[llvm] [NFC][LV]: Differentiate between Pred and Unpred masked operations. (PR #169509)

[David Sherwood via llvm-commits]

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@@ -705,9 +707,15 @@ class LoopVectorizationLegality {
   AssumptionCache *AC;
 
   /// While vectorizing these instructions we have to generate a
-  /// call to the appropriate masked intrinsic or drop them in case of
-  /// conditional assumes.
-  SmallPtrSet<const Instruction *, 8> MaskedOp;
+  /// call to the appropriate masked intrinsic or drop them.
+  /// To differentiate between needing masked op because there is a conditional
+  /// executed block or because of predicated loop, we keep two lists:
+  /// 1) UnpredMaskedOp - instructions that need masking if we are
+  ///    in conditionally executed block.
+  /// 2) PredMaskedOp - instructions that need masking if we are in a predicated
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david-arm wrote:

I think this line exceeds the 80 char limit?

https://github.com/llvm/llvm-project/pull/169509