The GitHub Actions job "tvm-bot" on tvm.git/main has succeeded.
Run started by GitHub user mvanhorn (triggered by mvanhorn).

Head commit for run:
d27ed727ce8417d84e8210548ae52ccac868162a / Tianqi Chen 
<[email protected]>
[TIRx] Generalize expression functor signatures (#19931)

Expression unification gives TIRX a shared `Expr` surface, but its
visitor and mutator APIs still expose primitive-only signatures. That
mismatch prevents general expressions from flowing through the existing
traversal structure and leaves statement traversal with overlapping
customization hooks.

This refactor generalizes the existing `ExprFunctor`, `ExprVisitor`, and
`ExprMutator` signatures in place to accept and return `Expr`. Statement
visitors and mutators expose a single virtual `VisitExpr(const Expr&)`
hook, while primitive statement reconstruction uses a non-virtual
checked `VisitPrimExpr` helper so invalid narrowing fails at the
boundary. Public pre-order and post-order traversal entry points accept
general `Expr` roots.

The existing specialization, vtable, dispatch registration, and class
structure remain intact; the change adds no parallel functor, fallback
dispatcher, or alternate implementation path.

Report URL: https://github.com/apache/tvm/actions/runs/28691158611

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