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Push shardy flattener down past ApplyShardingConstraints pass. #1266

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Merged
copybara-service merged 1 commit into from
May 1, 2026
+3 −3
Merged

Push shardy flattener down past ApplyShardingConstraints pass. #1266

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6 changes: 3 additions & 3 deletions shardy/dialect/sdy/transforms/import/import_pipeline.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -44,12 +44,12 @@ void addImportPipeline(OpPassManager& pm, int& dumpIndex,

pm.addPass(createAddDataFlowEdgesPass(
AddDataFlowEdgesPassOptions{options.enableNativeNonFlatSupport}));
pm.addPass(createFlattenCallGraphPass());
// Keep SymbolDCE after FlattenCallGraph.
pm.addPass(createSymbolDCEPass());
pm.addPass(
createApplyShardingConstraintsPass(ApplyShardingConstraintsPassOptions{
options.debugShardingOrigins, options.debugPropagationEdgeSharding}));
pm.addPass(createFlattenCallGraphPass());
// Keep SymbolDCE after FlattenCallGraph.
pm.addPass(createSymbolDCEPass());
// The sharding group import pass must run after applying sharding
// constraints. This ensures we can detect sharding conflicts between group
// members which have pre-propagation shardings due to sharding constraints.
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