[NFC] Address review comments: fix misprint + use C++17 struct binding

Author: v-klochkov

llvm/lib/Transforms/Vectorize/LoadStoreVectorizer.cpp

@@ -1391,15 +1391,11 @@ void Vectorizer::mergeEquivalenceClasses(EquivalenceClassMap &EQClasses) const {
 
   // For each item in RedKeyToUOMap, if it has more than one underlying object,
   // try to merge the equivalence classes.
-  for (auto &RedKeyToUO : RedKeyToUOMap) {
-    auto UObjects = RedKeyToUO.second;
+  for (auto &[RedKey, UObjects] : RedKeyToUOMap) {
     if (UObjects.size() < 2)
       continue;
-    const auto RedKey = RedKeyToUO.first;
     auto UTMap = GetUltimateTargets(UObjects);
-    for (const auto &UT : UTMap) {
-      const Value *UObject = UT.first;
-      const Value *UltimateTarget = UT.second;
+    for (const auto &[UObject, UltimateTarget] : UTMap) {
       if (UObject == UltimateTarget)
         continue;
 

llvm/test/Transforms/LoadStoreVectorizer/X86/massive_indirection.ll

@@ -7,7 +7,7 @@
 ; common underlying object deeper than 6 levels from the original pointer.
 
 ; The test below is the simplified version of actual performance oriented
-; workload; the offsets in getelementptr instructins are similar or same for
+; workload; the offsets in getelementptr instructions are similar or same for
 ; the test simplicity.
 
 define void @v1_v2_v4_v1_to_v8_levels_6_7_8_8(i32 %arg0, ptr align 16 %arg1) {