Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/compiler-rt/test/msan/sem_getvalue.cc

@@ -0,0 +1,22 @@
+// RUN: %clangxx_msan -O0 -g %s -o %t && %run %t
+
+#include <assert.h>
+#include <sanitizer/msan_interface.h>
+#include <semaphore.h>
+
+int main(void) {
+  sem_t sem;
+  int res = sem_init(&sem, 0, 42);
+  assert(res == 0);
+
+  int v;
+  res = sem_getvalue(&sem, &v);
+  assert(res == 0);
+  __msan_check_mem_is_initialized(&v, sizeof(v));
+  assert(v == 42);
+
+  res = sem_destroy(&sem);
+  assert(res == 0);
+
+  return 0;
+}