[Jax] Propagate XLA metadata to function argument attributes in MLIR. #32425
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Currently function arguments are missing `frontend_attributes` set by `set_xla_metadata`. This change modifies the MLIR lowering process to include the current `xla_metadata` in the `mhlo.frontend_attributes` of the function arguments. This allows metadata to be associated with specific inputs in the generated XLA HLO. Tests are updated to verify that argument attributes contain the expected metadata. PiperOrigin-RevId: 816363146
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[Jax] Propagate XLA metadata to function argument attributes in MLIR.
Currently function arguments are missing
frontend_attributesset byset_xla_metadata.This change modifies the MLIR lowering process to include the current
xla_metadatain themhlo.frontend_attributesof the function arguments. This allows metadata to be associated with specific inputs in the generated XLA HLO. Tests are updated to verify that argument attributes contain the expected metadata.