#3293: Implement shiftLInteger and shiftRInteger
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Reporter: igloo | Owner:
Type: task | Status: new
Priority: normal | Milestone: 6.12.1
Component: libraries/base | Version: 6.10.2
Severity: normal | Keywords:
Difficulty: Unknown | Testcase:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
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Currently `shift` for `Integer` (in `Data.Bits`) is defined in terms of
`(*)`, `div` and `^`.
Instead, `integer-*` should export `shiftLInteger` and `shiftRInteger`,
which can be more efficient.
We should do this after the builtin-primop/FFI-imported-primop stuff is
worked out, so that we can use a suitable GMP function for it.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3293>
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