February 2013 - ghc-tickets

Re: [GHC] #4177: GHCi should allow custom definition of print for implicit output
by GHC 01 Feb '13

01 Feb '13

#4177: GHCi should allow custom definition of print for implicit output -------------------------------+-------------------------------------------- Reporter: ezyang | Owner: Type: feature request | Status: closed Priority: low | Milestone: 7.6.2 Component: GHCi | Version: 6.10.4 Resolution: duplicate | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: None/Unknown | Difficulty: Testcase: | Blockedby: Blocking: | Related: -------------------------------+-------------------------------------------- Changes (by monoidal): * status: new => closed * resolution: => duplicate Comment: Fixed in GHC 7.6.1, see #5461. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4177#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #984: Syntax error shows in the wrong position
by GHC 01 Feb '13

01 Feb '13

#984: Syntax error shows in the wrong position --------------------------------+------------------------------------------- Reporter: guest | Owner: Type: bug | Status: closed Priority: low | Milestone: _|_ Component: Compiler (Parser) | Version: 6.4.2 Resolution: fixed | Keywords: syntax parse case do Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: None/Unknown | Difficulty: Unknown Testcase: T984 | Blockedby: Blocking: | Related: --------------------------------+------------------------------------------- Changes (by igloo): * testcase: N/A => T984 -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/984#comment:10> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #2222: Template Haskell: reify returns incorrect types when ommiting type signatures
by GHC 01 Feb '13

01 Feb '13

#2222: Template Haskell: reify returns incorrect types when ommiting type signatures -------------------------------+-------------------------------------------- Reporter: fons | Owner: Type: bug | Status: closed Priority: normal | Milestone: _|_ Component: Template Haskell | Version: 6.8.2 Resolution: fixed | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: None/Unknown | Difficulty: Unknown Testcase: T2222 | Blockedby: Blocking: | Related: -------------------------------+-------------------------------------------- Changes (by igloo): * status: new => closed * testcase: => T2222 * resolution: => fixed Comment: I think it's now all as expected. I've added a test. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2222#comment:6> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #7432: haddock : panic! (the 'impossible' happened)
by GHC 01 Feb '13

01 Feb '13

#7432: haddock : panic! (the 'impossible' happened) ----------------------------+----------------------------------------------- Reporter: erikd | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 7.7 Resolution: worksforme | Keywords: Os: Linux | Architecture: powerpc64 Failure: Runtime crash | Difficulty: Unknown Testcase: | Blockedby: Blocking: | Related: ----------------------------+----------------------------------------------- Changes (by igloo): * status: infoneeded => closed * resolution: => worksforme Comment: No response for 2 months, so closing. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7432#comment:4> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #984: Syntax error shows in the wrong position
by GHC 01 Feb '13

01 Feb '13

#984: Syntax error shows in the wrong position --------------------------------+------------------------------------------- Reporter: guest | Owner: Type: bug | Status: closed Priority: low | Milestone: _|_ Component: Compiler (Parser) | Version: 6.4.2 Resolution: fixed | Keywords: syntax parse case do Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: None/Unknown | Difficulty: Unknown Testcase: N/A | Blockedby: Blocking: | Related: --------------------------------+------------------------------------------- Changes (by igloo): * status: new => closed * resolution: => fixed Comment: We now get the error above. Only time will tell whether this causes more confusion (in cases where the suggestion is wrong) than it resolves. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/984#comment:9> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #984: Syntax error shows in the wrong position
by GHC 01 Feb '13

01 Feb '13

#984: Syntax error shows in the wrong position -------------------------------------+-------------------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: low | Milestone: _|_ Component: Compiler (Parser) | Version: 6.4.2 Keywords: syntax parse case do | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: N/A Blockedby: | Blocking: Related: | -------------------------------------+-------------------------------------- Comment(by ian@…): commit d2169af1b312c698ade627c26416a7527f1c46b1 {{{ Author: Ian Lynagh <ian(a)well-typed.com> Date: Fri Feb 1 15:23:39 2013 +0000 Improve an error message; fixes #984 This code: f _ = do x <- computation case () of _ -> result <- computation case () of () -> undefined Now gives this error: Parse error in pattern: case () of { _ -> result } Possibly caused by a missing 'do'? compiler/parser/Parser.y.pp | 22 +++++---- compiler/parser/RdrHsSyn.lhs | 108 ++++++++++++++++++++++-------------------- 2 files changed, 70 insertions(+), 60 deletions(-) }}} -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/984#comment:8> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #459: Bad parse error message
by GHC 01 Feb '13

01 Feb '13

#459: Bad parse error message --------------------------------+------------------------------------------- Reporter: nobody | Owner: Type: bug | Status: closed Priority: normal | Milestone: _|_ Component: Compiler (Parser) | Version: 6.4.1 Resolution: fixed | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: Other | Difficulty: Unknown Testcase: | Blockedby: Blocking: | Related: --------------------------------+------------------------------------------- Changes (by igloo): * status: new => closed * resolution: None => fixed Comment: The error is now {{{ parse error (possibly incorrect indentation or mismatched brackets) }}} which is I think as we're going to get. While we can see that it's obviously a bracket problem rather than an indentation problem in this small example, in general it's hard for GHC to suggest the right one, so suggesting both seems reasonable. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/459#comment:12> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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[GHC] #7591: CodeGen.Platform.hs not including ghcautoconf.h as it should, breaks ARMv5 compiler
by GHC 01 Feb '13

01 Feb '13

#7591: CodeGen.Platform.hs not including ghcautoconf.h as it should, breaks ARMv5 compiler --------------------------------+------------------------------------------- Reporter: StephenBlackheath | Owner: Type: bug | Status: new Priority: normal | Component: Compiler Version: 7.7 | Keywords: arm cross llvm Os: Unknown/Multiple | Architecture: arm Failure: Building GHC failed | Blockedby: Blocking: | Related: --------------------------------+------------------------------------------- MachRegs.h requires ghcautoconf.h to be included before it, because, in the case of ARM processors, it needs to know what ARM variant is being used. This patch fixes that in includes/CodeGen.Platform.hs, otherwise there is a mismatch between the compiler and llvm. Perhaps it needs to be made more robust by instead including ghcautoconf.h from MachRegs.h? Otherwise someone else could easily break it. I originally didn't do this, because it wasn't done anywhere else. Suggested fix attached. -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7591> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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Re: [GHC] #4937: Remove indirections caused by sum types, such as Maybe
by GHC 01 Feb '13

01 Feb '13

#4937: Remove indirections caused by sum types, such as Maybe -------------------------------+-------------------------------------------- Reporter: tibbe | Owner: Type: feature request | Status: new Priority: normal | Milestone: 7.6.2 Component: Compiler | Version: 7.0.1 Resolution: | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: None/Unknown | Difficulty: Testcase: | Blockedby: Blocking: | Related: -------------------------------+-------------------------------------------- -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4937#comment:18> 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 01 Feb '13

01 Feb '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 Keywords: boxing, loops, performance | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: Runtime performance bug Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: #2387,#1600 | -------------------------------------------+-------------------------------- Changes (by liyang): * cc: hackage.haskell.org@… (added) -- Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/2289#comment:32> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler

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