[llvm] [LV] Increase max VF if vectorized function variants exist (PR #66639)

[David Sherwood via llvm-commits]

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@@ -380,6 +380,10 @@ class LoopVectorizationLegality {
     return MaskedOp.contains(I);
   }
 
+  /// Returns true if there is at least one function call in the loop which
+  /// has a vectorized variant available.
+  bool hasVectorVariants() const { return VecVariantsFound; }
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david-arm wrote:

Again, perhaps something like 'hasVectorCallVariants'?

https://github.com/llvm/llvm-project/pull/66639