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[GHC] #9515: Deprecate -XExplicitForAll
by GHC 28 Sep '14

28 Sep '14

#9515: Deprecate -XExplicitForAll -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | 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: -------------------------------------+------------------------------------- The problem is that it uses the same syntax as -XScopedTypeVariables to mean something a bit different, and incompatible. -XExplicitForAll is of rather limited utility, whereas -XScopedTypeVariables is a wonderful thing. Confusion is bad. {{{#!hs f :: forall a . a -> [a] f a = let g :: a -> a g x = x in g [a] }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9515> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #9326: Minor change to list comprehension structure leads to poor performance
by GHC 28 Sep '14

28 Sep '14

#9326: Minor change to list comprehension structure leads to poor performance -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.3 Keywords: | Differential Revisions: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------- According to [http://stackoverflow.com/questions/24690406/haskell-list- comprehension-speed-inconsistencies] ''and my own testing'', the code in compspeed.hs reliably runs several times faster than the code in compspeedslow.hs with ghc 7.8.3, although this apparently does not happen with 7.6.3. The basic distinction is between a list comprehension of the form {{{ [(a,h) | ..., let h = expr] }}} and {{{ [(a,expr) | ...] }}} The core produced by -ddump-simpl is completely different in each case, so I can't figure out what's going on. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9326> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7987: GHC Build Error
by GHC 28 Sep '14

28 Sep '14

#7987: GHC Build Error ----------------------------------------------+--------------------------- Reporter: singpolyma | Owner: Type: bug | Status: closed Priority: normal | Milestone: 7.10.1 Component: Compiler | Version: 7.7 Resolution: invalid | Keywords: Operating System: Unknown/Multiple | Architecture: x86 Type of failure: Building GHC failed | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: Differential Revisions: | ----------------------------------------------+--------------------------- Comment (by rwbarton): I think this actually is fixed by 5fb72555f7b7ab67a33583f33ad9160761ca434f which I happened to come across today for unrelated reasons. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7987#comment:8> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7987: GHC Build Error
by GHC 28 Sep '14

28 Sep '14

#7987: GHC Build Error ----------------------------------------------+--------------------------- Reporter: singpolyma | Owner: Type: bug | Status: closed Priority: normal | Milestone: 7.10.1 Component: Compiler | Version: 7.7 Resolution: invalid | Keywords: Operating System: Unknown/Multiple | Architecture: x86 Type of failure: Building GHC failed | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: Differential Revisions: | ----------------------------------------------+--------------------------- Changes (by singpolyma): * status: infoneeded => closed * resolution: => invalid Comment: Not sure if it's still present, and I worked around it for what I was doing at the time, so this can be closed, I think. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7987#comment:7> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1405: Make ghc (stage1) be compilable by non-GHC
by GHC 27 Sep '14

27 Sep '14

#1405: Make ghc (stage1) be compilable by non-GHC -------------------------------------+------------------------------------- Reporter: Isaac | Owner: Dupree | Status: new Type: task | Milestone: ⊥ Priority: normal | Version: 6.6.1 Component: Compiler | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: | Related Tickets: None/Unknown | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by thomie): In [changeset:"206b4dec78250efef3cd927d64dc6cbc54a16c3d/ghc"]: {{{ #!CommitTicketReference repository="ghc" revision="206b4dec78250efef3cd927d64dc6cbc54a16c3d" }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/1405#comment:19> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #4879: Deprecate exports
by GHC 27 Sep '14

27 Sep '14

#4879: Deprecate exports -------------------------------------+------------------------------------- Reporter: basvandijk | Owner: Type: feature | Status: new request | Milestone: 7.10.1 Priority: normal | Version: 7.0.1 Component: Compiler | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: | Related Tickets: None/Unknown | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by hvr): * cc: ekmett (added) Comment: With all the class generalisation work going on in `base`, this may be desirable to have for GHC 7.10 -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4879#comment:17> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #1487: unix package: test needed for getLoginName
by GHC 27 Sep '14

27 Sep '14

#1487: unix package: test needed for getLoginName -------------------------------------+------------------------------------- Reporter: simonmar | Owner: Type: bug | Status: new Priority: lowest | Milestone: Component: | Version: libraries/unix | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: Linux | Difficulty: Easy (less than 1 Type of failure: Incorrect | hour) result at runtime | Blocked By: Test Case: | Related Tickets: #8293 Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by thomie): A [http://www.haskell.org/pipermail/libraries/2014-September/023798.html library proposal] to solve this. The test has been [https://github.com/haskell/unix/commit/e7ce4a66113a910af6327b3192e9ce4879a4… disabled] again for the time being. -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/1487#comment:26> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #4817: Missing new flags description in the user guide
by GHC 26 Sep '14

26 Sep '14

#4817: Missing new flags description in the user guide -------------------------------------+------------------------------------- Reporter: andressr | Owner: Type: bug | Status: closed Priority: normal | Milestone: 7.4.2 Component: | Version: 7.4.1 Documentation | Keywords: Resolution: fixed | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: | Related Tickets: Documentation bug | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by asr): * cc: asr (added) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4817#comment:6> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #5806: Make TimeLocale an instance of Def
by GHC 26 Sep '14

26 Sep '14

#5806: Make TimeLocale an instance of Def -------------------------------------+------------------------------------- Reporter: chrisdone | Owner: Type: feature | Status: closed request | Milestone: Priority: normal | Version: 7.2.2 Component: libraries | Keywords: /old-time | Architecture: Unknown/Multiple Resolution: wontfix | Difficulty: Unknown Operating System: | Blocked By: Unknown/Multiple | Related Tickets: Type of failure: | None/Unknown | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by asr): * cc: andres.sicard.ramirez@… (removed) * cc: asr (added) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5806#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #4489: The new flag -fwarn-missing-import-lists does not recognize the (..) form of import.
by GHC 26 Sep '14

26 Sep '14

#4489: The new flag -fwarn-missing-import-lists does not recognize the (..) form of import. -------------------------------------+------------------------------------- Reporter: andressr | Owner: Type: bug | Status: closed Priority: normal | Milestone: 7.4.1 Component: Compiler | Version: Resolution: fixed | Keywords: Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Unknown Type of failure: | Blocked By: None/Unknown | Related Tickets: Test Case: | rename/should_compile/T4489 | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by asr): * cc: andres.sicard.ramirez@… (removed) * cc: asr (added) -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/4489#comment:7> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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