1 files changed, 35 insertions, 0 deletions
diff --git a/clang/lib/Basic/CodeGenOptions.cpp b/clang/lib/Basic/CodeGenOptions.cpp
index 0c609cfa61de..182d0a2fa4d8 100644
--- a/clang/lib/Basic/CodeGenOptions.cpp
+++ b/clang/lib/Basic/CodeGenOptions.cpp
@@ -20,4 +20,39 @@ CodeGenOptions::CodeGenOptions() {
   memcpy(CoverageVersion, "408*", 4);
 }
 
+void CodeGenOptions::resetNonModularOptions(StringRef ModuleFormat) {
+  // First reset all CodeGen options only. The Debug options are handled later.
+#define DEBUGOPT(Name, Bits, Default)
+#define VALUE_DEBUGOPT(Name, Bits, Default)
+#define ENUM_DEBUGOPT(Name, Type, Bits, Default)
+#define CODEGENOPT(Name, Bits, Default) Name = Default;
+#define ENUM_CODEGENOPT(Name, Type, Bits, Default) set##Name(Default);
+#include "clang/Basic/CodeGenOptions.def"
+
+  // Next reset all debug options that can always be reset, because they never
+  // affect the PCM.
+#define DEBUGOPT(Name, Bits, Default)
+#define VALUE_DEBUGOPT(Name, Bits, Default)
+#define ENUM_DEBUGOPT(Name, Type, Bits, Default)
+#define BENIGN_DEBUGOPT(Name, Bits, Default) Name = Default;
+#define BENIGN_VALUE_DEBUGOPT(Name, Bits, Default) Name = Default;
+#define BENIGN_ENUM_DEBUGOPT(Name, Type, Bits, Default) set##Name(Default);
+#include "clang/Basic/DebugOptions.def"
+
+  // Conditionally reset debug options that only matter when the debug info is
+  // emitted into the PCM (-gmodules).
+  if (ModuleFormat == "raw" && !DebugTypeExtRefs) {
+#define DEBUGOPT(Name, Bits, Default) Name = Default;
+#define VALUE_DEBUGOPT(Name, Bits, Default) Name = Default;
+#define ENUM_DEBUGOPT(Name, Type, Bits, Default) set##Name(Default);
+#define BENIGN_DEBUGOPT(Name, Bits, Default)
+#define BENIGN_VALUE_DEBUGOPT(Name, Bits, Default)
+#define BENIGN_ENUM_DEBUGOPT(Name, Type, Bits, Default)
+#include "clang/Basic/DebugOptions.def"
+  }
+
+  RelocationModel = llvm::Reloc::PIC_;
+  memcpy(CoverageVersion, "408*", 4);
+}
+
 }  // end namespace clang