#8832: Constant-folding regression wrt `clearBit (bit 0) 0 ` -------------------------------------------------+------------------------- Reporter: hvr | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: Resolution: | 7.8.1-rc2 Operating System: Unknown/Multiple | Keywords: Type of failure: Runtime performance bug | Architecture: Test Case: | Unknown/Multiple simplCore/should_compile/T8832 | Difficulty: Blocking: | Unknown | Blocked By: | Related Tickets: -------------------------------------------------+------------------------- Changes (by simonpj): * owner: simonpj => * status: closed => new * resolution: fixed => Comment: The test fails on 32-bit machines, because we don't have 64-bit primops on a 32-bit machine, so the constant folding doesn't work. Maybe we should have 64-bit primops on a 32-bit machine, but that's a separate story. Meanwhile, we need to fix the test so that it omits the 64-bit test on 32-bit machines. Austin can you do this, post release? Simon -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8832#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler