Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/compiler-rt/test/tsan/static_init1.cc

@@ -0,0 +1,27 @@
+// RUN: %clangxx_tsan -O1 %s -o %t && %run %t 2>&1 | FileCheck %s
+#include <pthread.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+struct P {
+  int x;
+  int y;
+};
+
+void *Thread(void *x) {
+  static P p = {rand(), rand()};
+  if (p.x > RAND_MAX || p.y > RAND_MAX)
+    exit(1);
+  return 0;
+}
+
+int main() {
+  pthread_t t[2];
+  pthread_create(&t[0], 0, Thread, 0);
+  pthread_create(&t[1], 0, Thread, 0);
+  pthread_join(t[0], 0);
+  pthread_join(t[1], 0);
+  fprintf(stderr, "PASS\n");
+}
+
+// CHECK-NOT: WARNING: ThreadSanitizer: data race