[GHC] #229: Integer overflow in array allocation

[GHC]

#229: Integer overflow in array allocation
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        Reporter:  josefs            |                Owner:  bgamari
            Type:  bug               |               Status:  closed
        Priority:  high              |            Milestone:  8.2.1
       Component:  Core Libraries    |              Version:  7.9
      Resolution:  fixed             |             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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Changes (by akio):

 * cc: akio (added)


Comment:

 Sorry if I'm missing something, but the overflow check looks like it may
 be incorrect. For example, if `Int` is 32 bits wide, `0x58000000 * 4 ::
 Int` is greater than `0x58000000`, so it passes the test, but the
 multiplication is still overflowing.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/229#comment:31>
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