1 files changed, 13 insertions, 0 deletions
diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index 1558a752c30..2cf90701edf 100644
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -577,6 +577,19 @@ protected:
     if (Opts.POSIXThreads)
       Builder.defineMacro("_MT");
 
+    if (Opts.MSCVersion != 0)
+      Builder.defineMacro("_MSC_VER", Twine(Opts.MSCVersion));
+
+    if (Opts.MicrosoftExt) {
+      Builder.defineMacro("_MSC_EXTENSIONS");
+
+      if (Opts.CPlusPlus11) {
+        Builder.defineMacro("_RVALUE_REFERENCES_V2_SUPPORTED");
+        Builder.defineMacro("_RVALUE_REFERENCES_SUPPORTED");
+        Builder.defineMacro("_NATIVE_NULLPTR_SUPPORTED");
+      }
+    }
+
     Builder.defineMacro("_INTEGRAL_MAX_BITS", "64");
   }