[llvm] [SLP] Avoid seeding related affine loop address computations (PR #226220)

[Alexey Bataev via llvm-commits]

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@@ -1003,6 +1007,101 @@ bool isOnceUsedSeed(const Instruction *I) {
       I);
 }
 
+/// Returns true if \p Ptr is only used by scalar loads and stores, directly or
+/// through getelementptrs with constant offsets.
+static bool onlyFeedsScalarAccesses(Value *Ptr, bool ReVec,
+                                    unsigned Depth = 0) {
+  constexpr unsigned MaxDepth = 2;
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alexey-bataev wrote:

```suggestion
                                    unsigned Depth = 2) {
```

https://github.com/llvm/llvm-project/pull/226220