[llvm] [llubi] Implement vector reduction/manipulation intrinsics (PR #194345)

[Yingwei Zheng via llvm-commits]

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@@ -379,6 +379,56 @@ class InstExecutor : public InstVisitor<InstExecutor, void>,
     return Boolean == BooleanKind::True;
   }
 
+  // Helper function to get the length of a (possible scalable) vector.
+  uint32_t getVectorNumElements(VectorType *Ty) {
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dtcxzyw wrote:

Use `getEVL`.

https://github.com/llvm/llvm-project/pull/194345