[GHC] #14959: Heap overflow in optimizer

GHC ghc-devs at haskell.org
Wed Mar 21 17:55:18 UTC 2018


#14959: Heap overflow in optimizer
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        Reporter:  darchon           |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler          |              Version:  8.4.1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by darchon):

 Some notes which I forgot to mention:

 * Result need to be `Integer`, no heap overflow on `Int` or `Word`
 * The folded computation needs to be `setBit`, no heap overflow on `+` or
 `div`
 * The `[0..]` needs to be the first argument of  `zip`, no heap overflow
 on `zip [1] [0..]`

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14959#comment:2>
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