1 files changed, 9 insertions, 2 deletions
diff --git a/test/msan/strxfrm.cc b/test/msan/strxfrm.cc
index 9a30d03c3..94b8c7024 100644
--- a/test/msan/strxfrm.cc
+++ b/test/msan/strxfrm.cc
@@ -1,14 +1,21 @@
 // RUN: %clangxx_msan -O0 -g %s -o %t && %run %t
 
 #include <assert.h>
+#include <locale.h>
 #include <sanitizer/msan_interface.h>
 #include <stdlib.h>
 #include <string.h>
 
 int main(void) {
-  const char *p = "abcdef";
   char q[10];
-  size_t n = strxfrm(q, p, sizeof(q));
+  size_t n = strxfrm(q, "abcdef", sizeof(q));
+  assert(n < sizeof(q));
+  __msan_check_mem_is_initialized(q, n + 1);
+
+  locale_t loc = newlocale(LC_ALL_MASK, "", (locale_t)0);
+
+  __msan_poison(&q, sizeof(q));
+  n = strxfrm_l(q, "qwerty", sizeof(q), loc);
   assert(n < sizeof(q));
   __msan_check_mem_is_initialized(q, n + 1);
   return 0;