1 files changed, 43 insertions, 0 deletions
diff --git a/libc/test/integration/startup/gpu/rpc_interface_test.cpp b/libc/test/integration/startup/gpu/rpc_interface_test.cpp
new file mode 100644
index 000000000000..b4b03ead31c1
--- /dev/null
+++ b/libc/test/integration/startup/gpu/rpc_interface_test.cpp
@@ -0,0 +1,43 @@
+//===-- Loader test to check the RPC interface with the loader ------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "src/__support/GPU/utils.h"
+#include "src/__support/RPC/rpc_client.h"
+#include "test/IntegrationTest/test.h"
+
+using namespace __llvm_libc;
+
+// Test to ensure that we can use aribtrary combinations of sends and recieves
+// as long as they are mirrored.
+static void test_interface(bool end_with_send) {
+  uint64_t cnt = 0;
+  rpc::Client::Port port = rpc::client.open<rpc::TEST_INTERFACE>();
+  port.send([&](rpc::Buffer *buffer) { buffer->data[0] = end_with_send; });
+  port.send([&](rpc::Buffer *buffer) { buffer->data[0] = cnt = cnt + 1; });
+  port.recv([&](rpc::Buffer *buffer) { cnt = buffer->data[0]; });
+  port.send([&](rpc::Buffer *buffer) { buffer->data[0] = cnt = cnt + 1; });
+  port.recv([&](rpc::Buffer *buffer) { cnt = buffer->data[0]; });
+  port.send([&](rpc::Buffer *buffer) { buffer->data[0] = cnt = cnt + 1; });
+  port.send([&](rpc::Buffer *buffer) { buffer->data[0] = cnt = cnt + 1; });
+  port.recv([&](rpc::Buffer *buffer) { cnt = buffer->data[0]; });
+  port.recv([&](rpc::Buffer *buffer) { cnt = buffer->data[0]; });
+  if (end_with_send)
+    port.send([&](rpc::Buffer *buffer) { buffer->data[0] = cnt = cnt + 1; });
+  else
+    port.recv([&](rpc::Buffer *buffer) { cnt = buffer->data[0]; });
+  port.close();
+
+  ASSERT_TRUE(cnt == 9 && "Invalid number of increments");
+}
+
+TEST_MAIN(int argc, char **argv, char **envp) {
+  test_interface(true);
+  test_interface(false);
+
+  return 0;
+}