fix a few spelling errors and typos

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67758 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/CodeGenDAGPatterns.h b/utils/TableGen/CodeGenDAGPatterns.h
index a3e0af6..615802b 100644
--- a/utils/TableGen/CodeGenDAGPatterns.h
+++ b/utils/TableGen/CodeGenDAGPatterns.h
@@ -365,7 +365,7 @@
   }
   
   /// InferAllTypes - Infer/propagate as many types throughout the expression
-  /// patterns as possible.  Return true if all types are infered, false
+  /// patterns as possible.  Return true if all types are inferred, false
   /// otherwise.  Throw an exception if a type contradiction is found.
   bool InferAllTypes();