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Fix the bug that fallback does not support more than one output #817

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Merged
merged 2 commits into from
Jan 31, 2022
Merged

Fix the bug that fallback does not support more than one output #817

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de6ba82
Fix the bug that fallback does not support more than one output
Jan 19, 2022
a874e35
Modify the code format for the linter.
Jan 25, 2022
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18 changes: 15 additions & 3 deletions core/compiler.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -280,9 +280,21 @@ GraphAndMapping ConstructFallbackGraph(
}
}

for (auto& output : block->outputs()) {
if (old_to_new_g.count(output)) {
new_g->registerOutput(old_to_new_g[output]);
if (block->outputs().size() > 1) {
std::vector<torch::jit::Value*> fallback_graph_vector;
for (auto& output : block->outputs()) {
if (old_to_new_g.count(output)) {
fallback_graph_vector.push_back(old_to_new_g[output]);
}
}
torch::jit::ArrayRef<torch::jit::Value*> fallback_graph_outputs(fallback_graph_vector);
auto return_tuple_node = new_g->createTuple(fallback_graph_outputs);
new_g->block()->appendNode(return_tuple_node);
// Set the output as the produced tuple
new_g->registerOutput(return_tuple_node->outputs()[0]);
} else {
if (old_to_new_g.count(block->outputs()[0])) {
new_g->registerOutput(old_to_new_g[block->outputs()[0]]);
}
}
return {new_g, old_to_new_g};
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