#1287: SPECIALIZE causes panic
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Reporter: [EMAIL PROTECTED] | Owner: igloo
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 6.6
Severity: normal | Resolution:
Keywords: panic, SPECIALIZE | Difficulty: Unknown
Testcase: | Architecture: Unknown
Os: Unknown |
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Changes (by simonpj):
* owner: => igloo
Comment:
Ah, good point, thank you. I've committed a fix.
It's too late for 6.6, but there's an easy workaround: just omit the Num b
contraint in the specialisation for delta'. It's entirely useless,
because the original function is polymorphic in b. (The fix turns this
into a decent error message, and ignores the pragma.)
IAN: can you add a test case to regression suite, pls?
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1287>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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