[llvm] [SLP] Split blocking build-vector stores in scalar chains (PR #194970)

[Alexey Bataev via llvm-commits]

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@@ -27244,6 +27180,8 @@ bool SLPVectorizerPass::vectorizeStores(
     int64_t LastDist;
     for (auto [Idx, Data] : enumerate(StoreSeq)) {
       auto &[Dist, InstIdx] = Data;
+      StoreLane Lane = StoreLanes[InstIdx];
+      Lane.Offset = Dist;
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alexey-bataev wrote:

Need another field for distance, not the one used for buildvector position

https://github.com/llvm/llvm-project/pull/194970