Add fast path for ArgMin / ArgMax when axis is contiguous #411
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Add a method to get contiguous lanes of a tensor as a slice. This is useful for implementing fast paths for the case where the lane is contiguous.
Add an `IsNaN` trait which calls `f32::is_nan` to test for NaN-ness instead of testing whether `self.partial_cmp(self)` is None.
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Add a fast path for the common case where the min/max index is taken along a contiguous (stride-1) axis.
Lane::as_slicemethod for getting the remainder of a lane yielded bytensor.lanes(axis), if the lane has stride 1ArgMin/ArgMaxwhich leveragesLane::as_slice