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Ticket Summary Status Owner Type Milestone Component
#9088 Per-thread Haskell thread list/numbering (remove global lock from thread allocation) new simonmar bug Runtime System
#3766 Parsing of lambdas is not consistent with Haskell'98 report. new bug 7.12.1 Compiler (Parser)
#6034 Parse error when using ' with promoted kinds new bug Compiler (Parser)
#8710 Overlapping patterns warning misplaced new bug Compiler
#5316 Orphan instances strike again: ghc rejects a program at first but will accept it if you repeat the same compilation command new bug Compiler
#7977 Optimization: Shift dropped list heads by coeffecient to prevent thunk generation new feature request Compiler
#4301 Optimisations give bad core for foldl' (flip seq) () new bug 7.12.1 Compiler
#1498 Optimisation: eliminate unnecessary heap check in recursive function new bug 7.12.1 Compiler
#10055 Offer PolyKinded instances for Data.Fixed.HasResolution new feature request libraries/base
#8399 Of Bird tacks and non-blank blank lines new bug Compiler
#4899 Non-standard compile plus Template Haskell produces spurious "unknown symbol" linker error new simonmar bug 7.12.1 Compiler
#1388 Newbie help features new feature request GHCi
#4096 New primops for indexing: index*OffAddrUsing# etc new feature request 7.12.1 Compiler
#3462 New codegen: allocate large objects using allocateLocal() new simonmar task 7.12.1 Runtime System
#9864 Need realloc/resize feature for mallocForeignPtrBytes allocated memory new ekmett feature request Core Libraries
#1768 More flexible type signatures for data constructors new feature request Compiler
#5267 Missing type checks for arrow command combinators new ross bug 7.12.1 Compiler (Type checker)
#5171 Misfeature of Cmm optimiser: no way to extract a branch of expression into a separate statement new feature request 7.12.1 Compiler
#4800 Memory Leak when Compiling qtHaskell new bug 7.12.1 Compiler
#4281 Make impredicativity work properly new simonpj task 7.12.1 Compiler
#3753 Make ghci's -l option consistent with GNU ld's -l option new feature request 7.12.1 GHCi
#4913 Make event tracing conditional on an RTS flag only new feature request 7.12.1 Runtime System
#4806 Make error message more user friendly when module is not found because package is unusable infoneeded feature request 7.12.1 Compiler
#5016 Make Template Haskell: -ddump-splices generate executable code new feature request 7.12.1 Template Haskell
#9403 Make --show-iface more human readable new ezyang task Compiler
#4823 Loop strength reduction for array indexing new feature request 7.12.1 Compiler
#9249 Link to "latest" user's guide new bug Documentation
#5266 Licensing requirements and copyright notices new feature request 7.12.1 None
#5288 Less noisy version of -fwarn-name-shadowing new feature request 7.12.1 Compiler
#3645 Layout and pragmas new feature request 7.12.1 Compiler (Parser)
#4213 LLVM: Add support for TNTC to LLVM compiler suite new dterei feature request 7.12.1 Compiler (LLVM)
#9307 LLVM vs NCG: floating point numbers close to zero have different sign new bug 7.12.1 Compiler (NCG)
#4308 LLVM compiles Updates.cmm badly new bug 7.12.1 Compiler (LLVM)
#8707 Kind inference fails in data instance definition new feature request Compiler
#8730 Invalid Unicode Codepoints in Char new ekmett bug Core Libraries
#4316 Interactive "do" notation in GHCi new feature request 7.12.1 GHCi
#4815 Instance constraints should be used when deriving on associated data types new feature request 7.12.1 Compiler
#5298 Inlined functions aren't fully specialised new bug 7.12.1 Compiler
#1176 Infinite loop when printing error message new thorkilnaur bug Compiler
#5041 Incorrect Read deriving for MagicHash constructors new bug Compiler
#8315 Improve specialized Hoopl module new task Compiler
#3755 Improve join point inlining new task 7.12.1 Compiler
#3547 Improve granularity of UndecidableInstances new feature request 7.12.1 Compiler
#9518 Improve error message for unacceptable role annotations infoneeded feature request Compiler (Type checker)
#5224 Improve consistency checking for family instances new simonpj bug 7.12.1 Compiler
#9719 Improve `mkInteger` interface new task 7.12.1 Compiler
#307 Implicit Parameters and monomorphism new feature request None
#4479 Implement Dot as Postfix Function Apply new feature request 7.12.1 Compiler (Type checker)
#3712 Implement -dynamic-lib option new task 7.12.1 Compiler
#9976 Ignore newlines in code diffs on Phab new feature request Trac & Git
#9285 IO manager startup procedure somewhat odd new simonmar bug Runtime System
#8532 Hyperbolic arc cosine fails on (-1) :: Complex r. new ekmett bug Core Libraries
#9723 Give Tab warning only once per file new feature request Compiler
#5291 GhcDynamic build fails on Windows: can't find DLLs new bug 7.12.1 Build System
#8959 GHCi should honour UnicodeSyntax new bug 7.12.1 Compiler
#9940 GHCi crashes when I hold down control-c for a short time, and then hold down any key that would normally result in typing. new bug Compiler
#4942 GHC.ConsoleHandler does not call back application when Close button is pressed new bug 7.12.1 GHC API
#4329 GHC.Conc modifyTVar primitive new ekmett feature request 7.12.1 Core Libraries
#1192 GHC-only IOErrorType constructors, and is*Error(Type) functions new feature request Compiler
#8173 GHC uses nub new leroux bug Compiler
#9987 GHC refuses to compile a file that starts with a Byte Order Mark (BOM) new feature request Compiler
#9498 GHC links against unversioned .so files new feature request Compiler (FFI)
#3517 GHC has lots of extra hidden IOErrorType values new feature request Core Libraries
#9685 GHC fails to build with mingw32-make on Windows new gintas feature request Build System
#1171 GHC doesn't respect the imprecise exceptions semantics new bug Compiler
#2356 GHC accepts multiple instances for the same type in different modules new bug Compiler
#8258 GHC accepts `data Foo where` in H2010 mode new bug 7.12.1 Compiler
#4162 GHC API messes up signal handlers new bug 7.12.1 GHC API
#3373 GHC API is not thread safe new bug 7.12.1 GHC API
#345 GADT - fundep interaction new simonpj bug Compiler (Type checker)
#2465 Fusion of recursive functions new feature request Compiler
#2926 Foreign exported function returns wrong type new bug Compiler (FFI)
#5140 Fix LLVM backend for PowerPC new erikd task 7.12.1 Compiler (LLVM)
#4833 Finding the right loop breaker new bug 7.12.1 Compiler
#3464 Find import declaration importing a certain function new feature request 7.12.1 GHCi
#9946 Expose the source location of template-haskell Names new feature request Compiler
#9131 Experiment with a dedicated solver for Coercible new task Compiler
#2708 Error message should suggest UnboxedTuples language extension new feature request Compiler (Parser)
#2614 Enumeration of values for `Sys.Info.os`, `Sys.Info.arch` new mjg feature request 7.12.1 Core Libraries
#9182 Empty case analysis for function clauses new feature request Compiler
#5082 Emit warnings when conflicting flags are supplied new feature request Compiler
#4861 Documentation for base does not include special items upstream ekmett bug Core Libraries
#9247 Document -XDatatypeContexts in flag reference new goldfire bug 7.12.1 Documentation
#9748 Disambiguate IO actions in GHCi with :set +t new zudov feature request GHCi
#8195 Different floating point results with -msse2 on 32bit Linux new bug Compiler (NCG)
#3782 Data Parallel "Impossible happened" compiler error new benl bug 7.12.1 Data Parallel Haskell
#3903 DPH bad sliceP causes RTS panic "allocGroup: requested zero blocks" new benl bug 7.12.1 Data Parallel Haskell
#4938 Core2 CPU not detected correctly infoneeded bug 7.12.1 Compiler
#1928 Confusing type error message new bug Compiler (Type checker)
#9204 Conflicting definition in hs-boot file new goldfire bug 7.12.1 Documentation
#5262 Compiling with -O makes some expressions too lazy and causes space leaks new bug 7.12.1 Compiler
#9233 Compiler performance regression new bug Compiler
#9234 Compiled code performance regression new bug Compiler
#3744 Comparisons against minBound/maxBound not optimised for (Int|Word)(8|16|32) new feature request 7.12.1 Compiler
#9631 Comment in GHC.Base about GHC.Prim does not appear to be correct new ekmett bug 7.12.1 Core Libraries
#3937 Cannot killThread in listen/accept on Windows threaded runtime new bug 7.12.1 Runtime System
#4150 CPP+QuasiQuotes confuses compilation errors' line numbers new bug 7.12.1 Compiler (Parser)
#9758 By default, testsuite should clean up after successful tests new task Test Suite
#989 Build GHC on Windows using Microsoft toolchain new feature request Build System
#4960 Better inlining test in CoreUnfold new task 7.12.1 Compiler
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