This PR lets Relax expressions directly take `PrimExpr` values without
requiring the explicit `PrimValue` wrapper, continuing the Relax IR
unification work by removing Relax-specific leaf/base expression layers.
Summary:
- Remove `LeafExpr` / `LeafExprNode` and use direct expression-node
checks where needed.
- Converge Relax expression typing onto the shared IR `Expr` base.
- Remove the `PrimValue` node wrapper while keeping `relax.prim_value` /
`R.prim_value` as conversion helpers that return existing `PrimExpr`
values unchanged.
- Register direct `PrimExpr` handling through exact concrete node
dispatch, aligned with the `tirx` expression visitor list and excluding
arith iter-map intermediate nodes.
- Inline the private Python primitive conversion helper into public
`relax.prim_value`.
- Handle direct `PrimExpr` values in frontend scalar paths without
assuming a `.value` field on non-immediate expressions.
- Fix incorrect function names (`lnumpy_matmul`→`lnumpy_linear`,
`lnumpy_relu`→`lnumpy_relu0`) and undefined variables (`lv0`→`lv`,
`b`→`n`) in Relax learning tutorial
- Add missing `I`, `T`, `R` imports in Relax and TensorIR learning
tutorials
- Update `pass_infra.rst` to match current source: fix `PassInfoNode`
field order and add `traceable`, correct `PassContextNode`
array types (`Expr`→`String`), remove obsolete `StringImm` cast in
`SequentialNode`, and add `traceable` param to `Create*Pass`
signatures
- Replace stale `PrintIRBefore`/`PrintAfter` TODOs with
already-implemented instruments (`PrintBeforeAll`, `PrintAfterAll`,
`PassPrintingInstrument`, `DumpIR`)
- Add missing `tvm.relax.op.vision` and `tvm.relax.op.vm` to API
reference
- Add `PythonDomain.find_obj` patch to resolve ambiguous
cross-references for classes that exist in multiple TVM namespaces (e.g.
`StringImm` in both `tvm.relax` and `tvm.tirx`). This is a general
solution that reuses the existing `tvm_class_name_rewrite_map` and also
benefits `Var`, `Call`, etc.
[REFACTOR] Phase out getattr based attribute handling
This PR phases out getattar based attribute handling as they are slower
and introduces extra code path.
This does mean that if an Object is not explicitly registered
in python side, we will no longer be able to access the field by name.
Likely this is also desirable as we would like to enable faster use that
updates the python end and do not rely on these behavior.
* [Docs] Introduce Relax API and move legacy part to standalone page
As the TVM project evolves, the Unity strategy has been the recommended
way to use Apache TVM applications. Hence, we are pushing documentation
for the Relax API to the forefront and moving the legacy part to a
standalone page, which may be removed in the future.
* update for ci
* update for ci
Tianqi Chen