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Difficulty: Difficult (2-5 days) (1 match)

Ticket Summary Status Owner Priority Milestone Component
#4012 Compilation results are not deterministic new high 7.6.2 Compiler

Difficulty: Easy (less than 1 hour) (3 matches)

Ticket Summary Status Owner Priority Milestone Component
#4268 Annotation extension needs a flag new normal 7.6.2 Compiler
#4048 ghc-pkg should check for existence of extra-libraries new low 7.6.2 Package system
#1487 unix package: test needed for getLoginName new adrien lowest 7.6.2 libraries/unix

Difficulty: Moderate (less than a day) (8 matches)

Ticket Summary Status Owner Priority Milestone Component
#1400 :set +r doesn't work for interpreted modules new simonmar normal _|_ GHCi
#670 External Core is broken new tim normal _|_ External Core
#1057 Implicit parameters on breakpoints new normal _|_ GHCi
#1498 Optimisation: eliminate unnecessary heap check in recursive function new low 7.6.2 Compiler
#4451 Re-linking avoidance is too aggressive new simonmar normal 7.6.2 Compiler
#1466 Stack check for AP_STACK new simonmar normal 7.6.2 Compiler
#806 hGetBufNonBlocking doesn't work on Windows new normal _|_ libraries/base
#149 missed CSE opportunity new normal _|_ Compiler

Difficulty: Unknown (88 matches)

Ticket Summary Status Owner Priority Milestone Component
#7712 "make install" fails on Windows new igloo high 7.8.1 Build System
#7768 "untracked content" in fresh clone of haskeline new igloo normal 7.8.1 Build System
#314 #line pragmas not respected inside nested comments new high 7.8.1 Compiler (Parser)
#917 -O introduces space leak new lowest _|_ Compiler
#5780 -faggressive-primops change caused a failure in perf/compiler/parsing001 new high 7.8.1 Compiler
#3543 -fext-core doesn't force recompilation when .hcr file doesn't exist new lowest 7.6.2 Driver
#7735 -fext-core doesn't generate .hcr when .o and .hi files are present new normal 7.8.1 External Core
#3321 -fhpc assumes original sources relative to the current directory new lowest 7.6.2 Compiler
#2224 -fhpc inteferes/prevents rewrite rules from firing new andy@… lowest 7.6.2 Code Coverage
#5889 -fno-prof-count-entries leads to linking errors new normal 7.6.2 Compiler
#1526 -fobject-code doesn't apply to expressions typed at the prompt new normal _|_ Compiler
#2710 -main-is flag in {-# OPTIONS #-} pragma not fully supported new lowest 7.6.2 Compiler
#2991 .mix files generation broken with -fhpc and --make flags with lhs modules new andy@… lowest 7.6.2 Code Coverage
#5827 /usr/local hard-coded in cabal new duncan normal 7.6.2 libraries (other)
#7043 32-bit GHC ceiling of negative float SEGFAULT: 11 new igloo high 7.6.2 Compiler
#7011 32bit GHC 7.4.2 cannot compile integer-gmp on OS X 10.8 new high 7.8.1 libraries (other)
#7655 7.6.2 Segmentation Fault/Bus Error in large exponentation new igloo normal 7.8.1 GHCi
#7730 :info and polykinds new normal 7.8.1 Compiler (Type checker)
#7685 :script command does not resolve ~ new normal 7.8.1 GHCi
#1687 A faster (^)-function. new normal _|_ Prelude
#3353 Add CLDouble support new normal _|_ Compiler
#7152 Add flag to configure that skips overwriting of symlinks on install new high 7.8.1 Build System
#6040 Adding a type signature changes heap allocation into stack allocation without changing the actual type new simonpj normal 7.8.1 Compiler
#3458 Allocation where none should happen new lowest 7.6.2 Compiler
#2823 Another arity expansion bug new lowest 7.6.2 Compiler
#5809 Arity analysis could be better new simonpj normal 7.6.2 Compiler
#2915 Arity is smaller than need be new simonpj lowest 7.6.2 Compiler
#5333 Arrow command combinators and infixr cause the desugarer to fail new ross low 7.6.2 Compiler (Parser)
#3073 Avoid reconstructing dictionaries in recursive instance methods new lowest 7.6.2 Compiler
#2731 Avoid unnecessary evaluation when unpacking constructors new lowest 7.6.2 Compiler
#5924 Bad Cmm generated for updating one element in Array# new normal 7.6.2 Compiler
#4005 Bad behaviour in the generational GC with paraffins -O2 new normal _|_ Runtime System
#7831 Bad fragmentation when allocating many large objects new ezyang normal 7.8.1 Runtime System
#1062 Bad output from Text.PrettyPrint.HughesPJ new normal _|_ libraries/pretty
#7273 Binary size increase in nofib/grep between 7.6.1 and HEAD new high 7.8.1 Compiler
#3571 Bizzarely bloated binaries new lowest 7.6.2 Compiler
#2786 Blackhole loops are not detected and reported in GHCi new normal _|_ GHCi
#7503 Bug with PolyKinds, type synonyms & GADTs new simonpj normal 7.8.1 Compiler (Type checker)
#7651 Buiding GHC with parallel IO manager freezes on Mac (not on FreeBSD) new high 7.8.1 Build System
#7889 Build Error (master branch) new high 7.8.1 GHCi
#7388 CAPI doesn't work with ghci new igloo normal 7.6.2 GHCi
#3238 CInt FFI exports do not use C int in _stub.h header file new lowest 7.6.2 Compiler (FFI)
#7246 Callstack depends on way (prof, profasm, profthreaded new normal 7.8.1 Profiling
#6132 Can't use both shebang line and #ifdef declarations in the same file. new normal 7.8.1 Compiler
#5666 Can't use writeFile to write unicode characters. new normal 7.6.2 libraries (other)
#5702 Can't vectorise pattern matching on numeric literals new chak normal 7.6.2 Data Parallel Haskell
#7114 Cannot recover (good) inlining behaviour from 7.0.2 in 7.4.1 new normal 7.8.1 Compiler
#5902 Cannot tell from an exception handler whether the exception was asynchronous new simonmar high 7.8.1 Compiler
#5974 Casts, rules, and parametricity new normal _|_ Compiler
#7505 Commentary shipped with GHC sources is outdated new normal 7.8.1 Documentation
#2346 Compilation of large source files requires a lot of RAM new lowest 7.6.2 Compiler
#6037 Compile-time crash with sources with non-representable unicode characters new normal 7.8.1 Compiler
#7103 Compiler panic, when loading wxc in GHCi new high 7.6.2 GHCi
#7258 Compiling DynFlags is jolly slow new simonpj normal 7.8.1 Compiler
#3103 Compiling base with cabal fails. new high 7.8.1 Compiler
#5763 Confusing error message new simonpj high 7.6.2 Compiler
#1928 Confusing type error message new low _|_ Compiler (Type checker)
#5724 Confusing warning message for incomplete patterns new normal 7.6.2 Compiler
#7854 Constrained method type accepted in Haskell 98 mode new normal Compiler
#7543 Constraint synonym instances new normal 7.8.1 Compiler
#7862 Could not deduce (A) from the context (A, ...) new normal Compiler (Type checker)
#5907 Crashed loading package Safe new normal 7.6.2 Package system
#7610 Cross compilation support for LLVM backend new dterei normal 7.8.1 Compiler (LLVM)
#7621 Cross-build for QNX ARM smashes stack when using FunPtr wrappers new normal 7.8.1 Compiler (FFI)
#7091 DPH Matrix product memory usage new benl normal 7.8.1 Data Parallel Haskell
#5807 DPH library functions don't work without -fvectorise. new benl normal 7.6.2 Data Parallel Haskell
#2450 Data.Complex.magnitude squares using ^(2 :: Int), which is slow new lowest 7.6.2 libraries/base
#5949 Demand analysis attributes manifestly wrong demand type new normal 7.8.1 Compiler
#1544 Derived Read instances for recursive datatypes with infix constructors are too inefficient new normal 7.6.2 Compiler
#5642 Deriving Generic of a big type takes a long time and lots of space new dimitris high 7.6.2 Compiler
#7229 Detecting if a process was killed by a signal is impossible new high 7.8.1 libraries/process
#2940 Do CSE after CorePrep new simonpj lowest 7.6.2 Compiler
#2776 Document -pgmL (Use cmd as the literate pre-processor) new lowest 7.6.2 Documentation
#7460 Double literals generated bad core new tibbe normal 7.8.1 Compiler
#3081 Double output after Ctrl+C on Windows new normal _|_ Runtime System
#5620 Dynamic linking and threading does not work on Windows new igloo high 7.6.2 Runtime System
#5786 Dynanmic way fails when GHC built with LLVM backend new dterei normal 7.6.2 Compiler (LLVM)
#7669 Empty case causes warning new normal 7.8.1 Compiler
#7800 Error message when deriving Typeable without PolyKinds new dreixel normal 7.8.1 Compiler
#7461 Error messages about "do" statements contain false information new normal 7.8.1 Compiler (Type checker)
#7830 Error: operand out of range new high 7.8.1 Compiler
#7259 Eta expansion of products in System FC new simonpj normal 7.8.1 Compiler
#7382 Evaluating GHCi expressions is slow following the dynamic-by-default change new highest 7.8.1 GHCi
#7411 Exceptions are optimized away in certain situations new high 7.8.1 Compiler
#5840 Extend the supported environment sizes of vectorised closures new chak normal 7.6.2 Data Parallel Haskell
#7068 Extensive Memory usage (regression) new simonpj high 7.8.1 Compiler
#7903 Failure to find class instance specified with extra parentheses new normal Compiler
#7772 Finish support for DYNAMIC_GHC_PROGRAMS on Windows new igloo high 7.8.1 Compiler
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