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Ticket Summary Status Owner Type Priority Milestone
#9439 LlvmCodegen: Overzealous mangler incorrectly transforms user code merge bug highest 7.8.4
#9198 large performance regression in type checker speed in 7.8 new bug high 7.10.1
#9221 (super!) linear slowdown of parallel builds on 40 core machine new bug high 7.12.1
#9267 Lack of type information in GHC error messages when the liberage coverage condition is unsatisfied new bug high 7.12.1
#9432 IncoherentInstances are too restricted new bug high
#1620 ModBreaks.modBreaks_array not initialised new bug normal 7.12.1
#8995 When generalising, use levels rather than global tyvars new bug normal
#8996 mark more things as const in C codegen new feature request normal
#9009 Confusing error message when loading package with TH infoneeded bug normal
#9015 A documented way to differentiate between statements, declarations, imports, etc. new feature request normal
#9017 Confusing error message with PolyKinds new bug normal
#9030 An async exception handler that blocks throwTo until handler finishes running new feature request normal
#9034 GHCi panics when given C++ object file on GNU/Linux new bug normal 7.12.1
#9037 Add option to make selected warnings errors new feature request normal
#9043 Add missing type class instances for data types in GHC.Generics infoneeded dreixel feature request normal 7.12.1
#9046 Panic in GHCi when using :print new bug normal 7.12.1
#9048 armel: evacuate(static): strange closure type 0 new bug normal
#9056 --make paths are not deduplicated new bug normal
#9059 Excessive space usage while generating code for fractional literals with big exponents new bug normal
#9074 GHC 7.8.2's ghci does not track missing symbols when loading non-Haskell object files new bug normal
#9076 GHC.Exts docs don't contain all primops new bug normal
#9079 Foreign.C.Types in haskell2010 new ekmett bug normal
#9087 Executables in the Linux binaries are not stripped new bug normal
#9089 Local .ghci_history infoneeded feature request normal 7.12.1
#9091 print and/or apply constraints when showing info for typed holes new feature request normal
#9101 Need option to use system gcc and binutils on Windows/msys2 new gintas feature request normal
#9105 Profiling binary consumes CPU even when idle on Linux. new simonmar bug normal
#9112 support for deriving Vector/MVector instances new feature request normal
#9113 Template Haskell should warn about non-exhaustive pattern matches new bug normal
#9118 Can't eta-reduce representational coercions new feature request normal
#9119 Additional symbols for XUnicodeSyntax infoneeded feature request normal
#9120 Cache intermediate powers new ekmett feature request normal
#9122 Make Lint check for bad uses of `unsafeCoerce` new qnikst bug normal
#9123 Need for higher kinded roles new goldfire bug normal 7.12.1
#9133 Improve parser error reporting in `ghc-pkg` new task normal 7.12.1
#9135 readProcessWithExitCode leaks when the program does not exist new snoyberg bug normal
#9136 Constant folding in Core could be better infoneeded bug normal
#9137 A way to match RULES only for literals new feature request normal
#9143 feature request: way to set actual program argv new feature request normal
#9149 Description of openFileBlocking is wrong new bug normal
#9157 cmm common block not eliminated new bug normal
#9160 Panic: Template variable unbound in rewrite rule new bug normal 7.8.3
#9173 Better type error messages new bug normal
#9180 New magic function `staticError` new nomeata feature request normal
#9183 GHC shouldn't expand constraint synonyms new feature request normal
#9192 Add sameByteArray# new feature request normal
#9194 Remove magic parsing of (~) new bug normal
#9197 FFI types should be usable in foreign import decls without revealing representations new feature request normal
#9202 Strange Closure Type new bug normal
#9210 "overlapping instances" through FunctionalDependencies new bug normal
#9214 UNPACK support for sum types new feature request normal
#9215 GHC 7.8.2 mingw-w64: symbol not found in link new bug normal
#9218 Upgrade the version of MinGW shipped with GHC patch gintas task normal 7.12.1
#9219 Parallel build proceeds despite errors new bug normal
#9223 Type equality makes type variable untouchable new bug normal
#9225 Missing syntax error for package qualified import with version number new ezyang bug normal
#9227 Coverage Condition cannot be turned off new bug normal
#9228 Internal compiler error with -O1 and -O2 infoneeded bug normal
#9229 Compiler memory use regression infoneeded bug normal
#9235 Simplifier ticks exhausted on recursive class method new bug normal
#9237 GHC not recognizing INPUT(-llibrary) in linker scripts new bug normal 7.12.1
#9238 Negative zero broken new bug normal 7.12.1
#9246 GHC generates poor code for repeated uses of min/max new bug normal
#9251 ghc does not expose branchless max/min operations as primops new task normal 7.12.1
#9252 Generalize hs-boot files to be more like module signatures new ezyang feature request normal
#9253 "internal error: evacuate(static): strange closure type 0" when running in QEMU new simonmar bug normal
#9256 Support automatic derivation of an hs-boot file from an hs file new ezyang feature request normal
#9257 CC_CLANG_BACKEND not reconfigured during bindist install new bug normal
#9269 Type families returning quantified types new feature request normal
#9276 audit ghc floating point support for IEEE (non)compliance new carter task normal 7.12.1
#9277 GHCi panic: Loading temp shared object failed: Symbol not found new bug normal
#9279 Local wrapper function remains in final program; result = extra closure allocation new simonpj bug normal
#9280 GHCi crash: illegal text-relocation to _ in _ from _ in _ for architecture x86_64; relocation R_X86_64_PC32 against undefined symbol _ can not be used when making a shared object new bug normal
#9287 changed dependency generation new simonmar bug normal
#9289 add anyToAddr# :: (#a#)-> Addr# primop (inverse of addrToAny#) new feature request normal 7.12.1
#9291 Don't reconstruct sum types if the type subtly changes new feature request normal
#9292 Race condition when multiple threads wait for a process new ekmett bug normal
#9297 Packages linked against certain Windows .dll files give warnings at runtime new simonmar bug normal
#9298 ghc.exe: internal error: evacuate: strange closure type 365488164 new bug normal
#9319 nofib-analyze doesn’t provide per-benchmark compile time/alloc numbers new feature request normal
#9320 Inlining regression/strangeness in 7.8 new bug normal
#9347 forkProcess does not acquire global handle locks new simonmar bug normal
#9352 Allow `State# s` argument/result types in `ccall` FFI imports new feature request normal 7.12.1
#9353 prefetch primops are not currently useful new bug normal 7.12.1
#9360 GHCi: Behave nicely on `-e`, like `ghc` and other programs new feature request normal
#9376 More informative error messages when closed type families fail to simplify new feature request normal
#9378 Make unknown LANGUAGE pragmas a warning, not an error new feature request normal
#9388 Narrow the scope of the notorious "state hack" new bug normal
#9418 Warnings about "INLINE binder is (non-rule) loop breaker" new bug normal
#9427 Do finer-grained dependency analysis to infer more general kinds on type/class declarations new feature request normal
#9441 CSE should deal with letrec new feature request normal
#9447 Add support for resizing `MutableByteArray#`s new bug normal
#9453 The example for GHC Generics is kinda broken new dreixel bug normal 7.12.1
#9456 Weird behavior with polymorphic function involving existential quantification and GADTs new bug normal
#9476 Implement late lambda-lifting new nfrisby feature request normal
#9478 Partial type signatures new feature request normal
#9481 Linker does not correctly resolve symbols in previously loaded objects new bug normal
#9516 unsafeUnmask unmasks even inside uninterruptibleMask new simonmar bug normal
#9522 SPECIALISE pragmas for derived instances new bug normal
#9539 TQueue can lead to thread starvation new ekmett bug normal
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