1 files changed, 57 insertions, 0 deletions
diff --git a/test/asan/TestCases/Posix/invalid-pointer-pairs-threads.cc b/test/asan/TestCases/Posix/invalid-pointer-pairs-threads.cc
new file mode 100644
index 0000000000000..28be9b59117b8
--- /dev/null
+++ b/test/asan/TestCases/Posix/invalid-pointer-pairs-threads.cc
@@ -0,0 +1,57 @@
+// RUN: %clangxx_asan -O0 %s -pthread -o %t -mllvm -asan-detect-invalid-pointer-pair
+
+// RUN: %env_asan_opts=detect_invalid_pointer_pairs=1 %run %t a 2>&1 | FileCheck %s -check-prefix=OK -allow-empty
+// RUN: %env_asan_opts=detect_invalid_pointer_pairs=1 not %run %t b 2>&1 | FileCheck %s -check-prefix=B
+
+// pthread barriers are not available on OS X
+// UNSUPPORTED: darwin
+
+#include <assert.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+char *pointers[2];
+pthread_barrier_t bar;
+
+void *thread_main(void *n) {
+  char local;
+
+  unsigned long id = (unsigned long)n;
+  pointers[id] = &local;
+  pthread_barrier_wait(&bar);
+  pthread_barrier_wait(&bar);
+
+  return NULL;
+}
+
+int main(int argc, char **argv) {
+  assert(argc >= 2);
+
+  char t = argv[1][0];
+
+  pthread_t threads[2];
+  pthread_barrier_init(&bar, NULL, 3);
+  pthread_create(&threads[0], 0, thread_main, (void *)0);
+  pthread_create(&threads[1], 0, thread_main, (void *)1);
+  pthread_barrier_wait(&bar);
+
+  if (t == 'a') {
+    // OK-NOT: not handled yet
+    unsigned r = pointers[0] - pointers[1];
+  } else {
+    char local;
+    char *parent_pointer = &local;
+
+    // B: ERROR: AddressSanitizer: invalid-pointer-pair
+    // B: #{{[0-9]+ .*}} in main {{.*}}invalid-pointer-pairs-threads.cc:[[@LINE+1]]
+    unsigned r = parent_pointer - pointers[0];
+  }
+
+  pthread_barrier_wait(&bar);
+  pthread_join(threads[0], 0);
+  pthread_join(threads[1], 0);
+  pthread_barrier_destroy(&bar);
+
+  return 0;
+}