#7689: Primitive bitwise operations on Int# ------------------------------------------------+-------------------------- Reporter: jstolarek | Owner: Type: feature request | Status: closed Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.7 Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Test Case: primops/should_run/T7689.hs | Difficulty: Blocking: | Unknown | Blocked By: | Related Tickets: ------------------------------------------------+-------------------------- 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/7689#comment:11 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler