1 files changed, 70 insertions, 0 deletions
diff --git a/test/asan/TestCases/Windows/bind_io_completion_callback.cc b/test/asan/TestCases/Windows/bind_io_completion_callback.cc
new file mode 100644
index 000000000000..c062a799fdcc
--- /dev/null
+++ b/test/asan/TestCases/Windows/bind_io_completion_callback.cc
@@ -0,0 +1,70 @@
+// Make sure we can throw exceptions from work items executed via
+// BindIoCompletionCallback.
+//
+// Clang doesn't support exceptions on Windows yet, so for the time being we
+// build this program in two parts: the code with exceptions is built with CL,
+// the rest is built with Clang.  This represents the typical scenario when we
+// build a large project using "clang-cl -fallback -fsanitize=address".
+//
+// RUN: cl -c %s -Fo%t.obj
+// RUN: %clangxx_asan -o %t.exe %s %t.obj
+// RUN: %run %t.exe 2>&1 | FileCheck %s
+
+#include <windows.h>
+#include <stdio.h>
+
+void ThrowAndCatch();
+
+#if !defined(__clang__)
+__declspec(noinline)
+void Throw() {
+  fprintf(stderr, "Throw\n");
+// CHECK: Throw
+  throw 1;
+}
+
+void ThrowAndCatch() {
+  int local;
+  try {
+    Throw();
+  } catch(...) {
+    fprintf(stderr, "Catch\n");
+// CHECK: Catch
+  }
+}
+#else
+
+char buffer[65536];
+HANDLE done;
+OVERLAPPED ov;
+
+void CALLBACK completion_callback(DWORD error, DWORD bytesRead,
+                                  LPOVERLAPPED pov) {
+  ThrowAndCatch();
+  SetEvent(done);
+}
+
+int main(int argc, char **argv) {
+  done = CreateEvent(0, false, false, "job is done");
+  if (!done)
+    return 1;
+  HANDLE file = CreateFile(
+      argv[0], GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL,
+      OPEN_EXISTING,
+      FILE_ATTRIBUTE_NORMAL | FILE_FLAG_NO_BUFFERING | FILE_FLAG_OVERLAPPED,
+      NULL);
+  if (!file)
+    return 2;
+  if (!BindIoCompletionCallback(file, completion_callback, 0))
+    return 3;
+
+  if (!ReadFile(file, buffer, sizeof(buffer), NULL, &ov) &&
+      GetLastError() != ERROR_IO_PENDING)
+    return 4;
+
+  if (WAIT_OBJECT_0 != WaitForSingleObject(done, INFINITE))
+    return 5;
+  fprintf(stderr, "Done!\n");
+// CHECK: Done!
+}
+#endif