diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index ed47296..ae11805 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -378,7 +378,7 @@
     Res.push_back("-fdiagnostics-show-category=id");
   else if (Opts.ShowCategories == 2)
     Res.push_back("-fdiagnostics-show-category=name");
-  switch (Opts.Format) {
+  switch (Opts.getFormat()) {
   case DiagnosticOptions::Clang: 
     Res.push_back("-fdiagnostics-format=clang"); break;
   case DiagnosticOptions::Msvc:  
@@ -1395,9 +1395,9 @@
   StringRef ShowOverloads =
     Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
   if (ShowOverloads == "best")
-    Opts.ShowOverloads = DiagnosticsEngine::Ovl_Best;
+    Opts.setShowOverloads(Ovl_Best);
   else if (ShowOverloads == "all")
-    Opts.ShowOverloads = DiagnosticsEngine::Ovl_All;
+    Opts.setShowOverloads(Ovl_All);
   else {
     Success = false;
     if (Diags)
@@ -1425,11 +1425,11 @@
   StringRef Format =
     Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
   if (Format == "clang")
-    Opts.Format = DiagnosticOptions::Clang;
+    Opts.setFormat(DiagnosticOptions::Clang);
   else if (Format == "msvc")
-    Opts.Format = DiagnosticOptions::Msvc;
+    Opts.setFormat(DiagnosticOptions::Msvc);
   else if (Format == "vi")
-    Opts.Format = DiagnosticOptions::Vi;
+    Opts.setFormat(DiagnosticOptions::Vi);
   else {
     Success = false;
     if (Diags)
diff --git a/lib/Frontend/TextDiagnostic.cpp b/lib/Frontend/TextDiagnostic.cpp
index 5baaf22..5982388 100644
--- a/lib/Frontend/TextDiagnostic.cpp
+++ b/lib/Frontend/TextDiagnostic.cpp
@@ -809,7 +809,7 @@
     OS.changeColor(savedColor, true);
 
   OS << PLoc.getFilename();
-  switch (DiagOpts->Format) {
+  switch (DiagOpts->getFormat()) {
   case DiagnosticOptions::Clang: OS << ':'  << LineNo; break;
   case DiagnosticOptions::Msvc:  OS << '('  << LineNo; break;
   case DiagnosticOptions::Vi:    OS << " +" << LineNo; break;
@@ -818,14 +818,14 @@
   if (DiagOpts->ShowColumn)
     // Compute the column number.
     if (unsigned ColNo = PLoc.getColumn()) {
-      if (DiagOpts->Format == DiagnosticOptions::Msvc) {
+      if (DiagOpts->getFormat() == DiagnosticOptions::Msvc) {
         OS << ',';
         ColNo--;
       } else
         OS << ':';
       OS << ColNo;
     }
-  switch (DiagOpts->Format) {
+  switch (DiagOpts->getFormat()) {
   case DiagnosticOptions::Clang:
   case DiagnosticOptions::Vi:    OS << ':';    break;
   case DiagnosticOptions::Msvc:  OS << ") : "; break;
diff --git a/lib/Frontend/Warnings.cpp b/lib/Frontend/Warnings.cpp
index a60fe95..f789b7f 100644
--- a/lib/Frontend/Warnings.cpp
+++ b/lib/Frontend/Warnings.cpp
@@ -51,8 +51,7 @@
                                   const DiagnosticOptions &Opts) {
   Diags.setSuppressSystemWarnings(true);  // Default to -Wno-system-headers
   Diags.setIgnoreAllWarnings(Opts.IgnoreWarnings);
-  Diags.setShowOverloads(
-    static_cast<DiagnosticsEngine::OverloadsShown>(Opts.ShowOverloads));
+  Diags.setShowOverloads(Opts.getShowOverloads());
 
   Diags.setElideType(Opts.ElideType);
   Diags.setPrintTemplateTree(Opts.ShowTemplateTree);