[llvm] [VPlan] Run narrowInterleaveGroups during general VPlan optimizations. (PR #149706)

[David Sherwood via llvm-commits]

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@@ -3934,14 +3936,14 @@ static bool canNarrowLoad(VPWidenRecipe *WideMember0, unsigned OpIdx,
   return false;
 }
 
-/// Returns true if \p IR is a full interleave group with factor and number of
-/// members both equal to \p VF. The interleave group must also access the full
-/// vector width \p VectorRegWidth.
-static bool isConsecutiveInterleaveGroup(VPInterleaveRecipe *InterleaveR,
-                                         unsigned VF, VPTypeAnalysis &TypeInfo,
-                                         unsigned VectorRegWidth) {
+/// Returns VF from \p VFs if \p IR is a full interleave group with factor and
+/// number of members both equal to VF. The interleave group must also access
+/// the full vector width \p VectorRegWidth.
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david-arm wrote:

nit: Looks like `VectorRegWidth` is no longer a function argument. Perhaps just drop the final `\p VectorRegWidth` from the comment?

https://github.com/llvm/llvm-project/pull/149706