[llvm] [SLPVectorizer] Clear `TreeEntryToStridedPtrInfoMap`. (PR #160544)

[Alexey Bataev via llvm-commits]

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@@ -2099,6 +2099,8 @@ class BoUpSLP {
     UserIgnoreList = nullptr;
     PostponedGathers.clear();
     ValueToGatherNodes.clear();
+    TreeEntryToStridedPtrInfoMap.clear();
+    assert(TreeEntryToStridedPtrInfoMap.empty() && "TreeEntryToStridedPtrInfoMap is not cleared");
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alexey-bataev wrote:

Better to have the assertion in buildTree() functions

https://github.com/llvm/llvm-project/pull/160544