September 2013 - ghc-tickets

[GHC] #8382: ghc unhappy with program who want to program in C in haskell...
by GHC 29 Sep '13

29 Sep '13

#8382: ghc unhappy with program who want to program in C in haskell... ------------------------------------+------------------------------------- Reporter: wagle | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: None/Unknown Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ------------------------------------+------------------------------------- [1 of 1] Compiling Main ( test1.hs, test1.o ) ghc: panic! (the 'impossible' happened) (GHC version 7.6.3 for x86_64-apple-darwin): cgLookupPanic (probably invalid Core; try -dcore-lint) $dVector{v aFL} [lid] static binds for: local binds for: Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8382> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7993: ghc 7.6 (not 7.4) sometimes hangs at child process exit on s390x
by GHC 29 Sep '13

29 Sep '13

#7993: ghc 7.6 (not 7.4) sometimes hangs at child process exit on s390x -----------------------------------+--------------------------- Reporter: cjwatson | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Runtime System | Version: 7.6.3 Resolution: | Keywords: Operating System: Linux | Architecture: Other Type of failure: Other | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -----------------------------------+--------------------------- Changes (by pmylund): * cc: simonmar (added) Comment: I am experiencing the same issue, but on x86_64, and with my own application which uses GHC (7.6.2) threads. On occasion a thread will loop forever, and give the same kind of output from strace. (Is it the same issue?) Unfortunately I don't know how to begin troubleshooting. Whatever I do to try to reproduce it in a smaller test, the problem goes away if I don't use the combination of threads, STM and exception handling that I have in my larger application. I will keep trying and report back, but any input is appreciated. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7993#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8333: The impossible happened with TH + -fno-omit-interface-pragmas
by GHC 28 Sep '13

28 Sep '13

#8333: The impossible happened with TH + -fno-omit-interface-pragmas ------------------------------------+------------------------------------- Reporter: errge | Owner: Type: bug | Status: new Priority: high | Milestone: 7.8.1 Component: Compiler | Version: 7.7 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: GHCi crash Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ------------------------------------+------------------------------------- {{{ $ ./ghc-stage2 --interactive Test.hs GHCi, version 7.7.20130919: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer-gmp ... linking ... done. Loading package base ... linking ... done. [1 of 1] Compiling Main ( /home/errge/tmp/Test.hs, interpreted ) ghc-stage2: panic! (the 'impossible' happened) (GHC version 7.7.20130919 for i386-unknown-linux): toIfaceTickish Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug > Leaving GHCi. }}} With Test.hs being: {{{ {-# LANGUAGE TemplateHaskell #-} {-# OPTIONS_GHC -fno-omit-interface-pragmas #-} main :: IO () main = return () }}} I want to make TemplateHaskell generated non-essential info visible even with -O0. Compilation works, everything is fine. But I can't load source code like this with GHCi, which is annoying. Setting priority to high, since this is a crash. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8333> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8341: T8333 fails to pass because of stdout ghci version mismatch
by GHC 28 Sep '13

28 Sep '13

#8341: T8333 fails to pass because of stdout ghci version mismatch -------------------------------------------+------------------------------- Reporter: leroux | Owner: leroux Type: bug | Status: new Priority: normal | Milestone: Component: Test Suite | Version: 7.6.3 Keywords: | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Easy (less than 1 hour) | Type of failure: Blocked By: | None/Unknown Related Tickets: | Test Case: T8333 | Blocking: -------------------------------------------+------------------------------- {{{ -GHCi, version 7.7.20130919: http://www.haskell.org/ghc/ :? for help +GHCi, version 7.7.20130922: http://www.haskell.org/ghc/ :? for help }}} T8333 has a hardcoded version number which changes based on compilation time. Also, this test should also ignore {{{.ghci}}} files because it could alter the prompt. If there are any other tests that do a literal compare on ghci output, then they should all ignore {{{.ghci}}}. Problems will this test will come up in the future if GHCi output changes. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8341> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #5927: A type-level "implies" constraint on Constraints
by GHC 28 Sep '13

28 Sep '13

#5927: A type-level "implies" constraint on Constraints --------------------------------------------+------------------------------ Reporter: illissius | Owner: Type: feature request | Status: new Priority: normal | Milestone: 7.6.2 Component: Compiler (Type checker) | Version: 7.4.1 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 akio): * cc: tkn.akio@… (added) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5927#comment:11> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8375: Fix typo in sync-all script.
by GHC 28 Sep '13

28 Sep '13

#8375: Fix typo in sync-all script. ------------------------------------+-------------------------------------- Reporter: leroux | Owner: Type: bug | Status: new Priority: lowest | Milestone: Component: Build System | Version: 7.6.3 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: Documentation bug Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ------------------------------------+-------------------------------------- sync-all {{{ - print "\nWarning: You trying to 'pull' while on branch '$branch'.\n" + print "\nWarning: You are trying to 'pull' while on branch '$branch'.\n" }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8375> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7774: T5313 fails
by GHC 27 Sep '13

27 Sep '13

#7774: T5313 fails -------------------------------------+------------------------------------ Reporter: igloo | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: GHC API | Version: 7.7 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by simonmar): Geoff - is this still happening for you? -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7774#comment:5> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7771: RTS should provide stg_sel_n_noupd_closure
by GHC 27 Sep '13

27 Sep '13

#7771: RTS should provide stg_sel_n_noupd_closure -------------------------------------+------------------------------------ Reporter: simonpj | Owner: simonpj Type: bug | Status: closed Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.6.2 Resolution: worksforme | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Changes (by simonmar): * status: new => closed * resolution: => worksforme Comment: closing until/unless we find a real failure here. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7771#comment:6> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7741: Add SIMD support to x86/x86_64 NCG
by GHC 27 Sep '13

27 Sep '13

#7741: Add SIMD support to x86/x86_64 NCG -------------------------------------+------------------------------------ Reporter: shelarcy | Owner: Type: feature request | Status: new Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.7 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: #3557 -------------------------------------+------------------------------------ Comment (by carter): Assuming I have time over the coming months to cleanup the native codegen, this is one major subtask I hope to do. (For a number of reasons, we really need to have feature parity on ncg and llvm backends) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7741#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7762: when using lots of memory: internal error: evacuate(static): strange closure type 4
by GHC 27 Sep '13

27 Sep '13

#7762: when using lots of memory: internal error: evacuate(static): strange closure type 4 -----------------------------------+---------------------------------- Reporter: rthiemann | Owner: simonmar Type: bug | Status: new Priority: highest | Milestone: 7.8.1 Component: Runtime System | Version: 7.0.4 Resolution: | Keywords: Operating System: Linux | Architecture: x86_64 (amd64) Type of failure: Runtime crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -----------------------------------+---------------------------------- Changes (by simonmar): * owner: => simonmar * priority: normal => highest -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7762#comment:6> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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