diff --git a/clang/unittests/Interpreter/CodeCompletionTest.cpp b/clang/unittests/Interpreter/CodeCompletionTest.cpp
--- a/clang/unittests/Interpreter/CodeCompletionTest.cpp
+++ b/clang/unittests/Interpreter/CodeCompletionTest.cpp
@@ -50,7 +50,11 @@
   return Comps;
 }
 
+#ifdef _AIX
+TEST(CodeCompletionTest, DISABLED_Sanity) {
+#else
 TEST(CodeCompletionTest, Sanity) {
+#endif
   auto Interp = createInterpreter();
   if (auto R = Interp->ParseAndExecute("int foo = 12;")) {
     consumeError(std::move(R));
@@ -63,7 +67,11 @@
   EXPECT_EQ((bool)Err, false);
 }
 
+#ifdef _AIX
+TEST(CodeCompletionTest, DISABLED_SanityNoneValid) {
+#else
 TEST(CodeCompletionTest, SanityNoneValid) {
+#endif
   auto Interp = createInterpreter();
   if (auto R = Interp->ParseAndExecute("int foo = 12;")) {
     consumeError(std::move(R));
@@ -75,7 +83,11 @@
   EXPECT_EQ((bool)Err, false);
 }
 
+#ifdef _AIX
+TEST(CodeCompletionTest, DISABLED_TwoDecls) {
+#else
 TEST(CodeCompletionTest, TwoDecls) {
+#endif
   auto Interp = createInterpreter();
   if (auto R = Interp->ParseAndExecute("int application = 12;")) {
     consumeError(std::move(R));