[llvm] [SLP]Prefer segmented/deinterleaved loads to strided and fix codegen (PR #135058)

[Alexey Bataev via llvm-commits]

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@@ -5787,6 +5789,18 @@ BoUpSLP::canVectorizeLoads(ArrayRef<Value *> VL, const Value *VL0,
     // Check that the sorted loads are consecutive.
     if (static_cast<unsigned>(*Diff) == Sz - 1)
       return LoadsState::Vectorize;
+    bool IsMasked;
+    unsigned InterleaveFactor;
+    SmallVector<int> CompressMask;
+    VectorType *LoadVecTy;
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alexey-bataev wrote:

1. Do not see any benefits in adding extra function
2. I don't like the approach with optional pointer params and trying to avoid it.

https://github.com/llvm/llvm-project/pull/135058