September 2013 - ghc-tickets

Re: [GHC] #910: --make should have a -j flag for parallel building
by GHC 09 Sep '13

09 Sep '13

#910: --make should have a -j flag for parallel building -------------------------------------+------------------------------------ Reporter: igloo | Owner: Type: feature request | Status: patch Priority: normal | Milestone: _|_ Component: Compiler | Version: 6.4.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: N/A | Blocked By: 8184, 8235 Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by Patrick Palka <patrick@…>): In [changeset:9c18ad7475bdc5bd5684a702c2d575ef9dd86fe1/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="9c18ad7475bdc5bd5684a702c2d575ef9dd86fe1" Merge branch 'ghc-parmake-gsoc' (#910) }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/910#comment:55> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #910: --make should have a -j flag for parallel building
by GHC 09 Sep '13

09 Sep '13

#910: --make should have a -j flag for parallel building -------------------------------------+------------------------------------ Reporter: igloo | Owner: Type: feature request | Status: patch Priority: normal | Milestone: _|_ Component: Compiler | Version: 6.4.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: N/A | Blocked By: 8184, 8235 Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by Patrick Palka <patrick@…>): In [changeset:8d9edfed74e8fd03933d4e3540f6372c269de538/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="8d9edfed74e8fd03933d4e3540f6372c269de538" Implement the parallel upsweep (#910) The parallel upsweep is the parallel counterpart to the default sequential upsweep. It attempts to compile modules in parallel by subdividing the work of the upsweep into parts that can be executed concurrently by multiple Haskell threads. In order to enable the parallel upsweep, the user has to pass the -jN flag to GHC, where N is an optional number denoting the number of jobs, or modules, to compile in parallel, like with GNU make. In GHC this just sets the number of capabilities to N. }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/910#comment:54> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7143: ghc-7.6.0.20120810-x86_64-windows.exe -> ghc can't figure out LLVM version
by GHC 09 Sep '13

09 Sep '13

#7143: ghc-7.6.0.20120810-x86_64-windows.exe -> ghc can't figure out LLVM version -------------------------------------------------+------------------------- Reporter: cetinsert | Owner: Type: bug | dterei Priority: high | Status: new Component: Compiler (LLVM) | Milestone: 7.8.1 Resolution: | Version: Operating System: Windows | 7.6.1-rc1 Type of failure: Incorrect warning at | Keywords: llvm compile-time | Architecture: Test Case: | Unknown/Multiple Blocking: | Difficulty: | Unknown | Blocked By: | Related Tickets: -------------------------------------------------+------------------------- Comment (by schyler): Punting for fix. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7143#comment:12> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #8022: Outdated documentation for the -fwarn-lazy-unlifted-bindings warning
by GHC 09 Sep '13

09 Sep '13

#8022: Outdated documentation for the -fwarn-lazy-unlifted-bindings warning -------------------------------------+------------------------------------ Reporter: asr | Owner: thoughtpolice Type: bug | Status: new Priority: highest | Milestone: 7.8.1 Component: Documentation | Version: 7.6.3 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): happy 1.18.11 uploaded -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8022#comment:13> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #8022: Outdated documentation for the -fwarn-lazy-unlifted-bindings warning
by GHC 09 Sep '13

09 Sep '13

#8022: Outdated documentation for the -fwarn-lazy-unlifted-bindings warning -------------------------------------+------------------------------------ Reporter: asr | Owner: thoughtpolice Type: bug | Status: new Priority: highest | Milestone: 7.8.1 Component: Documentation | Version: 7.6.3 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): Aha - I was looking at the `Int#` bindings in Happy's output, and didn't notice that `HappyCons` binding. I'll change Happy, but perhaps we don't want to turn this warning on by default just yet? Give the new Happy a chance to make it into the Haskell Platform, so that we don't force everyone to update Happy just to build GHC. It's an extra annoyance that we don't have to force on people. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8022#comment:12> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #8022: Outdated documentation for the -fwarn-lazy-unlifted-bindings warning
by GHC 09 Sep '13

09 Sep '13

#8022: Outdated documentation for the -fwarn-lazy-unlifted-bindings warning -------------------------------------+------------------------------------ Reporter: asr | Owner: thoughtpolice Type: bug | Status: new Priority: highest | Milestone: 7.8.1 Component: Documentation | Version: 7.6.3 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 simonpj): No, the warning looks right to me. As I understand it, we have {{{ data Happy_IntList = HappyCons Int# Happy_IntList ... f x = ...blah... where HappyCons p q = ...blah... }}} The warning is about the unlifted `(p::Int#)` in a pattern binding for a lifted type `Happy_IntList`. It's exactly like the third of your examples above {{{ I# x = blah -- Warning }}} So it looks to me as if GHC is generating a warning as advertised, and Happy is generating code that trips that warning. No? Simon -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8022#comment:11> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #910: --make should have a -j flag for parallel building
by GHC 09 Sep '13

09 Sep '13

#910: --make should have a -j flag for parallel building -------------------------------------+------------------------------------ Reporter: igloo | Owner: Type: feature request | Status: patch Priority: normal | Milestone: _|_ Component: Compiler | Version: 6.4.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: N/A | Blocked By: 8184, 8235 Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by rrnewton): Well, that's good news! When I can, I'll try a fresh start inside a VM and see what happens. Maybe this is a transient failure of some kind on my RHEL6 machine. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/910#comment:53> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7655: 7.6.2 Segmentation Fault/Bus Error in large exponentation
by GHC 08 Sep '13

08 Sep '13

#7655: 7.6.2 Segmentation Fault/Bus Error in large exponentation -------------------------------+---------------------------------- Reporter: Doug310 | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: GHCi | Version: 7.6.2 Resolution: | Keywords: exponentiation Operating System: MacOS X | Architecture: x86_64 (amd64) Type of failure: GHCi crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------+---------------------------------- Changes (by george.colpitts): * cc: george.colpitts@… (added) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7655#comment:11> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7655: 7.6.2 Segmentation Fault/Bus Error in large exponentation
by GHC 08 Sep '13

08 Sep '13

#7655: 7.6.2 Segmentation Fault/Bus Error in large exponentation -------------------------------+---------------------------------- Reporter: Doug310 | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: GHCi | Version: 7.6.2 Resolution: | Keywords: exponentiation Operating System: MacOS X | Architecture: x86_64 (amd64) Type of failure: GHCi crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------+---------------------------------- Changes (by george.colpitts): * keywords: => exponentiation -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7655#comment:10> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7655: 7.6.2 Segmentation Fault/Bus Error in large exponentation
by GHC 08 Sep '13

08 Sep '13

#7655: 7.6.2 Segmentation Fault/Bus Error in large exponentation -------------------------------+---------------------------------- Reporter: Doug310 | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: GHCi | Version: 7.6.2 Resolution: | Keywords: Operating System: MacOS X | Architecture: x86_64 (amd64) Type of failure: GHCi crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------+---------------------------------- Comment (by george.colpitts): I can reproduce the first, 12345678901234567890 ^ 12345 the bus error on 10.8.4 with ghc 7.6.3, i.e. the Haskell platform. I can't reproduce the second, 2384729837498237^23455 -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7655#comment:9> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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