tqchen opened a new pull request, #19640:
URL: https://github.com/apache/tvm/pull/19640
## Summary
Restore `buffer_dtype` as a top-level field on `PrinterConfig` (alongside
`int_dtype` and `float_dtype`). The tvmscript streamline refactor moved it into
`extra_config`, but `buffer_dtype` is a shared scalar-literal default rather
than a dialect-specific knob. Bringing it back to top-level keeps it
discoverable, type-checked at the C++ layer, and consistent with its sibling
scalar dtype fields.
## Files
- `include/tvm/script/printer/config.h` — restore `DataType buffer_dtype`
field + reflection registration.
- `src/script/printer/script_printer.cc` — restore the top-level
`"buffer_dtype"` string→DataType conversion in the `PrinterConfig` constructor.
- `src/tirx/script/printer/buffer.cc` — use `cfg->buffer_dtype` directly
instead of `GetExtraConfig<DataType>("tirx.buffer_dtype", ...)`.
- `python/tvm/runtime/script_printer.py` — re-add `buffer_dtype: str =
"float32"` field and kwarg.
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