Refine the comments according to Florian's comment

Mel-Chen · Mel-Chen · commit 873a22fa4411 · 2024-10-29T23:46:05.000-07:00
diff --git a/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp b/llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -1486,7 +1486,8 @@ class LoopVectorizationCostModel {
     return InLoopReductions.contains(Phi);
   }
 
-  /// Returns true if the predicated reduction select should be used.
+  /// Returns true if the predicated reduction select should be used to set the
+  /// incoming value for the reduction phi.
   bool usePredicatedReductionSelect(unsigned Opcode, Type *PhiTy) const {
     // Force to use predicated reduction select since the EVL of the
     // second-to-last iteration might not be VF*UF.

Original file line number	Diff line number	Diff line change
`@@ -1486,7 +1486,8 @@ class LoopVectorizationCostModel {`
`1486`	`1486`	`return InLoopReductions.contains(Phi);`
`1487`	`1487`	`}`
`1488`	`1488`
`1489`		`- /// Returns true if the predicated reduction select should be used.`
	`1489`	`+ /// Returns true if the predicated reduction select should be used to set the`
	`1490`	`+ /// incoming value for the reduction phi.`
`1490`	`1491`	`bool usePredicatedReductionSelect(unsigned Opcode, Type *PhiTy) const {`
`1491`	`1492`	`// Force to use predicated reduction select since the EVL of the`
`1492`	`1493`	`// second-to-last iteration might not be VF*UF.`