#3555: Vectorisation error with negative Double const
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Reporter: ams | Owner: rl
Type: bug | Status: new
Priority: normal | Milestone:
Component: Data Parallel Haskell | Version: 6.13
Severity: normal | Resolution:
Keywords: | Testcase:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
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Comment (by rl):
This is because `-1.0` gets desugared to `negate 1.0` and `negate` is a
method of `Num`. Unfortunately, Haskell doesn't have negative literals. It
would be possible to add support to the vectoriser for this particular
case but I'm not sure it's worth it since there is an easy workaround and
the problem will go away once we are able to vectorise the prelude.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3555#comment:6>
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