September 2015 - ghc-tickets

Re: [GHC] #3990: UNPACK doesn't unbox data families
by GHC 21 Sep '15

21 Sep '15

#3990: UNPACK doesn't unbox data families -------------------------------------+------------------------------------- Reporter: rl | Owner: Type: bug | Status: new Priority: low | Milestone: 8.0.1 Component: Compiler | Version: 7.0.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by vagarenko): * cc: vagarenko (added) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/3990#comment:19> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #8010: Add forkOSUnmasked (patch)
by GHC 21 Sep '15

21 Sep '15

#8010: Add forkOSUnmasked (patch) -------------------------------------+------------------------------------- Reporter: joeyadams | Owner: Type: feature request | Status: patch Priority: normal | Milestone: 8.0.1 Component: Core Libraries | Version: 7.7 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by thomie): * status: infoneeded => patch -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8010#comment:10> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7133: GHCi: strange behaviour after CTRL-C, followed by 'hPutChar: resource vanished (Broken Pipe)' when quitting
by GHC 21 Sep '15

21 Sep '15

#7133: GHCi: strange behaviour after CTRL-C, followed by 'hPutChar: resource vanished (Broken Pipe)' when quitting -------------------------------------+------------------------------------- Reporter: DuncanMortimer | Owner: tibbe Type: bug | Status: closed Priority: normal | Milestone: 8.0.1 Component: GHCi | Version: 7.4.1 Resolution: worksforme | Keywords: Operating System: MacOS X | Architecture: | Unknown/Multiple Type of failure: Other | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Changes (by thomie): * status: infoneeded => closed * resolution: => worksforme Comment: Replying to [comment:5 carter]: > I can't reproduce this in 7.8.3 on OS X 10.9 with the 10.9 terminal app Closing as worksforme. DuncanMortimer: Please reopen if this is still a problem with the latest release of GHC. Thanks. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7133#comment:8> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #5108: Allow unicode sub/superscript symbols in operators (was: Allow unicode sub/superscript symbols in both identifiers and operators)
by GHC 21 Sep '15

21 Sep '15

#5108: Allow unicode sub/superscript symbols in operators -------------------------------------+------------------------------------- Reporter: | Owner: mikhail.vorozhtsov | Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.1 (Parser) | Keywords: lexer Resolution: | unicode Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #10196 | Differential Revisions: -------------------------------------+------------------------------------- Changes (by thomie): * status: infoneeded => new * milestone: 8.0.1 => Comment: `vₐ = 1` is now accepted, but `m >>=₁ f` still isn't. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5108#comment:19> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #9615: GHC panic: Loading temp shared object failed
by GHC 21 Sep '15

21 Sep '15

#9615: GHC panic: Loading temp shared object failed -------------------------------------+------------------------------------- Reporter: nh2 | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.3 Keywords: | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Unknown | Type of failure: Compile- Blocked By: | time crash Related Tickets: | Test Case: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- (Seemingly) Randomly happened when building with cabal (before many builds were fine in the same project): {{{ <no location info>: ghc: panic! (the 'impossible' happened) (GHC version 7.8.3 for x86_64-unknown-linux): Loading temp shared object failed: /tmp/ghc6776_0/ghc6776_359.so: undefined symbol: ganetizm2zi12_GanetiziUtils_newUUID1_info }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9615> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #9704: GHC fails with "Loading temp shared object failed"
by GHC 21 Sep '15

21 Sep '15

#9704: GHC fails with "Loading temp shared object failed" -------------------------------------+------------------------------------- Reporter: MaxGabriel | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.3 Keywords: | Operating System: MacOS X Architecture: Unknown/Multiple | Type of failure: Compile- Difficulty: Unknown | time crash Blocked By: | Test Case: Related Tickets: 9074 | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- While developing Yesod project on GHC 7.8.3, `cabal install --force- reinstalls` failed with the following error: {{{ [9 of 9] Compiling Application ( Application.hs, dist/dist-sandbox- e4ea4713/build/Application.o ) ghc: panic! (the 'impossible' happened) (GHC version 7.8.3 for x86_64-apple-darwin): Loading temp shared object failed: dlopen(/var/folders/qk/6s42bj3n6g30fyqf6mc2x_c80000gn/T/ghc13386_0/ghc13386_53.dylib, 9): Symbol not found: _aesonzm0zi8zi0zi1_DataziAesonziTypesziInternal_zdsfromList1_closure Referenced from: /var/folders/qk/6s42bj3n6g30fyqf6mc2x_c80000gn/T/ghc13386_0/ghc13386_53.dylib Expected in: flat namespace in /var/folders/qk/6s42bj3n6g30fyqf6mc2x_c80000gn/T/ghc13386_0/ghc13386_53.dylib Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug cabal: Error: some packages failed to install: MyBlog-0.0.0 failed during the building phase. The exception was: ExitFailure 1 }}} (Full output at https://gist.github.com/MaxGabriel/847561107e4ee2e869f1. Verbose output at https://gist.github.com/MaxGabriel/10c2c3c253815b3f392a) Following compilation, both aeson-0.8.0.1 and aeson-0.8.0.2 are present in the sandbox. Running `cabal install` again yields the same error (full output at https://gist.github.com/MaxGabriel/9aa530105d68a613de11) The code for the project as it was when the panic happened is available here: https://github.com/MaxGabriel/MyBlog-GHC-Panic Is there more information I could provide to diagnose the bug? I'll probably wipe the sandbox and try recompiling in a bit. Version info: OS : OS X 10.10 (14A389) (Yosemite) Cabal: cabal-install version 1.20.0.3 using version 1.20.0.1 of the Cabal library GHC: The Glorious Glasgow Haskell Compilation System, version 7.8.3 -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9704> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #9906: Warning generated by hscpp code have unhelpful file names
by GHC 21 Sep '15

21 Sep '15

#9906: Warning generated by hscpp code have unhelpful file names -------------------------------------+------------------------------------- Reporter: tibbe | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Driver | Version: 7.8.3 Keywords: | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Unknown | Type of failure: Blocked By: | None/Unknown Related Tickets: | Test Case: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- I've started seeing this when compiling cabal with 7.8.3: {{{ [64 of 80] Compiling Distribution.Simple.GHC ( Distribution/Simple/GHC.hs, dist/build/Distribution/Simple/GHC.o ) /var/folders/00/0__yr000h01000cxqpysvccm0019bv/T/ghc43003_0/ghc43003_30.hscpp:270:1: Warning: The import of ‘LibraryName’ from module ‘Distribution.Simple.LocalBuildInfo’ is redundant /var/folders/00/0__yr000h01000cxqpysvccm0019bv/T/ghc43003_0/ghc43003_30.hscpp:308:1: Warning: The import of ‘Language’ from module ‘Language.Haskell.Extension’ is redundant /var/folders/00/0__yr000h01000cxqpysvccm0019bv/T/ghc43003_0/ghc43003_30.hscpp:318:1: Warning: The import of ‘getTemporaryDirectory, getDirectoryContents’ from module ‘System.Directory’ is redundant /var/folders/00/0__yr000h01000cxqpysvccm0019bv/T/ghc43003_0/ghc43003_30.hscpp:325:1: Warning: The import of ‘System.IO’ is redundant except perhaps to import instances from ‘System.IO’ To import instances alone, use: import System.IO() /var/folders/00/0__yr000h01000cxqpysvccm0019bv/T/ghc43003_0/ghc43003_30.hscpp:1092:5: Warning: Pattern match(es) are non-exhaustive In an equation for ‘supportRPaths’: Patterns not matched: Ghcjs [65 of 80] Compiling Distribution.Simple.GHCJS ( Distribution/Simple/GHCJS.hs, dist/build/Distribution/Simple/GHCJS.o ) }}} The `/var/folders/00/0__yr000h01000cxqpysvccm0019bv/T/ghc43003_0/ghc43003_30.hscpp` file name isn't really helpful. I haven't seen this before so I'm guessing this is a regression. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9906> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #9978: DEBUG is always replaced as 1 when CPP pragma is on
by GHC 21 Sep '15

21 Sep '15

#9978: DEBUG is always replaced as 1 when CPP pragma is on -------------------------------------+------------------------------------- Reporter: danilo2 | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.4 (Parser) | Operating System: Unknown/Multiple Keywords: | Type of failure: None/Unknown Architecture: | Blocked By: Unknown/Multiple | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Trying to compile the following code: {{{ {-# LANGUAGE CPP #-} data Level = DEBUG }}} results in error: {{{ Test.hs:2:14: Illegal literal in type (use DataKinds to enable): 1 }}} which is of course an error. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9978> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #10295: Putting SCC in heavily inlined code results in "error: redefinition of global"
by GHC 21 Sep '15

21 Sep '15

#10295: Putting SCC in heavily inlined code results in "error: redefinition of global" -------------------------------------+------------------------------------- Reporter: yongqli | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Blocked By: Test Case: | Related Tickets: Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- {{{ /usr/bin/opt: /tmp/ghc27119_0/ghc27119_272.ll:21159722:1: error: redefinition of global named '@c17Kd9_info' @c17Kd9_info = alias internal i8* bitcast (void (i64*, i64*, i64*, i64, i64, i64, i64, i64, i64, i64)* @c17Kd9_info$def to i8*) ^ <no location info>: ghc: phase `LLVM Optimiser' failed (exitcode = 1) }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10295> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #10459: -fsimple-tick-factor required
by GHC 21 Sep '15

21 Sep '15

#10459: -fsimple-tick-factor required -------------------------------------+------------------------------------- Reporter: mikehat | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Keywords: fsimple- | Operating System: Linux tick-factor | Type of failure: None/Unknown Architecture: | Blocked By: Unknown/Multiple | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- {{{ ghc: panic! (the 'impossible' happened) (GHC version 7.6.3 for x86_64-unknown-linux): Simplifier ticks exhausted When trying UnfoldingDone base:Foreign.Storable.$fStorableWord8_$cpokeByteOff{v rsA} [gid] To increase the limit, use -fsimpl-tick-factor=N (default 100) If you need to do this, let GHC HQ know, and what factor you needed To see detailed counts use -ddump-simpl-stats Total ticks: 10400 }}} -fsimple-tick-factor=115 was required See the 'css' branch of https://github.com/mikehat/blaze-markup.git -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10459> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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