diff --git a/test/Misc/backend-optimization-failure-nodbg.cpp b/test/Misc/backend-optimization-failure-nodbg.cpp
index 1e847185e81caff118a7d861e8f46002502796a8..aba37de231af3c57d54ea72b5f2a4ff97bdbfc22 100644
--- a/test/Misc/backend-optimization-failure-nodbg.cpp
+++ b/test/Misc/backend-optimization-failure-nodbg.cpp
@@ -4,7 +4,7 @@
 // Test verifies optimization failures generated by the backend are handled
 // correctly by clang. LLVM tests verify all of the failure conditions.
 
-void test_switch(int *A, int *B, int Length) { /* expected-warning {{loop not vectorized: failed explicitly specified loop vectorization}} */
+void test_switch(int *A, int *B, int Length, int J) { /* expected-warning {{loop not vectorized: failed explicitly specified loop vectorization}} */
 #pragma clang loop vectorize(enable) unroll(disable)
   for (int i = 0; i < Length; i++) {
     switch (A[i]) {
@@ -12,7 +12,7 @@ void test_switch(int *A, int *B, int Length) { /* expected-warning {{loop not ve
       B[i] = 1;
       break;
     case 1:
-      B[i] = 2;
+      B[J] = 2;
       break;
     default:
       B[i] = 3;
diff --git a/test/Misc/backend-optimization-failure.cpp b/test/Misc/backend-optimization-failure.cpp
index bb50e96aaa57832bfb23eba6d0627a7e739a2adb..1657c0cb91d5f52d379eecdc067d9cf270f18fea 100644
--- a/test/Misc/backend-optimization-failure.cpp
+++ b/test/Misc/backend-optimization-failure.cpp
@@ -4,7 +4,7 @@
 // Test verifies optimization failures generated by the backend are handled
 // correctly by clang. LLVM tests verify all of the failure conditions.
 
-void test_switch(int *A, int *B, int Length) {
+void test_switch(int *A, int *B, int Length,int J) {
 #pragma clang loop vectorize(enable) unroll(disable)
   for (int i = 0; i < Length; i++) {
 /* expected-warning@-1 {{loop not vectorized: failed explicitly specified loop vectorization}} */ switch (A[i]) {
@@ -12,7 +12,7 @@ void test_switch(int *A, int *B, int Length) {
       B[i] = 1;
       break;
     case 1:
-      B[i] = 2;
+      B[J] = 2;
       break;
     default:
       B[i] = 3;