[llvm] [SLP]Fix graph traversal in getSpillCost (PR #124984)

[Luke Lau via llvm-commits]

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@@ -12252,25 +12254,28 @@ InstructionCost BoUpSLP::getSpillCost() const {
       };
 
       // Debug information does not impact spill cost.
-      if (isa<CallBase>(&*PrevInstIt) && !NoCallIntrinsic(&*PrevInstIt) &&
-          &*PrevInstIt != PrevInst)
+      // Vectorized calls, represented as vector intrinsics, do not impact spill
+      // cost.
+      if (const auto *CB = dyn_cast<CallBase>(&*PrevInstIt);
+          CB && !NoCallIntrinsic(CB) && !isVectorized(CB))
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lukel97 wrote:

Oh woops I didn't see this. I'll close #125650

https://github.com/llvm/llvm-project/pull/124984