1 files changed, 25 insertions, 0 deletions
diff --git a/test/msan/Linux/getresid.cc b/test/msan/Linux/getresid.cc
new file mode 100644
index 000000000000..385351dfdcde
--- /dev/null
+++ b/test/msan/Linux/getresid.cc
@@ -0,0 +1,25 @@
+// RUN: %clangxx_msan -m64 -O0 %s -o %t && %run %t %p 2>&1
+// RUN: %clangxx_msan -m64 -O0 -D_FILE_OFFSET_BITS=64 %s -o %t && %run %t %p 2>&1
+// RUN: %clangxx_msan -m64 -O3 %s -o %t && %run %t %p 2>&1
+
+#include <assert.h>
+#include <unistd.h>
+
+#include <sanitizer/msan_interface.h>
+
+int main(int argc, char *argv[]) {
+  uid_t uids[6];
+  assert(0 == __msan_test_shadow(uids, 6 * sizeof(uid_t)));
+  assert(0 == getresuid(&uids[0], &uids[2], &uids[4]));
+  for (int i = 0; i < 3; i++)
+    assert(sizeof(uid_t) ==
+           __msan_test_shadow(uids + 2 * i, 2 * sizeof(uid_t)));
+
+  gid_t gids[6];
+  assert(0 == __msan_test_shadow(gids, 6 * sizeof(gid_t)));
+  assert(0 == getresgid(&gids[0], &gids[2], &gids[4]));
+  for (int i = 0; i < 3; i++)
+    assert(sizeof(gid_t) ==
+           __msan_test_shadow(gids + 2 * i, 2 * sizeof(gid_t)));
+  return 0;
+}