Index: clang/lib/Driver/ToolChains/MSVC.h
===================================================================
--- clang/lib/Driver/ToolChains/MSVC.h
+++ clang/lib/Driver/ToolChains/MSVC.h
@@ -122,6 +122,11 @@
 
   bool FoundMSVCInstall() const { return !VCToolChainPath.empty(); }
 
+  void
+  addClangTargetOptions(const llvm::opt::ArgList &DriverArgs,
+                        llvm::opt::ArgStringList &CC1Args,
+                        Action::OffloadKind DeviceOffloadKind) const override;
+
 protected:
   void AddSystemIncludeWithSubfolder(const llvm::opt::ArgList &DriverArgs,
                                      llvm::opt::ArgStringList &CC1Args,
Index: clang/lib/Driver/ToolChains/MSVC.cpp
===================================================================
--- clang/lib/Driver/ToolChains/MSVC.cpp
+++ clang/lib/Driver/ToolChains/MSVC.cpp
@@ -1555,3 +1555,11 @@
 
   return DAL;
 }
+
+void MSVCToolChain::addClangTargetOptions(
+    const ArgList &DriverArgs, ArgStringList &CC1Args,
+    Action::OffloadKind DeviceOffloadKind) const {
+  if (DriverArgs.hasArg(options::OPT_fno_rtti, options::OPT_frtti,
+                        /*Default=*/false))
+    CC1Args.push_back("-D_HAS_STATIC_RTTI=0");
+}
Index: clang/test/Driver/msvc-static-rtti.cpp
===================================================================
--- /dev/null
+++ clang/test/Driver/msvc-static-rtti.cpp
@@ -0,0 +1,5 @@
+// RUN: %clang -target x86_64-pc-windows-msvc -fno-rtti -### %s 2>&1 | FileCheck %s -check-prefix STATIC-RTTI-DEF
+// RUN: %clang -target x86_64-pc-windows-msvc -frtti -### %s 2>&1 | FileCheck %s -check-prefix STATIC-RTTI-DEF-NOT
+
+// STATIC-RTTI-DEF: -D_HAS_STATIC_RTTI=0
+// STATIC-RTTI-DEF-NOT: -D_HAS_STATIC_RTTI=0