Add better support for bools in the graph fuser (#15057)
Summary:
Fixes #15038.
aten::_cast_Float(tensor, non_blocking) support was added in #14336.
Its second argument is a bool, but because we don't support generating values
of type bool in the fuser codegen, the codegen errored out.
aten::_cast_Float in the fuser never actually uses its non_blocking
argument, so another way to fix this would be to have a special op for a
fused cast but I thought that we might have fusible ops that do take
bool arguments in the future so this would be good to have.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/15057
Differential Revision: D13432091
Pulled By: zou3519
fbshipit-source-id: 455fe574f5f080aca9a112e346b841a2534a8dc3
