[llvm] [SystemZ] SLP reductions: cost functions of reductions and scalarization (PR #112491)

[Jonas Paulsson via llvm-commits]

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@@ -3033,8 +3033,8 @@ class BoUpSLP {
       unsigned NumParts, bool ForOrder = false);
 
   /// \returns the scalarization cost for this list of values. Assuming that
-  /// this subtree gets vectorized, we may need to extract the values from the
-  /// roots. This method calculates the cost of extracting the values.
+  /// this subtree gets vectorized, we may need to insert the values from the
+  /// roots. This method calculates the cost of inserting the values.
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JonPsson1 wrote:

I simplified it.. what do you think?

https://github.com/llvm/llvm-project/pull/112491