1 files changed, 19 insertions, 0 deletions
diff --git a/clang/lib/Frontend/FrontendActions.cpp b/clang/lib/Frontend/FrontendActions.cpp
index 3d65ae32c01..a8df7fd1cb8 100644
--- a/clang/lib/Frontend/FrontendActions.cpp
+++ b/clang/lib/Frontend/FrontendActions.cpp
@@ -459,6 +459,25 @@ namespace {
       return false;
     }
 
+    virtual bool
+    ReadDiagnosticOptions(IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts,
+                          bool Complain) override {
+      Out.indent(2) << "Diagnostic options:\n";
+#define DIAGOPT(Name, Bits, Default) DUMP_BOOLEAN(DiagOpts->Name, #Name);
+#define ENUM_DIAGOPT(Name, Type, Bits, Default) \
+      Out.indent(4) << #Name << ": " << DiagOpts->get##Name() << "\n";
+#define VALUE_DIAGOPT(Name, Bits, Default) \
+      Out.indent(4) << #Name << ": " << DiagOpts->Name << "\n";
+#include "clang/Basic/DiagnosticOptions.def"
+
+      Out.indent(4) << "Warning options:\n";
+      for (const std::string &Warning : DiagOpts->Warnings) {
+        Out.indent(6) << "-W" << Warning << "\n";
+      }
+
+      return false;
+    }
+
     bool ReadHeaderSearchOptions(const HeaderSearchOptions &HSOpts,
                                  bool Complain) override {
       Out.indent(2) << "Header search options:\n";