Internal compiler error (unhandled IO exception).

[kovach]

minimized example compiled with futhark opencl:

def merge [m] x y = (0, replicate m 0)

entry test_hist n = hist merge (0, [0]) n [] []

Internal compiler error (unhandled IO exception).
Please report this at https://github.com/diku-dk/futhark/issues
Scope.lookupInfo: Name phys_tid_5623 not found in type environment.
CallStack (from HasCallStack):
  error, called at src/Futhark/IR/Prop/Scope.hs:84:9 in futhark-0.25.2-9TQRsBBUOgmC2aFEzbYPIr:Futhark.IR.Prop.Scope

error goes away if entry replaced by def or C backend is used

[athas]

That is quite an exotic histogram operator, although I'm surprised we've (apparently) never hit it in our tests before.