jinhongyii opened a new pull request, #20251:
URL: https://github.com/apache/tvm/pull/20251

   ## Summary
   
   - realize lazy subscript operands used directly by PTX predicate inputs and 
destinations
   - preserve parser source spans through `SubscriptProxy` realization
   - propagate the span through tuple, Relax, and TIRx subscription callbacks
   
   This completes the lazy-subscript contract introduced by #20246 and fixes 
downstream regressions exposed by the TIRx migration in #20247.
   
   ## Testing
   
   - `cmake --build build -j 16`
   - `python -m pytest -q 
tests/python/tvmscript/test_tvmscript_parser_source.py::test_parser_attaches_span_to_nested_tensor_load
 
tests/python/tvmscript/test_tvmscript_parser_source.py::test_parser_attaches_span_to_direct_call
 
tests/python/tirx/codegen/test_ptx_dialect.py::test_ptx_comparison_selection_dispatch`
   - downstream wiki-kernel integration: 5 passed
   - downstream full `tirx_tools` gate: 2933 passed


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