[llvm] [VPlan] Demarcate VPIs that gen scalars (NFC) (PR #196207)

[Florian Hahn via llvm-commits]

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@@ -1434,12 +1434,12 @@ class LLVM_ABI_FOR_TEST VPInstruction : public VPRecipeWithIRFlags,
 
   /// Returns true if we can generate a scalar for the first lane only if
   /// needed.
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fhahn wrote:

Ah yes. Perhaps it would still be good to clarify the comment and potentially the interaction, as this could be quite confusing to someone reading the code currently



https://github.com/llvm/llvm-project/pull/196207