{1} Bugs by priority (925 matches)

Lists all open bugs in order of priority.

Results (401 - 500 of 925)

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Ticket Summary Component Version Priority Severity Milestone Owner Status Created
#9848 List.all does not fuse Core Libraries 7.9 normal ekmett new Nov 30, 2014
#10246 Literal Pattern match loses order Compiler 7.10.1 normal nomeata patch Apr 6, 2015
#9854 Literal overflow check is too aggressive Compiler 7.8.3 normal new Dec 2, 2014
#9439 LlvmCodegen: Overzealous mangler incorrectly transforms user code Compiler (LLVM) 7.8.2 highest 7.8.4 merge Aug 14, 2014
#10442 Loading of shared libraries is problematic in ghc 7.10.1 Compiler 7.10.1 high 7.10.2 new May 23, 2015
#9279 Local wrapper function remains in final program; result = extra closure allocation Compiler 7.8.2 normal simonpj new Jul 7, 2014
#7668 Location in -fdefer-type-errors Compiler (Type checker) 7.6.2 normal 7.12.1 new Feb 6, 2013
#9669 Long compile time/high memory usage for modules with many deriving clauses Compiler 7.8.3 normal new Oct 6, 2014
#7634 MD5 collision could lead to SafeHaskell violation Core Libraries 7.6.1 normal ekmett new Jan 28, 2013
#7080 Make RULES and SPECIALISE more consistent Compiler 7.4.2 normal new Jul 16, 2012
#1693 Make distclean (still) doesn't Build System 6.6.1 lowest normal 7.12.1 new Sep 14, 2007
#9709 Make restarts itself sometimes, and that's OK Build System 7.9 normal new Oct 21, 2014
#7353 Make system IO interruptible on Windows Core Libraries 7.6.1 normal 7.12.1 ekmett new Oct 20, 2012
#10068 Make the runtime reflection API for names, modules, locations more systematic Compiler 7.8.4 high 7.12.1 new Feb 6, 2015
#10362 Make tuple constraints into a class Compiler 7.10.1 normal new Apr 28, 2015
#7897 MakeTypeRep fingerprints be proper, robust fingerprints Compiler 7.6.3 normal new May 8, 2013
#8784 Makefile missing a dependency Build System 7.9 normal new Feb 13, 2014
#10310 MakingReleases outdated or build system problems Build System 7.10.1 normal new Apr 15, 2015
#9020 Massive blowup of code size on trivial program Compiler 7.8.2 normal 7.12.1 nomeata new Apr 22, 2014
#4800 Memory Leak when Compiling qtHaskell Compiler 6.12.3 low 7.12.1 new Nov 29, 2010
#7289 Mingw FPU init not Windows compatible. Runtime System 7.2.2 normal 7.12.1 new Oct 2, 2012
#1216 Missed opportunity for let-no-esape Compiler 6.6 normal normal 7.12.1 simonpj new Mar 12, 2007
#2439 Missed optimisation with dictionaries and loops Compiler 6.9 lowest normal 7.12.1 simonpj new Jul 11, 2008
#9687 Missing Typeable instances for built-in types Compiler 7.8.3 normal new Oct 13, 2014
#8034 Missing ambiguity test for class methods Compiler (Type checker) 7.7 normal 7.12.1 new Jul 3, 2013
#10294 Missing instances if compiling with -fplugin Compiler (Type checker) 7.10.1 normal new Apr 13, 2015
#5267 Missing type checks for arrow command combinators Compiler (Type checker) 7.0.3 low 7.12.1 ross new Jun 22, 2011
#1620 ModBreaks.modBreaks_array not initialised GHCi 7.8.2 normal normal 7.12.1 new Aug 19, 2007
#9717 More lazy orphan module loading Compiler (Type checker) 7.9 normal 7.12.1 ezyang new Oct 24, 2014
#10316 Move Typeable type-rep generation from use site to definition site Compiler 7.10.1 normal 7.12.1 new Apr 16, 2015
#10075 Muddling Constraint and * means that Core is inconsistent Compiler 7.8.4 normal new Feb 10, 2015
#10242 Multiple constraint wildcards allowed with PartialTypeSignatures Compiler 7.10.1 normal thomasw new Apr 5, 2015
#2374 MutableByteArray# is slower than Addr# Compiler (NCG) 6.8.2 lowest minor 7.12.1 new Jun 18, 2008
#9041 NCG generates slow loop code Compiler (NCG) 7.6.3 normal new Apr 27, 2014
#9388 Narrow the scope of the notorious "state hack" Compiler 7.8.2 normal new Jul 31, 2014
#8971 Native Code Generator for 7.8 is not as optimized as 7.6.3... Compiler (NCG) 7.8.1-rc2 normal 7.12.1 new Apr 8, 2014
#8178 Need TypeRep for Symbol and numeric type literals; and Typeable instances Compiler 7.6.3 normal diatchki new Aug 27, 2013
#9123 Need for higher kinded roles Compiler 7.8.2 normal 7.12.1 goldfire new May 19, 2014
#2289 Needless reboxing of values when returning from a tight loop Compiler 6.8.2 lowest normal 7.12.1 new May 17, 2008
#9238 Negative zero broken Compiler 7.8.2 normal 7.12.1 new Jun 25, 2014
#10411 Neighbour let-bindings are not reported as relevant Compiler 7.10.1 normal new May 12, 2015
#7930 Nested STM Invariants are lost Runtime System 7.6.3 normal 7.12.1 fryguybob new May 24, 2013
#7198 New codegen more than doubles compile time of T3294 Compiler (CodeGen) 7.4.2 normal 7.12.1 simonmar new Aug 29, 2012
#3872 New way to make the simplifier diverge Compiler 6.12.1 normal new Feb 10, 2010
#9509 No automatic specialization of inlinable imports in 7.8 Compiler 7.8.3 normal new Aug 23, 2014
#8871 No-op assignment I64[BaseReg + 784] = I64[BaseReg + 784]; is generated into optimized Cmm Compiler (CodeGen) 7.9 normal new Mar 10, 2014
#8970 Non-exhaustive pattern match warning with DataKinds and TypeFamilies Compiler 7.6.3 normal new Apr 7, 2014
#2260 Non-ideal error message for misplaced LANGUAGE pragma Compiler (Parser) 6.8.2 lowest trivial 7.12.1 new May 3, 2008
#4899 Non-standard compile plus Template Haskell produces spurious "unknown symbol" linker error Compiler 7.0.1 low 7.12.1 simonmar new Jan 18, 2011
#8399 Of Bird tacks and non-blank blank lines Compiler 7.6.3 low new Oct 2, 2013
#10205 On Windows ghc-pkg always reports cache out of date ghc-pkg 7.10.1 normal 7.10.2 new Mar 27, 2015
#8198 One-shot mode is buggy w.r.t. hs-boot files Driver 7.7 normal 7.12.1 parcs new Aug 30, 2013
#10337 One-shot module loops have hard to understand messages Compiler (Type checker) 7.11 normal new Apr 21, 2015
#10005 Operations on string literals won't be inlined Compiler 7.8.4 normal new Jan 19, 2015
#7596 Opportunity to improve CSE Compiler 7.6.1 normal 7.12.1 simonpj new Jan 16, 2013
#10439 Opt_ImplicitImportQualified doesn't work for constructor field name GHCi 7.10.1 normal watashi new May 22, 2015
#1168 Optimisation sometimes decreases sharing in IO code Compiler 6.6 normal normal new Feb 23, 2007
#1498 Optimisation: eliminate unnecessary heap check in recursive function Compiler 6.6.1 low normal 7.12.1 new Jul 6, 2007
#4301 Optimisations give bad core for foldl' (flip seq) () Compiler 6.12.3 low 7.12.1 new Sep 10, 2010
#2132 Optimise nested comparisons Compiler 6.8.2 normal normal new Feb 28, 2008
#10215 Optimizer has bugs regarding handling of -0.0 Compiler 7.8.3 high new Mar 29, 2015
#2387 Optimizer misses unboxing opportunity Compiler 6.8.2 lowest minor 7.12.1 new Jun 19, 2008
#8629 Option 'split-objs' being ignored when trying to reduce object code size in iOS cross-compilation Compiler 7.6.3 normal new Dec 25, 2013
#8363 Order matters for unused import warnings when reexporting identifiers Compiler 7.7 normal new Sep 26, 2013
#8082 Ordering of assembly blocks affects performance Compiler (NCG) 7.6.3 normal new Jul 22, 2013
#5316 Orphan instances strike again: ghc rejects a program at first but will accept it if you repeat the same compilation command Compiler 7.0.4 low new Jul 11, 2011
#3107 Over-eager GC when blocked on a signal in the non-threaded runtime Runtime System 6.10.1 lowest normal 7.12.1 new Mar 17, 2009
#8710 Overlapping patterns warning misplaced Compiler 7.7 low new Jan 28, 2014
#9951 OverloadedLists breaks exhaustiveness check Compiler 7.8.4 normal new Jan 2, 2015
#9809 Overwhelming the TimerManager Runtime System 7.10.1 normal simonmar new Nov 18, 2014
#9297 Packages linked against certain Windows .dll files give warnings at runtime Runtime System 7.8.2 normal simonmar new Jul 11, 2014
#10052 Panic (something to do with floatExpr?) Compiler 7.10.1-rc2 high 7.10.2 simonmar merge Jan 31, 2015
#9046 Panic in GHCi when using :print GHCi 7.8.2 normal 7.12.1 new Apr 28, 2014
#7078 Panic using mixing list with parallel arrays incorrectly Compiler 7.4.1 normal 7.12.1 chak new Jul 16, 2012
#10173 Panic: Irrefutable pattern failed for pattern Data.Maybe.Just Compiler 7.8.4 normal new Mar 20, 2015
#10187 Panic: RegAlloc.Liveness.computeLivenss; SCCs aren't in reverse dependent order; bad blockId c8xHd Compiler 7.8.4 normal new Mar 24, 2015
#7380 Panic: mkNoTick: Breakpoint loading modules with -O2 via API GHC API 7.4.1 normal 7.12.1 new Nov 1, 2012
#9219 Parallel build proceeds despite errors Driver 7.8.2 normal new Jun 19, 2014
#6034 Parse error when using ' with promoted kinds Compiler (Parser) 7.5 low new Apr 23, 2012
#8956 Parser error shadowed by "module ‘main:Main’ is defined in multiple files" error Compiler 7.8.1-rc2 normal new Apr 4, 2014
#4043 Parsing of guards, and type signatures Compiler (Parser) 6.12.2 normal new May 4, 2010
#3766 Parsing of lambdas is not consistent with Haskell'98 report. Compiler (Parser) 6.10.4 low 7.12.1 new Dec 16, 2009
#10134 Pattern Matching Causes Infinite Type Error Compiler 7.8.4 normal infoneeded Mar 3, 2015
#10339 PatternSynonyms confuse exhaustiveness check Compiler 7.8.1 normal new Apr 21, 2015
#9088 Per-thread Haskell thread list/numbering (remove global lock from thread allocation) Runtime System 7.9 low simonmar new May 7, 2014
#9944 Performance issue re: simple loop Compiler 7.8.3 low new Dec 31, 2014
#9960 Performance problem with TrieMap Compiler 7.8.4 normal new Jan 5, 2015
#5954 Performance regression 7.0 -> 7.2 (still in 7.4) Compiler 7.4.1 normal 7.12.1 simonpj new Mar 20, 2012
#9979 Performance regression GHC 7.8.4 to GHC HEAD Compiler 7.11 normal new Jan 13, 2015
#6166 Performance regression in mwc-random since 7.0.x Compiler 7.4.2 normal 7.12.1 new Jun 15, 2012
#8990 Performance tests behave differently depending on presence of .hi file (even with -fforce-recomp) Test Suite 7.9 normal new Apr 12, 2014
#3231 Permission denied error with runProcess/openFile Core Libraries 6.10.4 normal normal 7.12.1 simonmar new May 15, 2009
#10301 Plugins/dynamic loading subtly broken (it seems) Compiler 7.8.2 normal 7.10.2 new Apr 14, 2015
#5326 Polymorphic instances aren't automatically specialised Compiler 7.0.3 low 7.12.1 simonpj new Jul 15, 2011
#9730 Polymorphism and type classes Compiler (Type checker) 7.8.3 normal new Oct 27, 2014
#4288 Poor -fspec-constr-count=n warning messages Compiler 6.13 low 7.12.1 new Sep 4, 2010
#9803 Poor error message for unbound variable in pattern synonym Compiler (Type checker) 7.9 normal new Nov 15, 2014
#9981 Potential typechecker regression in GHC 7.10.1RC Compiler (Type checker) 7.10.1-rc1 normal 7.12.1 simonpj new Jan 13, 2015
#1727 Precedence and associativity rules ignored when mixing infix type and data constructors in a single expression Compiler (Parser) 6.6.1 lowest minor 7.12.1 new Sep 22, 2007
#10379 Prefix syntax for promoted list kind isn't parsed properly Compiler (Parser) 7.10.1 low 7.12.1 goldfire new May 4, 2015
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