeSyntax. new normal 7.12.1 Compiler (Parser)
#8353 Easy way to defer type errors new normal GHCi
#10076 Don't suppress warnings in the presence of errors new normal Compiler
#9291 Don't reconstruct sum types if the type subtly changes new normal Compiler
#5429 Docase notation as GHC extension new tomasp normal 7.12.1 Compiler
#9427 Do finer-grained dependency analysis to infer more general kinds on type/class declarations new normal Compiler (Type checker)
#9748 Disambiguate IO actions in GHCi with :set +t new zudov low GHCi
#8560 Derive some generic representation for GADTs new normal Compiler (Type checker)
#4879 Deprecate exports new high 7.12.1 Compiler
#10087 DefaultSignatures: error message mentions internal name new normal Compiler (Type checker)
#7395 DefaultSignatures conflict with default implementations new normal 7.12.1 Compiler
#3583 Default view patterns new normal Compiler
#8404 Default to turning on architecture specific optimizations in the codegen new normal Compiler (NCG)
#436 Declare large amounts of constant data new normal Compiler
#9795 Debug.Trace.trace is too strict new normal 7.12.1 libraries/base
#10084 Data.List should have a takeLastN function new normal libraries/base
#10014 Data.Array.Base.elems needlessly calls bounds. new ekmett normal Core Libraries
#7330 Data Parallel Haskell (DPH) isn't usable yet. new benl normal 7.12.1 Data Parallel Haskell
#9819 Create typesafe method of obtaining dictionary types from class definitions, and constraint objects from dictionary types new normal Compiler
#9350 Consider using xchg instead of mfence for CS stores new normal Compiler (NCG)
#4900 Consider usage files in the GHCi recompilation check new normal 7.12.1 Compiler
#3577 Complete support for Data Parallel Haskell new rl normal Data Parallel Haskell
#9244 Compiler could warn about type variable shadowing, and hint about ScopedTypeVariables new normal Compiler
#7870 Compilatio​n errors break the complexity encapsulat​ion on DSLs, impairs success in industry new normal Compiler (Type checker)
#3744 Comparisons against minBound/maxBound not optimised for (Int|Word)(8|16|32) new low 7.12.1 Compiler
#9865 Comonads in base library new ekmett normal 7.12.1 Core Libraries
#10116 Closed type families: Warn if it doesn't handle all cases new normal Compiler
#5476 Cap memory usage for one thread without disrupting other threads new normal Runtime System
#9118 Can't eta-reduce representational coercions new normal 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
#7952 Can cost-centre annotations be included in -ddump-simpl? new normal Compiler
#9120 Cache intermediate powers new ekmett normal Core Libraries
#5344 CSE should look through coercions new simonpj normal Compiler
#9441 CSE should deal with letrec new normal Compiler
#3557 CPU Vector instructions in GHC.Prim new normal Data Parallel Haskell
#5075 CPR optimisation for sum types if only one constructor is used new simonpj normal 7.12.1 Compiler
#860 CPP fails when a macro is used on a line containing a single quote character new lowest Compiler
#989 Build GHC on Windows using Microsoft toolchain new low Build System
#1574 Broken link testing new lowest 7.12.1 Documentation
#4370 Bring back monad comprehensions new normal Compiler
#9342 Branchless arithmetic operations new normal 7.12.1 Compiler (CodeGen)
#9661 Branchless ==# is compiled to branchy code new normal Compiler
#4102 Bit manipulation built-ins new ekmett normal 7.12.1 Core Libraries
#2600 Bind type variables in RULES new simonpj lowest 7.12.1 Compiler
#7105 Better names for derived SCCs of instances new simonmar normal 7.12.1 Profiling
#2598 Avoid excessive specialisation in SpecConstr new lowest 7.12.1 Compiler
#3870 Avoid Haddock-links to the Prelude new lowest 7.12.1 Documentation
#1420 Automatic heap profile intervals new lowest 7.12.1 Profiling
#1830 Automatic derivation of Lift new normal Template Haskell
#8161 Associated type parameters that are more specific than the instance header new low Compiler (Type checker)
#8583 Associated pattern synonyms new normal Compiler
#3545 As-patterns for type signatures new normal Compiler (Type checker)
#2180 Any installed signal handler stops deadlock detection, but XCPU never happens in a deadlock new Baughn normal Runtime System
#9030 An async exception handler that blocks throwTo until handler finishes running new normal Compiler
#8605 Alternative, guard-like syntax for view patterns new normal Compiler
#9429 Alternative to type family Any new normal Compiler
#8920 Alternative GADT syntax new normal 7.12.1 Compiler (Parser)
#8099 Alternate syntax for indicating when a function is "fully applied" for purposes of inlining new normal Compiler
#1965 Allow unconstrained existential contexts in newtypes new normal 7.12.1 Compiler
#7140 Allow type signature in export list new normal 7.12.1 Compiler (Type checker)
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