Index: libcxx/include/typeinfo
===================================================================
--- libcxx/include/typeinfo
+++ libcxx/include/typeinfo
@@ -203,18 +203,56 @@
     : public exception
 {
 public:
+#if defined(_LIBCPP_ABI_MICROSOFT)
+    _LIBCPP_INLINE_VISIBILITY
+    bad_cast() _NOEXCEPT
+    {
+    }
+
+    _LIBCPP_INLINE_VISIBILITY
+    ~bad_cast() _NOEXCEPT
+    {
+    }
+
+    _LIBCPP_INLINE_VISIBILITY
+    const char *
+    what() const _NOEXCEPT
+    {
+      return "std::bad_cast";
+    }
+#else
     bad_cast() _NOEXCEPT;
     virtual ~bad_cast() _NOEXCEPT;
     virtual const char* what() const _NOEXCEPT;
+#endif
 };
 
 class _LIBCPP_EXCEPTION_ABI bad_typeid
     : public exception
 {
 public:
+#if defined(_LIBCPP_ABI_MICROSOFT)
+    _LIBCPP_INLINE_VISIBILITY
+    bad_typeid() _NOEXCEPT
+    {
+    }
+
+    _LIBCPP_INLINE_VISIBILITY
+    ~bad_typeid() _NOEXCEPT
+    {
+    }
+
+    _LIBCPP_INLINE_VISIBILITY
+    const char *
+    what() const _NOEXCEPT
+    {
+      return "std::bad_typeid";
+    }
+#else
     bad_typeid() _NOEXCEPT;
     virtual ~bad_typeid() _NOEXCEPT;
     virtual const char* what() const _NOEXCEPT;
+#endif
 };
 
 }  // std
Index: libcxx/src/support/runtime/exception_msvc.ipp
===================================================================
--- libcxx/src/support/runtime/exception_msvc.ipp
+++ libcxx/src/support/runtime/exception_msvc.ipp
@@ -97,34 +97,6 @@
     return "bad_array_length";
 }
 
-bad_cast::bad_cast() _NOEXCEPT
-{
-}
-
-bad_cast::~bad_cast() _NOEXCEPT
-{
-}
-
-const char *
-bad_cast::what() const _NOEXCEPT
-{
-  return "std::bad_cast";
-}
-
-bad_typeid::bad_typeid() _NOEXCEPT
-{
-}
-
-bad_typeid::~bad_typeid() _NOEXCEPT
-{
-}
-
-const char *
-bad_typeid::what() const _NOEXCEPT
-{
-  return "std::bad_typeid";
-}
-
 #if defined(_LIBCPP_NO_VCRUNTIME)
 exception::~exception() _NOEXCEPT
 {