Re: [GHC] #8791: Use new primitive bitwise operations for Int# in Data.Bits

#8791: Use new primitive bitwise operations for Int# in Data.Bits -------------------------------------+------------------------------------ Reporter: cdk | Owner: cdk Type: task | Status: patch Priority: normal | Milestone: 7.8.1 Component: libraries/base | Version: 7.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: 7689 -------------------------------------+------------------------------------ Comment (by Herbert Valerio Riedel ): In [changeset:"0fc4fb5477d3ca22a8b6894db5b1112b9badfdc4/base"]: {{{ #!CommitTicketReference repository="base" revision="0fc4fb5477d3ca22a8b6894db5b1112b9badfdc4" Use new bitwise Int# primops in Data.Bits (re #8791) The new primops (see also #7689) allow to optimize `instance Bits Int` by allowing to operate directly on Int# instead of having to convert to Word# and back to Int# again. Authored-by: Chris Dueck Signed-off-by: Herbert Valerio Riedel }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8791#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler