August 2013 - ghc-tickets

Re: [GHC] #2823: Another arity expansion bug
by GHC 20 Aug '13

20 Aug '13

#2823: Another arity expansion bug --------------------------------------------+------------------------------ Reporter: simonpj | Owner: Type: bug | Status: new Priority: lowest | Milestone: 7.6.2 Component: Compiler | Version: 6.10.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime performance bug | Unknown/Multiple Test Case: | Difficulty: Unknown Blocking: | Blocked By: | Related Tickets: --------------------------------------------+------------------------------ Changes (by jstolarek): * cc: jan.stolarek@… (added) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/2823#comment:11> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #3915: GHC panic; possibly related to mutually recursive modules
by GHC 20 Aug '13

20 Aug '13

#3915: GHC panic; possibly related to mutually recursive modules -------------------------------------+------------------------------------- Reporter: bob | Owner: jstolarek Type: bug | Status: new Priority: lowest | Milestone: 7.6.2 Component: Compiler | Version: 6.12.1 Resolution: | Keywords: GHC panic Operating System: Linux | mutually recursive modules Type of failure: Compile-time | Architecture: x86 crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------- Changes (by jstolarek): * owner: => jstolarek * difficulty: => Unknown Comment: Is it OK if we close this ticket? We have no code that would allow to reproduce the problem (unless OP can provide us with code). I'll close this ticket in a couple of days/weeks, unless somebody objects. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/3915#comment:9> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7473: getModificationTime gives only second-level resolution
by GHC 20 Aug '13

20 Aug '13

#7473: getModificationTime gives only second-level resolution ----------------------------------------+---------------------------------- Reporter: duncan | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: libraries/directory | Version: 7.6.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Test Case: | Difficulty: Unknown Blocking: | Blocked By: | Related Tickets: ----------------------------------------+---------------------------------- Changes (by nh2): * cc: mail@… (added) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7473#comment:8> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #2731: Avoid unnecessary evaluation when unpacking constructors
by GHC 20 Aug '13

20 Aug '13

#2731: Avoid unnecessary evaluation when unpacking constructors --------------------------------------------+------------------------------ Reporter: simonpj | Owner: Type: bug | Status: new Priority: lowest | Milestone: 7.6.2 Component: Compiler | Version: 6.8.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime performance bug | Unknown/Multiple Test Case: | Difficulty: Unknown Blocking: | Blocked By: | Related Tickets: --------------------------------------------+------------------------------ Changes (by jstolarek): * cc: jan.stolarek@… (added) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/2731#comment:9> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1693: Make distclean (still) doesn't
by GHC 20 Aug '13

20 Aug '13

#1693: Make distclean (still) doesn't -------------------------------------+------------------------------------ Reporter: simonpj | Owner: Type: bug | Status: new Priority: lowest | Milestone: 7.6.2 Component: Build System | Version: 6.6.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: 7966 -------------------------------------+------------------------------------ Changes (by jstolarek): * related: => 7966 -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/1693#comment:27> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7966: 'make distclean' does not work in nofib
by GHC 20 Aug '13

20 Aug '13

#7966: 'make distclean' does not work in nofib ------------------------------------------+-------------------------------- Reporter: jstolarek | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: NoFib benchmark suite | Version: 7.7 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Other | Unknown/Multiple Test Case: | Difficulty: Unknown Blocking: | Blocked By: | Related Tickets: #1693 ------------------------------------------+-------------------------------- Changes (by jstolarek): * difficulty: => Unknown * related: => #1693 -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7966#comment:1> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7958: 'Cannot continue after interface file error' during compilation
by GHC 20 Aug '13

20 Aug '13

#7958: 'Cannot continue after interface file error' during compilation ----------------------------------------------+---------------------------- Reporter: jstolarek | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.7 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: GHC rejects valid program | Unknown/Multiple Test Case: | Difficulty: Unknown Blocking: | Blocked By: | Related Tickets: ----------------------------------------------+---------------------------- Changes (by jstolarek): * difficulty: => Unknown Comment: Fuuzetsu, can you still reproduce that bug? I just tried with latest HEAD and sadly all seems to work (sadly, because we don't have a testcase to catch regressions). -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7958#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #6098: debugger does not know the correct type for a newtype field
by GHC 19 Aug '13

19 Aug '13

#6098: debugger does not know the correct type for a newtype field ------------------------------------------------+-------------------------- Reporter: phercek | Owner: ptc Type: bug | Status: new Priority: high | Milestone: 7.8.1 Component: GHCi | Version: 7.5 Resolution: | Keywords: Operating System: Linux | debugger bindings Type of failure: Incorrect result at runtime | Architecture: x86_64 Test Case: | (amd64) Blocking: | Difficulty: | Unknown | Blocked By: | Related Tickets: ------------------------------------------------+-------------------------- Changes (by ptc): * owner: => ptc Comment: Going to try to take a look at this. (I can't promise I'll try, but I'll try to try) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/6098#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7689: Primitive bitwise operations on Int#
by GHC 19 Aug '13

19 Aug '13

#7689: Primitive bitwise operations on Int# ------------------------------------------------+-------------------------- Reporter: jstolarek | Owner: Type: feature request | Status: closed Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.7 Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Test Case: primops/should_run/T7689.hs | Difficulty: Blocking: | Unknown | Blocked By: | Related Tickets: ------------------------------------------------+-------------------------- Changes (by jstolarek): * cc: jan.stolarek@… (added) * testcase: => primops/should_run/T7689.hs -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7689#comment:10> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8142: Panic on TypeFamilies compile
by GHC 19 Aug '13

19 Aug '13

#8142: Panic on TypeFamilies compile -----------------------------------+--------------------------------------- Reporter: zenzike | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Keywords: | Operating System: MacOS X Architecture: | Type of failure: Compile-time crash Unknown/Multiple | Test Case: Difficulty: Unknown | Blocking: Blocked By: | Related Tickets: | -----------------------------------+--------------------------------------- The following code produces a panic: {{{ > {-# LANGUAGE TypeFamilies #-} > module Bug where > tracer :: (Functor f, Coinductive f) => (c -> f c) -> (c -> f c) > tracer = h where h = (\(_, b) -> ((outI . fmap h) b)) . out > class Functor g => Coinductive g where > type Nu g :: * > out :: Nu g -> g (Nu g) > outI :: g (Nu g) -> Nu g }}} Compiling with ghc-7.6.3 gives: {{{ $ ghc Bug.lhs [1 of 1] Compiling Bug ( Bug.lhs, Bug.o ) ghc: panic! (the 'impossible' happened) (GHC version 7.6.3 for x86_64-apple-darwin): cgLookupPanic (probably invalid Core; try -dcore-lint) h{v aeN} [lid] static binds for: local binds for: main:Bug.outI{v r0} [gid[ClassOp]] main:Bug.out{v r1} [gid[ClassOp]] main:Bug.$p1Coinductive{v reT} [gid[ClassOp]] Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8142> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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