diff --git a/clang/test/Interpreter/execute.cpp b/clang/test/Interpreter/execute.cpp
--- a/clang/test/Interpreter/execute.cpp
+++ b/clang/test/Interpreter/execute.cpp
@@ -3,6 +3,7 @@
 // RUN:            'auto r1 = printf("i = %d\n", i);' | FileCheck --check-prefix=CHECK-DRIVER %s
 // REQUIRES: host-supports-jit
 // UNSUPPORTED: system-aix
+// XFAIL: windows-msvc
 // CHECK-DRIVER: i = 10
 // RUN: cat %s | clang-repl | FileCheck %s
 extern "C" int printf(const char *, ...);
@@ -18,4 +19,8 @@
 inline int foo() { return 42; }
 int r3 = foo();
 
+int __attribute__((weak)) bar() { return 1; }
+auto r4 = printf("bar() = %d\n", bar());
+// CHECK-NEXT: bar() = 1
+
 %quit