diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 586a7ed76ee02b0d9db56b8e152adf4bba136f95..219da03f09021b3a81857bc6e21233689cbead1d 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -3230,7 +3230,7 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
   if (Args.hasFlag(options::OPT_fslp_vectorize,
                    options::OPT_fno_slp_vectorize, false)) {
     CmdArgs.push_back("-backend-option");
-    CmdArgs.push_back("-vectorize");
+    CmdArgs.push_back("-vectorize-slp");
   }
 
   if (Arg *A = Args.getLastArg(options::OPT_fshow_overloads_EQ))
diff --git a/test/Driver/clang_f_opts.c b/test/Driver/clang_f_opts.c
index c1431a1f9e2808ae8fb1cfe8bb22e1fb8e39f457..b28c2e2ba6feaf3e29271867cc2d900db6489ad2 100644
--- a/test/Driver/clang_f_opts.c
+++ b/test/Driver/clang_f_opts.c
@@ -56,8 +56,8 @@
 // RUN: %clang -### -S -fno-tree-slp-vectorize -fslp-vectorize %s 2>&1 | FileCheck -check-prefix=CHECK-SLP-VECTORIZE %s
 // RUN: %clang -### -S -fno-tree-slp-vectorize %s 2>&1 | FileCheck -check-prefix=CHECK-NO-SLP-VECTORIZE %s
 // RUN: %clang -### -S -ftree-slp-vectorize -fno-slp-vectorize %s 2>&1 | FileCheck -check-prefix=CHECK-NO-SLP-VECTORIZE %s
-// CHECK-SLP-VECTORIZE: "-vectorize"
-// CHECK-NO-SLP-VECTORIZE-NOT: "-vectorize"
+// CHECK-SLP-VECTORIZE: "-vectorize-slp"
+// CHECK-NO-SLP-VECTORIZE-NOT: "-vectorize-slp"
 
 // RUN: %clang -### -S -fextended-identifiers %s 2>&1 | FileCheck -check-prefix=CHECK-EXTENDED-IDENTIFIERS %s
 // RUN: %clang -### -S -fno-extended-identifiers %s 2>&1 | FileCheck -check-prefix=CHECK-NO-EXTENDED-IDENTIFIERS %s