1420df7744
This PR adds `te.extern_primfunc` which provides the interface around TE ExternOp that allows a TVMScript defined schedulable TIR PrimFunc to be inlined into a TE compute graph. The result is that TIR can be used for compute definitions in Relay OpStrategies and, paired with meta-scheduler support in relay as introduced in #10578, these compute definitions can be scheduled and tuned as demonstrated in the attached tests. Prior to this, compute definitions were limited to those definable in TE only. As a consequence of this patch and ongoing improvements to TVMScript meta-programming (#11097), TOPI can be extended to include compute and scheduling functions targeting schedulable TIR uniformly.