#5550: GHC infinite loop when compiling vector
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Reporter: simonpj | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.2.1
Keywords: | Testcase:
Blockedby: | Difficulty:
Os: Unknown/Multiple | Blocking:
Architecture: Unknown/Multiple | Failure: None/Unknown
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Comment(by rl):
!ForceSpecConstr applies to entire functions, not to individual arguments.
That is, if a function has a !ForceSpecConstr argument it will get
specialised. That's the only sane way for it to work (we really want to
mark functions but giving them a special argument is the least fragile way
of doing so).
#4448 has example code right on top!
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5550#comment:10>
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