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Re: [GHC] #7602: Threaded RTS performing badly on recent OS X (10.8?)
by GHC 06 Oct '13

06 Oct '13

#7602: Threaded RTS performing badly on recent OS X (10.8?) -----------------------------------+---------------------------------- Reporter: simonmar | Owner: thoughtpolice Type: bug | Status: new Priority: highest | Milestone: 7.8.1 Component: Runtime System | Version: 7.7 Resolution: | Keywords: Operating System: MacOS X | Architecture: x86_64 (amd64) Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: 7678 Blocking: | Related Tickets: -----------------------------------+---------------------------------- Comment (by ezyang): I must admit, I'm surprised that passing the thread-local state as a variable is not good performance-wise. At least within a function like evacuate, where everything ends up getting inlined into one giant function body, register pressure on x86_64 is low enough that I have seen (experimentally) that GCC is able to arrange for an extra parameter to not get spilled. Perhaps the situation is not so good across function call boundaries, but I don't see why it should necessarily be a problem. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7602#comment:29> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7374: rule not firing
by GHC 06 Oct '13

06 Oct '13

#7374: rule not firing -------------------------------------+------------------------------------ Reporter: igloo | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.6.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by nomeata): Looking at these many reports about rules not firing (e.g. #7398) due to other stuff happening earlier I wonder: Can’t we have a round of applying rules very early, before any inlining? -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7374#comment:6> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7685: :script command does not resolve ~
by GHC 06 Oct '13

06 Oct '13

#7685: :script command does not resolve ~ -------------------------------------+------------------------------------ Reporter: nomeata | Owner: Type: bug | Status: patch Priority: normal | Milestone: 7.8.1 Component: GHCi | Version: 7.6.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Changes (by nomeata): * cc: hvr (added) * status: new => patch Comment: Fix was easy; please merge from branch `WIP/T7685` or tell me to go ahead: http://git.haskell.org/ghc.git/commit/181975b01c1c84f22700e0e1ee64b9124b60c… -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7685#comment:2> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7650: can't use combining characters in identifiers
by GHC 06 Oct '13

06 Oct '13

#7650: can't use combining characters in identifiers ---------------------------------+--------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.6.2 Resolution: | Keywords: Operating System: Linux | Architecture: x86 Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: ---------------------------------+--------------------------- Comment (by nomeata): GHC already uses alex-3.1.0; that alone did not fix it. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7650#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7593: Unable to print exceptions of unicode identifiers
by GHC 06 Oct '13

06 Oct '13

#7593: Unable to print exceptions of unicode identifiers -------------------------------------------------+------------------------- Reporter: dagit | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.6.1 Resolution: | Keywords: Operating System: Windows | Architecture: Type of failure: Incorrect warning at | Unknown/Multiple compile-time | Difficulty: Test Case: | Unknown Blocking: | Blocked By: | Related Tickets: -------------------------------------------------+------------------------- Comment (by nomeata): Just FTR: It works with 7.6.1 on Linux, so the `Windows` attribute seems to be correct. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7593#comment:3> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7794: GHCi "Prelude.undefined" exceptions on ARM; ByteCodeItbls.mkJumpToAddr unimplemented
by GHC 06 Oct '13

06 Oct '13

#7794: GHCi "Prelude.undefined" exceptions on ARM; ByteCodeItbls.mkJumpToAddr unimplemented -------------------------------+--------------------------- Reporter: cjwatson | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: GHCi | Version: 7.6.2 Resolution: | Keywords: Operating System: Linux | Architecture: arm Type of failure: GHCi crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------+--------------------------- Changes (by nomeata): * cc: hvr (added) Comment: There is a related ticket/patch at #8380. Colin, what do you say to [ticket:8380#comment:4]? -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7794#comment:9> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #4135: Can't Quote Instance Associated Types in Template Haskell
by GHC 06 Oct '13

06 Oct '13

#4135: Can't Quote Instance Associated Types in Template Haskell ----------------------------------------------+---------------------------- Reporter: Ashley Yakeley | Owner: Type: bug | Status: new Priority: low | Milestone: 7.6.2 Component: Template Haskell | Version: 6.12.1 Resolution: | Keywords: Operating System: Linux | Architecture: x86_64 Type of failure: GHC rejects valid program | (amd64) Test Case: th/T4135 | Difficulty: Unknown Blocking: | Blocked By: 4230 | Related Tickets: ----------------------------------------------+---------------------------- Comment (by shelarcy): Replying to [comment:15 monoidal]: I see. I missed that. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4135#comment:16> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #8413: testsuite: Allow to skip performance tests
by GHC 06 Oct '13

06 Oct '13

#8413: testsuite: Allow to skip performance tests ------------------------------------+------------------------------------- Reporter: nomeata | Owner: nomeata Type: feature request | Status: new Priority: normal | Milestone: Component: Test Suite | 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: | ------------------------------------+------------------------------------- More often than not the output of the performance tests is in the way, rather than helping, or simply not relevant at a certain time of development (e.g. after changing some error message generating code in the compiler). It would be nice to have a way to skip such tests. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8413> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #4135: Can't Quote Instance Associated Types in Template Haskell
by GHC 06 Oct '13

06 Oct '13

#4135: Can't Quote Instance Associated Types in Template Haskell ----------------------------------------------+---------------------------- Reporter: Ashley Yakeley | Owner: Type: bug | Status: new Priority: low | Milestone: 7.6.2 Component: Template Haskell | Version: 6.12.1 Resolution: | Keywords: Operating System: Linux | Architecture: x86_64 Type of failure: GHC rejects valid program | (amd64) Test Case: th/T4135 | Difficulty: Unknown Blocking: | Blocked By: 4230 | Related Tickets: ----------------------------------------------+---------------------------- Comment (by monoidal): shelarcy: The program from comment:2 still does not compile in HEAD. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4135#comment:15> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #2289: Needless reboxing of values when returning from a tight loop
by GHC 06 Oct '13

06 Oct '13

#2289: Needless reboxing of values when returning from a tight loop -------------------------------------+------------------------------------- Reporter: dons | Owner: Type: bug | Status: new Priority: lowest | Milestone: 7.6.2 Component: Compiler | Version: 6.8.2 Resolution: | Keywords: boxing, loops, Operating System: Unknown/Multiple | performance Type of failure: Runtime | Architecture: Unknown/Multiple performance bug | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: #2387,#1600 -------------------------------------+------------------------------------- Comment (by jstolarek): Replying to [comment:34 carter]: > Was this one of the problems that were supposed to be addressed with loopification? No. I was planning to look into this bug during my internship, but in the end I didn't have enough time. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/2289#comment:35> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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