[llvm] [SandboxVectorizer] New class to actually collect and manage seeds (PR #113386)

[via llvm-commits]

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@@ -131,4 +141,61 @@ void SeedContainer::print(raw_ostream &OS) const {
 LLVM_DUMP_METHOD void SeedContainer::dump() const { print(dbgs()); }
 #endif // NDEBUG
 
+template <typename LoadOrStoreT> static bool isValidMemSeed(LoadOrStoreT *LSI) {
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Sterling-Augustine wrote:

It's always hard to decide where to checkpoint work in progress.

>From the original description:

"There are many more tests to add, but I would like to get this reviewed
and the details sorted out before it grows too big."

Tests coming are for loads and additional validity checks.

https://github.com/llvm/llvm-project/pull/113386