#13518: CMM compiles with 8.0.2, fails with git HEAD -------------------------------------+------------------------------------- Reporter: erikd | Owner: (none) Type: bug | Status: closed Priority: normal | Milestone: 8.4.1 Component: Compiler | Version: 8.1 Resolution: invalid | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Incorrect | Unknown/Multiple error/warning at compile-time | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by rwbarton):
So how does one express a `Word32` in a portable way in CMM?
There is no 32-bit integral primitive Haskell type anyways, so the problem never arises. The definition of the Haskell type `Word32` is {{{#!hs data Word32 = W32# Word# }}} where all but the low 32 bits of the `Word#` are expected to be zero. So that's the interface you have to program to, in Cmm. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13518#comment:13 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler