trevor-m commented on a change in pull request #5106: [Relay][MergeComposite]
Support TupleGetItem in body of pattern
URL: https://github.com/apache/incubator-tvm/pull/5106#discussion_r398106710
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File path: src/relay/transforms/merge_composite.cc
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@@ -66,6 +66,31 @@ class MergeCompositeWrapper : public ExprMutator {
return root;
}
+ Expr ExtractPattern(const TupleGetItem& pattern, const Expr& root,
+ Map<std::string, Array<Expr>>* var_map, Map<Expr, Expr>* call_map) {
+ if (!root->IsInstance<TupleGetItemNode>()) {
+ return Expr();
+ }
+ auto root_node = Downcast<TupleGetItem>(root);
+ if (pattern->index != root_node->index) {
+ return Expr();
+ }
+ if (pattern->tuple->IsInstance<CallNode>() &&
+ root_node->tuple->IsInstance<CallNode>()) {
+ Expr new_arg;
+ if (call_map->find(pattern->tuple) != call_map->end()) {
+ new_arg = (*call_map)[pattern->tuple];
+ } else {
+ new_arg = ExtractPattern(Downcast<Call>(pattern->tuple),
+ Downcast<Call>(root_node->tuple),
+ var_map, call_map);
+ call_map->Set(pattern->tuple, new_arg);
Review comment:
Call map is still only used for call nodes with this PR.
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