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Created by Joachim Breitner@nomeataDeveloper

nofib fails to build in ben-raytrace: Word# vs. Word64##

I observe this in the perf-nofib job on master, e.g. in https://gitlab.haskell.org/ghc/ghc/-/jobs/894412:

Random/Wyhash64.hs:27:20: error:
    • Couldn't match expected type ‘GHC.Prim.Word#’
                  with actual type ‘GHC.Prim.Word64#’
    • In the first argument of ‘timesWord2#’, namely ‘a’
      In the expression: timesWord2# a b
      In the expression:
        case timesWord2# a b of (# x, y #) -> (W64# x, W64# y)
   |
27 |   case timesWord2# a b of (# x, y #) -> (W64# x, W64# y)
   |                    ^
Random/Wyhash64.hs:27:22: error:
    • Couldn't match expected type ‘GHC.Prim.Word#’
                  with actual type ‘GHC.Prim.Word64#’
    • In the second argument of ‘timesWord2#’, namely ‘b’
      In the expression: timesWord2# a b
      In the expression:
        case timesWord2# a b of (# x, y #) -> (W64# x, W64# y)
   |
27 |   case timesWord2# a b of (# x, y #) -> (W64# x, W64# y)
   |                      ^
Random/Wyhash64.hs:27:47: error:
    • Couldn't match expected type ‘GHC.Prim.Word64#’
                  with actual type ‘GHC.Prim.Word#’
    • In the first argument of ‘W64#’, namely ‘x’
      In the expression: W64# x
      In the expression: (W64# x, W64# y)
   |
27 |   case timesWord2# a b of (# x, y #) -> (W64# x, W64# y)
   |                                               ^
Random/Wyhash64.hs:27:55: error:
    • Couldn't match expected type ‘GHC.Prim.Word64#’
                  with actual type ‘GHC.Prim.Word#’
    • In the first argument of ‘W64#’, namely ‘y’
      In the expression: W64# y
      In the expression: (W64# x, W64# y)
   |
27 |   case timesWord2# a b of (# x, y #) -> (W64# x, W64# y)
   |                                                       ^

I didn’t find an existing issue; sorry if I didn't search enough.

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