[llvm] [VPlan] Explicitly handle scalar pointer inductions. (PR #83068)

[via llvm-commits]

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@@ -1155,6 +1155,7 @@ class VPInstruction : public VPRecipeWithIRFlags {
     BranchOnCount,
     BranchOnCond,
     ComputeReductionResult,
+    PtrAdd,
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ayalz wrote:

Worth documenting somewhere what this VPInstruction/Opcode represents, including being scalar.

https://github.com/llvm/llvm-project/pull/83068