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

Difficulty: Unknown (88 matches)

Ticket Summary Status Owner Priority Milestone Component
#1693 Make distclean (still) doesn't new igloo lowest 7.6.2 Build System
#2933 LDFLAGS ignored by build system new lowest 7.6.2 Build System
#3003 Happy does not reject pragmas new lowest 7.6.2 Build System
#3354 binaries built with GHC on Mac OS X 10.5 (Leopard) do not work on 10.4 (Tiger) new normal _|_ Build System
#3470 OSX installer should give an informative error message when XCode is missing new lowest 7.6.2 Build System
#3472 Porting through .hc files broken new -- high 7.8.1 Build System
#3509 libffi.so not found on Mac OS X (10.5.8) new lowest 7.6.2 Build System
#7028 incorrect link paths for in mac os x after install new igloo high 7.8.1 Build System
#7152 Add flag to configure that skips overwriting of symlinks on install new high 7.8.1 Build System
#7367 Optimiser / Linker Problem on amd64 new normal 7.8.1 Build System
#7452 [GNU gold] ld: error: cannot find [...]/Types__1.o new high 7.8.1 Build System
#7592 Building the latest master branch on FreeBSD 9.1 fails new igloo normal 7.8.1 Build System
#7651 Buiding GHC with parallel IO manager freezes on Mac (not on FreeBSD) new high 7.8.1 Build System
#7712 "make install" fails on Windows new igloo high 7.8.1 Build System
#7768 "untracked content" in fresh clone of haskeline new igloo normal 7.8.1 Build System
#7779 building GHC overwrites the installed package database if GHC_PACKAGE_PATH is set new igloo normal 7.8.1 Build System
#7833 installed GHC refers to libffi in the build directory new igloo high 7.8.1 Build System
#1853 hpc mix files for Main modules overwrite each other new AndyGill lowest 7.6.2 Code Coverage
#2224 -fhpc inteferes/prevents rewrite rules from firing new andy@… lowest 7.6.2 Code Coverage
#2991 .mix files generation broken with -fhpc and --make flags with lhs modules new andy@… lowest 7.6.2 Code Coverage
#3191 hpc reports spurious results with .lhs files even after processing with ghc -E new andy@… lowest 7.6.2 Code Coverage
#3376 hpc and CPP don't mix on Windows new andy@… lowest 7.6.2 Code Coverage
#7033 stale .tix files can cause programs built with -fhpc to segfault new normal 7.8.1 Code Coverage
#322 fromInteger-related pattern match overlap warnings new simonpj normal _|_ Compiler
#367 Infinite loops can hang Concurrent Haskell new ezyang lowest _|_ Compiler
#457 Strictness problem new normal _|_ Compiler
#487 powerpc/linux segfaulting binaries new normal _|_ Compiler
#781 GHCi on x86_64, cannot link to static data in shared libs new high 7.8.1 Compiler
#917 -O introduces space leak new lowest _|_ Compiler
#947 ghc -O space leak: CSE between different CAFs new normal _|_ Compiler
#1158 Problem with GADTs and explicit type signatures new simonpj lowest _|_ Compiler
#1168 Optimisation sometimes decreases sharing in IO code new normal _|_ Compiler
#1171 GHC doesn't respect the imprecise exceptions semantics new low _|_ Compiler
#1176 Infinite loop when printing error message new thorkilnaur low _|_ Compiler
#1216 Missed opportunity for let-no-esape new simonpj normal 7.6.2 Compiler
#1307 Warning refers to code not in the source new lowest _|_ Compiler
#1308 Type signature in warning is wrong new normal _|_ Compiler
#1526 -fobject-code doesn't apply to expressions typed at the prompt new normal _|_ Compiler
#1544 Derived Read instances for recursive datatypes with infix constructors are too inefficient new normal 7.6.2 Compiler
#1883 GHC can't find library using "short" name new lowest 7.6.2 Compiler
#2028 STM slightly conservative on write-only transactions new lowest 7.6.2 Compiler
#2031 relocation overflow new normal _|_ Compiler
#2057 inconsistent .hi file error gets ignored new normal _|_ Compiler
#2132 Optimise nested comparisons new normal _|_ Compiler
#2147 unhelpful error message for a misplaced DEPRECATED pragma new lowest 7.6.2 Compiler
#2159 Use a more efficient representation than [DynFlag] new lowest 7.6.2 Compiler
#2255 Improve SpecConstr for free variables new normal _|_ Compiler
#2256 Incompleteness of type inference: must quantify over implication constraints new simonpj lowest 7.6.2 Compiler
#2273 inlining defeats seq new lowest 7.6.2 Compiler
#2289 Needless reboxing of values when returning from a tight loop new lowest 7.6.2 Compiler
#2346 Compilation of large source files requires a lot of RAM new lowest 7.6.2 Compiler
#2356 GHC accepts multiple instances for the same type in different modules new low _|_ Compiler
#2370 num009 fails on OS X 10.5? new lowest 7.6.2 Compiler
#2387 Optimizer misses unboxing opportunity new lowest 7.6.2 Compiler
#2439 Missed optimisation with dictionaries and loops new simonpj lowest 7.6.2 Compiler
#2465 View + Pattern Match not fused sufficiently new low _|_ Compiler
#2530 deriving Show adds extra parens for constructor with record syntax new lowest 7.6.2 Compiler
#2607 Inlining defeats selector thunk optimisation new normal _|_ Compiler
#2625 Unexpected -ddump-simpl output for derived Ord instance and UNPACKed fields new low _|_ Compiler
#2642 Improve SpecConstr for join points new lowest 7.6.2 Compiler
#2697 bad testsuite results with ghc-6.10.0.20081007 new normal _|_ Compiler
#2710 -main-is flag in {-# OPTIONS #-} pragma not fully supported new lowest 7.6.2 Compiler
#2731 Avoid unnecessary evaluation when unpacking constructors new lowest 7.6.2 Compiler
#2823 Another arity expansion bug new lowest 7.6.2 Compiler
#2840 Top level string literals new lowest 7.6.2 Compiler
#2867 Make a way to tell GHC that a pragma name should be "recognised" new lowest 7.6.2 Compiler
#2915 Arity is smaller than need be new simonpj lowest 7.6.2 Compiler
#2940 Do CSE after CorePrep new simonpj lowest 7.6.2 Compiler
#2988 Improve float-in new lowest 7.6.2 Compiler
#3034 divInt# floated into a position which leads to low arity new lowest 7.6.2 Compiler
#3055 Int / Word / IntN / WordN are unequally optimized new lowest 7.6.2 Compiler
#3073 Avoid reconstructing dictionaries in recursive instance methods new lowest 7.6.2 Compiler
#3103 Compiling base with cabal fails. new high 7.8.1 Compiler
#3138 Returning a known constructor: GHC generates terrible code for cmonad new lowest 7.6.2 Compiler
#3266 Segment fault with WxHaskell and GHC 6.10.2 new normal _|_ Compiler
#3321 -fhpc assumes original sources relative to the current directory new lowest 7.6.2 Compiler
#3353 Add CLDouble support new normal _|_ Compiler
#3427 control what sort of entity a deprecated pragma applies to new low 7.6.2 Compiler
#3458 Allocation where none should happen new lowest 7.6.2 Compiler
#3533 mac installer package deletes old version of ghc new lowest 7.6.2 Compiler
#3549 unlit does not follow H98 spec new normal _|_ Compiler
#3571 Bizzarely bloated binaries new lowest 7.6.2 Compiler
#3588 ghc -M should emit dependencies on CPP headers new low 7.6.2 Compiler
#3831 SpecConstr should exploit cases where there is exactly one call pattern new simonpj high 7.8.1 Compiler
#3927 Incomplete/overlapped pattern warnings + GADTs = inadequate new simonpj high 7.8.1 Compiler
#3990 UNPACK doesn't unbox data families new low 7.6.2 Compiler
#4081 Strict constructor fields inspected in loop new benl low 7.6.2 Compiler
#4139 Spurious non-exhaustive pattern match warnings are given using GADTs new normal 7.0.1 Compiler
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