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Ticket Summary Status Owner Priority Milestone Component
#9439 LlvmCodegen: Overzealous mangler incorrectly transforms user code merge highest 7.8.4 Compiler (LLVM)
#9858 Typeable instances should be kind-aware new dreixel highest 7.10.1 Compiler
#10034 Regression in mapM_ performance new ekmett highest 7.10.1 Core Libraries
#10058 Panic: Loading temp shared object failed patch highest 7.10.1 Runtime System
#10099 cabal install broken with ghc 7.10.1-rc2 new highest 7.10.1 Package system
#10115 Unable to run cabal haddock --hoogle on GHC 7.10 new highest 7.10.1 Compiler
#314 #line pragmas not respected inside nested comments new high 7.12.1 Compiler (Parser)
#781 GHCi on x86_64, cannot link to static data in shared libs new high 7.12.1 Compiler
#4144 Exception: ToDo: hGetBuf - when using custom handle infrastructure new high 7.12.1 Core Libraries
#4471 Incorrect Unicode output on Windows Console new high 7.10.1 Compiler
#4505 Segmentation fault on long input (list of pairs) new simonmar high 7.12.1 Compiler
#5001 makeCorePair: arity missing new high 7.4.1 Compiler
#5987 Too many symbols in ghc package DLL new thoughtpolice high 7.12.1 Compiler
#7170 Foreign.Concurrent finalizer called twice in some cases new high 7.6.1 Core Libraries
#7273 Binary size increase in nofib/grep between 7.6.1 and HEAD new high 7.12.1 Compiler
#7325 threadDelay mistreats minBound and maxBound in some configurations new high 7.12.1 Runtime System
#7411 Exceptions are optimized away in certain situations new high 7.12.1 Compiler
#7478 setSessionDynFlags does not always work new high 7.10.1 Compiler
#7521 Simplifier ticks exhausted when compiling Accelerate example. new high 7.12.1 Compiler
#7567 invalidateModSummaryCache throws exception if ms_hs_date is 0 new thoughtpolice high 7.12.1 Compiler
#7602 Threaded RTS performing badly on recent OS X (10.8?) new thoughtpolice high 7.12.1 Runtime System
#7651 Buiding GHC with parallel IO manager freezes on Mac (not on FreeBSD) infoneeded high 7.10.1 Build System
#7679 Regression in -fregs-graph performance new high 7.12.1 Compiler (NCG)
#7919 Heap corruption (segfault) from large 'let' expression infoneeded high 7.12.1 Runtime System
#8095 TypeFamilies painfully slow new high 7.10.1 Compiler (Type checker)
#8131 T7571 with WAY=llvm fails, but not WAY=optllvm infoneeded rwbarton high 7.12.1 Compiler
#8168 ghc "Simplifier ticks exhausted" "When trying UnfoldingDone" new high Compiler
#8224 Excessive system time -- new IO manager problem? new high 7.12.1 Runtime System
#8228 GHC built under Windows does not generate dyn_hi files new thoughtpolice high 7.12.1 Compiler
#8276 Building Haddock documentation panics with perf build on x86_64 Linux new thoughtpolice high 7.10.1 Documentation
#8550 GHC builds recursive coerctions when using recursive type families new high 7.10.1 Compiler (Type checker)
#8736 GHCi doesn't load .dyn_o files appropriately new thoughtpolice high 7.10.1 Compiler
#8832 Constant-folding regression wrt `clearBit (bit 0) 0 ` new high 7.10.1 Compiler
#8974 64 bit windows executable built with ghc-7.9.20140405+LLVM segfaults infoneeded high 7.12.1 Compiler (LLVM)
#9007 fails to build with hardening flags enabled (relocation R_X86_64_32 against `stg_CHARLIKE_closure'...) infoneeded nomeata high 7.12.1 Compiler
#9121 Presence of dyn_o files not checked upon recompilation new high Build System
#9125 int-to-float conversion broken on ARM infoneeded high 7.12.1 Compiler (CodeGen)
#9198 large performance regression in type checker speed in 7.8 new high 7.10.1 Compiler (Type checker)
#9221 (super!) linear slowdown of parallel builds on 40 core machine new high 7.12.1 Compiler
#9267 Lack of type information in GHC error messages when the liberage coverage condition is unsatisfied new high 7.12.1 Compiler
#9314 Each object file in a static archive file (.a) is loaded into its own mmap()ed page new high 7.12.1 Compiler
#9370 unfolding info as seen when building a module depends on flags in a previously-compiled module new high 7.12.1 Compiler
#9432 IncoherentInstances are too restricted new high Compiler (Type checker)
#9494 Probable data corruption with GHCi 7.8.* and Zlib infoneeded aseipp high GHCi
#9533 Signed/unsigned integer difference between compiled and interpreted code new high Compiler
#9630 compile-time performance regression (probably due to Generics) new simonpj high 7.12.1 Compiler
#9722 ghcirun004 intermittently fails with ghc: ioManagerWakeup: write: Bad file descriptor new high 7.10.1 GHCi
#9929 New alias handling not compatible with LLVM 3.4 new high 7.10.1 Compiler (LLVM)
#9956 Command line flag deprecated warning could be annoying for -Werror users new ezyang high 7.10.1 Compiler
#9963 GHCi panic with --print-libdir flag new high 7.10.1 Driver
#9968 DeriveAnyClass fails on multi-parameter type classes new dreixel high 7.10.1 Compiler
#10003 integer-gmp2 tries to be GMP 4.x compatible but uses functions from GMP 5.x merge hvr high 7.10.1 libraries (other)
#10009 type inference regression when faking injective type families new high 7.10.1 Compiler (Type checker)
#10052 Panic (something to do with floatExpr?) new simonmar high 7.10.1 Compiler
#10068 Make the runtime reflection API for names, modules, locations more systematic new high 7.12.1 Compiler
#10079 Coercible solver regression: Couldn't match rep of () with Const () b new goldfire high 7.10.1 Compiler (Type checker)
#149 missed CSE opportunity new normal Compiler
#229 Integer overflow in array allocation new rwbarton normal 7.12.1 Core Libraries
#322 fromInteger-related pattern match overlap warnings new simonpj normal Compiler
#427 Random.StdGen slowness new ekmett normal Core Libraries
#487 powerpc/linux segfaulting binaries new normal Compiler
#806 hGetBufNonBlocking doesn't work on Windows new normal Core Libraries
#816 Weird fundep behavior (with -fallow-undecidable-instances) new normal Compiler (Type checker)
#947 ghc -O space leak: CSE between different CAFs new normal Compiler
#1057 Implicit parameters on breakpoints new normal GHCi
#1062 Bad output from Text.PrettyPrint.HughesPJ new ekmett normal Core Libraries
#1087 bang patterns with infix ops new normal Compiler (Parser)
#1147 Quadratic behaviour in the compacting GC new normal Runtime System
#1168 Optimisation sometimes decreases sharing in IO code new normal Compiler
#1216 Missed opportunity for let-no-esape new simonpj normal 7.12.1 Compiler
#1290 ghc runs preprocessor too much new normal Driver
#1308 Type signature in warning is wrong new normal Compiler
#1400 :set +r doesn't work for interpreted modules new simonmar normal GHCi
#1466 Stack check for AP_STACK new simonmar normal 7.12.1 Compiler
#1526 -fobject-code doesn't apply to expressions typed at the prompt new normal Compiler
#1530 debugging :steps inside TH spliced code need to be bypassed new normal GHCi
#1544 Derived Read instances for recursive datatypes with infix constructors are too inefficient new normal 7.12.1 Compiler
#1614 Type checker does not use functional dependency to avoid ambiguity new normal Compiler (Type checker)
#1620 ModBreaks.modBreaks_array not initialised new normal 7.12.1 GHCi
#1687 A faster (^)-function. new normal Prelude
#1831 reify never provides the declaration of variables new normal Template Haskell
#1851 "make install-strip" should work new normal 7.12.1 Build System
#1978 Error message: Undefined reference to `XXX_closure' new normal Compiler
#2031 relocation overflow new normal Compiler
#2057 inconsistent .hi file error gets ignored new normal Compiler
#2132 Optimise nested comparisons new normal Compiler
#2189 hSetBuffering stdin NoBuffering doesn't work on Windows new normal 7.12.1 Core Libraries
#2255 Improve SpecConstr for free variables new normal Compiler
#2280 randomR too slow new ekmett normal Core Libraries
#2408 threadWaitRead on mingw32 threaded causes internal error new normal 7.12.1 Core Libraries
#2496 Invalid Eq/Ord instances in Data.Version new normal 7.12.1 Core Libraries
#2607 Inlining defeats selector thunk optimisation new normal Compiler
#2725 Remove Hack in compiler/nativeGen/MachCodeGen.hs new thoughtpolice normal 7.12.1 Compiler (NCG)
#2786 Blackhole loops are not detected and reported in GHCi new normal GHCi
#3048 Heap size suggestion gets ignored when -G1 flag is passed new normal Runtime System
#3055 Int / Word / IntN / WordN are unequally optimized new normal 7.12.1 Compiler
#3081 Double output after Ctrl+C on Windows new normal Runtime System
#3094 Some GHC.* module should export word size and heap object header size new normal 6.12.1 libraries (other)
#3134 encodeFloat . decodeFloat new normal Prelude
#3231 Permission denied error with runProcess/openFile new simonmar normal 7.12.1 Core Libraries
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