[llvm] [SLP] Initial vectorization of non-power-of-2 ops. (PR #77790)

[Florian Hahn via llvm-commits]

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@@ -7145,7 +7185,8 @@ class BoUpSLP::ShuffleCostEstimator : public BaseShuffleAnalysis {
         for (unsigned I = 0, End = VL.size(); I < End; I += VF) {
           if (VectorizedLoads.contains(VL[I]))
             continue;
-          GatherCost += getBuildVectorCost(VL.slice(I, VF), Root);
+          GatherCost += getBuildVectorCost(
+              VL.slice(I, std::min(VL.size() - I, size_t(VF))), Root);
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fhahn wrote:

Adjusted, thanks!

https://github.com/llvm/llvm-project/pull/77790