[llvm] [VPlan] Unroll VPReplicateRecipe by VF. (PR #142433)

[via llvm-commits]

================
@@ -907,6 +907,12 @@ class VPInstruction : public VPRecipeWithIRFlags,
     BranchOnCount,
     BranchOnCond,
     Broadcast,
+    /// Creates a vector containing all operands. The vector element count
+    /// matches the number of operands.
----------------
ayalz wrote:

```suggestion
    /// Creates a vector containing all operands. The number of operands
    /// matches the vector element count.
```


https://github.com/llvm/llvm-project/pull/142433