@zhiics can you replace [this
block](https://github.com/dmlc/tvm/blob/master/src/relay/pass/fuse_ops.cc#L822-L848)
with this
```
Expr VisitExpr_(const TupleNode* tuple) {
auto* ret_group = gmap_.at(tuple)->FindRoot();
if (ret_group == gmap_.at(tuple)) {
return ExprMutator::VisitExpr_(tuple);
}
Array<Expr> new_fields = GetNewArguments(tuple->fields, ret_group);
// This tuple is an intermediate node in the group
return TupleNode::make(new_fields);
}
```
and try your PR?
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