Custom Query (109 matches)


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Difficulty: Difficult (2-5 days) (8 matches)

Ticket Summary Status Owner Priority Milestone Component
#595 Overhaul GHC's overlapping/non-exhaustive pattern checking new normal Compiler
#599 The Front Panel new normal Runtime System
#603 GC-spy connection new normal Runtime System
#605 Optimisation: strict enumerations new normal Compiler
#617 Alpha port new normal Compiler
#634 Implement a more efficient TArray new normal Runtime System
#701 Better CSE optimisation new michalt normal Compiler
#989 Windows "native" port new normal Compiler

Difficulty: Easy (less than 1 hour) (6 matches)

Ticket Summary Status Owner Priority Milestone Component
#8079 Redo T7919 and TH_spliceE5_prof with a cabal file new normal Test Suite
#8290 lookupSymbol API is unsafe new normal Runtime System
#9057 Remove /usr/bin/… references new low Build System
#8313 Poor performance of higher-order functions with unboxing new low Compiler
#3712 Implement -dynamic-lib option new low 7.10.1 Compiler
#8330 Remove ExtsCompat46 module once we bootstrap with GHC 7.8 new highest 7.10.1 Compiler

Difficulty: Moderate (less than a day) (16 matches)

Ticket Summary Status Owner Priority Milestone Component
#8308 Resurrect ticky code for counting constructor arity new normal Profiling
#8480 ghc 7.6.3 + clang-compatibility patches new high Compiler
#8723 sdist should not have to build everything new low Build System
#597 Various error messages have inaccurate source locations new low Compiler
#618 Dependency caching in ghc --make new normal Compiler
#624 Program location for thread error messages new normal Compiler
#1009 GHC Performance Index new normal Build System
#1371 Add -O3 new normal Compiler
#602 Warning Suppression new lowest 7.10.1 Compiler
#609 Useful optimisation for set-cost-centre new simonmar normal 7.10.1 Profiling
#1600 Optimisation: CPR the results of IO new nomeata lowest 7.10.1 Compiler
#2123 implement waitForProcess using signals new lowest 7.10.1 libraries/process
#2437 More accurate package dependencies new lowest 7.10.1 Package system
#3355 Refactor Template Haskell syntax conversions new lowest 7.10.1 Compiler
#3713 Track -dynamic/-fPIC to avoid obscure linker errors new low 7.10.1 Compiler
#8489 clean up dependency and usages handling in interface files new errge normal 7.10.1 Template Haskell

Difficulty: Project (more than a week) (1 match)

Ticket Summary Status Owner Priority Milestone Component
#8323 explore ways to possibly use more tag bits in x86_64 pointers new normal 7.10.1 Compiler

Difficulty: Rocket Science (2 matches)

Ticket Summary Status Owner Priority Milestone Component
#8272 testing if SpLim=$rbp and Sp=$rsp changed performance at all new carter normal 7.10.1 Compiler
#8287 exploring calling convention changes and related engineering for 7.10 new high 7.10.1 Compiler

Difficulty: Unknown (67 matches)

Ticket Summary Status Owner Priority Milestone Component
#8050 add a required wrapper around plugin installers new normal Compiler
#8070 Use a captcha for trac registrations new hvr high Trac & Git
#8096 Add fudge-factor for performance tests run on non-validate builds new normal Build System
#8251 Validate submodule references during pre-receive hook new hvr normal Trac & Git
#8315 Improve specialized Hoopl module new low Compiler
#8317 Optimize tagToEnum# at Core level new normal Compiler
#8326 Place heap checks common in case alternatives before the case new normal Compiler
#8335 Create more specialized entries to GC new normal Compiler
#8552 Rename StgArrWords to StgArrBytes new lowest Compiler
#8578 Improvements to SpinLock implementation new normal Runtime System
#8597 Git Hook script to prevent large binary blobs being checked in new hvr normal Trac & Git
#8598 IO hack in demand analyzer gets in the way of CPR new normal Compiler
#8655 Evaluate know-to-terminate-soon thunks new nomeata normal Compiler
#8842 Make sure msys2 builds non emulating binaries new normal Compiler
#8894 Clean up `Coercible` plumbing new nomeata normal Compiler
#8992 Instructions for using gdb with GHC on Windows new normal Documentation
#9067 Optimize clearNursery by short-circuiting when we get to currentNursery new ezyang low Runtime System
#9131 Experiment with a dedicated solver for Coercible new low Compiler
#9287 changed dependency generation new normal Documentation
#855 Improvements to SpecConstr new normal Compiler
#932 Improve inlining new simonpj normal Compiler
#1405 Make ghc (stage1) be compilable by non-GHC new normal Compiler
#3024 Rewrite hp2ps in Haskell new normal Profiling
#3384 Add HsSyn prettyprinter tests new kseo normal Test Suite
#3511 port GHC to OpenBSD/sparc64 (unregisterised is fine) new normal Compiler
#5793 make nofib awesome new dterei normal NoFib benchmark suite
#5794 Nofib nightly regressions with pretty graphs new dterei normal NoFib benchmark suite
#3658 Dynamically link GHCi (and use system linker) on platforms that support it new thoughtpolice normal 7.8.4 GHCi
#5757 zero unexpected failures on all tier 1 platforms new normal 7.8.4 Test Suite
#888 Implement the static argument transformation new normal 7.10.1 Compiler
#1016 Avoidance of unaligned loads is overly conservative new lowest 7.10.1 Compiler
#1349 Generalise the ! and UNPACK mechanism for data types, to unpack function arguments new normal 7.10.1 Compiler
#1377 GHCi debugger tasks new mnislaih lowest 7.10.1 GHCi
#1572 Make it easy to find documentation for GHC and installed packages new lowest 7.10.1 Compiler
#1631 Make the External Package Table contain ModDetails not ModIface new lowest 7.10.1 Compiler
#1880 Unify flag descriptions to generate both docs and code new lowest 7.10.1 Compiler
#2968 add test for C trigraphs new kchugalinskiy lowest 7.10.1 Compiler
#3379 GHC should use the standard binary package new normal 7.10.1 Compiler
#3462 New codegen: allocate large objects using allocateLocal() new low 7.10.1 Compiler
#3559 split ghci modules off into their own package new low 7.10.1 GHCi
#3646 Enforce requirement that our repos contains a subset of upstream's patches new lowest 7.10.1 Compiler
#4211 LLVM: Stack alignment on OSX new dterei normal 7.10.1 Compiler (LLVM)
#4243 Make a proper options parser for the RTS new normal 7.10.1 Runtime System
#4374 Remove in-tree gmp new normal 7.10.1 Build System
#5140 Fix LLVM backend for PowerPC new erikd low 7.10.1 Compiler (LLVM)
#5143 Soft heap limit flag new simonmar normal 7.10.1 Runtime System
#5158 Update .git-ignore in all the repos new pcapriotti low 7.10.1 Compiler
#5791 Defer other kinds of errors until runtime, not just type errors new normal 7.10.1 Compiler
#6017 Reading ./.ghci files raises security issues new normal 7.10.1 GHCi
#7371 Supporting old GHC versions in our libraries new normal 7.10.1 Build System
#7608 LLVM only handles a hard-coded list of triples. new dterei normal 7.10.1 Compiler (LLVM)
#7623 GHC Arm support new normal 7.10.1 Compiler
#7790 Add dummy undefined symbols to indicate ways new ezyang normal 7.10.1 Compiler
#7829 make better/more robust loopbreaker choices new normal 7.10.1 Compiler
#7883 enable GHC LLVM backend to use LLVM provided CAS / Atomicity primitives? new carter normal 7.10.1 Compiler
#8226 Remove the old style -- # Haddock comments. new adinapoli normal 7.10.1 Compiler
#8238 Implement unloading of shared libraries new normal 7.10.1 Runtime System
#8405 experiment with using function-sections for linking (for smaller libs and executables) new normal 7.10.1 Compiler
#8440 Get rid of the remaining static flags new high 7.10.1 Compiler
#8545 Reorganize Git repositories new hvr normal 7.10.1 Trac & Git
#8647 Reduce allocations in `integer-gmp` new normal 7.10.1 libraries (other)
#8767 Add rules involving `coerce` to the libraries new normal 7.10.1 libraries/base
#8785 Replace hooks API in the RTS with something better new simonmar high 7.10.1 Runtime System
#9094 remove RAW_CPP new normal 7.10.1 Compiler
#9133 Improve parser error reporting in `ghc-pkg` new normal 7.10.1 ghc-pkg
#9218 Upgrade the version of MinGW shipped with GHC new komadori normal 7.10.1 Build System
#9251 ghc does not expose branchless max/min operations as primops new carter normal 7.10.1 Compiler
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