[sanitizer_common][test-only] Mark popen xfail on iossim (#171814)
rdar://166246774
NOKEYCHECK=True
GitOrigin-RevId: de29f24bdee7d409b855445ff52db779d06d12e6
diff --git a/test/sanitizer_common/TestCases/Posix/popen.cpp b/test/sanitizer_common/TestCases/Posix/popen.cpp
index 6bf6255..1cc7908 100644
--- a/test/sanitizer_common/TestCases/Posix/popen.cpp
+++ b/test/sanitizer_common/TestCases/Posix/popen.cpp
@@ -2,6 +2,8 @@
// CHECK: 1
// CHECK-NEXT: 2
+// XFAIL: iossim
+
#include <assert.h>
#include <stdio.h>
