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Ticket Summary Status Owner Type Priority Component
#5757 zero unexpected failures on all tier 1 platforms new task highest Test Suite
#4012 Compilation results are not deterministic new bug high Compiler
#4245 ghci panic: thread blocked indefinitely in an MVar operation new tibbe bug high GHCi
#5539 GHC panic - Simplifier ticks exhausted new simonpj bug high Compiler
#5620 Dynamic linking and threading does not work on Windows new igloo bug high Runtime System
#5642 Deriving Generic of a big type takes a long time and lots of space new dimitris bug high Compiler
#5763 Confusing error message new simonpj bug high Compiler
#5859 unsafeInterleaveIO duplicates computation when evaluated by multiple threads new simonpj bug high libraries/base
#5909 Segfault with multi-threaded retainer profiling merge simonmar bug high Runtime System
#5954 Performance regression 7.0 -> 7.2 (still in 7.4) new simonpj bug high Compiler
#6166 Performance regression in mwc-random since 7.0.x new bug high Compiler
#7043 32-bit GHC ceiling of negative float SEGFAULT: 11 new igloo bug high Compiler
#7056 GHCi loadArchive "libiconv.a":failed Unknown PEi386 section name `.drectve' new bug high GHCi
#7103 Compiler panic, when loading wxc in GHCi new bug high GHCi
#7277 Recompilation check fails for TH unless functions are inlined new bug high Template Haskell
#7316 GHC segfaults on ARM new bug high Compiler
#7320 GHC crashes when building on 32-bit Linux in a Linode new simonmar bug high Runtime System
#7325 threadDelay mistreats minBound and maxBound in some configurations new bug high Runtime System
#7636 threadStackUnderflow: not enough space for return values merge simonmar bug high Compiler
#609 Useful optimisation for set-cost-centre new simonmar task normal Profiling
#849 Offer control over branch prediction new feature request normal Compiler
#888 Implement the static argument transformation new task normal Compiler
#1216 Missed opportunity for let-no-esape new simonpj bug normal Compiler
#1349 Generalise the ! and UNPACK mechanism for data types, to unpack function arguments new task normal Compiler
#1466 Stack check for AP_STACK new simonmar bug normal Compiler
#1496 Newtypes and type families combine to produce inconsistent FC(X) axiom sets new simonpj bug normal Compiler (Type checker)
#1544 Derived Read instances for recursive datatypes with infix constructors are too inefficient new bug normal Compiler
#1965 Allow unconstrained existential contexts in newtypes new feature request normal Compiler
#2189 hSetBuffering stdin NoBuffering doesn't work on Windows new bug normal libraries/base
#2301 Proper handling of SIGINT/SIGQUIT new bug normal libraries/process
#3085 warn about language extensions that are not used new feature request normal Compiler
#3217 Make GHCi have separate flags for interactive Haskell expressions new feature request normal Compiler
#3231 Permission denied error with runProcess/openFile new simonmar bug normal libraries/base
#3242 ghci: can't load .so/.DLL for: m (addDLL: could not load DLL) new bug normal GHCi
#3333 GHCi doesn't load weak symbols new bug normal GHCi
#3379 GHC should use the standard binary package new task normal Compiler
#3654 Mach-O GHCi linker lacks support for a range of relocation entries new bug normal Runtime System
#3693 Show stack traces new feature request normal Runtime System
#3984 Handle multiline input in GHCi history new feature request normal GHCi
#4092 Floating point manipulation : ulp and coerce IEEE-754 Double# into Word64# new feature request normal Compiler
#4102 Bit manipulation built-ins new feature request normal libraries/base
#4211 LLVM: Stack alignment on OSX new dterei task normal Compiler (LLVM)
#4268 Annotation extension needs a flag new bug normal Compiler
#4295 Review higher-rank and impredicative types new simonpj bug normal Compiler
#4347 Bug in unification of polymorphic and not-yet-polymorphic type new bug normal Compiler (Type checker)
#4372 Extending quasiquotation support new bug normal Template Haskell
#4385 Type-level natural numbers new diatchki feature request normal Compiler (Type checker)
#4451 Re-linking avoidance is too aggressive new simonmar bug normal Compiler
#4470 Loop optimization: identical counters new feature request normal Compiler
#4900 DEPENDS pragma new feature request normal Compiler
#4937 Remove indirections caused by sum types, such as Maybe new feature request normal Compiler
#5075 CPR optimisation for sum types if only one constructor is used new simonpj feature request normal Compiler
#5108 Allow unicode sub/superscript symbols in both identifiers and operators new feature request normal Compiler (Parser)
#5143 Soft heap limit flag new simonmar task normal Runtime System
#5239 Em-dash for "--" with UnicodeSyntax. new feature request normal Compiler (Parser)
#5289 Can't use ghci with a library linked against libstdc++ new bug normal GHCi
#5320 check_overlap panic (7.1 regression) new simonpj bug normal Compiler
#5355 Link plugins against existing libHSghc new bug normal Compiler
#5364 Access RTS flag values from inside Haskell programs new feature request normal libraries/base
#5369 Reinstate VECTORISE pragmas with expressions as right-hand sides new chak bug normal Data Parallel Haskell
#5392 Warnings about impossible MPTCs would be nice new feature request normal Compiler
#5401 LANGUAGE pragma parser nit new igloo bug normal Compiler (Parser)
#5412 dataTypeConstrs gives unhelpful error message new bug normal libraries/base
#5429 Docase notation as GHC extension new tomasp feature request normal Compiler
#5443 Errors when shutting down the event manager loop new tibbe bug normal Compiler
#5444 Slow 64-bit primops on 32 bit system new bug normal Compiler
#5462 Deriving clause for arbitrary classes new feature request normal Compiler
#5463 SPECIALISE pragmas generated from Template Haskell are ignored new bug normal Template Haskell
#5467 Template Haskell: support for Haddock comments new feature request normal Template Haskell
#5470 The DPH library needs to support PData and PRepr instances for more than 15-tuples new chak bug normal Data Parallel Haskell
#5498 Generalized newtype deriving allows creating of instances I can't create by hand new bug normal Compiler
#5522 mc03 -O -fliberate-case -fspec-constr runs out of memory new simonpj bug normal Compiler
#5542 also parse class/instance declarations as "HEAD <= CONTEXT where" new feature request normal Compiler (Parser)
#5556 Support pin-changing on ByteArray#s new feature request normal Compiler
#5567 LLVM: Improve alias analysis / performance new dterei task normal Compiler (LLVM)
#5590 "guarded instances": instance selection can add extra parameters to the class new simonpj feature request normal Compiler (Type checker)
#5615 ghc produces poor code for `div` with constant powers of 2. new daniel.is.fischer bug normal Compiler
#5619 Shorter qualified import statements new feature request normal Compiler
#5630 External Core needs love new bug normal Compiler
#5641 The -L flag should not exist new bug normal Profiling
#5645 Sharing across functions causing space leak new bug normal Compiler
#5646 Initialise tuples using pragmas new chak bug normal Data Parallel Haskell
#5647 CLI option to silence "Loading package foo ... linking ... done" output new feature request normal Compiler
#5666 Can't use writeFile to write unicode characters. new bug normal libraries (other)
#5672 parBufferWHNF could be less subtle new duncan feature request normal libraries (other)
#5687 Friendly Interface for auto-completion of GHCi new feature request normal GHCi
#5692 Source code with large floating constants in exponential notation cannot be compiled new pcapriotti bug normal Compiler
#5702 Can't vectorise pattern matching on numeric literals new chak bug normal Data Parallel Haskell
#5724 Confusing warning message for incomplete patterns new bug normal Compiler
#5761 Getting stdout and stderr as a single handle from createProcess does not work on Windows new bug normal libraries/process
#5775 Inconsistency in demand analysis new bug normal Compiler
#5777 core lint error with arrow notation and GADTs new ross bug normal Compiler
#5786 Dynanmic way fails when GHC built with LLVM backend new dterei bug normal Compiler (LLVM)
#5787 Add instances to ZipList infoneeded feature request normal libraries/base
#5791 Defer other kinds of errors until runtime, not just type errors new task normal Compiler
#5807 DPH library functions don't work without -fvectorise. new benl bug normal Data Parallel Haskell
#5809 Arity analysis could be better new simonpj bug normal Compiler
#5813 Offer a compiler warning for failable pattern matches new feature request normal Compiler
#5821 SPECIALISE fails with a cryptic warning new bug normal Compiler
#5823 FFI and CAPI needs {-# INCLUDE #-} back? new feature request normal Compiler
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