#5775: Inconsistency in demand analysis
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Reporter: rl | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 7.4.2
Component: Compiler | Version: 7.5
Keywords: | Os: Unknown/Multiple
Architecture: Unknown/Multiple | Failure: Runtime performance bug
Difficulty: Unknown | Testcase:
Blockedby: | Blocking:
Related: |
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Comment(by rl):
Hmm, isn't it only fragile in the presence of `unsafePerformIO` and
friends (which is what `idx` in my example does)? If so, does it really
matter? If I use `unsafePerformIO`, I'm on my own!
This whole example is really an artefact of `Storable` living in `IO`
rather than in `ST`. It seems that is causing even more problems than I
realised.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5775#comment:5>
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