Update SemaExpr.cpp

Author: gmh5225

clang/lib/Sema/SemaExpr.cpp

@@ -16816,6 +16816,7 @@ ExprResult Sema::BuildBuiltinOffsetOf(SourceLocation BuiltinLoc,
     // C++11 [support.types]p4:
     //   If type is not a standard-layout class (Clause 9), the results are
     //   undefined.
+#ifndef _WIN32
     if (CXXRecordDecl *CRD = dyn_cast<CXXRecordDecl>(RD)) {
       bool IsSafe = LangOpts.CPlusPlus11? CRD->isStandardLayout() : CRD->isPOD();
       unsigned DiagID =
@@ -16828,7 +16829,7 @@ ExprResult Sema::BuildBuiltinOffsetOf(SourceLocation BuiltinLoc,
         DidWarnAboutNonPOD = true;
       }
     }
-
+#endif
     // Look for the field.
     LookupResult R(*this, OC.U.IdentInfo, OC.LocStart, LookupMemberName);
     LookupQualifiedName(R, RD);