triu not implemented for Bool

[calincru]

I'm getting the error [title] with the latest nightly build. I was doing

torch.ones(n, m, dtype=torch.uint8).triu_() 

to get an upper-triangular mask, but now I'm getting a deprecation warning about using tensors other than booleans in torch.masked_scatter, so I changed the above to

torch.ones(n, m, dtype=torch.bool).triu_()

which now fails with RuntimeError: "triu" not implemented for 'Bool'. Is this known and/or WIP?

[maxwell-aladago]

Version 1.1.0.post2 gives a runtime error of triu__ not supported on CPUType for Bool but works fine for dtype=torch.uint8.