[llvm] [LoadStoreVectorizer] Propagate alignment through contiguous chain (PR #145733)

[Drew Kersnar via llvm-commits]

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@@ -21,6 +21,43 @@
 
 using namespace llvm;
 
+static bool tryToPropagateAlign(Function &F, const DataLayout &DL) {
+  bool Changed = false;
+
+  for (BasicBlock &BB : F) {
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dakersnar wrote:

Good idea. I reworked it to use the tryImproveAlignment framework. Let me know if this is what you had in mind, or if you wanted me to integrate it into the existing call to tryImproveAlignment (the one that calls computeKnownBits)

https://github.com/llvm/llvm-project/pull/145733