#7684: cgrun071 segfaults ----------------------------------+---------------------------------- Reporter: tibbe | Owner: Type: bug | Status: infoneeded Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.7 Resolution: | Keywords: Operating System: MacOS X | Architecture: x86_64 (amd64) Type of failure: Runtime crash | Difficulty: Unknown Test Case: cgrun071 | Blocked By: Blocking: | Related Tickets: ----------------------------------+---------------------------------- Comment (by tibbe): Replying to [comment:42 simonmar]:

Well, one bug is that in `emitPopCntCall` we don't cast the argument to the correct width. The `-dcmm-lint` should catch it, because the argument width isn't the same as the primop is expecting, but the Cmm linter doesn't check the arguments of prim calls (that's another bug).

How would one cast the argument in the `emitPopCntCall`? -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7684#comment:44> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler