Import compiler-rt r172839.vendor/compiler-rt/compiler-rt-r172839

1 files changed, 37 insertions, 0 deletions

diff --git a/lib/tsan/lit_tests/static_init4.cc b/lib/tsan/lit_tests/static_init4.cc
new file mode 100644
index 000000000000..5ecc39926a23
--- /dev/null
+++ b/lib/tsan/lit_tests/static_init4.cc
@@ -0,0 +1,37 @@
+// RUN: %clangxx_tsan -O1 %s -o %t && %t 2>&1 | FileCheck %s
+#include <pthread.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sched.h>
+
+struct Cache {
+  int x;
+  explicit Cache(int x)
+    : x(x) {
+  }
+};
+
+int g_other;
+
+Cache *CreateCache() {
+  g_other = rand();
+  return new Cache(rand());
+}
+
+void *Thread1(void *x) {
+  static Cache *c = CreateCache();
+  if (c->x == g_other)
+    exit(1);
+  return 0;
+}
+
+int main() {
+  pthread_t t[2];
+  pthread_create(&t[0], 0, Thread1, 0);
+  pthread_create(&t[1], 0, Thread1, 0);
+  pthread_join(t[0], 0);
+  pthread_join(t[1], 0);
+  printf("PASS\n");
+}
+
+// CHECK-NOT: WARNING: ThreadSanitizer: data race