[NFC] Fix typo

Reviewed By: eopXD

Differential Revision: https://reviews.llvm.org/D133079

Author: zqb-all

llvm/include/llvm/Analysis/TargetTransformInfo.h

@@ -602,7 +602,7 @@ class TargetTransformInfo {
                              unsigned AddrSpace = 0,
                              Instruction *I = nullptr) const;
 
-  /// Return true if LSR cost of C1 is lower than C1.
+  /// Return true if LSR cost of C1 is lower than C2.
   bool isLSRCostLess(const TargetTransformInfo::LSRCost &C1,
                      const TargetTransformInfo::LSRCost &C2) const;