- ghc-tickets - Haskell.org

Re: [GHC] #2132: Optimise nested comparisons
by GHC 21 Apr '13

21 Apr '13

#2132: Optimise nested comparisons --------------------------------------+------------------------------------- Reporter: simonpj | Owner: Type: bug | Status: new Priority: normal | Milestone: _|_ Component: Compiler | Version: 6.8.2 Resolution: | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: Runtime performance bug | Difficulty: Unknown Testcase: | Blockedby: Blocking: | Related: --------------------------------------+------------------------------------- Changes (by carter): * cc: carter.schonwald@… (added) -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2132#comment:34> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #4101: Primitive constant unfolding
by GHC 21 Apr '13

21 Apr '13

#4101: Primitive constant unfolding -------------------------+-------------------------------------------------- Reporter: malosh | Owner: Type: bug | Status: new Priority: low | Milestone: 7.6.2 Component: Compiler | Version: 6.12.2 Keywords: | Os: Unknown/Multiple Architecture: x86 | Failure: Runtime performance bug Difficulty: | Testcase: Blockedby: | Blocking: Related: | -------------------------+-------------------------------------------------- Changes (by carter): * cc: carter.schonwald@… (added) -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4101#comment:10> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #5615: ghc produces poor code for `div` with constant powers of 2.
by GHC 21 Apr '13

21 Apr '13

#5615: ghc produces poor code for `div` with constant powers of 2. -------------------------+-------------------------------------------------- Reporter: Lennart | Owner: daniel.is.fischer Type: bug | Status: new Priority: normal | Milestone: 7.6.2 Component: Compiler | Version: 7.4.1-rc1 Keywords: | Os: Unknown/Multiple Architecture: x86 | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | -------------------------+-------------------------------------------------- Changes (by carter): * cc: carter.schonwald@… (added) -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5615#comment:15> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #7848: Missing parentheses and backticks
by GHC 21 Apr '13

21 Apr '13

#7848: Missing parentheses and backticks ----------------------------------------------+----------------------------- Reporter: monoidal | Owner: Type: bug | Status: new Priority: normal | Component: Compiler Version: 7.6.2 | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: Incorrect warning at compile-time | Blockedby: Blocking: | Related: ----------------------------------------------+----------------------------- In several cases, GHC does not output parentheses or backticks in error messages. For example, compiling this contrived file {{{ data A = (:&&) Int Int | A Int Int x (+) ((&)@z) ((:&&) a b) (c :&& d) (e `A` f) (A g h) = y where infixl 3 `y` y _ = (&) {-# INLINE (&) #-} {-# SPECIALIZE (&) :: a #-} (&) = x }}} gives an error message containing: {{{ x + (&@z) (:&& a b) (c :&& d) (e A f) (A g h) = y where infixl 3 y y _ = (&) {-# INLINE & #-} {-# SPECIALIZE & :: a #-} }}} Attached patch fixes this issue in several places. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7848> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #7764: Link Error on windows
by GHC 20 Apr '13

20 Apr '13

#7764: Link Error on windows ------------------------+--------------------------------------------------- Reporter: Ericson2314 | Owner: Type: bug | Status: new Priority: normal | Component: Compiler Version: 7.4.2 | Keywords: Os: Windows | Architecture: x86 Failure: Other | Blockedby: Blocking: | Related: ------------------------+--------------------------------------------------- specific commit in question: https://github.com/Ericson2314/Codec.Archive.CnCMix/commit/eb9c843e4d56068c… When I try to compile my project I get these I get errors at link-time: {{{ C:\Program Files\Haskell Platform\2012.4.0.0\lib\base-4.5.1.0/libHSbase-4.5.1.0.a(Data__683.o):fake:(.text+0x22): undefined reference to `base_DataziData_aonsConstr_closure' C:\Program Files\Haskell Platform\2012.4.0.0\lib\base-4.5.1.0/libHSbase-4.5.1.0.a(Data__683.o):fake:(.data+0x4): undefined reference to `base_DataziData_aonsConstr_closure' collect2: ld returned 1 exit status }}} I am not using any foreign functions, and unresolved symbol seems to be part of GHC so it looks like a bug to me. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7764> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7363: runghc leaks space in IO
by GHC 20 Apr '13

20 Apr '13

#7363: runghc leaks space in IO --------------------------------------+------------------------------------- Reporter: Jafet | Owner: igloo Type: bug | Status: closed Priority: normal | Milestone: 7.8.1 Component: None | Version: 7.6.1 Resolution: worksforme | Keywords: Os: Unknown/Multiple | Architecture: x86_64 (amd64) Failure: Runtime performance bug | Difficulty: Unknown Testcase: | Blockedby: Blocking: | Related: --------------------------------------+------------------------------------- Changes (by igloo): * status: new => closed * resolution: => worksforme Comment: I can reproduce the memory usage with runghc, but also with {{{ ghc q.hs -e main }}} (perhaps when you tested, you were picking up compiled code rather than interpreting?) so I think this is just the memory usage of interpreted, non-optimised code. If you still think there's something fishy going on, please reopen and give exactly what sources you're using and what commands you're running, so that I can try to reproduce it. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7363#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7373: When building GHC: Failed to load interface for `GHC.Fingerprint'
by GHC 20 Apr '13

20 Apr '13

#7373: When building GHC: Failed to load interface for `GHC.Fingerprint' -------------------------------+-------------------------------------------- Reporter: igloo | Owner: igloo Type: bug | Status: closed Priority: normal | Milestone: 7.8.1 Component: libraries/base | Version: 7.6.1 Resolution: wontfix | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: None/Unknown | Difficulty: Unknown Testcase: | Blockedby: Blocking: | Related: -------------------------------+-------------------------------------------- Changes (by igloo): * status: new => closed * resolution: => wontfix Comment: OK, it looks like this goes wrong because of the way we interleave the building of packages when building GHC. GHC assumes that if we're building one package, then packages that it depends on have already been built and are complete. Therefore, even if a module in the other package has a `.hs- boot` file, the real `.hs` file will also have been compiled and there will be a full `.hi` file. That seems like a reasonable assumption to make, and it doesn't look like anything actually fails as a result of this, so I don't think we need to take any action. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7373#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #7709: ios patch no 7: Omit ghc-pwd from final stage when cross compiling
by GHC 20 Apr '13

20 Apr '13

#7709: ios patch no 7: Omit ghc-pwd from final stage when cross compiling ------------------------------+--------------------------------------------- Reporter: StephenBlackheath | Owner: Type: bug | Status: new Priority: normal | Component: Compiler Version: 7.7 | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: None/Unknown | Blockedby: Blocking: | Related: ------------------------------+--------------------------------------------- Without this patch, we get this error when cross compiling: {{{ "cp" -p utils/ghc-pwd/dist-install/build/tmp/ghc-pwd inplace/bin/ghc-pwd cp: utils/ghc-pwd/dist-install/build/tmp/ghc-pwd: No such file or directory make[1]: *** [inplace/bin/ghc-pwd] Error 1 make: *** [all] Error 2 }}} -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7709> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7531: after manualy installing array-0.4.0.1
by GHC 20 Apr '13

20 Apr '13

#7531: after manualy installing array-0.4.0.1 -----------------------------+---------------------------------------------- Reporter: guest | Owner: igloo Type: bug | Status: closed Priority: normal | Milestone: 7.8.1 Component: Package system | Version: 7.6.1 Resolution: worksforme | Keywords: Os: Windows | Architecture: x86 Failure: None/Unknown | Difficulty: Unknown Testcase: | Blockedby: Blocking: | Related: -----------------------------+---------------------------------------------- Changes (by igloo): * status: new => closed * resolution: => worksforme Comment: I can't reproduce this, and I don't think it'll be worth investigating it with 7.4. If you find a repeatable way to reproduce it with a more recent compiler, please file a ticket. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7531#comment:6> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7531: after manualy installing array-0.4.0.1
by GHC 20 Apr '13

20 Apr '13

#7531: after manualy installing array-0.4.0.1 -------------------------------+-------------------------------------------- Reporter: guest | Owner: igloo Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: Package system | Version: 7.6.1 Keywords: | Os: Windows Architecture: x86 | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: | -------------------------------+-------------------------------------------- Changes (by igloo): * architecture: x86_64 (amd64) => x86 -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7531#comment:5> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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