Tidy some grammar in some comments

llvm-svn: 322133
diff --git a/llvm/lib/CodeGen/CodeGenPrepare.cpp b/llvm/lib/CodeGen/CodeGenPrepare.cpp
index 26ca8d4..af69f84 100644
--- a/llvm/lib/CodeGen/CodeGenPrepare.cpp
+++ b/llvm/lib/CodeGen/CodeGenPrepare.cpp
@@ -2809,11 +2809,11 @@
   //   <p, BB3> -> ?
   // The function tries to find or build phi [b1, BB1], [b2, BB2] in BB3
   Value *findCommon(FoldAddrToValueMapping &Map) {
-    // Tracks of new created Phi nodes.
+    // Tracks newly created Phi nodes.
     SmallPtrSet<PHINode *, 32> NewPhiNodes;
-    // Tracks of new created Select nodes.
+    // Tracks newly created Select nodes.
     SmallPtrSet<SelectInst *, 32> NewSelectNodes;
-    // Tracks the simplification of new created phi nodes. The reason we use
+    // Tracks the simplification of newly created phi nodes. The reason we use
     // this mapping is because we will add new created Phi nodes in AddrToBase.
     // Simplification of Phi nodes is recursive, so some Phi node may
     // be simplified after we added it to AddrToBase.