[llvm] [SLP]: Introduce and use getDataFlowCost (PR #112999)

[Alexey Bataev via llvm-commits]

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@@ -10257,8 +10291,9 @@ InstructionCost BoUpSLP::getTreeCost(ArrayRef<Value *> VectorizedVals) {
   for (ExternalUser &EU : ExternalUses) {
     // We only add extract cost once for the same scalar.
     if (!isa_and_nonnull<InsertElementInst>(EU.User) &&
-        !ExtractCostCalculated.insert(EU.Scalar).second)
+        !ExtractCostCalculated.insert(EU.Scalar).second) {
       continue;
+    }
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alexey-bataev wrote:

Restore original code

https://github.com/llvm/llvm-project/pull/112999