slyubomirsky opened a new pull request, #15140:
URL: https://github.com/apache/tvm/pull/15140
This PR implements the proposal in #14899. Namely, the `@R.function`
decorator now has an optional `private` attribute. If a function is marked as
private, then it will not have a global symbol attached to it and thus will not
be externally accessible. By default, functions are not private, so the parser
does insert a global symbol for them.
Here is an example of how to use the privacy attribute:
```python
@I.ir_module
class Module:
# Will not have a global symbol! Often not very useful to make main
private...
@R.function(private=True)
def main(...): ...
```
Passes that introduce new functions should decide whether a global symbol
should be included with those functions. Most of the time, this is not the case
(e.g., the functions extracted by the lambda lifting pass probably should not
be publicly accessible).
Note that there are alternative approaches we can consider. For example, we
may have "private" as a field on a function node and fill in the global symbol
attributes _later_. This may be important for some passes.
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