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Revert "[CINN] Align initial subgraph order with block.ops (#70719)" #70776

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merged 1 commit into from
Jan 11, 2025
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Revert "[CINN] Align initial subgraph order with block.ops (#70719)" #70776

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7 changes: 3 additions & 4 deletions paddle/fluid/pir/transforms/sub_graph_detector.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -461,14 +461,13 @@ void SubgraphDetector::MergeSource2Target(const SubGraphPtr& source,

SubgraphDetector::SubgraphDetector(pir::Block* block,
const OpClassifier& classifier) {
// init sort_ops_ in reverse topo order and op2index_ in topo order
// init sort_ops_ in reverse topo order
sort_ops_ = InverselyTopologicalSort(block);
// init op2index_ in topo order
int index = 0;
for (auto& op : *block) {
sort_ops_.push_back(&op);
op2index_[&op] = index++;
}
std::reverse(sort_ops_.begin(), sort_ops_.end());

// construct subgraphs and upstream/downstream relation
std::vector<SubGraphPtr> subgraph_list;
for (const auto& op : sort_ops_) {
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