[DLight] Check for target in function attributes #16958
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Prior to this commit, the `dlight` scheduling rules were applied solely based on the global `tvm.target.Target.current()`. However, a TIR PrimFunc may be annotated with the target, rather than using the global `Target.current()`. In this case, the `dlight` scheduling may produce a scheduled PrimFunc that is not compatible with its target. For example, using a thread binding to `"threadIdx.x"` on a CPU target. This commit updates `dlight` to check for a TIR PrimFunc's annotations when scheduling, matching the behavior of `tvm.build`.
masahi
approved these changes
May 13, 2024
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Prior to this commit, the
dlightscheduling rules were applied solely based on the globaltvm.target.Target.current(). However, a TIR PrimFunc may be annotated with the target, rather than using the globalTarget.current(). In this case, thedlightscheduling may produce a scheduled PrimFunc that is not compatible with its target. For example, using a thread binding to"threadIdx.x"on a CPU target.This commit updates
dlightto check for a TIR PrimFunc's annotations when scheduling, matching the behavior oftvm.build.