Re: [GHC] #4143: Data.Set can overflow Int on balance check

[GHC]

#4143: Data.Set can overflow Int on balance check
-+--
Reporter:  japple|  Owner:   
Type:  bug   | Status:  closed   
Priority:  normal|  Component:  libraries (other)
 Version:  6.12.2| Resolution:  invalid  
Keywords:  containers, overflow  | Os:  Unknown/Multiple 
Testcase:|   Architecture:  Unknown/Multiple 
 Failure:  Runtime crash |  
-+--

Comment(by japple):

 Let me just add that I don't ever calculate node sizes, so I can't vouch
 for that part of the calculation.

 Although I expect that this bug can't be triggered as things currently
 stand, I think it is a boobytrap for a few reasons. Each one of these
 seems unlikely, but given that there are a few of them, and that Edward
 worked out a possible way to check and correct the overflow without using
 Integers, (change the '*' to a `div` on the other side) I think this issue
 may still be worth looking over. Possible ways it could pop up in the
 future:

  * Data.Set gets some more space-efficient construction functions like
 "replicate" in Data.Seq
  * The constants for bounding balance increase dramatically
  * The Bin constructor is made lazy in its children

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Re: [GHC] #4143: Data.Set can overflow Int on balance check

[GHC]

#4143: Data.Set can overflow Int on balance check
-+--
Reporter:  japple|  Owner:   
Type:  bug   | Status:  closed   
Priority:  normal|  Component:  libraries (other)
 Version:  6.12.2| Resolution:  invalid  
Keywords:  containers, overflow  | Os:  Unknown/Multiple 
Testcase:|   Architecture:  Unknown/Multiple 
 Failure:  Runtime crash |  
-+--
Changes (by guest):

  * status:  new => closed
  * resolution:  => invalid


Comment:

 With Jim on the #haskell channel, we worked out that this case can never
 actually occur.

 On a 32 bit machine, the size of a Bin node is at least 24 bytes, even
 discounting the size of the payload in the set which needs to be distinct.

 tag + forwarding pointer + size + value pointer + left pointer + right
 pointer

 The problem can only manifest itself when you are faced with more than ~
 500 million elements. But that requires more than the amount of address
 space available to store, even if you stored nothing else in memory, and
 didn't have to pay for the elements (which you might be able to avoid by
 using a free monad over Set)

 On a 64 bit machine, you don't even get that close, since no 64 bit
 machine extant actually has a 64 bit address bus (physical or virtual) and
 Haskell follows an ILP memory model with 64 bit ints on a 64 bit machine.

 -Edward Kmett

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[GHC] #4143: Data.Set can overflow Int on balance check

[GHC]

#4143: Data.Set can overflow Int on balance check
-+--
Reporter:  japple|   Owner:  
Type:  bug   |  Status:  new 
Priority:  normal|   Component:  libraries (other)   
 Version:  6.12.2|Keywords:  containers, overflow
  Os:  Unknown/Multiple  |Testcase:  
Architecture:  Unknown/Multiple  | Failure:  Runtime crash   
-+--
 Data.Set uses Ints to track tree sizes. Rotation decisions, however, are
 made based on multiples of tree sizes. Tree sizes substantially less than
 the maxBound of Int can trigger run time exceptions.

 The attached files are as follows:

   * local-set.patch -- Apply this to Set.hs, then compile & run SetBug.hs.
 This patch changes the word size to 16 bits so it can be tested on 32-bit
 machines without using a huge portion of the RAM
   * SetBug.hs -- builds a set with maxBound/2 + 1 elements in such a way
 that tree rotation causes a run time error. I suspect there are other ways
 of building a set that can trigger this error even for sets of size
 maxBound/4+1.
   * fixed-set.patch -- changes rotation tests to use Integers to prevent
 overflow.

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Re: [GHC] #2427: Allow compilation of source from stdin

[GHC]

#2427: Allow compilation of source from stdin
-+--
Reporter:  guest |Owner:  
Type:  feature request   |   Status:  new 
Priority:  normal|Milestone:  _|_ 
   Component:  Compiler  |  Version:  6.8.3   
Keywords:|   Difficulty:  Unknown 
  Os:  Unknown/Multiple  | Testcase:  
Architecture:  Unknown/Multiple  |  Failure:  None/Unknown
-+--
Changes (by igloo):

  * priority:  low => normal
  * failure:  => None/Unknown
  * milestone:  6.12.3 => _|_


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Re: [GHC] #2911: Error messages have the wrong qualified names

[GHC]

#2911: Error messages have the wrong qualified names
-+--
Reporter:  igloo |Owner:  
Type:  bug   |   Status:  new 
Priority:  normal|Milestone:  6.14.1  
   Component:  Compiler  |  Version:  6.11
Keywords:|   Difficulty:  Unknown 
  Os:  Unknown/Multiple  | Testcase:  
Architecture:  Unknown/Multiple  |  Failure:  None/Unknown
-+--
Changes (by igloo):

  * priority:  low => normal
  * failure:  => None/Unknown
  * milestone:  6.12.3 => 6.14.1


Comment:

 See also #2245.

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Re: [GHC] #2245: Numeric literal printed wrong in error message

[GHC]

#2245: Numeric literal printed wrong in error message
-+--
Reporter:  guest |Owner:  
Type:  bug   |   Status:  new 
Priority:  normal|Milestone:  6.14.1  
   Component:  Compiler  |  Version:  6.9 
Keywords:|   Difficulty:  Unknown 
  Os:  MacOS X   | Testcase:  
Architecture:  x86   |  Failure:  None/Unknown
-+--

Comment(by igloo):

 See also #2911.

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Re: [GHC] #3195: runghc failing sometimes

[GHC]

#3195: runghc failing sometimes
---+
  Reporter:  juhpetersen   |   Type:  bug
Status:  new   |   Priority:  normal 
 Milestone:  _|_   |  Component:  None   
   Version:  6.10.2|   Keywords: 
Difficulty:  Unknown   | Os:  Linux  
  Testcase:|   Architecture:  powerpc
   Failure:  None/Unknown  |  
---+
Changes (by igloo):

  * priority:  low => normal
  * failure:  => None/Unknown
  * milestone:  6.12.3 => _|_


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Re: [GHC] #2380: Adjustor.o crash compiling ghc 6.8.3 on iBook G4 10.4.11

[GHC]

#2380: Adjustor.o crash compiling ghc 6.8.3 on iBook G4 10.4.11
+---
Reporter:  povman   | Type:  bug 
  Status:  closed   | Priority:  low 
   Milestone:  6.12.3   |Component:  Compiler
 Version:  6.8.3|   Resolution:  wontfix 
Keywords:   |   Difficulty:  Unknown 
  Os:  MacOS X  | Testcase:  
Architecture:  powerpc  |  Failure:  None/Unknown
+---
Changes (by igloo):

  * status:  new => closed
  * failure:  => None/Unknown
  * resolution:  => wontfix


Comment:

 Bus error in the 6.8 branch, and on a non-tier-1 platform, so closing.

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Re: [GHC] #2282: threaded runtime system crashes on powerpc with -N2

[GHC]

#2282: threaded runtime system crashes on powerpc with -N2
--+-
Reporter:  malcolm.wall...@…  |Owner:  
Type:  bug|   Status:  new 
Priority:  normal |Milestone:  _|_ 
   Component:  Runtime System |  Version:  6.8.2   
Keywords: |   Difficulty:  Unknown 
  Os:  MacOS X| Testcase:  
Architecture:  powerpc|  Failure:  None/Unknown
--+-
Changes (by igloo):

  * priority:  low => normal
  * failure:  => None/Unknown
  * milestone:  6.12.3 => _|_


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Re: [GHC] #2249: Undeclared variable in cmm reports as panic

[GHC]

#2249: Undeclared variable in cmm reports as panic
---+
  Reporter:  millenix  |  Owner:
  Type:  bug   | Status:  closed
  Priority:  low   |  Milestone:  6.12.3
 Component:  Compiler  |Version:  6.9   
Resolution:  wontfix   |   Keywords:
Difficulty:  Unknown   | Os:  Linux 
  Testcase:|   Architecture:  x86_64 (amd64)
   Failure:  None/Unknown  |  
---+
Changes (by igloo):

  * status:  new => closed
  * failure:  => None/Unknown
  * resolution:  => wontfix


Comment:

 Given Simon's message, and the amount of time this has lingered, I'll
 close it as wontfix.

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Re: [GHC] #2245: Numeric literal printed wrong in error message

[GHC]

#2245: Numeric literal printed wrong in error message
-+--
Reporter:  guest |Owner:  
Type:  bug   |   Status:  new 
Priority:  normal|Milestone:  6.14.1  
   Component:  Compiler  |  Version:  6.9 
Keywords:|   Difficulty:  Unknown 
  Os:  MacOS X   | Testcase:  
Architecture:  x86   |  Failure:  None/Unknown
-+--
Changes (by igloo):

  * priority:  low => normal
  * failure:  => None/Unknown
  * milestone:  6.12.3 => 6.14.1


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Re: [GHC] #1974: length "foo" doesn't work with -XOverloadedStrings

[GHC]

#1974: length "foo" doesn't work with -XOverloadedStrings
-+--
Reporter:  ganesh|Owner:  
Type:  feature request   |   Status:  new 
Priority:  normal|Milestone:  _|_ 
   Component:  Compiler  |  Version:  6.8.1   
Keywords:|   Difficulty:  Unknown 
  Os:  Unknown/Multiple  | Testcase:  
Architecture:  Unknown/Multiple  |  Failure:  None/Unknown
-+--
Changes (by igloo):

  * priority:  low => normal
  * failure:  => None/Unknown
  * milestone:  6.12.3 => _|_


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Re: [GHC] #1874: getDirectoryContents yields "invalid argument" instead of "permission error"

[GHC]

#1874: getDirectoryContents yields "invalid argument" instead of "permission
error"
---+
  Reporter:  Orphi |   
Type:  bug
Status:  new   |   
Priority:  normal 
 Milestone:  _|_   |  
Component:  libraries/directory
   Version:  6.8.1 |   
Keywords: 
Difficulty:  Moderate (less than a day)|
 Os:  Windows
  Testcase:  getDirectoryContents "C:\\System Volume Information"  |   
Architecture:  x86
   Failure:  None/Unknown  |  
---+
Changes (by igloo):

  * priority:  low => normal
  * failure:  => None/Unknown
  * milestone:  6.12.3 => _|_


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Re: [GHC] #1826: unable to list source for should never occur

[GHC]

#1826: unable to list source for  should never occur
-+--
Reporter:  guest | Type:  feature request
  Status:  new   | Priority:  normal 
   Milestone:  _|_   |Component:  GHCi   
 Version:  6.8.1 |   Resolution: 
Keywords:|   Difficulty:  Easy (less than 1 hour)
  Os:  Unknown/Multiple  | Testcase: 
Architecture:  Unknown/Multiple  |  Failure:  None/Unknown   
-+--
Changes (by igloo):

  * priority:  low => normal
  * failure:  => None/Unknown
  * milestone:  6.12.3 => _|_


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Re: [GHC] #1799: Retain export-list order in ModIface, use it in :browse

[GHC]

#1799: Retain export-list order in ModIface, use it in :browse
-+--
Reporter:  guest |Owner:  
Type:  bug   |   Status:  new 
Priority:  normal|Milestone:  6.14.1  
   Component:  GHCi  |  Version:  6.6.1   
Keywords:|   Difficulty:  Unknown 
  Os:  Unknown/Multiple  | Testcase:  
Architecture:  Unknown/Multiple  |  Failure:  None/Unknown
-+--
Changes (by igloo):

  * priority:  low => normal
  * failure:  => None/Unknown
  * milestone:  6.12.3 => 6.14.1


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Re: [GHC] #1666: -Werror aborts too early

[GHC]

#1666: -Werror aborts too early
-+--
Reporter:  simonmar  |Owner: 
Type:  bug   |   Status:  new
Priority:  normal|Milestone:  6.14.1 
   Component:  Compiler  |  Version:  6.6.1  
Keywords:|   Difficulty:  Easy (less than 1 hour)
  Os:  Unknown/Multiple  | Testcase: 
Architecture:  Unknown/Multiple  |  Failure:  None/Unknown   
-+--
Changes (by igloo):

  * priority:  low => normal
  * failure:  => None/Unknown
  * milestone:  6.12.3 => 6.14.1


Comment:

 Recent changes might make this easier to do.

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Re: [GHC] #1532: Implicit parameters are not available in breakpoints

[GHC]

#1532: Implicit parameters are not available in breakpoints
-+--
Reporter:  mnislaih  |Owner:  
Type:  feature request   |   Status:  new 
Priority:  normal|Milestone:  _|_ 
   Component:  GHCi  |  Version:  6.7 
Keywords:|   Difficulty:  Unknown 
  Os:  Unknown/Multiple  | Testcase:  break015
Architecture:  Unknown/Multiple  |  Failure:  None/Unknown
-+--
Changes (by igloo):

  * priority:  low => normal
  * failure:  => None/Unknown
  * milestone:  6.12.3 => _|_


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Re: [GHC] #1381: Add terminateStmt to "GHC as a library"

[GHC]

#1381: Add terminateStmt to "GHC as a library"
-+--
Reporter:  guest |Owner:  
Type:  feature request   |   Status:  new 
Priority:  normal|Milestone:  _|_ 
   Component:  GHC API   |  Version:  6.6.1   
Keywords:|   Difficulty:  Unknown 
  Os:  Unknown/Multiple  | Testcase:  
Architecture:  Unknown/Multiple  |  Failure:  None/Unknown
-+--
Changes (by igloo):

  * priority:  low => normal
  * failure:  => None/Unknown
  * milestone:  6.12.3 => _|_


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Re: [GHC] #698: GHC's internal memory allocator never releases memory back to the OS

[GHC]

#698: GHC's internal memory allocator never releases memory back to the OS
-+--
Reporter:  guest |Owner:  igloo 
Type:  bug   |   Status:  new   
Priority:  normal|Milestone:  6.14.1
   Component:  Runtime System|  Version:  6.12.1
Keywords:|   Difficulty:  Moderate (less than a day)
  Os:  Unknown/Multiple  | Testcase:  N/A   
Architecture:  Unknown/Multiple  |  Failure:  None/Unknown  
-+--
Changes (by igloo):

  * priority:  low => normal
  * milestone:  6.12.3 => 6.14.1


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Re: [GHC] #2444: gtk2hs 0.9.13 fails to build on ppc due to bad code generated with -fvia-C

[GHC]

#2444: gtk2hs 0.9.13 fails to build on ppc due to bad code generated with 
-fvia-C
---+
  Reporter:  bos   |  Owner: 
  Type:  bug   | Status:  closed 
  Priority:  lowest|  Milestone:  6.12.3 
 Component:  Compiler  |Version:  6.8.3  
Resolution:  wontfix   |   Keywords: 
Difficulty:  Unknown   | Os:  Linux  
  Testcase:|   Architecture:  powerpc
   Failure:  None/Unknown  |  
---+
Changes (by igloo):

  * status:  new => closed
  * resolution:  => wontfix


Comment:

 `-fvia-C` is now deprecated, and Linux PPC is not a tier 1 platform, so
 I'm closing this ticket.

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Re: [GHC] #2012: compiling via-C does not work on ppc

[GHC]

#2012: compiling via-C does not work on ppc
---+
  Reporter:  maeder|  Owner: 
  Type:  bug   | Status:  closed 
  Priority:  lowest|  Milestone:  6.12.3 
 Component:  Compiler  |Version:  6.8.2  
Resolution:  wontfix   |   Keywords: 
Difficulty:  Unknown   | Os:  MacOS X
  Testcase:|   Architecture:  powerpc
   Failure:  None/Unknown  |  
---+
Changes (by igloo):

  * status:  new => closed
  * failure:  => None/Unknown
  * resolution:  => wontfix


Comment:

 `-fvia-C` is now deprecated, and OS X PPC is not a tier 1 platform, so I'm
 closing this ticket.

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Re: [GHC] #3822: guards in arrow notation (Arrows extension) case statement cause compiler panic

[GHC]

#3822: guards in arrow notation (Arrows extension) case statement cause compiler
panic
-+--
  Reporter:  StephenBlackheath   |  Owner:  ross
  Type:  bug | Status:  closed  
  Priority:  high|  Milestone:  6.14.1  
 Component:  Compiler|Version:  6.12.1  
Resolution:  fixed   |   Keywords:  arrows guards case panic
Difficulty:  | Os:  Unknown/Multiple
  Testcase:  T3822   |   Architecture:  Unknown/Multiple
   Failure:  Compile-time crash  |  
-+--
Changes (by igloo):

  * status:  merge => closed
  * testcase:  patternGuard.hs => T3822
  * resolution:  => fixed
  * milestone:  6.12.3 => 6.14.1


Comment:

 Thanks! Test added.

 Not merging, as we won't be making another 6.12 release.

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Re: [GHC] #1333: core lint failures from arrow notation + HPC

[GHC]

#1333: core lint failures from arrow notation + HPC
-+--
Reporter:  igloo |Owner:
 
Type:  bug   |   Status:  new   
 
Priority:  high  |Milestone:  6.14.1
 
   Component:  Compiler  |  Version:  6.7   
 
Keywords:|   Difficulty:  Unknown   
 
  Os:  Unknown/Multiple  | Testcase:  arrowrun001 arrowrun002 
arrowrun003
Architecture:  Unknown/Multiple  |  Failure:  None/Unknown  
 
-+--
Changes (by igloo):

  * priority:  normal => high
  * failure:  => None/Unknown
  * milestone:  6.12.3 => 6.14.1


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Re: [GHC] #3903: DPH bad sliceP causes RTS panic "allocGroup: requested zero blocks"

[GHC]

#3903: DPH bad sliceP causes RTS panic "allocGroup: requested zero blocks"
--+-
Reporter:  benl   |Owner:  benl  
Type:  bug|   Status:  new   
Priority:  high   |Milestone:  6.14.1
   Component:  Data Parallel Haskell  |  Version:  6.13  
Keywords: |   Difficulty:
  Os:  Unknown/Multiple   | Testcase:
Architecture:  Unknown/Multiple   |  Failure:  Compile-time crash
--+-
Changes (by igloo):

  * milestone:  6.12.3 => 6.14.1


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Re: [GHC] #3807: Test for correct shared library generation

[GHC]

#3807: Test for correct shared library generation
-+--
Reporter:  asuffield |Owner:  duncan  
Type:  bug   |   Status:  new 
Priority:  high  |Milestone:  6.14.1  
   Component:  Test Suite|  Version:  6.12.1  
Keywords:|   Difficulty:  
  Os:  Unknown/Multiple  | Testcase:  
Architecture:  Unknown/Multiple  |  Failure:  None/Unknown
-+--
Changes (by igloo):

  * milestone:  6.12.3 => 6.14.1


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Re: [GHC] #3795: Haddock executable not versioned

[GHC]

#3795: Haddock executable not versioned
-+--
Reporter:  lpsmith   |Owner:
Type:  bug   |   Status:  new   
Priority:  high  |Milestone:  6.14.1
   Component:  Documentation |  Version:  6.12.1
Keywords:|   Difficulty:
  Os:  Unknown/Multiple  | Testcase:
Architecture:  Unknown/Multiple  |  Failure:  Other 
-+--
Changes (by igloo):

  * milestone:  6.12.3 => 6.14.1


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Re: [GHC] #3782: Data Parallel "Impossible happened" compiler error

[GHC]

#3782: Data Parallel "Impossible happened" compiler error
--+-
Reporter:  guest  |Owner:  rl  
Type:  bug|   Status:  new 
Priority:  high   |Milestone:  6.14.1  
   Component:  Data Parallel Haskell  |  Version:  6.12.1  
Keywords: |   Difficulty:  
  Os:  Unknown/Multiple   | Testcase:  
Architecture:  Unknown/Multiple   |  Failure:  None/Unknown
--+-
Changes (by igloo):

  * milestone:  6.12.3 => 6.14.1


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Re: [GHC] #3605: Dll's freeze with -threaded

[GHC]

#3605: Dll's freeze with -threaded
-+--
Reporter:  NeilMitchell  |Owner:  NeilMitchell
Type:  bug   |   Status:  new 
Priority:  high  |Milestone:  6.14.1  
   Component:  Documentation |  Version:  6.12.1 RC1  
Keywords:|   Difficulty:  Unknown 
  Os:  Unknown/Multiple  | Testcase:  
Architecture:  Unknown/Multiple  |  Failure:  None/Unknown
-+--
Changes (by igloo):

  * milestone:  6.12.3 => 6.14.1


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Re: [GHC] #2889: Compilation fails - Can't opne temporary

[GHC]

#2889: Compilation fails - Can't opne temporary
---+
  Reporter:  fobrock   |  Owner:  igloo  
  Type:  bug   | Status:  new
  Priority:  high  |  Milestone:  6.14.1 
 Component:  Compiler  |Version:  6.12.2 
Resolution:|   Keywords: 
Difficulty:  Unknown   | Os:  Windows
  Testcase:|   Architecture:  x86
   Failure:  None/Unknown  |  
---+
Changes (by igloo):

  * milestone:  6.12.3 => 6.14.1


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Re: [GHC] #2615: ghci doesn't play nice with linker scripts

[GHC]

#2615: ghci doesn't play nice with linker scripts
--+-
  Reporter:  AlecBerryman |  Owner:  igloo  

  Type:  bug  | Status:  closed 

  Priority:  high |  Milestone:  6.12.3 

 Component:  GHCi |Version:  6.10.1 

Resolution:  fixed|   Keywords:  dlopen, dynamic 
linking
Difficulty:  Unknown  | Os:  Linux  

  Testcase:   |   Architecture:  Unknown/Multiple   

   Failure:  Incorrect result at runtime  |  
--+-
Changes (by igloo):

  * status:  merge => closed
  * resolution:  => fixed


Comment:

 Didn't get merged

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Re: [GHC] #4029: ghci leaks memory when loading a file

[GHC]

#4029: ghci leaks memory when loading a file
---+
  Reporter:  blarsen   |  Owner:  
  Type:  bug   | Status:  new 
  Priority:  high  |  Milestone:  6.14.1  
 Component:  GHCi  |Version:  
Resolution:|   Keywords:  memory leak 
Difficulty:| Os:  Unknown/Multiple
  Testcase:|   Architecture:  Unknown/Multiple
   Failure:  Compile-time performance bug  |  
---+
Changes (by igloo):

  * milestone:  6.12.3 => 6.14.1


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