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

Difficulty: Unknown (88 matches)

Ticket Summary Status Owner Priority Milestone Component
#7916 PolyKinds without type signatures new normal Compiler (Type checker)
#7908 InstanceSigs suggestion not accepted new normal Compiler
#7904 GHC calls the cc1 of a gcc thats not the first in PATH new normal Compiler
#7903 Failure to find class instance specified with extra parentheses new normal Compiler
#7898 SpecConstr explodes when compiling module BSP of frag-1.1.2 new normal Compiler
#7897 MakeTypeRep fingerprints be proper, robust fingerprints new normal Compiler
#7889 Build Error (master branch) new high 7.8.1 GHCi
#7880 Require "forall" in definitions of polymorphic types new normal Compiler
#7874 segfault 11 on mac os x when building compiler for ghc 7.7.20130430 new normal Compiler
#7862 Could not deduce (A) from the context (A, ...) new normal Compiler (Type checker)
#7859 runghc should give an error when the path to ghc is invalid new normal 7.8.1 None
#7854 Constrained method type accepted in Haskell 98 mode new normal Compiler
#7833 installed GHC refers to libffi in the build directory new igloo high 7.8.1 Build System
#7831 Bad fragmentation when allocating many large objects new ezyang normal 7.8.1 Runtime System
#7830 Error: operand out of range new high 7.8.1 Compiler
#7828 RebindableSyntax and Arrow new normal 7.8.1 Compiler (Type checker)
#7814 panic in PPC NCG new heisenbug high 7.8.1 Compiler
#7811 intermittent 'unexpected' results of test ghcpkg01 new igloo normal 7.8.1 ghc-pkg
#7809 Silly error message suggesting LiberalTypeSynonyms new normal 7.8.1 Compiler (Type checker)
#7807 Parse error with "where" and file-ending comment new high 7.8.1 Compiler (Parser)
#7803 Superclass methods are left unspecialized new normal 7.8.1 Compiler
#7800 Error message when deriving Typeable without PolyKinds new dreixel normal 7.8.1 Compiler
#7797 re-enable the defun RULE from a SPECIALISE instance pragma new normal 7.8.1 Compiler
#7794 GHCi "Prelude.undefined" exceptions on ARM; ByteCodeItbls.mkJumpToAddr unimplemented new normal 7.8.1 GHCi
#7789 GHCI core dumps when used with VTY new igloo normal 7.8.1 GHCi
#7788 Recursive type family causes <<loop>> new simonpj normal 7.8.1 Compiler (Type checker)
#7787 modifyMVar does not restore value if callback returns error value new high 7.8.1 libraries/base
#7786 strange errors when deducing constraints new simonpj normal 7.8.1 Compiler
#7785 Module-local function not specialized with ConstraintKinds new normal 7.8.1 Compiler
#7783 MultiWayIf should start a new layout new normal 7.8.1 Compiler (Parser)
#7779 building GHC overwrites the installed package database if GHC_PACKAGE_PATH is set new igloo normal 7.8.1 Build System
#7774 T5313 fails new normal 7.8.1 GHC API
#7772 Finish support for DYNAMIC_GHC_PROGRAMS on Windows new igloo high 7.8.1 Compiler
#7771 RTS should provide stg_sel_n_noupd_closure new simonpj normal 7.8.1 Compiler
#7768 "untracked content" in fresh clone of haskeline new igloo normal 7.8.1 Build System
#7765 Odd error message for `runghc` with missing `main` function. new igloo normal 7.8.1 Compiler
#7762 when using lots of memory: internal error: evacuate(static): strange closure type 4 new normal 7.8.1 Runtime System
#7753 Profiling report broken with foreign exported functions new normal 7.8.1 Profiling
#7752 GHC as a library documentation out of sync new high 7.8.1 Documentation
#7736 Parallel array enumeration causes compiler panic (enumFromToP) new chak normal 7.8.1 Compiler
#7735 -fext-core doesn't generate .hcr when .o and .hi files are present new normal 7.8.1 External Core
#7730 :info and polykinds new normal 7.8.1 Compiler (Type checker)
#7729 GHC panics. Invalid core new normal 7.6.3 Compiler
#7727 Nonsense evaluation: sequence [] = [] new igloo normal 7.8.1 GHCi
#7725 Operators without colons new normal 7.8.1 Compiler
#7723 iOS patch no 12: Itimer.c doesn't work on iOS new normal 7.8.1 Runtime System
#7715 threadDelay causes segfault on Mac if compiled by 32bit GHC new high 7.8.1 Compiler
#7713 Panic! make_exp (App _ (Coercion _)) when compiled with -fext-core new normal 7.8.1 External Core
#7712 "make install" fails on Windows new igloo high 7.8.1 Build System
#7698 thread blocked indefinitely in an MVar operation new igloo normal 7.8.1 GHCi
#7695 Hang when locale-archive and gconv-modules are not there new normal 7.8.1 None
#7694 LLVM: bootstrapping with LLVM 3.2 does not work new dterei normal 7.8.1 Compiler (LLVM)
#7687 ghc panic on TH and deriveJSON new normal 7.8.1 Template Haskell
#7685 :script command does not resolve ~ new normal 7.8.1 GHCi
#7679 Regression in -fregs-graph performance new high 7.8.1 Compiler (NCG)
#7678 GHC should compile cleanly with clang new thoughtpolice high 7.8.1 Compiler
#7672 boot file entities are sometimes invisible and are not (semantically) unified with corresponding entities in implementing module new normal 7.8.1 Compiler (Type checker)
#7670 StablePtrs should be organized by generation for efficient minor collections new normal 7.8.1 Runtime System
#7669 Empty case causes warning new normal 7.8.1 Compiler
#7668 Location in -fdefer-type-errors new normal 7.8.1 Compiler (Type checker)
#7667 Template Haskell fails to recognize type operator/function + new normal 7.8.1 Template Haskell
#7666 excessive space and time usage for rendering (somewhat) deeply nested Docs new dterei normal 7.8.1 libraries/pretty
#7665 dynamicToo001 fails on Windows new igloo normal 7.8.1 Compiler
#7660 warning: conflicting types when compiling via-C new igloo normal 7.8.1 Compiler
#7655 7.6.2 Segmentation Fault/Bus Error in large exponentation new igloo normal 7.8.1 GHCi
#7651 Buiding GHC with parallel IO manager freezes on Mac (not on FreeBSD) new high 7.8.1 Build System
#7650 can't use combining characters in identifiers new normal 7.8.1 Compiler
#7644 Hackage docs for base library contain broken links new normal 7.8.1 Documentation
#7643 Kind application error new simonpj normal 7.8.1 Compiler (Type checker)
#7634 MD5 collision could lead to SafeHaskell violation new normal 7.8.1 libraries/base
#7625 Semicolon is not handled between imports at the ghci command prompt new normal 7.8.1 GHCi
#7624 Handling ImplicitParams in Instance Declaration new normal 7.8.1 Documentation
#7621 Cross-build for QNX ARM smashes stack when using FunPtr wrappers new normal 7.8.1 Compiler (FFI)
#7611 Rewrite rules application prevented by type variable application (map id vs. map (\x -> x)) new normal 7.8.1 Compiler
#7610 Cross compilation support for LLVM backend new dterei normal 7.8.1 Compiler (LLVM)
#7604 System.Directory.canonicalizePath "" behaviour differs between platforms new normal 7.8.1 libraries/directory
#7602 Threaded RTS performing badly on recent OS X (10.8?) new thoughtpolice normal _|_ Runtime System
#7598 ghc-stage1 generates wrong assembler on StgCmmPrim (operand out of range) new high 7.8.1 Compiler
#7596 Opportunity to improve CSE new simonpj normal 7.8.1 Compiler
#7593 Unable to print exceptions of unicode identifiers new normal 7.8.1 Compiler
#7574 Register allocator chokes on certain branches with literals new thoughtpolice high 7.8.1 Compiler (NCG)
#7567 invalidateModSummaryCache throws exception if ms_hs_date is 0 new high 7.8.1 Compiler
#7558 Terrible error message when given and wanted are both insoluble new simonpj normal 7.8.1 Compiler
#7543 Constraint synonym instances new normal 7.8.1 Compiler
#7542 GHC doesn't optimize (strict) composition with id new simonpj normal 7.8.1 Compiler
#7540 Panic on type inference with vectorised parallel arrays new chak highest 7.8.1 Compiler
#7539 Hard ghc api crash when calling runStmt on code which has not been compiled new normal 7.8.1 Compiler
#7535 Using -with-rtsopts=-N should fail unless -threaded is also specified new normal 7.8.1 Compiler
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