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Ticket Summary Status Owner Priority Milestone Component
#9784 Improve error message for misplaced quote inside promoted qualified type new normal Compiler (Parser)
#8501 Improve error message when using rec/mdo keyword without RecursiveDo extention. new normal Compiler (Parser)
#3547 Improve granularity of UndecidableInstances new low 7.12.1 Compiler
#881 Improve space profiling for references new normal Profiling
#9688 Improve the interaction between CSE and the join point transformation new normal Compiler
#9731 Inductive type definitions on Nat new normal Compiler
#6018 Injective type families new jstolarek normal 7.12.1 Compiler
#4815 Instance constraints should be used when deriving on associated data types new low 7.12.1 Compiler
#4316 Interactive "do" notation in GHCi new low 7.12.1 GHCi
#8707 Kind inference fails in data instance definition new low Compiler
#9642 LANGUAGE pragma synonyms new normal Compiler
#4213 LLVM: Add support for TNTC to LLVM compiler suite new dterei low 7.12.1 Compiler (LLVM)
#3645 Layout and pragmas new low 7.12.1 Compiler (Parser)
#5288 Less noisy version of -fwarn-name-shadowing new low 7.12.1 Compiler
#960 Lexical call site string new normal Compiler
#5266 Licensing requirements and copyright notices new low 7.12.1 None
#2207 Load the interface details for GHC.* even without -O new normal Compiler
#5416 Local modules and Template Haskell declaration splices new normal Template Haskell
#5324 Locally-scoped RULES new normal Compiler
#4470 Loop optimization: identical counters new normal 7.12.1 Compiler
#4823 Loop strength reduction for array indexing new low 7.12.1 Compiler
#10049 Lower level memcpy primop new normal Compiler
#9328 MINIMAL pragma should supprt negation new normal Compiler
#9419 Machine-readable output for profiling new ezyang normal Profiling
#8220 Macros / functions for source location new normal Compiler
#8812 Make *_stub.c files available again new normal Driver
#10039 Make Const (Control.Applicative) kind polymorphic in its second argument new ekmett normal Core Libraries
#9789 Make GHC accept .format+lhs as extension for literate haskell files new merijn normal Compiler
#3217 Make GHCi have separate flags for interactive Haskell expressions new normal 7.12.1 Compiler
#9883 Make OverloadedLists more usable by splitting the class interface new normal External Core
#8816 Make SPARC registerised again. new normal Compiler
#5016 Make Template Haskell: -ddump-splices generate executable code new low 7.12.1 Template Haskell
#2867 Make a way to tell GHC that a pragma name should be "recognised" new lowest 7.12.1 Compiler
#5835 Make better use of known dictionaries new normal 7.12.1 Compiler
#9365 Make command key in GHCi configurable new normal GHCi
#4913 Make event tracing conditional on an RTS flag only new low 7.12.1 Runtime System
#3753 Make ghci's -l option consistent with GNU ld's -l option new low 7.12.1 GHCi
#8761 Make pattern synonyms work with Template Haskell new normal 7.12.1 Template Haskell
#9601 Make the rewrite rule system more powerful new normal 7.12.1 Compiler
#8046 Make the timer management scale better across multicore new normal Compiler
#9378 Make unknown LANGUAGE pragmas a warning, not an error new normal Compiler
#8086 Minimal install for GHC new normal Compiler
#5171 Misfeature of Cmm optimiser: no way to extract a branch of expression into a separate statement new low 7.12.1 Compiler
#4894 Missing improvement for fun. deps. new normal Compiler (Type checker)
#1768 More flexible type signatures for data constructors new low Compiler
#9376 More informative error messages when closed type families fail to simplify new normal Compiler (Type checker)
#8045 Move I/O manager benchmarks into the GHC tree new normal NoFib benchmark suite
#8927 Multiple case match at once new normal Compiler (Parser)
#7335 Need for extra warning pragma for accidental pattern matching in do blocks new normal 7.12.1 Compiler
#9101 Need option to use system gcc and binutils on Windows/msys2 new gintas normal Build System
#9864 Need realloc/resize feature for mallocForeignPtrBytes allocated memory new ekmett low Core Libraries
#9180 New magic function `staticError` new nomeata normal Compiler
#4096 New primops for indexing: index*OffAddrUsing# etc new low 7.12.1 Compiler
#1388 Newbie help features new low GHCi
#2721 Newtype deriving doesn't work with type families new lowest 7.12.1 Compiler (Type checker)
#9977 Nicer imports new lowest Compiler (Parser)
#9887 No message when GCHI reusing compiled code new normal GHCi
#10055 Offer PolyKinded instances for Data.Fixed.HasResolution new low libraries/base
#5813 Offer a compiler warning for failable pattern matches new normal 7.12.1 Compiler
#9702 Offer a weaker name shadowing warning new normal Compiler
#9659 Offer branchless conditional (CMOV) primop new normal Compiler
#849 Offer control over branch prediction new normal 7.12.1 Compiler
#9923 Offer copy-on-GC sliced arrays new simonmar normal Runtime System
#7977 Optimization: Shift dropped list heads by coeffecient to prevent thunk generation new low Compiler
#9645 Optimize range checks for primitive types new normal Compiler
#9931 Option to truncate Show output in ghci REPL new normal Compiler
#3919 Or-patterns as GHC extension new normal Compiler
#8799 Orientation of given `Coercible` constraints new normal Compiler (Type checker)
#4091 Parse error on curried context of instance declaration new normal Compiler
#9478 Partial type signatures new normal Compiler
#8325 Pattern guards in anonymous functions new normal Compiler
#9911 Pattern synonyms with no signatures should yield warnings new cactus normal 7.12.1 Compiler (Type checker)
#9840 Permit empty closed type families new normal Compiler (Type checker)
#4020 Please consider adding support for local type synonyms new low 7.12.1 Compiler (Type checker)
#4459 Polymorphic Data.Dynamic new vivian low 7.12.1 GHC API
#9993 PostfixOperators doesn't work for types new normal Compiler
#5059 Pragma to SPECIALISE on value arguments new low 7.12.1 Compiler
#8809 Prettier error messages? new normal Compiler
#8207 Pretty Printer for textual version of Language (name) in DynFlags new low GHC API
#9790 Produce coercion rules for derived Functor instances new normal Compiler
#9632 Promotable type synonyms (or: synonyms to promoted types) new normal Compiler (Type checker)
#8504 Provide minor GC residency estimates new simonmar lowest Runtime System
#1451 Provide way to show the origin of a constraint new normal Compiler (Type checker)
#2531 Prune duplicates in ghci history new lowest 7.12.1 GHCi
#8844 Pseudo terminal and process-1.2.0.0 new snoyberg normal Core Libraries
#284 RPM doesn't support --prefix new juhp normal Build System
#3869 RTS GC Statistics from -S should be logged via the eventlog system new low 7.12.1 Runtime System
#10113 Re-export (<$>) from Prelude new highest 7.10.1 libraries/base
#7845 RebindableSyntax should allow rebinding tuples and lists new normal Compiler
#8610 Rebuild on a definition-based granularity new normal Compiler
#9948 Recommend class constraint instead of instance constraint new normal Compiler
#8582 Record syntax for pattern synonyms new cactus normal Compiler
#1262 RecursiveDo in Template Haskell new normal Template Haskell
#10023 Relax Monad constraint in traceM and traceShowM to Applicative new normal 7.12.1 libraries/base
#8634 Relax functional dependency coherence check ("liberal coverage condition") new high 7.12.1 Compiler
#4259 Relax restrictions on type family instance overlap new normal 7.12.1 Compiler (Type checker)
#3490 Relax superclass restrictions new normal Compiler
#4937 Remove indirections caused by sum types, such as Maybe new normal 7.12.1 Compiler
#7961 Remove restrictions on promoting GADT's new normal Compiler
#8914 Remove unnecessary constraints from MonadComprehensions and ParallelListComp new normal Compiler (Type checker)
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