diff --git a/include/clang/Driver/CLCompatOptions.td b/include/clang/Driver/CLCompatOptions.td
index e643c62c0e61e88f8f779c919de906993e8d1a6e..08bda830c7887493d2b4353753bee26750b0c7de 100644
--- a/include/clang/Driver/CLCompatOptions.td
+++ b/include/clang/Driver/CLCompatOptions.td
@@ -210,6 +210,12 @@ def _SLASH_o : CLJoinedOrSeparate<"o">,
   HelpText<"Set output file or directory (ends in / or \\)">,
   MetaVarName<"<file or directory>">;
 def _SLASH_P : CLFlag<"P">, HelpText<"Preprocess to file">;
+def _SLASH_Qvec : CLFlag<"Qvec">,
+                  HelpText<"Enable the loop vectorization passes">,
+                  Alias<fvectorize>;
+def _SLASH_Qvec_ : CLFlag<"Qvec-">,
+                   HelpText<"Disable the loop vectorization passes">,
+                   Alias<fno_vectorize>;
 def _SLASH_Tc : CLCompileJoinedOrSeparate<"Tc">,
   HelpText<"Specify a C source file">, MetaVarName<"<filename>">;
 def _SLASH_TC : CLCompileFlag<"TC">, HelpText<"Treat all source files as C">;
diff --git a/test/Driver/cl-options.c b/test/Driver/cl-options.c
index 1d623ab27dd146afffac540c5d05e163ee5bc43c..d6fe4770f47cc042629c2ae1e9db7ad9e3216988 100644
--- a/test/Driver/cl-options.c
+++ b/test/Driver/cl-options.c
@@ -109,6 +109,12 @@
 // RUN: %clang_cl /Oy- -### -- %s 2>&1 | FileCheck -check-prefix=Oy_ %s
 // Oy_: -mdisable-fp-elim
 
+// RUN: %clang_cl /Qvec -### -- %s 2>&1 | FileCheck -check-prefix=Qvec %s
+// Qvec: -vectorize-loops
+
+// RUN: %clang_cl /Qvec /Qvec- -### -- %s 2>&1 | FileCheck -check-prefix=Qvec_ %s
+// Qvec_-NOT: -vectorize-loops
+
 // RUN: %clang_cl /showIncludes -### -- %s 2>&1 | FileCheck -check-prefix=showIncludes %s
 // showIncludes: --show-includes