#3990: UNPACK doesn't unbox data families
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Reporter: rl | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 6.13 | Keywords:
Os: Unknown/Multiple | Testcase:
Architecture: Unknown/Multiple | Failure: Runtime performance bug
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Comment(by rl):
FWIW, this isn't getting unpacked, either:
{{{
data Complex a where
CD :: {-# UNPACK #-} !Double -> {-# UNPACK #-} !Double -> Complex Double
data T = T {-# UNPACK #-} !(Complex Double)
}}}
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3990#comment:1>
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